Welcome to the CCAR Gulf of Mexico Near Real-Time Altimeter Data Viewer. This page allows you to view maps of the sea surface height or height anomaly for any region in the Gulf of Mexico (262°E to 280°E longitude and 18°N to 31°N latitude). The maps are produced from TOPEX and ERS-2 altimeter data processed in near real-time, usually within 18 hours of overflight (18:00 GMT). This quick-look processing is designed to retain the mesoscale sea surface height anomalies associated with fronts and eddies. An analysis product is produced every weekday, based on the latest 10 days of TOPEX and 17 days of ERS-2 sampling, if available.
No data can be accessed prior to April 26th, 1996. Data files are generally available 18 hours after overflight (18:00 GMT).
EAST LONGITUDE (in degrees)
minimum maximum LATITUDE (in degrees)
minimum maximum
Note: Integer values only
Minimum (in centimeters): Maximum (in centimeters):
Color Grayscale None
Add model mean Do not add model mean
Interval between contours and tick marks on color bar:
Other contouring options: Show contours. No contours. Anotate contours. No anotation.
Plot only data in water deeper than (in meters):
Longitudes go from 0 to 360. Latitudes go from -90 to 90. Longitudes go from -180 to 180. Latitudes go from -90 to 90. Longitudes are unsigned 0 to 180. Latitudes are unsigned 0 to 90. Longitudes are unsigned 0 to 180 with letters E or W appended. Latitudes are unsigned 0 to 90 with letters N or S appended.
Portrait Landscape
GIF PostScript
Send mail to the CCAR Real-Time Altimeter Data Research Group.