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N.Z. Journal of Marine and Freshwater Research 12 (4): 429-56 December 1978
Rates of coastal erosion and accretion in New Zealand
JEREMY G. GIBB*
Department of Geology, Victoria University of Wellington,Private Bag, Wellington, New Zealand
ABSTRACT
Rates of coastal erosion and accretion for New Zealand are calculated for the period sinceearly European colonisation. Methods used for calculating rates from cadastral plans, verticalaerial photographs and field measurements are described, evaluated, and illustrated withexamples. The most natural reference line for measurements of shoreline changes and fordefining the seaward boundary of land is the seaward limit of land vegetation. Measurementsmade from air photographs and plans at scales larger than 1:4000 have errors less than ± 1 m.As scales become small, errors increase proportionately. Along depositional shorelines, erosionand accretion generally occur at 0.5-4.0 m.y-1. Maximum erosion and accretion rates are25.4 m.y-1 at North Kaipara Head and 68.9 m.y-1 at Farewell Spit respectively. Cliff recessiongenerally occurs at 0.25 - 1.0 m.y-1 with maximum rates of 2.25 m.y-1 for mudstone cliffsat Cape Tumagain and 3.46 m.y-1 for conglomerate cliffs at Ngapotiki.
INTRODUCTION
Coastal erosion is the process of removal ofmaterial at the shoreline which leads to loss of landas the shoreline retreats landward. Accretion is theproduct of deposition of material at the shorelinewhich leads to gain of land as the coast advancesseaward.
In this study, basic information collected by theauthor has been resolved into rates of coastal erosionand accretion (Appendix 1). Calculated rates coverthe period since early European colonisation of NewZealand. Useful sources of information available forthis type of study are listed in the references at theend of the text. Information was gathered between20 March 1975 and 16 October 1977 from aroundNew Zealand. Except for Fiordland and parts of theMarlborough Sounds, a systematic reconnaissancewas completed of all accessible parts of the coast ofthe two main islands of New Zealand.
Objectives of this paper are to make availableexisting New Zealand data on rates of coastal erosionand accretion (Appendix 1), to list sources of basicinformation, and to briefly illustrate, with examples,methods used for calculating rates. Patterns of coastalerosion and accretion around New Zealand will bedealt with elsewhere.
THE SHORELINE
By definition, the shoreline, or seaward boundaryof any land, is the intersection of a specified planeof water with the beach (Allen 1972). In New Zea-land the seaward boundary of any land is definedin Section 35 of the Crown Grants Act, 1908 as". . . . the line of high-water mark at ordinary tides".This line is interpreted as the mean of all high tidesoccurring "in the ordinary course of nature through-out the year", and is generally termed "mean high-water mark" (MHWM) (Kelly 1971). The shorelineshown on hydrographic charts, cadastral and topo-graphic maps of New 2^ealand is MHWM (Mr W.Watson, Cartographic Branch, Department of Landsand Survey, Wellington pers. comm.).
By law, the land surveyor is required to make tidalobservations every day for 365 days when fixing theseaward boundary of any land (Adams 1971). It isimpractical, however, to determine MHWM by thismethod and then to trace that level along the coastby spirit levelling (Mr N. C. Gardiner, Chief Sur-veyor (rtd), Department of Lands and Survey, Well-ington, pers. comm.). In practice, therefore, MHWMis usually estimated from the position of naturalmarkers such as the seaward limit of land vegetation,a line of driftwood, or a "wetted" line along thebeach. Over the past century land surveyors inNew Zealand have adopted seven different "shore-lines" to represent the seaward boundary of any land(Fig. 1). The seaward limit of land vegetation hasbeen the most commonly preferred 'shoreline' (Figs1 & 2).
Received 23 December 1977; revision received 31 May 1978,*Present address: Water and Soil Division, Ministry of Works and Development, P.O. Box
12041, Wellington North.
430 N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
METHODS
In this study, changes in the position of the coastover the past century were determined from cadas-tral plans, hydrographic charts, vertical aerial photo-graphs, field measurements, and information sup-plied by people living near the coast. Rates werecalculated by dividing the amount of horizontalshoreline displacement by the time interval betweeneach successive survey; negative values ( - ) areerosion and positive ( + ) are accretion.
Aerial photographs were studied at Head Office,Department of Lands and Survey, Wellington, whichholds copies of all aerial photographs of New Zea-land dating from about 1934 to the present day.Cadastral plans dating from mid 19th century werestudied in district offices of the Department of Landsand Survey around New Zealand, each of whichholds a complete set of plans for its respective LandDistrict. Hydrographic charts dating from 1842 werestudied at the Hydrographic Branch of the RoyalNew Zealand Navy in Auckland. Rates have been
FIG. 1—Seven reference lines used by New Zealandland surveyors to define the shoreline (MHWM)on cadastral plans over the century 1870-1970:1 - Geodetic MHWM (average height of the high-tides over an 18.6y period); 2-"Wetted" line-3 - Driftwood line; 4 - Toe of foredune or cliff;5 - Vegetation line; 6 - Crest of beach ridge orforedune; and 7 - TOD edge of cliff.
summarised from relevant publications and from un-published sources of information including New Zea-land Government Reports, consultant's reports, andtheses on coastal processes. For Appendix 1, 72% ofthe observations listed were gathered directly by theauthor, and 28% are from published and unpublishedmaterial.
FIG. 2—Waimangaroa River mouth (west coast,South Island) and associated southern coast, 1943-1976. Coastal erosion is occurring along 10 km ofcoast either side of the mouth.
a - Run 796, photo 4, 25 May 1943.b - Run 858, photo 13, 12 April 1955c-Run SN3777, Photo G/ l , 25 November 1974d - Run SN 2983, Photo L/l , 5 October 1976.
The left hand road leading to the coast in eachphotograph was used for measurements (see Table2). The proximity of the group of macrocarpa treesto the coast reflects the amount of erosion withtime. Note the truncation of the right hand roadleading to the coast by river erosion. (Aerial photo-graphs published by permission of Department ofLands and Survey, N.Z.).
GIBB—COASTAL EROSION AND ACCRETION 431
ERRORS
Three possible sources of error may affect theaccuracy of rate calculations from plans or aerialphotographs. Firstly, successive cadastral plans of thesame locality may adopt different criteria for sea-ward boundaries (Fig. 1). Secondly, errors inherentin aerial photographs, such as relief displacementsand distortion away from the photo-centre, mayfalsify measurements (Kirk 1975). Thirdly, measure-ment errors may be made by the individual.
FIG. 3—a-Shoreline changes along the Waimangaroacoast (west coast, South Island) 1876-1976, plottedon aerial photographs taken in 1943. The obliquestrike of Holocene dune belts to the present coast-line is evidence that this coast is in the process ofrealigning, b - Ground photograph taken 12 Febru-ary 1977 looking north towards the group of macro-carpa trees (Fig. 2; fallen trees in the backgroundare evident on Fig. 2d). The erosion scarp shownis characteristic of actively eroding depositionalcoasts. (Aerial photographs published by permis-sion of Department of Lands and Survey, N.Z.).
The first possibility is dealt with by referring to thesurveyor's field book or traverse book and clarifyinghis definition of MHWM, and then by consistentlyusing the same reference shoreline (Fig. 1) at eachlocality for all measurements. In the present studythe reference shoreline was taken as the vegetationline along depositional coasts and the top edge ofcliffs along steeply cliffed coasts. The second pos-sibility of error may be controlled by establishing abase line of known length on each successive aerialphotograph as near to the photo-centre as possible.
The third possibility may be calculated if theaccuracy of measurements is known; it is generallythe most significant source of error. All measure-ments made in this study on aerial photographs andsurvey plans have an estimated accuracy of ±0.25mm. Based on this, errors have been calculated forvarious scales (Table 1). As scale decreases, errorsincrease and measurement error becomes highly sig-nificant with shoreline displacements of only a fewmetres. The most accurate measurements are achievedfrom plans and photographs at scales greater than1:4000. Small shoreline displacements of 2-5 m be-come insignificant in terms of error at scales between1:8000 and 1:16 000.
EXAMPLES
Methods used in this study for the calculation andevaluation of rates are illustrated by four examples.
AERIAL PHOTOGRAPHS
Figure 2 shows the Waimangaroa River mouth,15 km northeast of Westport, west coast, South Island(see Fig. 6). A baseline was established for 620 malong the section of road sub-parallel to the coastfrom the northern road junction to the right-angledcorner to the south. The scale of each photographwas calculated using the baseline length establishedon cadastral plans. Distances were measured alongthe southern beach road from the south end of thebaseline to the seaward limit of land vegetation.Results were converted to metres using the scale foreach photograph. Rates were calculated by dividingthese values by the time interval in years anddecimals between successive survey flights. Errorsbased on an order of accuracy of measurements oneach aerial photograph of ± 0.25 mm were thencalculated. The results show that between 1943and 1976 (33 y) about 74 m of coast has beenlost by erosion at Waimangaroa at a net rate of2.2 ±0.1 m.y-1 (Table 2).
Changes in position of the shoreline at Waimanga-roa since 1876 are summarised in Fig. 3. There hasbeen a net retreat of 235 m over the past 100 y(Item 027, Appendix 1). Past shoreline positionswere plotted from cadastral plans made in 1876 and1925 and from vertical aerial photographs shown inFig. 2.
432 N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
3 j
TOWiMSHJF | 9 3 8
SUPiRSCPtD BY S.O. MS<>f SiSi^
! % i ? >
FIG. 4—Survey Office plan 1938 of Brighton, west coast, South Island. The 1973 position of MHWM (vege-tation line) was plotted by the author from aerial photographs. Coastal erosion has resulted in a retreat ofthe shoreline along 7 km of this coast. The amount of erosion from 1867 to 1973 was measured directlvtrom we line scale on the original plan. (Plan published by permission of the Department of Lands and
FIG. 5 ~ T W O examples of field measurements fromreference points dating past shorelines. (Upper) -Stern view of Fusilier on Santoft beach (Fig. 6)20 March 1975, landward of recently constructedforedune. The wreck dates the approximate posi-tion of MHWM in 1884. Amount of accretion wasmeasured from the wreck to present-day MHWM.(Lower) - Concrete gun-emplacement at Kaitokebeach (Fig. 6) 21 March 1975, outflanked by coastalerosion exposed on the beach during low-waterspring tides. It marks the 1940 position of thesecond dune in from the sea. The amount oferosion was measured from the gun-emplacementto the position of the present-day secondary dune.
GIBB—COASTAL EROSION AND ACCRETION 433
CADASTRAL PLANS
Cadastral plans show surveyed land boundaries,including MHWM, for describing and recordingownership. Those held by the Department of Landsand Survey are of three kinds: transfers of CrownLand are recorded on Survey Office plans (S.O.s),Public Land on Deposited Plans (D.P.s), and MaoriLand on Maori Land plans (M.L.s).
The 1867 survey office plan (S.O. 1938) shown inFig. 4 is of the gold mining town of Brighton at themouth of the Fox River between Westport and Grey-mouth, west coast, South Island (see Fig. 6). In the1870s, Brighton boasted a casino, billiard saloons, and53 pubs (Nolan 1975). Today no trace of this townof several thousand people is left. A combination ofcoastal erosion and the passing of the gold rush haveled to its destruction.
TABLE 1—Measurement errors on plans of variousscales based on a plan measurement accuracy of±0.25 mm.
Scale
1:100 0001:63 3601:31 6801:15 8401:79201:60001:39601:20001:10001:792
Measurement Error(m)
± 2 5± 1 6± 8-+• 4
± 2± 1.5•+• 1 .0•+• 0 . 5± 0.25-i- 0.2
The 1867 position of MHWM shown on the planrepresents the vegetation line. Aerial photographstaken in 1973 were used to plot this same line onthe old plan using proportional dividers and geo-graphic fixed points common to both plan and aerialphotographs. Shoreline changes indicate 50-76 m ofcoastal erosion over a period of 106 y (Items 021 &022, Appendix 1).
FIELD MEASUREMENTS
Field measurements were made from a knownreference point or line dating a past shoreline to thepresent day shoreline. Two examples are shown inFig. 5. Figure 5 (upper) shows the wreck of Fusilieron Santoft beach, Wellington west coast (Fig. 6).This steel barque of 404 tons was wrecked in 1884,settling between low- and high-water marks. Overthe 97 y since the wreck the coast has built out about100 m at a net rate of 1 m.y x (Item 113, Appendix1). A foredune has been constructed and is engulfingthe wreck.
Fig. 5b shows a World War II concrete gun-emplacement at Kaitoke Beach, Wanganui (Fig. 6)that has been outflanked by coastal erosion. In 1940,it was constructed on the second dune in from thesea and is now well seaward of the foredune. Thecoast has retreated by 70 m at a net rate of 2 m.y-1
over the past 37 y (Item 114, Appendix 1).
TABLE 2—Calculation of rates of coastal erosion from measurements made from aerial photos of theWaimangaroa coast (Fig. 2) with two examples of calculation of errors (R = rate; D = horizontal distance;T = survey interval).
FlightDate
25/5/43
12/4/55
25/11/75
5/10/76
EXAMPLES
(a) D =
=
R =
=
.'. R =
(285.
- 3 7
D
T
Photo- Horizontalscale Distance
(D, m)
1:6630 285.1
1:6460 248.1
1:6810 218.6
1:6710 211.4
.1 ± 1.66) - (248.1 ±
± 3.28 m
- 3 7 m ± 8.9%
11.9 y
-3.11 m ± 8 . 9 %
-3.1 ± 0.3 m.y1
Measure-ment Error
(m)
±1.66
±1.62
±1.70
±1.68
1.62) m
SurveyInterval(T, y)
11.90
19.55
1.89
(b) D =
=
R =
=
.". R =
NetErosion
(m)
-37.0
-29.5
- 7.2
(285.1 ±
-73.7 ±
-73.7 m
1
(R,
- 3
- 1
- 3
1.66) - i
3.34 m
±4.5%
33.34 y
-2.21m
-2.2 ± 0
± 4.5%
i.l m.y-1
Rate
m.y-1)
.1 ± 0.3
.5 ± 0.2
.8± 1.8
(211.4 ±
NetRate
(m.y-1)
2.2 ± 0.1
1.68) m
434 N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
170°E North Cape
-35S Cape Brett71
65
195; North Kaipara Head
TASMAN SEA
395
- 40114; Gun-emplacement
113; Fusilier wreck
045; Farewell Spit
CHRISTCHURCH
SOUTH ISLAND
040,035.
027; Waimangaroa^ 030,025
021;022; Brighton
345Cape Turnagain; 342
340335
WELLINGTON330
Ngapotiki; 326Palliser
SOUTH PACIFIC OCEAN
OtagoPeninsula
PuysegurPoint
220
FIG. 6—General location of every fifth item in Column A of Appendix 1. Aerial photographs, survey plans,and field books for determining rates of coastal movsment are held in Lands and Survey district offices inthe cities and towns named.
GIBB—COASTAL EROSION AND ACCRETION
CONCLUSIONS
Rates of erosion or accretion may be determinedfor any locality around the New Zealand coast fromeither cadastral plans or vertical aerial photographsheld in offices of the Department of Lands andSurvey.
The seaward limit of land vegetation is the mostnatural reference line to use for defining the seawardboundary of land on the open coast.
Measurements of shoreline changes made fromaerial photographs and plans at scales larger than1:4000 generally have errors less than ± l m . Errorsincrease proportionately as scales become small sothat small shoreline displacements of 2-5 m becomeinsignificant at scales between 1:8000 and 1:16 000.
Along depositional shorelines in New Zealanderosion and accretion has generally occurred at ratesof 0.5-4.0 m.y1 . The highest accretion rate recordedwas 68.9 m.y"1 at Farewell Spit (Item 045, Appen-dix 1), whereas the maximum erosion rate recordedwas 25.4 m.y~l at North Kaipara Head (Item 195,Appendix 1).
Cliff recession has generally occurred at 0.25-l.Om.f1 with maximum rates recorded of 2.25 m.y-1
for mudstone cliffs at Cape Turnagain (Item 342,Appendix 1) and 3.46 m.y"1 for conglomerate cliffs atNgapotiki (Item 326, Appendix 1).
ACKNOWLEDGMENTS
I sincerely thank the following people who con-tributed so much to this study: the Chief Surveyorsand staff of the Department of Lands and Survey inNew Zealand, the Hydrographer and staff of theHydrographic Branch, Royal N.Z. Navy, staff of theMinistry of Works and Development, Mr Jack Johan-sen, Wellington Regional Water Board, and to allthose people living near the coast who supplied in-formation and assisted during field work.
Professor H. W. Wellman and Sir Charles Flemingsupervised this aspect of my doctoral research pro-gramme and with Dr J. D. Collen read the manuscriptand provided constructive criticisms. Mr E. Hardydraughted the figures and my wife, Ann, kindly typedAppendix 1 and draft manuscripts. Financial sup-port was provided by the Soil Conservation andRivers Control Council and the Internal ResearchCommittee of Victoria University and is gratefullyacknowledged. The permission of the SurveyorGeneral, Department of Lands and Survey, to pub-lish aerial photographs of Waimangaroa and thecadastral plan of Brighton is acknowledged.
REFERENCES
(Numbers refer to those listed in Column (/),Appendix 1)
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436 N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
22. 1977: Late Quaternary sedimentary pro-cesses at Ohiwa Harbour, Eastern Bay of Plenty,with special reference to property loss on OhiwaSpit. Water and Soil Division, Ministry of Worksand Development, Wellington. Technical Publica-tion 5. 16 pp.
23. GIBB, J. G. & JONES, I. E. unpublished 1977:Coastal erosion, protection and development atWainui Beach, Gisborne. Internal report of Waterandb Soil Division, Ministry of Works and Develop-ment, Wellington. File ref. 75/13/56. 17 pp.
24. GORDON, I. 1975: Pers. comm. (Fanner, OceanBeach, Hastings).
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29. HOLMES, R. W. 1919: Littoral drift as affectingharbour construction in New Zealand. Proceedingsof the N.Z. Society of Civil Engineers 5: 74-141.
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GIBB—COASTAL EROSION AND ACCRETION 437
60.Spit
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72. WRIGHT, L. W. 1969: Coastal changes at theentrance to the Kaipara Harbour 1836-1966. N.Z.Geographer 25(1): 58-61.
APPENDIX 1—(Overleaf) Rates of coastal erosion and accretion around the New Zealand coast tabulatedfor 471 localities. Key to columns: (A) = localities numbered consecutively as shown on Fig. 6; (B) =locality names; (C) = NZMS 1 grid reference; (D) = land forms, their age of formation, and lithologyof material forming the coast at each locality and (E) = texture of beach sediments (for abbreviation in(D) and (E) see Appendix 2)
Column (F) = survey years, information on significant erosion events, tectonic movements, establishmentof coastal subdivisions, and aggregate mining of beaches; (G) = land gained from accretion ( + ) or lostfrom erosion ( —) is tabulated as a horizontal distance in metres for each locality; (Items 312, 313, 314,and 324 record land gained by tectonic uplift from the 1855 Wellington earthquake); (H) = rates oferosion/accretion (m.y-1) for each survey interval; (I) = net rate (m.y-1) for entire survey period; and(T) = references (numbers listed correspond with those in reference list at the end of the text, and addressesof local informants are held by the author).
438
(A) (B)
N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
(C) (D) (E) (F) (c) ( H ) (0 (0N 2 H 5 1 LITHDLOGY SURVEY INTERVAL ACCRETIONS) OR RATES NET RATE DATA
GRID REF. AND AGE BEACH <v] EROSI0N( -X m ) (™>y~ ) (m«y~ ) SOURCE
JACHSON'5 BAY
002 JACKSON'S BAY S87/B07137
003 BRUCE BAY 578/300463
• 04 ERLICE QAY S78/335482
0D5 HUNTS BEACH S7B/350525
0D6 GILLE3PIE5 BEACH S70/507690
• 07 LlAimiA S57/263270
008 KCfclTIKA S5D/519559
S44/723B9Q
H d
H d
H,r/s
H r
S/G
S/G
S/G
G/5
G
S/G
S/G
1904-1920
1920-1962
1962-1971.
1362-1975
1935-1975
1884-1928
1925-1950
1930-1975
1945-1975
1945-1975
1867-1914
1914-1953
1958-1975
1930-1944
1944-1963
-50
-200
-100
+ 1D
-30
-120
-100
-300
-20
-250
-20
• 61
-3.13
-4.76
-a.34
+0-77
-0.75
-2.73
-4.0
-6.67
-0.67
-8.3
-0.43
+ 1.39
+1.47
+6.29
D
-5.0
+0.77
-0.75
-3.33
-6.67
-0.67
-6.3
3
71
19
3
012
• 13
GREVKQUTH S44/745958
RAPAHDE TRIG D 544/766974
014
015
D16
0 1 7
018
019
020
0 2 1
022
023
024
RAPAHOE
ei.RRVTD'jJN
BARRY TOWN
BARRYTDiiJW
BARRY TOLJN
BARRY TOWN
BARRYTOUN
TIRGMOANA
TIRQnDANA
NINE MILE BEACH
CARTER5 BEACH
544/772985
544/BZ309B
S37/825112
S37/B26121
S37/827130
537/831177
S57/B32187
S37/896393
537/897395
S3D/963593
S24/D7B753
NORTH BEACh S24/037753
H r S AkS7aT. -M/ST.
G
G
S/G
S/G
S
1C88-1910
1910-1971
1910-1935
1935-1971
1898-1936
1082-1901
1901-1929
1929-1975
1950-1975
1930-1975
193D-1975
1930-1975
1930-1975
1930-1975
1930-1975
1867-1973
1667-1973
1950-1975
1880-1919
1919-1968
1BB0-1919
1919-1968
1867-1884
1884-1905
1905-1921
1921-1955
1955-1968
1B76-1925
1925-1943
1943-1955
1955-1974
1974-1976
-2D
-50
-14
-24
-30
0
-50
-60
-60
-100
-160
-140
-90
-140
+ 110
-76
-50
-60
+853
+ 160
+954
+500
-104
+76
-79
-82
-37
-29.5
-7.2
-0.91
-0.82
-0.56
-0.67
-0.63
0
-0.62
-0.63
-1.JU
-2.4
-2.22
-3.56
-3.11
-?.O
-3.11
+2.44
-0.72
-0.47
-2.4
21.88
+3.26
24.46
10.2
0
-6.09
-5.49
-3.06
+5.B3
-1.61
-4.56
-3.11
-1.51
-3.81
-1.18
-2.4
-2.22
-3.56
-3.11
-2.0
-3-11
+2.44
-0.72
-0.47
-2.4
+11.51
+16.52
-2.42
-2.35
29
46
46
46
46
46
46
46
46
18
GIBB—COASTAL EROSION AND ACCRETION 439
(A)
oze
(B) ( C )
NTH WAIHANGARDA S2<t/2288aO
(D)
H,d
(E)
E/S
0 2 9
0 3 0
0 3 1
JONES CREEK
NGAHAUAU
HECTOR
524/245815
S24/336901
524/344908
032
033
034
NIKAU 524/385978
NIKAU 524/391992
MDKIHINUI TRIG AP. 517/394002
LITTLE UANGANUI S1S/512165 H,d
TE NflMU S1B/522187 H-d
S18/527Z14
KONGAHU SCHOOL
Qi*1
01*2
0(.3
KARAMEA
KARAMEA
KARAMEA
FAREWELL SPIT
S1Z/6'*9367
S12/552398
S1Z/553<*19
S1/398182
TO MblM
FAREWELL SPIT S1/39B1B2 H3m S
TD LUM
WIDENING DF SPIT OVER ENTIRE LENGTH
WIDENING DF SPIT OVER LAST 2/3 LENGTH
EROSION DF INSIDE DF 5PIT DUER FIRST1/3 LENGTH
(F)
1H9Q-1905
1905-1921
1921-191*3
19^3-1973
190<4-T96B
1899-1931
1931-196fl
1373-189**
1694-196B
1897-1975
19D2-1975
1875-1888
1BB8-19I.7
19^7-1975
1975-1977
1879-1891
1891-1901
' 1901-1968
1B79-1B91
1B91-1901
19D1-1966
1B79-1B91
1891-1926
1926-1955
1955-1963
1963-1968
1968-197<*
197<t-1977
1879-1891
1891-1926
1926-1936
1936-1968
1679-1B91
1891-1926
1926-1936
1936-1972
1891-1926
1926-1936
1936-19G8
1937
1B67-196B
193B-196B
1936-196B
1851-193B
1938-196**
196*1-1970
1970-1975
1851-1938
1938-1961*
1851-1938
1938-1961*
1936-1961*
(G)
-125
-99
-51
- 35
-17D
+<*a
- 1 9
0
+61
-<*0
- 3 2
- 1 1
- 1 1
- 8 0
+68
-94
- 5 7
+3
- 5 0
-B1
-B.6
-6.4
-2.8
-2.2
0
(I)
0
-32
-24 .
-65
-12
-2B
-67
SCHOOL MOUED INLAND
+90
+ 100
+ 140
0
+ 2471
+ 92
D
+6993
+792
+72.5
+270
-64
-8.33
-6.19
-2.32
-1.17
-2.66
+ 1.25
-0.51
0
+0.B2
- • . 5 1
-0.44
-0.B5
-0.19
-0.32
-6.67
-0 .5
-0.36
-1.19
+6.1B
-8.55
-0.B5
+0.25
-1.43
-2.79
-1.06
-1.39
-0.41
-D.96
0
-0.51
-3 .0
-2.34
0
-0.91
-2 .4
-1.B1
-0.34
-2 .8
-2.09
+0.B9
+3.33
+4.67
0
+95.04
+15.33
[I
+B0.3B
+3D.46
+0.8B
+10.38
-3.73
-2.66
+0.30
+0.64
-0.51
-0.44
-0.38
-1.D1
-D.93
-1.76
-1.38
-1.3D
-1.39
+0.89
+3.33
+4.67
+ 20.5
+68.89
+3.03
36
46
46
46
46
46
46
46
46
4fi
46
45
46*"
46
46
18
46
46
f>6
46
46
46
46
46
46
46
46
16
-2.46 . -2.46 46
Continued on next page.
440 N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
APPENDIX 1 — (Continued)
(A) (B) (c)S1/159231
(D) (R) (F)
•1*7
048
•It 9
•5Q
051
•52
PAKAbJAUr
PAKAWAU
WAIKATO
liJAIKATD
AUARDA BAY
•QNETAHLJTI BAY
33/099135
S3/1DZ125
33/091*09.7
S3/D9Z0BD
59/416801
S9/426770
070 RABBIT ISLAND 520/554283
• 7 1 TAHUWANUI BEACH S20/597287
072 TAHUNANLJI BEACH S2D/5BB287
BOULDER BANK
H 3 d
H ' d
051
055
056
D57
05B
•59
D60
061
062
063
064
065
066
067
0G8
D69
KAITERITERI
KINA
HINA-
RUBY BAY
RUBY BAY
RUBY BAY
RUBY BAY
MAPUA
flAPUA
RABBIT ISLAND
RABBIT ISLAND
RABBIT ISLAND
RABBIT ISLAND
RABBIT ISLAND
RABBIT ISLAND
RABBIT ISLAND
. S9/3975S7
S14A33411
S14A3540B
S14A54347
S14A56343
S14A61338.
514A66333
S14A67334
514A72329
S1I .A73321
SUA79322
•SHA93316
SU/505310
S14/51I.307
SHt/527303
S20/545293
H3r
Ul,f
U 1 f
H 3 r
H3r
H3r
H3r
H3r
H^d/r
H,r/d
H3d
H3d
H3d
• H 3 d
H 3 d
H , d
G
G/S
G/S
075 CENTENNIAL INN -PAEKAKARIrtI
G/S
G
1870-1923
1923-193B
'1953-1961*
1B95-19H
19U-1975
igitO-1975
1925-1975
19UD-1975
1850-1963
1850-1690
1890-1951*
195it-1963
18^*2-1888
1888-19i*2
191*1*-195U
1842-1930
1930-191* i*
1961-1975
1961-1975
1912-1945
1945-1964
1912-1964
1912-1964
1970-1975
1912-1961
1912-19S1
1923-1967
1923-1957
1923-1967
1923-1967
1923-1967
1923-1967
1923-1967
1967-1975
1923-1967
1850-1969
19^8-1971
1971-1975
1975-1977
1850-1943
1943-1944
1944-1950
1950-1954
1954-1956
1956-1957
1957-1958.
1958-1960
1924-1970
1894-1940
1940-1977
SURGE1 SEPTEMBER 11-13, 1976
-19
+ 1D
+57
-M30.
-15D
-10
-20
-100
+ 100
+00
+ 100
+20
+40
+t«D
+30
+50
0
-6
-3
0
-22
-26.2
-1.5.5
-10
-37.7
+81.7
-50
+37
0
-50
-84
-Z5
-380
+445
-73
-10
-32
+658
+43
+36
+26
+7
+23
+55.2
-12
-6
-1)
( H )
-0.36
+0.67
+2.19
21.0
-2.45
-0.3
-0.4
-2.88
+0.88
+2.0
+ 1.50
+2.22
+0.87
+0.74
+3.0
+0.57
0
-0.43
-0.21
0
-1.16
-0.5
-0.87
-2.D
-0.77
+ 1.67
-1.14
+0.84
0
+ 1.14
+0.23
-1.14
-1.91
-3.13
-8.64
+3.74
-3.17
-2.5
-13.33
+7.08
H35.83
+5.25
1-18.0
• 26 .0
+7.0
H1.5 •
+ 1.2
-0.26
-0.16
(0
+0.51
-6.BB
-0.3
-0.4
-2.ee
+0.68
+1.77
+0.96
+0.49
-0.43
-0.21
-0.42
-0.5
-0.87
-2.0
-D.77
+1.67
-1.14
+0.84
0
+1.14
+0.23
-1.14
-2.1
-B.64
+3.74
-3.93
+B.16
+1.2
-0.22
(I)
GIBB—COASTAL EROSION AND ACCRETION 441
(A) (B) (C) (D) (E) (F) (G) (H) (i) ())
• 7fc PAEhAKARIKI N160/4B9576 H^t! G 1894-1897 - 7 -2.3 7G
1897-1906 -fc -0.67 70
1906-1926 -18 -0 .9 70
1926-1940 +21 +1.5 70
1940-1958 -5D -2.78 7D
195S-1977 D D -0.72 19
D77 PAEKAKARIKI N160/491579 H,d E 1926-1941 -9 -G.f 70
19*41-1963 Ci 0 . 70
1963-1977 0 D ' -D.18 19
1907 FIRST SUBDIVISION OF PAEKAKARIKI COAST 70
078 PAEKflKARIKI PARADE N160/4955B7 ROAD FILL 1907-1976 0 0 70
079
060
0 6 1
D82
D63
PROFILE 3
TRIG BEflCH
TRIG D
PROFILE 4
PROFILE
N160/5OO596
N156/506613
M15G/512624
l»156/50a6 ie
N156/513633
H3d S/G
(STORM SURGE SEPTEMBER
H3d G/S
H3d G/E
H3d G/5
(STORM SURGE SEPTEMBER
1976-1977
1S74-1968
1966-1977
1 1 - 1 3 , 1976
1874-1968
1874-196B
1874-1943
1943-1948
1948-1952
1952-1966
1966-1973
1973-1977
1874-1943
1943-194B
1948-1952
1952-1966
1966-1973
1973-1977
11-13 , 1976
-2
+48
- 1
- 1 )
+32
+ 17
+26
-13.8
+ 1.2
+4.4
-2.9
+3.D
0)
-5
-9.7
+3.9
-4.4
-10.£
-3.0
-2.5)
- 2
+0.51
-•.14
+0.34
+0.18
+0.36
-2.76
+0.3
+G.31
-D.41
+D.75
-0.07
-1.94
+0.9B
-D.31
-1.46
-0.75
-0.03
+0.46
+G.34
+0.1B
+0.17
-0.2B
19
70
19
19
70
70
70
1B
1B
16
18
18
19
7D
18
18
18
1B
18
19
19D6 FIRST SUBDIVISION OF RAUMRTI CDWST
PROFILE 6 N156/516649 H d S 1874-1880
1880-1920
1920-1968
1966-1977
(STORM SURGE SEPTEMBER 11-13, 1976
PROFILE 7 N156/518666 H3d S 1874-1680
1BBD-1943
1943-1952
1952-1958
1958-1977 -6 - 0 . 3 2 -0 .23
(STURM SURGE SEPTEMBER 11-13, 1976
PROFILE B N156/51B6B2 H d S 1B74-1BB0
1880-1905
1905-1952
1952-1958
1958-1966
196C-1973
1973-1977 +5.3 +1.33 +0.52
(STORM SURGC SEPTEMBER 11-13, 1976
Continued on next page.
- 5 0
+29
- 5
- 1 1
-11)
- 4 0
+35
+ 12.4
- 2 5
- 6
- 6 )
+40
+20
- 2 4
+ 2.2
+4.4
+5.2
+5.3
-4 )
-8.33
+0.73
-0 .10
-1 .22
-6.67
+D.56
+ 1.30
-4.17
-0 .32
+6.67
+0.B
-0 .51
+•.37
+0.55
+0.74
+ 1.33
442 N.Z.
APPENDIX 1 — (Continued)
(A) (B) (c)
087 PROFILE 9 N156/519694
088 PROFILE 10 N156/5Z370B
089 KENAKENA TRIG N156/527714
090 KENAKENA POINT N156/527714
091 PROFILE 11 N156/532717
092 PROFILE 12 N156/54B727
JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
093 PROFILE 13 N157/556733
094 LJAIKANflE N157/5G3739
095 PROFILE 14 N157/5G9745
096 PRDFILE 15 N157/57B757
097 TRIG H N157/584765
098 PROFILE 16 N157/58977Z
(D) (E) (F) (G) ( H )
rSURGE SEPTEMBER
S
" 3 "
(STORM !
1B80-1905
1905-1968
! 11-13, 1976
1880-1905
1905-1968
(STORH SURGE SEPTEMBER 11-13, 1976
1920 FIRST
H3d S 1BB0-1B92
1892-1905
1905-1968
H d S 1877-1892
1892-1914
1914-1940
iaao-1968
I SURGE SEPTEHBER 11-13, 1976
H3d 5 1BB0-ia98
1898-1923
1923-19GB
1968-1977
(STORM SURGE SEPTEHBER 11-13, 1976
H3d S 1880-1898
1898-1923
1923-1948
1948-1968
1968-197S
1976-1977
(STORH SURGE SEPTEMBER 11-13, 1976
1923-19Z4 FIRST
H3d S 1880-1924
1924-1948
194B-1968
1968-1977
H3d S 1880-1898
189B-1957
1957-1968
1968-1977
(STORH SURGE SEPTEMBER 11-13, 1976
H3d S 1880-1908
19DB-1957
1957-1968
1968-1976
1976-1977
11-13, 1976
+143 +5.72
+52 +0.83 +2,
-4)
+119 +4.76
+52 +D.83 +1
-1)
SUBDIVISION OF PARAPARAUHU COAST
+22
+73
+96
+60
+60
+40
+ 171
-1)
+26
-40
+71
-a
-2)
+1.83
+5.62
+ 1.51
+4.0
+2.73
+1.54
+ 1.94
+1.44
- 1 . 6
+1.58
-0 .89
+2.54
+1.94
+121 +6.72
+32 +1.2B
+4 +0.1S
+24 +1.2
-B - 1 . 0
-2 - 2 . 0
-3)
SUBDIVISION OF UAIKANAE COAST
I SURGE SEPTEMBER
S
(STORM SURGE SEPTEHBER
iaao-i9oa
1908-1964
1964-1968
1968-1977
1914-1964
1964-1968
1968-1976
1976-1977
11-13, 1976
+ 116
+13
+45
-a
+120
+ 1B
-4)
+B0
+38
+51
-6
-2
-6)
+14
+34
+33
-B
+17
+17
-6
-Z
-6)
+2.64
+0.54
+2.25
-0.89
+6.67
+0.31
+1.64
+2.85
+0.77
+4.64
-0.75
-2.0
+0.5
+0.61
+8.25
-0.89
+0.34
+4.Z5
-0.75
-2.0
(I)
70
70
19
70
70
12
12
70
19
70
70
70
19
19
70
70
70
70
19
19
19
70
70
70
70
70
19
19
70
70
70
19
19
70
70
GIBB—COASTAL EROSION AND ACCRETION 443
(A)
D99
1D0
101
102
104
105
1D6
107
108
109
110
111
112
113
111.
115
116
117
11a
119
120
121
122
123
12k
125
126
127
126
(B)
TRIG T
TE HQRO
SIMS ROAD
SWAMP RDflO
DTAKI BEACH
•HYDERABAD• WRECK
UAITAREfiE BEACH
WAITARERE BEACH
MANAWflTU MOUTH NTH
FOXTUN dEACH
FOXTON BEACH
HIMATANGI
HIMATANGI
TANGIMOANA
' F U S I L I E R ' WRECK
KAITOKE BEACH
KAITOKE BEACH
UIANGAWUI AIRPDRT
STH UJflNGftNUI
CASTLECLIFF
K f l l IWI BEACH
DKEHU
MAXWELL
TRIG T
PATEfl
PATEA
POWER HOUSE RDAD
HANUTAHI ROAD
HANAUiAPOU
MANflUJAPQU
(c)N157/G08B08
N157/615S23
N157/6238<tO
N157/629855
N152/712092
N152/73D180
N152/73219B
N1<*5/736208
N11.B/737238
N14B/739253
N1W71.2290
NHtB/7fc732O
N1 £.8/71.831* 7
Nlt.3/702615
N138/566809
N13B/559816
N138/5D0823
•N137/53081.0
N137/511.B1.7
N137A1.0917
N137/l*1<*931
N137/39593B
N137/37991.2
N136/053053
N136/D50053
N129/985105
N129/95311.8
N129/93D18O
^129/922192
(D)
H , d
Hjd/r
H 3 r
H 3 p
H3p/d
H,d
H 3 d
H 3 d
H 3 d
MOUTH
H 3 d
H 3 d
H , d
H 3 d
H , d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H3d
Llm
Urn
him
H 3 d
H 3 d
Urn
Urn
him
LJm
(E)
S
G/S
G
G
S
5
S
S
MIGRATION N(+)
S
5
S
5
• S
S
s
s
5
s
s
s
s
s
s
s
5
s
s
S/G
S/G
(F)
1879-1918
1918-1968
1B79-1918
1918-1968
1918
1880-1968
1880-1968
1S7D-193D
1878-1975
181*2-1972
18<t2-1972
18i»2-1889
18B9-1962
AND S ( - )
18(42-1962
1889-1953
1889-1962
1889-1971
1889-191.3
1881*-1975
19<*D-1975
191*0-1975
191*0-1975
1379-1891.
1894-1921
1921-191*2
19U2-1962
1879-1891.
1891.-1921
1921-191*2
191.2-1962
1962-1970
1876-1893
1893-1916
191*2-1955
1953-1963
1963-1969
19D1.-1951.
1904-1951.
19Ql*-195l.
1872-1905
1905-1976
1872-19D5
1905-1939
1939-1976
19D1-1976
1fl7(*-1927
1B7t.-1953
1953-1976
191*0
1871*-1953
1953-1976
(G)
+ 19
+ 100
0
+G0
FIRST SUBDIVISION OF
+67
+67
+ 2 0
+350
+1.60
+1720N
-32005
+70
0
+300
+50
+20
+90
-70 .
- 5 6
- 5 0
- 6 0
-6Q
-120
+ 9 0
+50
+ 100
+200
+ 100
+ 10
- 2 5 . 5
-9.9
-7.6
-U.G
- < • .
-16
-20
-36
+6D
-60
-32
+59
+76
- l *
- 2 2
-1.8
- 2 D
EXTRACTION OF 1V,000i
-1.2
-23
( H )
+0.66
+2.0
+ 1.2
TE HOflO COAST
+0.76
+0.76
+0.26
+2.69
+3.5t.
36.6
-1*3.81.
+0.5B
0
+1..11
+•.61
+0.37
+ 1.0
- 2 . 0
-1 .6
-1.1*3
-1..0
-2.22
-5.1.5
+1*.5
+3.33
+3.70
+9.09
+5.00
•+1.25
-1.5
-0.1.3
-0.69
-0.1.6
-0.69
-0.32
-O.l*
-0.72
+ 1.82
-0.85
- 1 . 0
• 1.71*
+2.D5
-0.05
-0.1*2
-0.61
-0.87
TI GRfWEL
- 0 . 5 3
- 1 . 0
( i )
+ 1.31*
+0.67
+0.67
+0.76
+1 .0
+0.26
+2.69
+ 3.51.
12.333
+0.5B
0
+l*.11
+0.61
+0.37
+ 1.0
-2 .0
-1 .6
-1.1*3
-1.81
+5.05
-D.56
-0.32
-0 .1 .
-0.72
0
+0.99
-0.05
-0.1.2
-0.67
- -0.61.
Continued on
( f )
70
70
7D
70
70
70
70
12
19
70
70
31
70
31
1*2
U2
1*2
1.2
19
19
19
19
1*1
1.1
t*\
<*1
7
7
7
7
7
1d
14
7
7
7
70
70
70
67
19
67
67
19
67
67
67
19
66
67
19
next page
444
APPENDIX 1 — (Continued)
(A) (B) (c)
N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
129
1 3 0
131
132
133
134
135
lib
137
138
139
140
1H 1
142
143
144
145
146
147
148
149
150
151
SIGGB TRIE
HMJR0T0 ROftD
OH AWE BEACH
LHAWE BEACH
RAINE ROAD
WINKS TRIG
NORMANBV RDAD
GLEN ROAD
PIHAMA
PUNEBU
GANUI
LJAITAHA
Tli-LiKA
TIPQKA TRIG M
LJAREA RIVER
STENT RDAD
STENT ROAD
LEITH RDAD
AMU AHU ROAD
GAKURA
0AI1URA
HAREKALuE STREAM
i\IELJ PLYMOUTH
N129/B64234
N129/796267
N129/778275
N129/773277
N129/764277
(1129/723264
N129/676288
K1Z9/655294
W128/496372
N123A93377
N118/3B2505
N11B/360597
rMHB/358604
N11B/35661O
N118/69B372
N106/370703
N1D8/372710
(M10B/463813
l\J10B/51684Z
!M10B/525a43
N10B/531B45
N10B/59B9D5
N109/S58927
15?
153
151.
155
156
157
15B
PUKETAPU TRIG N109/730972
(D)
NEW PLYMDUTH N109/661.926 H^d
FITZROY BEACH N109/66S929 H^d
FITZRQV BEACH N109/672933 H3d
FIIZROY BEACH N109/675937 Hjd
FITZROV BEACH B1D9/679942 H3d
BELL BLOCK N109/71Q966 H3d
UILLS ROAD N 109/721.967 H j
(E)
G/S
G/S
E/S
G/S
G/S
G/S
G/S
S/G
S/G
S
S/G
G/S
(F) (G) ( H ) ( I )
19QB-195S
1902-1930
1871-1966
1871-1959
1959-1966
1940-1976
1945-196D
1872-1976
1879-1930
1912-1947
1920-1876
1920-1976
1881-1950
1BB0-1937
1937-1959
1880-1937
1937-1959
1880-1937
1937-1959
1B81-1953
1881-1953
1881-1953
1892-1975
1865-1961
1865-1961
1865-1961
1925-1975
1842-1901
1901-1921
1921-1944
1944
1842-1921
1842-1958
1B42-195B
1B42-195B
1842-195B
1881-1687
1907-1974
1B52-1945
1945-1950
1950-1957
1957-1970
1970-1976
1917-1945
1945-1950
1950-1957
1957-1964
1964-1970
1970-1976
- 3 0
- 9
- 6 0
- 5 1
- 9
- 4 0
EXTRACTION OF 36,6DOm
35
- B
0
0
-5
D
+ 4 0
+50
+42
- 2 0
+22
- 1 2
+ 14
+20
+ 10
0
+20
+ 6 4
+ 3 2
D
- 1 D
- 1 0
- 9
SEAWALL BUILT, CLIFFS
- 8 6
- 6 8
- 6 7
-100
+9
NEW PLYMOUTH HARBOUR
- 2 8
- 2 3 . 5
- 1 1 . 9
a
-9 .D2
- 0 . 9 2
-20.0
-12.3
0
-9.6
-2.7
-0.44
-0.6
-0.32
-•.63
-0 .58
-1 .29
-1 .11
5 GRAVEL
-0.34
-0.16
D
•-D.09
D
+0.70
+2.27
+0.74
-0 .91
+0.39
-0.55
+0.19
+0.28
+0.14
0
+0.21
+0.67
+0.33
0
-0 .17
-D.5
-0.39
STABILISED
-1.09
-D.59
-0 .58
-D.86
+0.D8
BREAKWATER
-0.42
-D.25
-2.38
D
-0.69
-D.15
-D.71
-2.5
a-1.37
-0.41
-0.07
-0.60
-0.32
-0.63
-0.63
-1.11
-0.34
-0.16
D
D
-0.09
a
+ 1.14
+D.2B
+0.13
+0.19
+0.28
+0.14
0
+0.21
+0.67
+0.33
D
-0.2B
-1.09
-0.59
-D.58
-0.86
' +0.08
BUILT
-0.42
-0.37
-a .76
160 AIRPORT
161 fllRPDrU
N109/7429B2
N1D9/747990
G/S
E/5
1937-194B GRAVEL EXTRACTION WILLS RDAD TO PUKETAPU
1917-1964 -45 -0 .96 -0.96
1917-1964 -15 -D.32 -0.32
( J )67
67
67
25
39
67
67
67
67
67
67
67
67
S7
67
67
6''
67
67
30
67
67
67
10
67
GIBB—COASTAL EROSION AND ACCRETION 445
(A)
16Z
163
16".
165
166
167
163
169
170
171
172
173
171.
175
176
177
17B
179
1 8 0
181
182
183
(B)
itiAITARA
DTARADA RDAO
5TH ONAERO
STH ONAERD
NTH ONAERO
NTH ONAERO
URENUI
BROWN TRIG
OLD NTH ROAO
OLD NTH ROAD
CARRS RDAO
CARRS ROAD
H I M ! TRIG
PUHEARUHE ROAD
PARIQKARIWA POINT
MONUMENT
PARININIHI TRIG
UHITE CLIFFS
RAPANUI STREAM
MOHAKATINO
MOHAKATINO
MANUKAU BARRIER
(c)N99/BDOO06.
N99/B350D5
N1D9/91D000
N99/9210D3
N99/927QO3
N99/934004
N99/951006
N99/968D17
N99/976D2".
N99/983D30
N99/987033 . •
N99/99DO37
N99/999O47
N99/045110
N99/061123
N99/070126
N99/D95151
N100/118191
N1OD/135238
N91/150305
N91/151313
N46.098258
(D)
H , d
H , d
TtH/ST.-S/ST.
Tt
M/ST.-S/ST.
TtH/9T.-S/ST.
Tt
H/ST.-S/ST.
H 3 .
TtM/ST.-5/St.
Tt
M/ST.-S/ST.
TtH/ST.-S/ST.
TtH/ST.-S/ST.
TtH/ST.-S/ST.
TtH/ST.-S/ST.
TtH/ST.-S/ST.
TtH/ST.-S/ST.
TtM/ST.-S/ST.
TtH/ST.-S/ST.
Tt
M/ST.-S/ST.
TtH/ST.-S/ST.
TtH/ST.-S/ST.
TtH/ST.-S/ST.
H , d
(E
S / B
S / E
S
s
s
s
S/G
5
S
s
s
s
s
s
s
s
s
s
s
s
5
s
181* MANUKAU BARRIER NW0B2291
1fl5 MANUKAU BARRIER NUS/D77300
186 MflNUKflU BARRIER NW065330
187 MANUKAU BARRIER
188 WHATIPU
1913-195Q
1919-1975
1SSZ-1937
1882-1931
1883-1955
1883-195B
1970-1975
1B83-195B
1883-1960
1883-1990
1883-1975
1683-1975
1880-1975
1866-19flB
1955-1975
1937-1969
1S53-1919
1919-1969
'1853-1919
1919-1969
1853-1919
1919-1969
1853-1919
1919-1959
1853-1919
1919-1969
18£»t*-1853
1953-1890
1890-1910
1910-1919
1919-1930
1930-19140
19£.0-195<t
19514-1960
1960-1968
196B-197*t
(G)
-13Q
-2t
-30
-fi
-liO
-80
-30
0
-17.5
,-12.5
-21..0
-30.0
-36
-30
-10
-12
(H) (I)
+110
-<.DS
+120
-381.
+336
-61".
+&72
-960
0
+280
a-180
-100
+500
+710
+20
+10
+80
-2.89
-0.&3
-0.35
-0.1Z
-0.53
-1.D7
-6.0
a
-0.23
-0.16
-1.26
-0.33
-0.38
-D.29
-0.5
-0.38
-1 .BS,
-2 .a
-0.11
-0.5
-D.09
+ 1.7".
-"..8
+ 1.67
-8.16
+ 1.82
-7.68
+5.09
12.28
10.18
19.2
-2.89
-0.1.3
-0.55
-0.12
-0.53
-1.07
-6.D
0
-D.23
-0.16
-0.26
-0.33
-0.38
-0.29
-0.5
-0.38
-1.89
-2.0
-0.11
-0.5
-0.09
-1.08
-2.57
-2.28
-2.40
-2.1.8
67
67
67
67
S7
19
67
67
67
S7
67
67
67
J
67
67
67
31
31
31
31
31
31
31
31
2a. •
-9.09
5D.D
50.71
+3.33
+ 1.25
13.33 +10.15
Continued on
31
42
42
1.2
42
42
42
next page
446
APPENDIX 1 — (Continued)
(A) (B) (c)
N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
19D
191
192
MURIUIAI BEACH N41/951616
MURIUIAI BEACH N41/94364B
STH KAIPARA HEAD N33/6B8042
PAPAKAMJI SPIT 1133/744110
N33/65715S
NTH KAIPARA HEAD N32/5B3146
KAIPflRA HEADLIGHTHOUSE
NTH KAIPARA HEAD N32/550159
197
198
199
20Q
NTH KAIPARABARRIER
BAVLYB BEACH
TE iilAEUIAE BAY
TE WAEiilAE BAY
N27/500350
N23/263685
S175/692263
S175/696261
TE UIAEWAE BAY
TE WAEWAE BBV
TE WAEWAE BAY
S175/736237
S175/752224
S175/757212
205
206
207
208
2D9
21Q
211
2 1 2
213
21*.
215
DREPUKI
KAWAKAPUTA BAY
COLflC BAY
RIUERTDN
RIUERTON
FERRY ROAD
ORETI BEACH
ORETI BEACH
ORETI BEACH
TDETOES BAY
TRIG A
5175/817125
S176/920Q1.7
S176/996D65
S176/076071
S176/100089
5176/223033
S181/Zl»99fl8
S181/27093B
5182/280916
S1B2/1.83777
S182/5077B5
(D)
" 3 "
H3d
H,d
V
(E)
s
S/G
G/S
S/E
S/G
(F)1B*i<i-1890
169D-191D
1910-1919
1919-191*0
191.0-1960
1960-1968
1968-197i.
1971-1975
1971-1975
1852-1926
1926-1966
1652-1926
1926~19<.2
igiiZ-1952
1952-1966
1926-1960
1652-1879
1679-1926
1926-191.3
191*3-1960
1652-1926
1926-191.3
191.3-19G0
1962-1972
1915-1976
1689-1963
1889-19D1
1901-1926
1926-1963
1963-1976
191*6-1963
1963-1976
1946-19G3
19G3-1976
191.6-1963
1963-1976
1976-1977
1 Bfl£.-1926
1928-1977
1909-1969
1881.-1963
1881-1963
1658-1966
1656-1966
1863-1963
1926-1963
1907-1963
1907-1963
1888-1969
1686-19^7
(G)
+360
D
-2D
0
-5D
-20
-772
+ 1235
+309
+B75
+663
+ 160
-250
-772
-1111
-617
-2<*7
+586
+926
+ 123
+ 15
-60
0
+24
+70
+24
0
-17
-35
-20
-in
o
• 30
0
+200
+25D
(H)
0
+2.0
+2.B
+0.65
0
-1.0
-2.69
-1.18
-3.OB
-D.29
• D.38
• 10.0
D
(0
+3.D
40. D
0
12.5
-5.0
10.43
3D.8B
+4.18
54.69
66.3
11.43
-7.35
28.59
23.Sit
36.29
14.53
+7.92
54.45
+7.24
+1.5
+6.38
-12.5
-5.0
+4.06
+17.61
-7.35
-25.44
+15.14
+ 1.5
+0.25
+0.67
+0.28
0
+0.6
+ 1.35
+3.57
+k.UG
+0.06
-D.51
+0.25
+0.67
+0.28
D
+0.8
+1.35
+3.57
• d.l.6
+D.06
-0.51
(I)42
42
31
42
42
42
42
3
3
72
72
64
64
64
£4
64
GIBB—COASTAL EROSION AND ACCRETION 447
(A) <;B)
216 UIAITUNA TRIG
217 TDETGES BAY
?1B TDETDE5 BAY
(c) (D)
S1B2/632831 H3r
E182/703830 H3d
51B2/733821 H,d
(E) (F )
18B9-19D6
1906-1966
1875-1928
1928-1965
192B-1952
1952-1969
(G)
- 1 D
-zu
- 2 6
+ 6 8
+1.0
( H )
- • . 5 9
-D-fc
-0 .53
+ 1.81.
+ 1.67
+2.35
( I ) (I)
61.
219 UAIPAPA
221 HAIDANE HAV
222 PDRPOISE BAY
223 PORPUISE BAY
22*. P0RPGI5E BAV
225
239
21.0
21.1
UAIPATI BEACH
226 WAIPATI BEACH
227 TAHAKDPfl BAV
:Z6 TAHAKOPA BAY
229 CATLIN5
S1B3/B13731* H,d
S1B3/B56731* H,,d
5183/950732 .
5183/995731.
B1H3/DQ175*i H,d
S1B1*/3O9B62
S1flt./323667
S18t./50G967
516^/518972
S179/5571Q0
5179/572122
S179/59011.2
b179/611155
5179/630165
MGLYNLLX BAY
MDIYNEUX BAY
MGLYNELJX BAV
MOLYiMtUX BA/
MQLYNEUX HAV
ALLANS BEACH
WICKLIFFt BAY
PIPIKARETU BEACH S16V357SD1.
PENGUIN BEACH S16l*/35i.82O
PURAKANLJI BAY 5161./252B78
HARRINGTON
UAIKOUAITI
LIAIKOUAITI
KAKANUI
OAMARU
5155/232906
S155/295033
5155/302037
S136A85551*
5136/51.1*653
5
S
S
5
5
S
S
5
S
E
S
S
s
s
S/G
S/G
5 / G
S/G
S
S
s
s
5
5
S
S
i
r
1868-1935
1935-191.6
191.8-1967
1888-1935
1935-191.6 •
191.8-1967
1891.-1967
1891.-191.8
1891.-1958
1958-1977
1B9li-19lt8
191.8-1977
1B97-1967
1897-1967
1691.-1967
1891.-1967
1BB9-1933
1933-1967
1865-1891
1891-191.6
191.8-1951
1951-1975
1975-1977
1B91-191.6
191.8-1951
1951-1975
181.7-1962
1962-1977
161.7-1962
1B1.7-1962
181.7-1962
181.7-1962
1939-1969
1B67-1BB8
1888-1952
1952-1972
1876-1972
1867-1972
1891-1975
1862-1968
1B61-1968
1861-1968
1957-1977
186D-1971
- 3 8
+ 6 5
- 3 0
- 6 6
+170
- 3 0
+ 5 0
+ 6 0
+21.
+ 16
+ 6 0
0
+ 5 0
- 7 0
+357
+ 153
- 6 D
0
0
-360
+ 109
-131.
- 8 5
+ 119
- 1 3
+6
0
- 8 0
+380
+290
+ 145
+ 7 0
+300
-166
- 3
+ 6 3
+239
+ 133
+1.35
+3D
+ 20
+ 11.
-100
+ 6 3
-0.81
+5.0
-1.58
-H.D
+13.08
-1.58
+0.68
+ 1.11
+0.38
+0.8!*
+ 1 .11
D
+0.71
-1 .0
+3.81.
+ 1.61.
-1.36
0
n
-6.32
+36.33
-5.58
-1.2.5
+2.09
-1..33
+0.25
0
-5.33
+3.30
+2.52
+ 1.26
+ • .61
+ 10.0
-7 .9
-0.05
+3.15
+2.28
+ 1.27
+5.16
+0.28
+0.19
+0.13
-5 .0
+0.56
-O.Dl.
+0.91*
+0.68
+ 1.11
+0.1.8
+0.72
+0.71
-1 .0
+3-61*
+ 1.61.
-0.77
-1..20
+1.33 .
-0 .62
+3.30
+2.52
+ 1.26
+0.61
+ 10.G
-1.D1
+2.28
+1.27
+5.16
+0.2B
+•.19
+0.13
-5.0
+0.56
61.
61.
1 6
61.
Si*
1 8
6k
6k
ek
19
61.
19
51
5 1
5 1
5 1
5 1
5 1
5 1
5 1
16
1 8
19
5 1
18
1 8
5 1
19
5 1
5 1
5 1
51
1.2
5 1
5 1
5 1
5 1
5 1
5 1
5 1
5 1
5 1
15
51
Continued on next page.
448APPENDIX 1 — (Continued)
(A) (B) (c)
N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
(E) (F) (G) (H)
1B61-1939
1939-1945
1945-1954
1954-1959
1955-1961*
1964-1967
1967-1970
1970-1971
1871-1973
1973-1971.
1974-1976
-50.9
- a . 5
- 2 . 1
- 2 . 1
-D .3
-a .3
-0.3
-0.3
-0.4
-D.7
-1.5
-0.65
-1.42
-a.23
-0.1.2
-0.D6
-D.10
-• .10
-••18
-n.29
-0.1.7
-1.07
(I) (I)
"249 STH liJAITAKI FAN 5137/615732
• 250 STH WAITAKI FAN S137/65D775
251 STH UAITAKI FAN S128/671B03
252 STH UAITAKI FAN S12B/683828
253 NTH WAITflKI FAN S128/7Q690D
254 NTH UAITAKI FAN S128/714939
H 2 a
H,a
1861-1939
1939-1945
1945-1954
1954-1959
1959-1964
1964-1967
1967-1970
1970-1971
1971-1973
1973-1974
1974-1976
1955-1972
1955-1972
1943-1969
1943-1969
1943-1969H z . G
(STORMS JUNE 13, AUGUST 2 , 1974
H^a G 1943-1969
255
2 5 6
2 5 7
258
259
2 6 0
2 6 1
2 6 2
263
2 6 4
265
2 6 6
2 6 7
2 68
NTH lilAITAKI FAN
NTH lilAITAKI FAN
U1AIHA0 RIVER
WAINONG
MAKIKIHI
ST ANDREWS
PATITI POINT
TIMARU
TIMARU •
CAROLINE BAY
BENVENUE
WASHDYKE
SEAFORTH
STH OPIHI
S12S/717975
S128/718005
S128/717059
5119/709189
S119/706231
S119/734354
S111/796495
5111/792503
5111/793513
S111/782524
S111/778534
S111/793563
S111/816595
S111/850635
H 2 a
H 2 a
H 3 r
H ? b
H 3 r
H2a
(STORMS
H 3 r
H j r
H , r
H 3 d
H , r
H , b
H3r/.
H^r/e
G
0
G
G
G
G
JUNE 18, AUGUST
G/S
G/S
G/S
5
G/S
G/S
G/S
G/S
1943-1969
1974-1977
19U3-1969
1899-1953
1958-1963
1953-1977
1953-1977
1877-1957
1957-1963
2, 1974
1879-1967
1S79-1967
1879-1967
1879-1967
1879-1967
1865-1934
1934-1956
1956-1967
1967-1973
1865-1932
1932-1967
1967-1977
1670-195S
1967-1977
-35.7
-8.2
-9.2
-3.4
-0.6
-•-3
-D.fi
-•-3
-0.2
-1.4
-0.6
-9.9
-32.5
-39.9
-20.9
-37.9
-6.0)
-45.5
-34.6
-7.3
-9.7
-27.1
-18.3
-6.8
-4.6
-20.1
-5.5
-6.0)
-80
+150
+5DQ
+300
-375
-170
-126.6
-33.3
-12.6
-100
-140
-80
-121
-40
a.46
1.37
0.91
0.66
0.12
a . i a
• .20
0.18
0.14
0.93
0.43
0.59
1.97
1.55
• .81
1.47
1.76
1.34
2.59
• .33
0.46
3.66
0.38
a.20
G.25
0 . 5
• .91
1.70
5.68
3.41
4.26
2.46
5.75
3.03
2.10
1.49
4 . 0
8 . 0
1.37
4 . 0
-0.50
-0.59
-1.97
-1.55
-0.81
-1.47
-1.76
-1.24
-0.38
-0.63
-0.38
-•.20
-0.28
-0.91
+ 1.70
+5.63
+3.41
-4.26
-3.17
-3.21
-1.6?
13
13
3
13
10
I.Z
13
GIBB—COASTAL EROSION AND ACCRETION 449
(A) (B) (C) (D)
269 BRDUINS 9EACH 5111/905688 H,r/o
270 NTH DRARI S102/947726 H,,
272 NTH RANGITATA 51Q3/D4579S H-i
273 BEACH ROAD S103/077822 H
274 TUENTYONE ROAD S103/110844 H^
(E)
G/5
G/S
G/S
G/S
G/S
G/S
(F)
1670-1958
1967-1977
1900-1958
1939-1967
1939-19S7
1939-1961
1961-1977
1939-1965
1939-1965
(G)
-60
-40
-5D
-9.7
-8.6
-6.D
-7.D
-19.1
-23.7
(H)
-0.G8
-4.0
-D.86
-0.35
-0.31
-0.27
-D.<*4
-0.73
-0.91
(i)
-D.G5
-0.31
-0.3k
-0.73
-D.91
(I)41]
13
to
ia
10
275
276
277
27B
279
2 8 0
282
283
284
285
2B6
2B7
2B8
289
2 9 0
2 9 1
292
293
294
295
296
297
298
299
3GD
301
302
3C3
304
3D5
306
307
NTH HINDS
TANSEY'S HDAD
STH ASHBURTDN
NTH ASHajRTON
bJAKANUI
SEAUIElil
CORBETTS ROAD-
KYLE ROAD
MAINWARING'S ROAD
STH RAKAIA
RAKAIA ROAD
McEUEDYS ROAD
McEUEDYS ROAD
TAUWJTU
BIHDLINGS FLAT
OHAINS BAY
SUMNER
CLIFTON
SDUTHSHORE
OARO BEACH
OARO BEACH
STH KAIKOURA
STH KAIKQURA
STH KAIKDURA
STH KAIKOURA
5TH KAIKOURA
KAIKOURA PENINSULA
KAIKOUHA PENIN5ULA
KAIKDURA PENINSULA
NTH KAIKOURA
NTH KAIKOURA
NTH HAIKQ'JRA
S1D3/145B65
S103/198B95
5103/255925
S103/285943
S1O3/32796B
S103/363989
S92A43035
S93/47J052
S93/537083
593/603110
593/665134
S93/703151
S93/703151
S93/752163
594/067201
S85/375356
564/114514
SBV108518
S84/105535
S56/8057B6
556/806793
549/890885
S49/902690
S49/9S789B
S49/950902
549/963B9D
S49/972875
349/588883
S49/985BW
S49/972SG2
549/969950
SW9B79B0
H 2 a
H 2 »
H 2 .
V
H I
H 2 .
H 2 .
!VH 3 r
H 3 r
H 3 r
H 3 r
H3r/d
H 3 d
H 3 d
H 3 d
H , d
H 3 d
H 3 d
H3d/r
H3d/r
H3d/r
H3d/t
H-,d/r
LS/ST.-M/ST.
H 3 r
H 3 r
H 3 r
H 3 r
H . r
G/S
G/S
G/5
G / 5
G/S
G/S
G/S
G/S
G/S
G/S
G/S
G
G
G
G
G/S
S
s
5
S
5
S
G/S
G/S
G/F
G/S
G/S
G
G
G
E/G
G/S
G/S
1939-1965
1941-1965
1941-1965
1941-1976
1942-1976
1942-1976
1Q4 ? 19*?fi
1942-1976
1942-1976
1942-1976
1942-1976
1943-1975
1943-1975
1931-1945
1945-1962
1962-1965
1965-1967
1943-1975
1862-1952
1952-1966
1870-1970
1928-1930
1930-1950
1950-1977
1849-1928
1928-1930
1930-1936
1936-1950
1950-1977
1920-1963
1942-1974
1942-1974
1942-1974
1942-1974
1942-1974
1942-1974
1942-1974
1942-1974
1942-1974
1942-1974
1942-1574
19L,2_ig74
1942-1974
-6 .0
-13.1
-9 .1
-23.8
-28.6
-23.3
-11.4
-14.6
-21.2
+ 12.1
-21.0
-66.6
-0.64
-15.5
-1.5
-3 .1
-98.3
+5Q
0
+23D
+ 18
+20
- 4 0
D
+110
+ 12
+ 152
-116
+ 120
+ 18.3
+3.7
+25.0
+ 15.2
-2.4
13.8
15.2
-1D.7
-3.1
-15.2
-11.3
+?7.5
+ 11.3
-0.23
-0.55
-0.3S
-0.6B
-0.84
-0.69
-1.36
-0.34
-0.43
-0.62
+0.36
-0.66
-2.OB
-0.D5
-0.91
-0.51
-1.53
-3.07
+0.56
0
+2.3
+9.0
+1.D
-1.48
0
+55.0
+2.0
+10.86
-4.3
+2.79
+0.59
+0.12
+D.S1
+0.49
+0.D8
+0.45
+G.4B
-0.33
-0.10
-D.47
-n.35
+0.09
+0.35
-0.23
-0.55
-0.38
-0.68
-0.64
-0.69
-0.34
-0.43
-D.62
+0.36
-0.66
-2.08
-0.5S
-3.07
+0.46
+2.3
-0.04
+ 1.23
+2.79
+0.59
+0.12
+0.81
+0.49
+0.08
+D.45
+0.46
-0.33
-0.10
-0.47
-0.35
+ •.69
+D.35
18
1B
16
1B
1S
18
18
18
18
18
18
18
33
33
33
33
18
4
4
11
52
52
49
52
52
52
52
19
6
34
34
34
34
34
34
34
34
34
34
34
34
34
Continued on next page.
450 N.Z.APPENDIX 1 — (Continued)
JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
(A) (B) (c) (D)
3 0 8
3D9
31D
3 1 1
3 1 2
313
315
3 1 6
3 1 7
318
319
320
321
3 2 2
323
324
NTH HAIKOURA
HAPUKU
HAPUKU
MANGAMAUNU
HUE-TE-TAKAPENINSULA
PALMER HEAO
PETDNE BEACH
PENGARROW
PENCARROtil
KOHANGAPIHIPIRI
KOHANGATERA
FITZROV BAY
BARING HEAP
UA1NUIDMATA
ORONGDRONGO
DRDNGDRONGO
TURAKIRAE HEAD
SI»9/0D5995
S49/D27013
S't9/Q3102'*
S49/0290I.1
• 1H/3H1M
N164/378T.8
" * / u w
N164A07138
N164A05129
N164A12122
N164A18110
N164/424106
N164/426068
N164A38064
N164/446061
N164/455055
N164/464038
H3r
H,r
H3r
H3r
H3r
H , r
H 3 d
H 3 r
H , r
H 3 r
H 3 r
H 3 r / d
H 3 r
H , r
H 3 r
H 3 r
K 0
339 ORUI N163/5i.9515
3UD CASTLEPOINT N159/6S7SB7
341 CAPE TURNAGAIN W155/02617B
3kZ CAPE TURNAGAIN N155/0351B1
343 CAPE TURNAGAIN N155/043187
3Uk CAPE TURNAGAIN N151/0£t5216
(F.)
G/S
G
G
G
G
G
S/G
(F)
325
326
327
328
329
3 3 0
3 3 1
3 3 2
333
334
335
336
337
338
NGAPDTIKI
NGAPDTIKI
NGAPOTIKI
UHITE ROCK
WHITE ROCK
TE KAUKAU POINT
TE KAUKAU POINT
TE KAUKAU POINT
GLENBURN
FLAT POINT
KAIUHATA RIUER
HOMEWOOD
HOMElilOOD
RIUERSDALE BEACH
N16B/871859
N16B/867858
N168/B63853
N16B/915B80
N168/925880
N16B/939874
N168/940877
N16B/943B78
N166/336207
N166/424270
N163/45133D
N163/463361
N163/4B63B3
N168/525455
H 3 r
H 3 .
H3a/r
VH 3 r
Hh-DtS/ST.-M/ST.
Mh-DtS/ST.-M/ST.
Mh-DtS/ST.-M/ST.
H,r/d
H 3 d
H , a
SM/ST.
SM/ST.
H , d
G
G
G
G/S
G/S
G
G
G
S
S
G
G/S
G/S
S
H3s/r
P
M/ST.
WaM/ST.
IllD
M/ST.
M/ST.
191*2-19714
191.2-1971*
1942-1974
1914 2-1971*
1855-191+7
1855-191*7
181*0-1956
1855
1S55-191.1
191.1-1971*
1655-191.1
191*1-1971.
1855-191.1
191*1-1974
1855-1956
1855-191.1
191.1-1971.
1B55-19I.1
191.1-1971.
191+1-1971+
1B55-1941
191.1-1971.
1855-191.1
191+1-1971.
1855-1975
1855
191+I+-1973
191+4-1973
191+1.-1973
191+1.-1973
194I+-1973
191*1.-1973
191.1*-1973
191.1.-1973
1971.-1977
1927-1967
1962-1977
1957-1977
1957-1977
1903-1953
1953-1972
1972-1971*
1970-1977
1962-1977
191.3-1975
191*3-1975
191*3-1975
191.3-1975
(G)
+1.0.9
+30.5
+ 18.3
-5.2
+15
+ 100
+270
EARTHQUAKE ADVANCED
• 13
+6
+ 15
• 18.5
+1.
•52
-30
-15
+37
EARTHQUAKE UPLIFT 2,
-269.3
- 9 8 . 7
-22 .3
- 2 0 . 1
- 2 0 . 7
-12 .2
-6.9
-10
-ma
-1*0
-2B
-2
+52
-35
-17
-1.0
-'..6
-6D
-72
-2<*
-52
(H)
+ 1.32
+0.98
+0.59
-0.17
+0.16
+1.09
+2.33
SHORELINE 30-
+0.15
•D.18
+0.10
+1.18
+0.06
+2.33
+0.15
+0.22
•0.12
•0.60
-0.91
-0.1*5
+0.32
+0.77
•0.11.
0
+0.31
45m ABOUE HHU
- 9 . 4 5
- 3 . 4 6
-0.79
-0.71
-0.73
-0.43
-D.21.
-0.26
-3.33
-2.5
-2.67
-2.0
-0.1
U)+1.3Z
+a.9fl
• 0.59
-0.17
•0.16
+1.09
+2.33
+0.69
•0.15
+0.18
-0,45
+0.10
+0.31
-9.45
-3.46
-0.79
-0.71
-0.73
-0.43
-0.24
-0.26
-3.33
-2.67
-2.0
+1.06
-1.84
-a .5
-5.7
-0.31
-1.88
- 2 . 2 5
-0 .75
-1 .63
0
5
-D
-1
-2
-0
- 1
i 7
.31
.SB
.25
.75
.63
(r)34
34
34
21
21
21
69
69
69
3
3
GIBB—COASTAL EROSION AND ACCRETION 451
(0 (B) (c) (D) (E) (F) (c) (H) ( I ) (I)345 CAPE TURNAGAIN N151/049230 Wo
H/ST.
31.6
31.7
31.8
3 4 9
3 5 0
3 5 1
352
353
354
355
356
357
358
359
360
361
362
363
J3G4
CAPE TURNAGAIN
WHANGAEHU
UHANGAEHU
UAIMARAMA
WAIMARAMA
UJAIMARAMA
WAIMARAMA
UAIMARAMA
UAIMARAMA
HAUPOURI
KIDNAPPERS
KIDNAPPERS
KIDNAPPERS
CLIFTON
CLIFTON ROAD
TE AWANGA
EAST ROAD
HAUMOANA
OUTFALL
N151/041243
N151/D41256
N151/048272
N142/4D59B1
N142/403983
N142/402987
N142/400991
N142/406977
N142/40002O
N135/467159
N135/455205
N135/438199
N135/419208
N135/41D210
N135/411210
N135/388221
N135/36924O
N135/361Z56
N135/353276
UoM/ST.
TM/ST.
TM/ST.
Mt( I )K/ST.
H , d
H 3 d
H 3 d
Mh+Mt(I)M/ST.-S/ST.
H 3 d
PmM/ST.
CONGL.
U 2 n
CONGL.
Hpl»
CONGL.
H , r
H 3 r
H 3 r
H , r
H 3 r
H 3 r -
G
G/S '
G/S
G
G/S
G/S
5
G-CONGL.
S
-
G/S
G/S
G/S
G
G
G
G
G
G
1943-1975
1943-1975
1943-1975
1937-1952
1952. -972
1972-1976
1937-1952
1952-1972
1972-1976
1976-1977
1965 COflSTAL
1937-1952
1952-1972
1972-1976
1976 1977
1972-1976
1964-1977
1904-1977
1930-1977
1950-1976
1937-1976
1937-1976
1936-1948
1948-1963
1963-1974
1931-1933
1933-1937
1937-1949
1949-1957
1957-1974
1948-1963
1963-1969
1969-1976
1936-1948
1948-1963
1963-1969
1969-1974
1974-1976
1936-191.8
1943-1963
1963-1964
1964-1969
1969-1974
1974-1976
1936-1948
1948-1963
1963-1969
1969-1974
- 3 6
- 3 6
- 1 2
-13.5
-12.8
-7.5
-3.3
-6.7
-2.2
-9.7
SUBOIUISION
-28.2
•3.0
-5.4
-2.4
-6.8
-3.4
+5.1
- 1 0
-5.0
-16.0
-8.0
-n.6
-14.0
-50.1
-6.72
-8.4
-41.16
-17.64
-9.24
-16.0
-6.8
-18.0
+2.0
-24.0
-2.0
-7.4
-10.6
-4.0
- I4.6
+21.2
-15.9
-13.3
-4.6
-18.0
-3D.0
+108.2
-166.7
-1.13
-1.13
-0.38
-0.9
-0.64
-1.5
-0.22
-0.34
-0.55
-13.86
ESTABLISHED
-1.88
•0.15
-1.35
-3.43
-1 .7
-0.26
•0 .07
-0 .21
-0 .19
-0 .41
-0 .21
-0.05
-0.93
-4.55
-3.36
-2.1
-20.58
-2.26
-0.54
-1.07
-1.13
-2.57
+0.17
-1.6
-0.33
-2.4
-5.3
-0.33
-0.97
+21.2
-3.1B
-2.66
-2.3
-1.5
-2.0
+13.03
-33.34
-1.13
-1.13
-D.38'
-0.85
-0.55
-0.79
-1.7
-0.26
+0.07
-0.21
-0.19
-0.41
-0.21
-1.7
-1.93
-1.46
-1.05
-0.78
-2.79
18
18
18
26
26
26
26
26
26
26
3
26
26
26
26
26
43
43
24
18
18
18
20
20
18
43
43
43
43
43
20
20
23
20
20
18
13
19
20
20
20
18
18
19
20
20
18
18
Continued on next page.
452
APPENDIX 1 — (Continued)
(A) (B) (c)
N.Z. JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
370
371
372
373
374
375
N134/3JS312
SOUTHERN HAUKE HA* N134/335336
B134/335378
WEST SHORE
BAY VIEW
UHIRINAKI
TANGOIO
N124/303407
N124/29B473
N124/312523
N124/342577
MURIUAI BEACH M07/320294
UAIKANAE BEACH N9B/33D33D
WAIKANAE BEACH
N98/37036Z •
(D)
H3r
H,r
n 3 u
H,d
(E)
S/G
G
376
375
380
3S1
3B2
383
2BU
TITIRANGI
TUAMDTU
SPONGE BAY
TUAHINE POINT
UAINUI BEACH
UIAINLJI BEACH
UAINUI BEACH
N9SAQ5353
N98A25327
N96/440326
N98/444323
N98A'*7335
N9Q/1.523147
N98/I.6O35G
H 3 d
Diu-Lwh.M/ST.
Sa-cS /ST. -M/ST.
Sa-cS /ST . -M /ST .
H 3 d
H 3 d
H_d
(F) (G)
LJAINUI BEACH N98/47D364
MAKARORI BEBCH N98/503386
'3 U
H,d
1936-19*48
1948-1962
1962-196".
1961.-1969
1969-1972
1972-197".
1936-191.B
1948-1962
1962-1969
1969-1972
1972-1974
1939-1940
1940-1941
1941-1942
1942-1943
1943.75-1943.96
1943-1946
1946-1948
1948-1950
1950-1952
1952-1954
1936-1§69
1969-1974
1882-1906
1906-1936
1936-1969
1969-1974
1936-1974
1936-1974
1934-1972
1931-1934
1934-1972
1886-1975
1886-1910
1910-1942
1942-1975
1886-1910
1910-1942
1942-1975
1886-1910
1910-1942
1942-1975
1886-1926
1926-1975
1886-1975
1887-1976
1887-1976
1887-1976
1889-1976
1914-1976
1921-1976
1891-1976'
•4 .0
+6.0
+2.6
+10.6
•6 .8
-19.3
•3 .0
•4 .0
+8.3
+ 1.7
-29.2
+19.D5
-42.29
+17.72
+11.43
+8.57
+16.19
•4.38
+8.57
-21.72
•4.76
+ 13.0
-23.7
+50.0
+20.0
• 18.5
-16.5
• -29 .1
-28.7
-29.1
+20.0-
-28.7
+290
+19
+44
+20
+ 18
+15
+47
+ 16
+22
+2?
+35
+ 1 0
- 6 2
-49.8
-2D.5
-17.8
0
+8.1
- 1 . 1
+11.1
(H)
+0.33
+0.43
• 1.3
• 2.12
+2.27
-9.65
+0.25
+0.29
+1.19
+G.52
-14.6
+33.42
-34.38
+15.41
+13.45
+40.81
+6.11
+2.67
+4.49
-7.78
+3.75
+0.39
-4.74
•2.08
+D.67
•0.56
-3 .3
-0.77
-0.76
-0.77
•6.67
-0.76
+3.26
+0.79
+ 1.38
+0.61
+0.75
+U.47
+ 1.42
+0.67
+0.69
+0.67
•o.aa
+0.20
-0.70
-0.56
-D.23
-0.20
0
•0.13
-0.02
.+0.13
+0.28
-0.32
•1.88
•-0.28
+0.78
-0.77
-0.76
-0.77
-0.21
•3.26
+ 1.07
+0.90
•0.67
+D.51
-0.70
-0.56
-0.23
-0.20
0
+0.13
-D.02
+0.13
(I)20
20
20
20
20
20
20
43
43
43
43
18
18.
19
18.
42
42
42
42
42
42
42
42
42
42
42
42
42
GIBB—COASTAL EROSION AND ACCRETION 453
(B) (c) (D) (E) (F)
3Q7
3B8
3B9
3 9 0
3 9 1
3 9 2
393
394
3 9 5
3 9 6
3 9 7
3 9 6
399
4 0 0
4 0 1
4 0 2
403
4 0 4
4 0 5
4 0 6
4 0 7
4 OB
4 0 9
4 1 0
4 1 1
4 1 2
4 1 3
TATAFDURI BEACH
TURIHAUA BEACH
POUAUIA BEACH
UHANGARA BEACH
TOLAGA BAY
TOLAGA BAY
KAIAUA BAY
ANAURA BAY
TOHOMARU BAY
HAUTAI BEACH
HAUTAI BEACH
KAUIA KAUIA BAY
KAWA KAIiJA BAY
KAUIA KAUIA BAY
HICKS BAY
GPAPE
OMARUMUTU
LOWER WAIAUA
TIRDHANGA
HIKUUIAI BEACH
HIKUUAI BEACH
OPOTIKI
UIAIOTAHI BEACH
yAIOTAHI BEACH
WAIOTAHI SPIT
OHIUIA
OHIUIA
N96/521395
N9B/53J412
N9B/570436
N9B/6D7492
N89/68B710
N89/682726
N90/705802
N89/6918B3
NB1/701010
N63/9GB570
N63/8B5590
N63/767617
N63/74762B
N63/732643
N6Z/69B677
N7D/B38218
N70/B20215
N7O/B0O212
N69/7B0209
N69/750207
N69/722206
N69/720206
M69/6B0206
N69/655207
B69/6302DB
' N69/610211
N69/601212
H 3 d
H 3 d
H , d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 r
H 3 r
H 3 r
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H3d
H 3 d
H , d
H 3 d
H 3 d
H 3 d
H , d
OHIWA SPIT
415 • DHOPE SPIT N69/56321B H.d
•416 OCEAW ROAD N69/540223. H,d
417 OHOPE BEACH N69/500234
418 OHOPE BEACH B69/470247
'3U
H3d
H.d
B/S
S/G
S
S
1896-1976
1920-1976
1915-1955
1955-1975
1396-1975
1B96-1976
1896-1976
1906-1976
1910-1976
1B96-1976
1913-1976
1912-1976
19QG-1975
1900-1975
1900-1975
1916-1976
1945-1964
1964-1971
1945-1964
1964-1971
1945-1964
1964-1971
1945-1964
1964-1971
.1945-1964
1964-1971
1BS6-1976
.1945-1964
1964-1971
1945-1971
1945-1971
1945-1971
1945-1971
1890-19D8
19DB-1938
1938-1945
1945-194B
194B-1959
1959-1970
1970-1976
1BS7-187B
1B7B-1909
1909-1945
1945-1959
1959-1965
1965-1970
1970-1971
1971-1976
1886-1945
"1945-1976
1944-1977
1944-1977
1953-1976-
(c)D
+22. U
-7 .6
-11.8
+ 1.6
+68. D
+27.2
+<*.2
-1.3Z
+61*. D
+3D.1
+39
+75
+ 13Q
+25
-68
+32
-50
-15
+25
-30
+22
+5L-
-20
+14
+8
+15
'-47
-30
+ 100
-100
-80
-15
-61
-5
-120
-25
-35
-40
-12
-4B
+30
+23
•+B0
( H ) (I ) (I)
+d.4r
-0.19
-0.59
+0.02
+0.B5
+0.34
+0.06
-0.02
+0.80
+0.47
+0.61
+ 1.0
• 1.73
+ 1.12
•a . 80
+ 1.32
+0.40
-0.32
+0.G2
+0.B5
+0.34
+0.06
-0.02
•0.80
+0.47
+0.61
+1.0
+1.73
+1.12
•0.80
62
62
42
42
42
62
27
27
27
-7.14
-0.42
+2.14
-O.BO
+3.57
-1.58
+3.14
+0.56
-1.05
+2.0
+0.31
•0.58
-1.81
-1 .15
+5.56
-3.33
+2.B6
-6.67
+B.64
-7.27
-2 .5
-5.43
-0.16
-3.29
-1.29
-6.09
-8.60
-7.59
-10. T,
+0.B5
+2.26
+0.91
+0.70
+3.48
-0.69
+0.27
+0.38
-0.31
+0.56
+0.32
+0.31
+0.58
•-1.81
-1.15
0
-3.15
+1.33
+0.91
+0.70
+3.48
Continued on
27
27
27
27
27
27
27
19
27
27
27
27
27
27
55
55
22
fl
22
22
22
22
22
22
22
22
22
22
22
22
22
27
27
19
next page
454APPENDIX
(A)
4'.9
4 2 0
4 2 1
4 2 2
4 ^ 3
4 2 4
4 25
4 2 6
4 2 7
426
4 29
4 3 0
4 3 1
4 3 2
433
434
435
436
437
43B
439
N.Z.1 — (Continued)
(B)
LMAKATANE
UHAKATfiKE
ORINI
GDLF C0UR5E
AIRPORT
RANGITAIKI
RANGITAIKI
TARAUERA
TARAUERA
MATATA
HERERU ROAD
PIKDWAI
OTAMAHAKAU
R0DGER5 ROAD
PUHEHJ.NA BEACH
LITTLE UAIHI
MAKETU
KAITUNA
PAPAMOA BEACH
DOMAIN ROAD
TE MAUNGA
(c)N69/44D272
N69/42527B
N69/4OO292
N69/386297
*69/360306
N68/320314
N66/302319
N68/270331
N68/232338
M68/2QD347
N68/170359
N68/130376
N6B/ae0402
N68/03a433
N6B/990463
N68/945500
N59/9155D5
K58/870520
N5B/B20550
N58/760577
1(58/710607
Jou
(V
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H-,d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H 3 d
H , d
JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4), 1978
441
4 4 2
4 4 3
MAUNGANUI
MOUNT MAUNGANUI
MATAKANA ISLAND
^58/655657
M58/654653
^5B/63565D
i444 MATflKANA ISLAND N58/625667
445 MATAKAIVA ISLAND
(D) (E) (F) (G) ( H ) ( i ) (I)5
S
5
S
S
s
s
E
S
S
S
s
s
s
5
5
S
s
5
S
5
5
5
S
S
5
S
1944-1961
1961-1974
1BB6-1962
1944-1961
1961-1974
1686-1968
1968-1976
1944-1961
1961-1974
1944-1963
1963-1974
1B86-1962
1944-1963
1963-1974
1886-1962
1943-1963
1963-1973
1943-1963
1963-1974
1943-1963
1963-1974
1943-1963
1963-1974
1943-1963
1963-1977
1943-1963
1963-1977
1943-1977
1946-1960
1960-1974
194B-1960
1960-1974
1948- I960
1960-1974
1943-1960
1960-1974
1943-1959
1959-1974
1943-1959
1959-1974
1943-1959
1959-1974
1852-1954
1852-1901
19D1-1927
1927-1948
1948-1954
1954-1970
1852-1901
1901-1927
1927-1948
1946-1954
1954-1970
1943-1977
+15
- 3 0
+ 2 0
+ 15
+26
+ 1D0
+60
+20
+ 14
+43
+22
+ 101
+30
+20
+ 101
+ 12
0
+ 14
+8
- 3 4
- 8
+ 1 0
0
+ 2 8
- 2 8
+ 1 9
- 1 9
- 1 3
- 9 0
- 2 2
+ 20
+5
+28
+ 15
- 8
+ 14
- 1 5
- 1 5
- 1 8
+ 8
- 1 8
- B
- 7 0 . 1
- 2 4 . 4
+158.5
+61.0
+292.6
- 7 0 . 1
+167.6
-126.D
+61.0
+61.0
-57.9
+62
+0.68
-2.31
+0.26
+0.B8
+2.D
+ 1.22
+7.5
+ 1.18
+ 1.08
+2.26
+2.0
+ 1.33
+1.58
+1.82
+ 1.33
+0.6
0
+0.7
+0.73
-1.7
-0.73
+0.5
0
+ 1.4
~Z.D
+0.95
-1.36
-a.39
-7.5
-1.57
+ 1.67
+0.36
+2.33
+ 1.07
-G.47
+ 1.0
-0.94
-1.0
-1.13
+0.53
-1.13
-0.53
-0.69
-Q.41
+6.1
+2.9
+48.77
-4.38
+3.42
-4.92
+2.9
+10.17
-3.62
+ 1.62
-0.5
+0.26
+1.37
+1.78
+ 1.13
+2.17
+ 1.33
+ 1.67
+ 1.33
+0.4
+0.71
-1.35
+0.32
a
D
-0.35
-4.31
+D.96
+ 1.65
+0.19
-0.97
-0.32
-0.84
-D.69
+3.54
+0.88
+ 1.82
27
27
56
27
27
56
19
27
27
27
27
56
2 7
27
5 6
27
2 7
27
2 7
27
2 7
2 7
2 7
2 7
27
2 7
27
2 7
27
27
27
27
27
21
27
27
2 7
27
2 7
27
27
27
4 2
4 2
42
42
UZ
3 1
42
42
42
42
31
2?
APPENDIX 455
(A) (B) (C) (D)
446 MATAKANA ISLAND N5B/550752 H d
1*1*7 MflTArfANA ISLAND N56/516800 H,d
(E)
443 H,flTIhATI
449 BOWENTDLIN
U A I H I GEACH
452 LJAIh l BEACH
453 UlAIHI BEACH
!M54/483B'*4 H d
N53A72862 H,d
I\J53/4 46899
N53/44BBg9 H,d
(VEGETATION LINE)
4 55 bJAIHI BEACH N53/44D912 H d
456 uJAIHI BEACH N53/42B933 H,d
J.5S BUFFALO BEACH NW200633 H d
•4 5 9 KUADTUWU NttO/215761 H d
^.60 MIRANDA IV*B/B102i.a H r
iUQ'\ MANGATAUHIRI SPIT N3l*/3DD213 H d
*.62 MftNGATAUHIRI SPIT N3i./29i.225 H,d
S
S/G
G/S
(F)
1960-197^
19D2-1966
191.6-1959
1969-1977
19ifB-1969
1969-1977
19i*B-1969
19S9-1977
1957-1961
1961-1961*
191*2-1963
1963-1961.
196i*~1969
1969-1975
1963-1961*
1964-1969
1969-1975
1929-1939
1939-1957
1957-1965
1942-1963
1963-1964
1964-1969
1969-1975
1929-1948
1942-1963
1963-1964
1964-1969
1969-1975
1919-1929
1942-1963
1963-1964
1964-1969
1969-1975
(c)
+127.9
( H ) ( i )
+21..0
-46.1
+66.D
-53 . D
+9.5
-6 .5
-7 .9
-1 .6
+3t*.5
D
-24.D
+ 15.7
+42.4
-55.0
+9.2
+33. n
-1.3
+6.6
-13.0
+3.5
+72.0
-12.2
+34.2
-30.5
+Z.0
+ 2.92
+D.57
-1.17
+3.93
+2.0
+0.48
-6.75
-3.40
-1.5
-1.33
0
-10.88
•e.D
-2.25
+68.75
-10.29
+ 1.71
-6.77
-1.53
- • . 2 9
+3.45
0
-3.0
+0.77
+44.17
-10.83
+ 1.65
• 1.74
-0.06
+6.88
-2.52
+0.63
+7.2
-0.55
+35.63
-5.92
+0.36
10. APRIL 1966 UIAIHINE STORM EIRDDED 14-15m DUNE
1961 ERODED 13m FOREDUNE
-401930-1969
1974-1977
1934-1957
1871-1934
1934-1953
1871-1934
1934-1953
1953-1973
1973-1976
-3.7
-80.5
+60
+32
+40
+15
-5
-1.03
-1.23
-3.5
+0.95
+3.56
+0.63
+ 1.67
-0.5
-2.33
+ 1.58
+2.0
-0.97
-0.73
+D.29
+D.36
+ 1.74
-0.13
+7.2
-1.D3
-1.23
-3 .5
+ 1.20
+D.41
(I)
27
27
27
63
63
63
63
63
18
63
10
35
35
3
53
59
60
GO
6D
60
5
5
Continued on next page.
456 N.Z.
APPENDIX 1 — (Continued)
JOURNAL OF MARINE & FRESHWATER RESEARCH 12 (4) , 1978
A)
163
465
466
4 6 7
4 6 8
469
4 7 0
( B )
MANGATAWHIRI S P I "
NGUNGURU SPIT
UHANANAHI SPIT
DKUPE BEACH
OKUPE BEACH
OKUPE BEACH
MIMIUIHANGATA BAV
MIMIUHANGATA 6AV
(c)N34/292238
N20/Q23080
N16/973218
N16/9353OO
N16/935307
N16/936314
N16/923314
N16/927325
(D)
H 3 d
3°
H 3 d
H 3 d
H 3 d
VH 3 d
H 3 d
H . d
(E)
s
s
s
s
ssss
(F)
1fl71-193*i
193l*-195D
1950-1953
1953-1961
1961-1963
1963-1973
1973-1976
1871-193*.
19£.2-195D
1950-1953
1953-1961
1961-1963
1963-1966
1966-1968
1968-1973
1973-1976
191*2-1959
1959-1963
19<*2-1951
1951-1961
1961-1963
1880-1970
188D-1970
1880-1970
1880-1970
1880-1970
(G)
+<*a
- 7 6
+18
+ 15
+33
- 5 3
- 7
0
0
- 4 0
- 6 5
+20
- 4 5
- 4 5
- 6 0
- 3 0
- 2 0
0
+20
- 2 0
0
• 2 0
+ 150
+20
+6
- 4
( H )
+0.63
-12.67
+6.9
+1.8S
+ 16.5
-5.3
-2.33
0
0
-13.33
-8.13
+ 10.0
-15.0
-27.5
-15.0
-10.0
-1.18
0
•2.22
-2.0
0
+0.22
• 1.67
+0.22
+0.07
-0.04
( I )
-0.29
-2.52
-0.95
0
+0.22
.1.67
+0.22
+0.07
-0.04
( I )
6 0
6 0
60
6 0
60
5
5
60
60
60
60
60
6 0
5
5
5
5
60
6 0
60
6 0
60
9
9
9
9
9
APPENDIX 2—Standard abbreviations for Quaternary and older lithologies. Abbreviations marked with anasterisk are adopted from observations during field work and are not recorded on N.Z. Geological Surveygeological maps. Others are adopted from N.Z. Geological Survey Quaternary geological maps of N.Z.(1973a, b) and from Folk (1968).
PLEISTOCENELower Middle
Hid
WmWif
Upper
H2d
H2mH2a
Haj
t
Lithologies older than
Present day beaches
HOLOCENE
H3d*H3r*H3b*H3r/dH3mH3aH3jH3sH3t
LANDFORM
DuneBeach ridgeBarrier ridgeBeach ridge and duneCliffCliffCliffCliffCliff
f M/ST. Mudstone\ S/ST. Sandstone[ CONGL. ConglomerateJ G. O-1.O0)I S. «-l.O0)
LlTHOLOGY
SandGravelGravel and sandGravel and sandMarine and estuarine depositsAlluvial and glacial outwash fansLahar depositsASwamp and lacustrine depositsTillConsolidated mudConsolidated sandConsolidated gravelUnconsolidated gravelUnconsolidated sand