Long-Term Oceanographic Measurements in Brazil : Characteristics and Perspectives
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Long-Term Oceanographic Measurements in Brazil: Characteristics
and Perspectives
2012 ROMS/TOMS User Workshop
Rogério Candella IEAPM
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- PIRATA Program (Pilot Research Moored Array in the Tropical Atlantic)
- About 16 buoys in the equatorial region
- In the southeastern Atlantic portion - Long time series only for sea level- One long time series for sea temperature (not collected for scientific purposes)
Long-Term Oceanographic MeasurementsLong-Term Oceanographic Measurements
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Temperature of water used for cooling machinery of the Companhia Nacional de Álcalis, Arraial do Cabo, RJ
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- Oldest station still in activity – Cananéia/SP since 1954- Longest continuous series – Cananéia/SP from 1954 to 1995- Improvement data quality → Progam GLOSS-Brasil
Sea level measurementsSea level measurements
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- Currently, 17 tide stations, 11 from other institutions than the Brazilian Navy.
Ilha Fiscal-From 1955 to 2007 → analogical gauge-From 2007 to now → radar based technology
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Ilha Fiscal - 2010
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Ponta do Céu – AP
-Amazon River-Radar based gauge
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Tide Gauge – Arraial do Cabo, RJ
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Low Frequency Meteorological Effects – May, 2001
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Digital Gauges
- Ultrasonic
- Radar
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High Frequency Meteorological Effect – Meteotsunami September 2002
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PNBOIA (Oceanographic Buoy National Plan)
- Four (three) fixed buoys operating.- Free access to datahttp://www.mar.mil.br/dhn/chm/meteo/prev/dados/dados.htm
- Two more buoys deployed (northeast coast).- Two more buoys to be launched in the next year.- Program in a very beginning stage.- Problems with depredation and logistics.
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06 tide gauges
59 drifting buoys
08 ATLAS buoys
03 Axys 3M buoys
DBCP Data Buoy Cooperation Panel
ISABP International South Atlantic Buoy Program
GLOSS – Global Sea Level Observing System
Dirfting Buoy
Moored Buoy 3M
Moored Buoy ATLAS
GTMBA - Global Tropical Moored Buoy Array
GOSS– Sistema Global de Observação dos Oceanos
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SIODOCEnvironmental Data Collection for the
Defense Project- Deployment of a
meteo-oceanographic buoy fully equipped.
- 60-m depth, in the upwelling area of Arraial do Cabo.
- Free access to data
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ConclusionsConclusions-Very few long-time oceanographic series in the Western South Atlantic, turning unfeasible comparisons with climatological results from models.-Some new attempts to fill this gap, but still in early stages.-Main problems related to logistics, depredation and maintenance.-Results can be used to indicate anomalous events, which could be explained in other spatial scales, by numerical modeling.