ARGUS WORKSHOP: Manly, February 2006

THE COASTAL STATION OF BARCELONA BUILT AROUND

ARGUS OBSERVATIONS

Jorge GuillenInstitute of Marine Sciences-CSICBarcelona, Spain

STUDY AREA

GENERAL CHARACTERISTICS OF ARGUS BARCELONA

• Tower Mapfre: about 142 m high• Five cameras oriented N, NE, E, SE and S• Radius observation: 2 km• Resolution: better than 20 m• Timing of observations: every hour• Images since 21-October-2001

GENERAL GOALS

• research on beach-bar morphodynamicsand environmental control using “long-term” information

• to be an attractive lab for students• information useful for society (coastal

management, beach users …)

PRESENT-DAY ACTIVITIES

• ARGUS station updating every hour• AWAC sensor (real time information of

waves, current, water temperature andturbidity). Seabed erosion/accretion(altimeter)

• Monthly surveys of hidrography, nutrients, bottom sediment grain size

• Bathymetric and topographic surveys

http://elb.cmima.csic.es

GRAPHICAL USER INTERFACE

RESULTS

SHORELINE VARIABILITYBogatell

S

N

BAR EVOLUTION

0

0,5

1

1,5

2

2,5

3

3,5

0 100 200 300 400 500 600 700 800

Alti

tude

(m)

03/02/200523/02/200509/03/2005

NordSud

433300 433350 433400 433450 433500 433550

4582450

4582500

4582550

4582600

4582650

4582700

-1.8-1.6-1.4-1.2-1-0.8-0.6-0.4-0.200.20.40.60.81 Accrétion

Érosion

Différence d'altitude

(m)

- 1623 m3

- 202 m3

+ 219 m3

TOPOGRAPHIC SURVEYS

Alongshore distance (m)

“OTHER” ARGUS APPLICATIONS

EXAMPLE 1: HOW MANY PEOPLE IS THERE?

WHO IS THERE?

- WOMAN (55%)- AGE: 25-34 (35%); 18-24 (18%)- LIVING AROUND BARCELONA (91%)- THE MOST POSITIVE: CLOSENESS (55%)- THE MOST NEGATIVE: NON CLEAN ENOUGH (32%)- WHY ARE THEY COMING: RELAX/SUN BATHING (47%)- HOW LONG IN THE BEACH: 2h 45’

-SOURCE: Ayuntamiento de Barcelona, 2004

23.000 m2 27.000 m2

Observations - 10/09/04

HOUR GMT C1+C2 C5

06h 10 19

07h 34 29

08h 85 75

09h 214 249

10h 297 ---

11h 383 383

12h 386 343

camera c1-c2 Y = 2.94 * X - 351.6 (R2 = 0.95)camera c5 Y = 4.67 * X - 173.0 (R2 = 0.88)

“LOW”

“MEDIUM”

“HIGH”-SATURATION

Daily DISTRIBUTION

7 8 9 10 11 12 13 14 15 16 17 18 19

400

800

1200

1600

2000

US

ER

S N

OV

A IV

AR

IA

AUGUST'04

HOURS

WEEKLY DISTRIBUTION

0

4000

8000

12000

16000

20000

US

ER

S N

OV

A IV

AR

IA

JUNE'04

M T W TH F S SU

17-Jun-04 15-Jul-04

0

500

1000

1500

2000

2500

USE

RS

NO

VA IC

AR

IAJUNE-JULY DISTRIBUTION

4/29/02 10/26/02 4/24/03 10/21/03 4/18/04 10/15/04

0

4000

8000

12000

16000

20000NOVA ICARIASOMORROSTRO

“LONG-TERM” DISTRIBUTION

USERS CHANGED THE BEACHBECAUSE THE EROSION

2001

2005

10/31/01 1/29/02 4/29/02 7/28/02 10/26/02 1/24/03 4/24/03 7/23/03 10/21/03 1/19/04 4/18/04 7/17/04 10/15/04

0

4000

8000

12000

16000

20000

0

10

20

30

40

TEM

PER

ATU

RA

BEACH USERS AND AIR TEMPERATURE

BEACH USERS AND BEACH AREA

TOTAL BEACH USERS

NOVA ICARIA SOMORROSTRO2002 390.000 175.0002003 428.000 230.0002004 407.000 390.000

EXAMPLE 2: MONITORING WATER QUALITY/RUN-OFF PLUMES

0

1

2

3

4

5

6

7

8

36 36,5 37 37,5 38Salinity

0

1

2

3

4

5

6

7

8

0 1 2 3 4 5 6 7

Beam atenuation coeficient

VERTICAL PROFILES OF SALINITY AND TURBIDITY

Data from a station taken close to the coast on the 27 of May

8 October

9 October

10 October

11 October

Freshwater plume, Green band

110

130

150

170

190

0 500 1000 1500 2000 2500 3000Distance ofshore

Pix

el in

tens

ity

08-oct09-oct10-oct11-oct12-oct

REAL-TIME VIDEO

SUMMARY

• Barcelona is an example of urban, artificial beach. It is complementary with other Argus stations.

• It provides data for research, environmental control and coastal management

To be continue…

ARGUS WORKSHOP: Manly, February 2006STUDY AREAGENERAL GOALSPRESENT-DAY ACTIVITIESRESULTS “OTHER” ARGUS APPLICATIONS��� �EXAMPLE 1: HOW MANY PEOPLE IS THERE?