dec 11 1964 taken from the library. · OVXXXVO CvJ-4

lational Bureau of Standards Library, N.W. Bldg

dec 11 1964

CRPL-F 243 PART B

Reference book not to be taken from the library.

FOR OFFICIAL USE

PART B

SOLAR - GEOPHYSICAL DATA

ISSUED

NOVEMBER 1961

U. S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS

CENTRAL RADIO PROPAGATION LABORATORY BOULDER, COLORADO

CRPL-F 243 PART B

NATIONAL BUREAU OF STANDARDS CENTRAL RADIO PROPAGATION LABORATORY

BOULDER, COLORADO

Issued 30 Nov. 1964

SOLAR-GEOPHYSICAL DATA

CONTENTS

I DAILY SOLAR INDICES

(a) Relative Sunspot Numbers and 2800 Mc/s Solar Flux - September - October 1964

(b) Graph of Sunspot Cycle

II SOLAR CENTERS OF ACTIVITY

(a) Calcium Plage and Sunspot Regiona - October 1964

(b) Magnetic Calssifications of Sunspots (Mt. Wilson) - October 1964

(c-e) Final Coronal Line Emission Indices - July - August - September 1964

(f) Provisional Coronal Line Emission Indices - October 1964

III SOLAR FLARES

(a-g) Optical Observations - October 1964

(h) Flare Patrol Observations - October 1964

(i-j) Optical Observations - July 1964

(k) Flare Patrol Observations - July 1964

(l) Solar X-ray Average Flux and Outstanding Events (NRL) - January 1964

(m) Ionospheric Effects (SWF-SEA-SCNA-SPA-SES-SFD-Bursts) - September 1964

(n) 26 Mc/s - Riometer Events (South Pole) - September 1964

IV SOLAR RADIO WAVES

(a) 2800 Mc/s Outstanding Occurrences (ARO-Ottawa) - October 1964

(b) 169 Mc/s Interferometric Occurrences (Nangay) - October 1964

(c) 108 Mc/s Outstanding Occurrences (NBS-Boulder) - October 1964

(d-f) 50-320 Mc/s (Fort Davis) - July - August - September 1964

(g) 7.6-41 Mc/s Spectral Observations (HAO-Boulder) - October 1964

(h-m) 9.1 cm Spectroheliograms (Stanford) - October 1964

V COSMIC RAY INDICES

(a) Climax Neutron Monitor - September 1964

(b) Deep River Neutron Monitor - September 1964

(c) Dallas - January - September 1964

(d) Churchill - May - September 1964

VI GEOMAGNETIC ACTIVITY INDICES

(a) C, Kp, Ap and Selected Quiet and Disturbed Days - September 1964

(b) Chart of Kp by Solar Rotations - 1964

VII RADIO PROPAGATION QUALITY INDICES

(a) CRPL Quality Figures and Forecasts - North Atlantic and

North Pacific - September 1964

(b) Graphs Comparing Forecasts and Observed Quality - North Atlantic and

North Pacific - September 1964

(c-d) Graphs of Useful Frequency Ranges - North Atlantic - September 1964

VIII ALERT PERIODS AND SPECIAL WORLD INTERVALS

(a) IQSY Alert Periods - October 1964

The descriptive text has been republished this month, November, 1964.

Ia DAILY SOLAR INDICES

Oct. 1964

Zurich Provisional Relative Sunspot

Numbers

RZ

Daily Values Solar Flux at 2800 Me, Ottawa, Canada

Flux S SA

1 16 71.9 72.0 2 11 71.5 71.6

3 0 71.7 71.8 4 0 70.8 70.8

5 0 71.6 71.6

6 14 72.7 72.6

7 20 74.1 74.0 8 16 77.0 76.8

9 11 73.1 72.9 10 0 72.9 72.7

11 0 71.8 71.5 12 0 70.0 69.7

13 0 72.3 71.9 14 0 70.6 70.3

15 0 70.6 70.2

16 0 71.0 70.5

IT 0 70.9 70.4 18 12 72.4 71.8

19 11 72.8 72.2 20 10 72.6 71.9

21 0 70.9 70.3 22 0 72.5 71.8 23 0 73.0 72.3 24 7 73.8 73.0

25 8 76.3 75.4

26 7 76.4 75.4 27 8 75.8 74.9 28 0 74.5 73.5 29 0 74.3 73.2 30 16 74.2 73.2 31 7 75.1 74.0

Mean: 5.6 72.9 72.4

Sep. 1964

American Relative Sunspot Numbers

Ra*

1 6 2 7

3 3 4 0

5 0

6 0

7 1 8 3

9 5 10 9

11 9 12 5

13 9 14 4

15 0

16 0

17 0 18 0

19 0 20 0

21 0 22 0 23 0 24 0 25 0

26 0 27 0 28 0 29 1 30 1

Mean: 2.1

COMMERCE STANDARDS BOULDER

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Ila CALCIUM PLAGE AND SUNSPOT REGIONS

OCTOBER 196T

Oct. 1964

LAT. MCMATH

PLAGE NUMBER

RETURN

OF

REGION

CALCIUM PLAGE DATA SUNSPOT OATA

CMP VALUES HISTORY AGE (ROTA¬

TIONS)

DATE FIRST SEEN(i)

DURA¬ TION (0AY$( ])

CMP VALUES HISTORY AREA INT AREA COUNT

1.7 S05 7506(2) New 100 1 b _ d i Sept .30 1

2 . 1 N32 7510 (2) New 200 1 b - d i Oc t. 2 1 3.8 N25 7512 (3) New 300 2 b / £ i Oct. 4 >4 (180) (3) b - £

4.3 S22 7507 New (100) (1.5) b - d i Sept .30 2 4.7 N38 7500 (4) New 700 3 £ V £ i Sept .27 14

4.8 N27 7511(2) New 300 1.5 b _ d i Oct. 2 1

6.0 S12 7514 New 400 2.5 b - d l Oc t. 7 4 (20) (4) b - d

6.0 N41 7503 7470 900 2.5 £ -J £ 2 Sept .29 13 6.8 N08 7513 (2) New (200) (1) b ~ d 1 Oct. 4 1 7.4 S10 7509 New 600 2 £ \ £ 1 Oct. 1 211

9.8 S61 7520(2) New (100) (2) b - d 1 Oct. 13 1 10.7 N02 7516 (2) New 100 1 b ~ d 1 Oct. 10 1 11.6 N02 7526 New (200) (2.5) b £ 1 Oct. 17 1 12.6 N28 7515 (2) New (200) (1) b — d 1 Oct. 7 1 12.8 Nil 7527 (2) New (200) (1.5) b - d 1 Oct. 17 1

13.6 N42 7522 (2) New (100) (1) b — d 1 Oct. 16 1 14.5 S10 7517(2) New (200) (2) b ” d 1 Oct. 10 1 14.9 S26 7523 (2) New (100) (1) b - d 1 Oct. 16 1 15.0 N52 7518 (2) New (200) (1.5) £ d 1 Oct. 10 1 16.3 NO 9 7528(2) New 100 1.5 b — d 1 Oct. 17 1

16.9 N2 9 7519 New (100) (2) £ \ d 1 Oct. 11 4 122 4 b — d

18.0 S35 7524(2) New 100 1 b d 1 Oc t o 16 1 18.3 N29 7531 New 400 3 b — £ 1 Oct. 18 7 18.4 N36 7529 New 200 1.5 b — d 1 Oct. 17 3 18.7 N08 7521(5) New 1000 2.5 £ - £ 1 sOct. 13 12

19.8 N22 7525 New (400) (1) b — d 1 Oct. 16 2 21.0 N17 7534(2) New (100) (1.5) b — d 1 Oc t. 23 1 21.9 S09 7536 New (300) (2) b - d 1 Oct. 24 2 22.6 N06 7542 (2) New (100) (1.5) b - d 1 Oct. 26 1 22.8 N03 7530(2) New (200) (2) £ — d 1 Oct. 17 1

22.S N56 7532 (2) New (100) (1.5) b — d 1 Oc t. 18 1 23.7 N08 7544 New (300) (1) b \ £ 1 Oct. 27 2 24.3 S07 7547(2) New (100) (1) b - d 1 Oct. 28 1 24.7 S10 7539 (2) New 200 1.5 b — d 1 Oct. 25 1 25.3 N23 7540 (2) New 100 2 b — d 1 Oc t. 25 1

25.3 N28 7535 (2) New 300 1 b - d 1 Oct. 23 1 25.3 N13 7541(2) New 100 1 b - d 1 Oc t. 25 1 26.1 N15 7551 New (200) (2) b — £ 1 Oct. 30 2 26.4 S07 7533 7508 1300 2.5 £ — £ 2 :Oct. 21 >11 10 4 b — d

26.6 N02 7543 (2) New 100 1 b - d 1 Oct. 26 1

27.7 S17 7545 (2) New 300 1.5 b - d 1 Oct. 27 1 27.8 N21 7546 New 200 1 b "A d 1 Oct. 27 4 27.8 S24 7555 New (200) (1.5) b d 1 Oct. 31 2 28.9 SOI 7537 (2) New (200) (1) b - d 1 Oct. 24 1 29.4 N21 7552 New 300 2 b — £ 1 Oct. 30 5

30.1 S12 7548 New 300 2 b “\ d 1 Oct. 28 4 10 2 b - d 30.7 S28 7556(2) New 100 1.5 b — d 1 Oct. 31 1

31.0 N26 7538 7512 2400 3 £ A £ 1 Oct. 24 14 10 1 b - d 31.0 N33 7560 New (200) (3) b - d 1 Nov. 3 2 31.9 S20 7549(2) New (100) (1.5) b — d 1 Oct. 28 1

COAMFRCX • 8TAM0AR0S - 80ULOER

(1) No calcium plage observations were secured at the McMath-Hulbert Observatory on

October 8, 9, 12, 15, 20, 1964.

(2) These very small and ephemeral plages last for only one day.

(3) Plage 7512 is new, in the same position as ephemeral plage 7468.

(4) Plage 7500 is near the position of plage 7470 of the previous rotation.

(5) Plage 7521 is new, in the same position as ephemeral plage 7407.

MT. WILSON MAGNETIC CLASSIFICATIONS OF SUNSPOTS 11 b

OCTOBER 196T

* New Cycle.

Erratum: In CRPL-F 240 B for August 1964, the Mt. Wilson sunspot data published on page

lib, the longitude of the spot group for July 1 measured at 1450 U.T. should have

been E37 instead of W37.

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HOUR-UT

0 I 2 3 4 5 6 7 8 9 10 I I 12 13 14 15 16 17 18 19 20 21 22 23 24

Observatories Include:

Arcetri Catania Ikomasan Lockheed Ondrejov Sydney

Arosa Haleakala Istanbul Manila Ottawa Wroclaw

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Illm IONOSPHERIC EFFECTS OF SOLAR FLARES

SHORT WAVE RADIO FADEOUTS

SUDDEN COSMIC NOISE ABSORPTION

SUDDEN PHASE ANOMALIES

SUDDEN ENHANCEMENTS OF SIGNAL

SUDDEN ENHANCEMENTS OF ATMOSPHERICS SUDDEN FREQUENCY DEVIATIONS

SOLAR NOISE BURSTS AT 18 Mc/S

SEPTEMBER I'll.I

SEPT UNIVERSAL TIME

1964 START END MAX

WIOE SPREAD STATIONS

BUR INDEX

TTPE SWF IMP

IMPORTANCE

ABS SCNA SEA SPA SES SFD

KNOWN FLARE

None observed.

RIOMETER EVENTS 11 In

( Provisional)

SEPTEMBER 1964

South Pole 26 Mc/s

SEPT 1964

START

UT

END

UT

MAX.

UT

MAX. ABSORP

db,

(tenths)

NO.

OF

PEAKS

SEPT. 1964

START

UT

END

UT

MAX

UT

MAX. ABSORP

db, (tenths)

NO.

OF

PEAKS

1 1038 2014 1436 9 1 18 0304 0413 0308 3 3 2 0010 0314 0104 43 2 19 1347 1803 1531 10 1 2 1319 1705 1432 11 2 20 2152 2200 2152 6 1 3 0029 0537 0242 32 1 21 k

3 1127 2048 1909 7 7 22 0309 0411 0312 9 1

4 0923 2202 1212 20 1 23 0143 0253 0158 17 1 5 0326 0532 0345 11 1 23 0802 0451 0400 19 2 5 1017 1748 1405 8 4 24 0852 2033 1550 17 3 6 0251 1810 1606 5 4 25 0132 0238 0154 8 1 6 2040 2054 2046 3 3 25 2305 0201 0126 28 1

7 0057 0204 0152 5 2 27 * 7 1002 1805 1248 18 2 28 0000 0320 0257 11 1 7 2038 0209*** 2243 79 3 28 0751 1910 0949 13 3

10 1354 1221 0018 30 3 29 0000 0025 0006 3 1 12 0141 0212 0149 13 2 29 1246 1843 1501 13 1

13 * 30 0452 kk 0045 22 4 14 *

15 * 16 1238 1824 9 1 17 1146 1829 1323 11 1

COMMERCE - STANDARDS - BOULDER

* = No event. ** = Uncertain.

*** = Ending, September 9, 1964 at 0209 U.T.

IVa SOLAR RADIO EMISSION

OUTSTANDING OCCURRENCES

OCTOBER 1964

ARO-DRAO (OTTAWA) 2800; 2700 MC/s

OCT. U R A N E

DESCRIPTIVE START DURATION MEAN MAXIMUM

REMARKS 1964 TYPE UT HRS. MIN. FLU X

TIME FLUX

None observed.

COMMERCE • STANDARDS ■ BOULDER

SO

LA

R

RA

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IN

TE

RF

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OM

ET

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OB

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S

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OC

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BE

R 1

964

IVc SOLAR RADIO EMISSION

OUTSTANDING OCCURRENCES

OCTOBER 1964

NBS BOULDER 108 Me/s

None observed

NOMINAL TIMES OF OBSERVATION

OCTOBER 1964

NBS BOULDER 108 Mc/s

Oct. 1964

HOURS OF OBSERVATION

U.T.

HOURS OF INTERFERENCE

U.T.

Oct. 1964

HOURS OF OBSERVATION

U.T.

HOURS OF INTERFERENCE

U.T.

1 1301-0028 16 1316-0005 2 1302-0026 17 1317-0003 3 1303-0025 18 1318-0002 1526-1558; 4 1304-0023 1858-1945 1855-1925 5 1305-0021 19 1319-0000 6 1306-0020 20 1320-2359 7 1307-0018 21 1322-2357 8 1945-0017 22 1323-1852; 9 1309-2234; 1915-2356

2325-0015 23 1324-2355 10 1310-2250 1705-2250 24 1325-2353 11 1311-0012 1719-1725 25 1326-2352 12 1312-1612; 26 1327-2351

1632-0011 27 1328-2349 13 1313-1645; 28 1329-2348

1801-2218; 29 1330-2347 2227-0009 30 1331-2345 1938-1942;

14 1314-1546; 2216-2345 1556-2052; 31 1333-2344 2102-0008

15 1315-0006

COMMERCE - STANOAROS BOULDER

SOLAR RADIO EMISSION

SPECTRAL OBSERVATIONS

IVd

JULY 1964

Fort Davis 50-320 Mc/s

196 4 OBSERVING HOURS

Jill. 1 1231-2230

Jill. 2 1231-2230

Ju 1. 3 1231-2230

Jul. 4 1231-2230

Jul. 5 1231-2230

Jul. 6 1231-2230

Jul. 7 1231-2230

Jul. 8 1231-2230

Jul. 9 1231-2230

Jul. 10 1231-2230

Jul. 11 1231-2230

Jul. 12 1231-2230

Jul. 13 1231-2230

Jul. 14 1231-2230

Jul. 15 1232-2230

Jul. 16 1231-2230

Jul. 17 1231-2230

Jul. 18 1231-2230

Jul. 19 1231-2230

Jul. 20 1231-2230

Jul. 21 1232-2230

Jul. 22 1231-2230

Jul. 23 1231-2230

Jul. 24 1231-2230

Jul. 25 1231-2230

Jul. 26 1231-2230

Jul 27 1231-2230

Jul 28 1231-2230

Jul 29 1231-2230

Jul 30 1231-2230

Jul 31 1230-2230

IMPORTANT BURSTS FREQUENCY

RANGE

IVe SOLAR RADIO EMISSION

SPECTRAL OBSERVATIONS

AUGUST 196+

Fort Davis 50-320 Mc/s

196 4 OBSERVING HOURS IMPORTANT BURSTS

REMARKS

TYPE TIMES INT RANGE

* “ U.T MG

Aug. 1 1302-2300

Aug. 2 1302-2300 1929: U bursts

Aug. 3 1302-2300

Aug. 4 1303-2300

Aug. 5 1302-2300

Aug. 6 1303-2300

Aug. 7 1302-2300

Aug. 8 1302-2300

Aug. 9 1303-2300

Aug. 10 1303-2300

Aug. 11 1302-2300

Aug. 12 1303-2300

Aug. 13 1302-2300

Aug. 14 1303-2300 Weak I throughout day

Aug. 15 1302-2300 Weak I throughout day

Aug. 16 1303-2300 Weak I during day

Aug. 17 1305-2300

Aug. 18 1303-2300

Aug. 19 1303-2300

Aug. 20 1302-2300

Aug. 21 1302-2300

Aug. 22 1302-2300

Aug. 23 1303-2300

Aug. 24 1303-2300

Aug. 25 1304-2034; 2107-2300

Aug. 26 1303-2300

Aug. 2 7 1303-2300

Aug. 28 1303-2300

Aug. 29 1303-2300

Aug. 30 1303-2300

Aug. 31 1305-2300

- S5 ■

SOLAR RADIO EMISSION SPECTRAL OBSERVATIONS

IVf

SEPTEMBER 1964

Fort Davis 50-320 Me/s

196 4 OBSERVING HOURS IMPORTANT BURSTS

FREQUENCY

RANGE MG

REMARKS

TYPE TIMES U.T

INT

Sep. 1 1330-2330

Sep. 2 1330-2330

Sep. 3 1330-2330

Sep. 4 1330-2330

Sep. 5 1330-2330

Sep. 6 1330-2300

Sep. 7 1330-2330

Sep. 8 1330-2330

Sep. 9 1330-2330

Sep. 10 1330-2330

Sep. 11 1330-2330

Sep. 12 1330-2330

Sep. 13 1330-2330

Sep. 14 1330-2330

Sep. 15 1330-2330

Sep. 16 1330-2330

Sep. 17 1330-2330

Sep. 18 1330-2330

Sep. 19 1330-2330 IIIG 2219-2220 2 175-<100

Sep. 20 1330-2330

Sep. 21 1330-2330

Sep. 22 1330-2330

Sep. 23 1330-2330

Sep. 24 1330-2330

Sep. 25 1330-2330

Sep. 26 1330-2330

Sep. 27 1332-2330

Sep 28 1330-2330

Sep 29 1330-2330

Sep. 30 1331-2330

KULOO

SOLAR RADIO EMISSION SPECTRAL OBSERVATIONS

OCTOBER 1964

High Altitude Observatory

Boulder 7.6-41 Me/s

Date Oct 1964

Bursts

Frequency Range (Mc/s)

Type Time (U.T.) Inten¬ sity

5 Oct III 1834:45-1835:30 1 7-35 III 2053-2053:30 2 22-41

6 III 2153:30-2154 1 12-41 III 2333:30-2334 1 19-41

7 III 2148-2148:30 1- 21-41

8 III 1543:45-1544:30 2 21-41 11 III 1539:30-1540 1- 26-41 13 III 1729:45-1730:15 1- 20-41 20 No Observ. 1400-1813 21 No Observ. 1400-1655

22 No Observ* 2229-2400 23 No Observ. 0000-0100 24 No Observ. 1400-1600 25 No Observ. 1400-1600 26 No Observ. 1400-1500

27 No Observ. 0000-0100 No Observ. 1400-1500

28 No Observ. 1400-1500 29 No Observ. 1400-1500 30 No Observ. 1400-1500

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IVm s U

Va COSMIC RAY INDICES

(Climax Neutron Monitor)

ICC Station B 305

SEPTEMBER 1964

Sept. 1964

DAILY

AVERAGE

COUNTS / HOUR*

Sept. 1964

DAILY

AVERAGE

COUNTS / HOUR*

1 3306.4 **24 16 3306.9 **36 2 3314.4 17 3295.9 **36 3 3308.2 18 3301.1 4 3312.3 19 3311.5 5 3326.0 20 3309.6 6 3326.0 21 3302.5 7 3303.0 22 3296.5 8 3296.6 23 3298.0 9 3281.7 24 3301.2

10 3283.3 25 3312.1 11 3286.6 26 3321.4 12 3299.9 27 3307.3 13 3302.9 28 3322.2 14 3314.1 29 3314.5 15 3322.5 **34 30 3311.4


* Scaling Factor 128.

** No. of Section Hours Less Than 40 Hours

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Vc COSMIC RAY INDICES

DALLAS SUPER NEUTRON MONITOR

DAILY AVERAGE COUNTS PER HOUR *

JANUARY - SEPTEMBER 1964

Jan. Feb. Mar. Apr. May June July Aug. Sept.

1 6408.5 6423.4 6481.3 6463.5 6473.1 6504.7 6496.2 6498.0-8 2 6419.7 6439.7 6470.6 6453.8 6482.3 6508.2 6487.0 6502.0 3 6420.5 6453.1 6469.5 6468.0 6477.3 6507.1 6509.1 6510.7 4 6425.0 6484.3 6474.8 6476.5 6486.0 6526.8 6508.5 6527.1 5 6430.8 6458.4 6467.3 6457.0 6495.9 6519.3 6498.1-22 6539.7

6 6437.5 6435.9 6458.9 6434.6 6493.4 6517.3 6500.4 6534.2 7 6451.5 6429.4 6468.7 6436.9 6491.6 6517.5 6490.2 6502.4 8 6449.5 6410.3 6464.0 6429.0 6476.3 6517.8 6481.8 6486.0 9 6457.7 6442.1 6478.0 6451.8 6442.7 6505.8 6484.9 6485.3

10 6475.3 6463.5 6481.9 6424.7 6434.2 6511.3 6502.1 6482.9

11 6478.6 6455.5-18 6462.4 6453.1 6445.2 6521.6 6493.7 6489.0 12 6447.4 6461.0 6447.9 6439.4 6442.6 6521.2 6475.7 6513.3 13 6441.7 6440.8 6473.8 6469.9 6441.4 6533.1 6462.8 6540.5 14 6417.3 6438.8 6462.5 6466 .6 6458.2 6538.4 6451.3 6542.8 15 6386.1 6461.5 6472.8 6461.1 6449.5 6539.7 6453.4 6544.1

16 6363.8 6453.3 6466.0 6459.6 - 6531.3 6433.1 6498.0 17 6380.8 6429.8 6445.0 6449.7 - 6519.8 6445.8 6474.3 18 6402.5 6438.6 6446.3 6461.3 - 6505.7 6446.2 6485.7-21 19 6437.0- 23 6429.2-22 6442.7 6457.3 6475.0 6489.3 6476.4 6491.2 20 6440.3 6420.0 6442.9 6478.1 6507.3 6503.7 6495.0 6468.2

21 6439.5- 21 6432.2 6431.5 6472 .0 6498.9 6520.1 6490.2 6453.7-19 22 6456.5 6431.5 6429.6-23 6467.8 6472.8 6521.3 6505.6 6447.5 23 6458.9 6440.7-23 6434.5 6480.0 6475.8 6530.1 6496.0 6476.0-23 24 6470.0 6461.5-21 6429.4 6486.7 6500.5 6535.6 6496.0 6489.8 25 6451.4 6448.3 6419.8 6428.5 6475.8 6514.9 6512.0 6482.4 6497.3

26 6453.7 6443.8 6447.8 6446.4 6485.0-22 6521.7 6519.8 6497.9-18 6484.3 27 6465.8 6461.2 6456.6 6479.6 6477.9-22 6531.0 6515.1 6492.3-22 6473.5 28 6475.2 6476.9 6451.5 6464.8 6480.0 6524.8 6517.6 6477.7 6502.6 29 6440.5 6439.1 6463.0 6471.8 6474.7 6517.9 6508.7 6488.6 6487.8 30 6406.2 6484.2 6473.3 6469.1 6494.9 6488.2-22 6499.2 6521.9

31 6396.1 6471.2 6470.6 6480.3-23 6508.7-23

COMMERCE • STANDARDS - BOULDER

* Scaling factor 120 - (Number) Number of hours for which data are available if less than 24.

COSMIC RAY INDICES Vd

CHURCHILL SUPER NEUTRON MONITOR

DAILY AVERAGE COUNTS PER HOUR *

MAY-SEPTEMBER 1964

May June July Aug. Sept.

i 6357.1 6427.1 6458.9 6438.1 6467.5 2 6356.0 6436.3 6473.4 6421.9 6468.5

3 6372.1 6434.1 6447.0 6471.1 6475.6

4 6401.0 6445.0 6447.7 6408.5 6496.2 5 6398.3 6455.0 6448.3 6413.5 6507.4

6 6401.0 6473.3 6454.7 6433.1 6507.8

7 6408.8 6473.3 6439.8 6405.2-23 6444.9 8 6431.8 6445.1 6387.7 6421.3 6435.7

9 6455.5 6414.9 6386.9 6446.2 6429.3 10 6440.5 6372.7 6407.0 6460.3-21 6442.3

11 6376.1 6391.4 6400.6 6425.0-23 6460.4 12 6393.0 6380.1 6413.8 6418.0 6472.7

13 6393.5 6413.5 6417.6 6423.2-22 6490.2 14 6388.1 6432.7 6417.7 6415.5 6475.9 15 6406.8 6415.4 6433.0 6422.0 6472.6

16 6386.8 6410.0 6447.9 6423.9 6475.4 17 6373.8 6437.3 6445.7 6427.7 6456.6 18 6396.5 6448.2 6391.5 6432.3 6444.8 19 6392.7 6426.1 6383.0 6438.1 6480.8 20 6412.5 6444.9 6402.5 6457.5 6495.4

21 6416.1 6406.8 6416.6 6476.6 6485.3 22 6435.5 6392.5 6404.9 6474.2 6436.3 23 6444.8 6425.9 6415.5 6493 o0 6470.8

24 6419.6 6429.3 6457.3-21 6510.6 6483.3 25 6420.0 6447.2 6439.2 6499.0 6495.7

26 6409.5 6447.9 6455.7 6492.3 6502.1

27 6408.7 6429.8 6454.8 6503.5 6518.1 28 6408.0 6428.0 6474.8 6487.0 6507.8 29 6404.7 6440.7 6474.2 6482.1 6506.8 30 6421.0 6454.9 6436.3 6480.8 6505.3

31 6409.5 6434.3 6482.6


* Scaling factor 120. - (Number) Number of hours for which data

are available if less than 24.

Via GEOMAGNETIC ACTIVITY INDICES

SEPTEMBER 1964

Sept. 1964

C Values Kp

Sura Ap Final

Selected Days

Three hour Gr. interval 1 2 3 4 5678

1 1.0 5- 4+ 4o 1+ 3- 3+ 2o 4- 26o 20 Five 2 0.6 4- 2+ 2+ 3- 1+ 1+ 2+ 2o 18o 10 Quiet

3 0.6 3o 2+ 2- 1+ 2- 2+ 3o 2- 17o 9 4 0.6 lo 2o 2o 3o 2o lo 3- 3o 17- 9 13

5 0.3 2o 3+ 1+ 2- 1+ 0+ Of 1- llo 6 14 15

6 0.8 lo lo 1+ 2- 3- lo 3o 5o 17- 12 19 7 1.4 3o 2+ 3+ 5- 4+ 4o 5o 5- 31+ 28 20 8 1.2 4o 4- 4+ 4o 3- 4o 4- 3o 29+ 23

9 0.9 3o 4o 2+ 3+ 3o 3- 3o 3+ 25- 16 10 0.6 4o 3o 1- 1- lo 2- 2o 3- 16- 10

11 0.1 2+ 2+ 1+ 0+ 0+ 0+ Of lo 8+ 4 Five 12 0.1 2o lo 1- 0+ lo Oo Oo Oo 5o 2 Disturbed

13 0.1 lo Oo 0+ 1- Oo Of lo 1- 4o 2 14 0.1 1- Oo 0+ 0+ 0+ Of 0+ lo 3+ 2 7 15 0.0 0+ 0+ 1- 0+ Oo 1- 1- 2- 5- 3 8

22 16 0.9 lo 2+ 1+ 2o 4- 3+ 4- 3+ 21- 13 28 17 0.5 3+ 3- 2o 2- 3o 1+ 2- 2- 17+ 9 30 18 0.2 2- 2- lo 1+ 1+ lo lo 2- 11- 5 19 0.0 0+ 1- 1- 0+ lo 0+ Of 1- 4+ 3 20 0.1 Oo Oo Oo CH- 0+ 0+ 1- 1+ 3o 2

21 0.3 0+ 1- 1+ 2- 1- lo 1+ 2+ 9+ 5 Ten 22 1.4 7- 8- 3+ 2+ 2+ 2o 2+ 2+ 29o 44 Quiet 23 0.4 2o 2o 4- 3- 1- Of 1+ 2o 15- 8 24 0.8 lo 2+ 2o 3o 2- 2o 3+ 1+ 17- 9 11 25 0.1 2+ 3- lo 1- Oo Of Of 2- 9o 5 12

13 26 0.1 2- 0+ 2o 1+ 1- Oo 0+ 1- lo 4 14 27 0.4 0+ 0+ 1+ 0+ 0+ lo 1+ 4o 9o 6 15 28 1.4 5- 4o 5- 4o 4o 6- 5- 3o 35- 35 18 29 0.4 2- 2+ 2+ 1+ 1+ Of 1- 3o 13 0 7 19 30 1.0 3- 5- 4o 3o 4- 4o 3- 3+ 28o 22 20

21 26

Mean: 0.55 Mean: 11


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in g in in m in 4 m 4 4 in g in g in g g g iri g g g g -j g g g ^ g -r

g g g g g g g g ^ 4 g g g g g g g g ^ g in in m m in in g in 4 g

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m h nj N 0 m 4 m r\j eg 0 «-« *-h 0 «-i g n n h h rv ev --i rv h h n ^ n ft

FT FT M FT FT N FT ^ g H N H H Oh N N H O O rH f\J f\J <N <\l r-l 4 Py) CP

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g g g g g g in in in in g g g g g g g g g g g g g g g g g g g g

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2 gf

+ + 1 + + lllll +I+OI OllOl 1 + O + 1 l+oll g g n g g p- r- p~- p- g p- g p- r- p- p- p- p- p- g g p- r^ggr-p-

l + lll l + 1 + + l + + l l lllll I + 1 I 1 I 1 + l + r~- g p- r- p- p~ g p- g g p- g g p- p- p- p- p- p- p- p- g p- p- p- p-r^gp-g

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1 + + + 1 0 + 01+ 00+10 +10+1 ++III I+ + + + g in g g g g g 4 in 4 ggingg in g m in g g 4 g g in n in m 4 »n

Score

: Q

uie

t P

eri

ods

P

S U

F

Dis

turb

ed

Periods:

P

S U

F

SEPT

. 1964

hitjfi 4g g p ® <po h (Tc«4g g p- » o* 0 h n g 4 g <o haepo OOOOO OOOO-H r-i f• t-0 •—( «—0 H rtHHN <Pi fM f<M P* «\J W W N JV FT

QU

AL

ITY

QU

AL

ITY

QU

AL

ITY

CRPL RADIO PROPAGATION QUALITY FIGURES AND FORECASTS VII b

NORTH ATLANTIC

SEPTEMBER 1964

OUTCOME OF ADVANCE FORECASTS—FINAL ESTIMATES (I TO 7 DAYS AHEAD)

NORTH ATLANTIC

QUIET

0 IQ 20 30

NORTH PACIFIC DISTURBED,

KX ^- QUIET ->1

ACTUAL

COMPARISON (SEE TEXT)

0 10 20 30

COMMERCE STANDARDS BOULOER

Vile USEFUL FREQUENCY RANGES ~ NORTH ATLANTIC PATH

SEPTEMBER 1961

tflJT 3 6 9 12 15 18 21 24


USEFUL FREQUENCY RANGES ~ NORTH ATLANTIC PATH Vlld

SEPTEMBER 1964

hUT 3 6 9 12 15 19 21 24 C/uT 3 6 9 12 15 18 21 24

Adapted from Observations by Deutsches Bundcspost

Villa IQSY ALERT PERIODS

INTERNATIONAL URSIGRAM AND WORLD DAYS SERVICE

OCTOBER 1964

OCT. TIME WORLDWIDE GEOPHYSICAL ALERT

1964 OF ISSUE

UT

ADVANCE GEOPHYSICAL ALERT

NO. TYPE TIMING ELABORATION

1 0400 116 Stratospheric

Warming

Ends Advance stage of 10 MB stratospheric

warming reached

4 0400 117 Magnetic Storm Expected

5 0400 118 Magnetic Storm Expected

7

7

0400

1715 Climax, Solar Flare 07/1500Z

119 Solar Activity

Stratospheric

Warming

Exists

Exists Reestablished over Mirny Davis region

8 0400 120 Solar Activity

Stratospheric

Warming

Exists

Exists From Davis-Mirny to McMurdo-Pole area

9 0400 121 Solar Activity

Stratospheric

Warming

Exists

Exists Over McMurdo-Vostok-Pole region


Warming

Exists Over eastern Antarctica moving Byrd


Warming

Exists Near Durville region


Warming

Exists Near Durville-McMurdo region


Warming

Exists Durville-McMurdo-Pole region


Warming

Exists Mirny-Pole-Byrd region


Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Exists Antarctica 20 millibar temperature

minus eight degrees centigrade Pole-

Vostok region

24 0400 135 Stratospheric Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Exists Antarctica


Warming

Ends Antarctica

Stratospheric Warm entire continent

Documents

dec 11 1964 taken from the library. · OVXXXVO CvJ-4