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ARGUS WORKSHOP: Manly, February 2006
THE COASTAL STATION OF BARCELONA BUILT AROUND
ARGUS OBSERVATIONS
Jorge GuillenInstitute of Marine Sciences-CSICBarcelona, Spain
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STUDY AREA
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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
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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 …)
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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
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http://elb.cmima.csic.es
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GRAPHICAL USER INTERFACE
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RESULTS
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SHORELINE VARIABILITYBogatell
S
N
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BAR EVOLUTION
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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)
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“OTHER” ARGUS APPLICATIONS
EXAMPLE 1: HOW MANY PEOPLE IS THERE?
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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
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23.000 m2 27.000 m2
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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)
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“LOW”
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“MEDIUM”
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“HIGH”-SATURATION
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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
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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
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17-Jun-04 15-Jul-04
0
500
1000
1500
2000
2500
USE
RS
NO
VA IC
AR
IAJUNE-JULY DISTRIBUTION
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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
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USERS CHANGED THE BEACHBECAUSE THE EROSION
2001
2005
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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
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BEACH USERS AND BEACH AREA
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TOTAL BEACH USERS
NOVA ICARIA SOMORROSTRO2002 390.000 175.0002003 428.000 230.0002004 407.000 390.000
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EXAMPLE 2: MONITORING WATER QUALITY/RUN-OFF PLUMES
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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
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8 October
9 October
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10 October
11 October
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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
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REAL-TIME VIDEO
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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
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To be continue…
ARGUS WORKSHOP: Manly, February 2006STUDY AREAGENERAL GOALSPRESENT-DAY ACTIVITIESRESULTS “OTHER” ARGUS APPLICATIONS��� �EXAMPLE 1: HOW MANY PEOPLE IS THERE?