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Sea Surface Temperature and Sea Level From Eastern Pacific
GOES Stations
David B. EnField, NOAA/AOML
Instituto Oceanografico de la Armada Guayaquil, Ecuador
Direccion de Hodrografia y Navigacion de la Marina, Callao, PERU
JULY 2009
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Through
cooperative arrangements with South American institutions, the TOGA
program has maintained a network of nine tide stations and four
meteorological stations in Ecuador, Peru and Chile since the mid
1980's. The stations are maintained by NOAA/AOML and the University of
Hawaii. The hourly data are transmitted to down-link stations via the
GOES satellite in real time and processed. The five-day averages
(pentads) at critical stations give us an effective means of monitoring
coastal conditions with good time resolution and compact data volume.
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As typically occurs, the sharp rise in sea levels at Callao in May-June was followed by a rise in
SST in June-July, as an expanded isothermal layer of warm water gets upwelled. The sea levels are
showing considerable modulation by intraseasonal pulses, compared to the early months of 2009.
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Day of Sea Sfc Temperature Sea Level Height (cm)
Jul Baltra Talara Callao Baltra Libertad Callao
------ ------ ------ ------ ------ ------ ------
2 ** 18.4 18.4 ** ** 116.0
7 ** 18.3 18.5 ** ** 114.7
12 ** 18.3 17.9 ** ** 112.1
17 ** 18.2 17.5 ** ** 112.0
22 ** 18.3 16.8 ** ** 114.2
27 ** 18.0 16.7 ** ** 112.6
Anomalies
2 ** 0.3 2.0 ** ** 5.0
7 ** 0.3 2.2 ** ** 4.0
12 ** 0.5 1.6 ** ** 1.7
17 ** 0.5 1.3 ** ** 1.9
22 ** 0.6 0.7 ** ** 4.6
27 ** 0.3 0.6 ** ** 3.4
For further information contact David.Enfield@noaa.gov
or go to http://www.aoml.noaa.gov/phod/epac/
** - Data missing due to hardware failure
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FIGURE A1.5
Five-day averages of Sea Surface
Temperature (SST, C) and Sea Level Height (SLH, cm) from GOES receiving
stations in Ecuador and Peru. Dashed line and shading show climatology
departures.
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www.nws.noaa.gov
