GEOS-3 ALTIMETER GEOPHYSICAL DATA RECORD 1975-1978

GEOS-3 ALTIMETER GEOPHYSICAL DATA RECORD 1975-1978
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DOI10.5067/GEOS3-AGDRA
Short NameGEOS-3_ALT_GDR
DescriptionThese data consist of Geos-3 altimeter measurements produced by NOAA/NODC/Laboratory for Satellite Altimetry. The dataset contains 5,006,956 altimetric sea surface heights and supporting information such as sea state, wind speed, Schwiderski ocean tide height, and Cartwright solid-tide height. Corrections for altimeter bias, wet and dry troposheric delays, and electromagnetic bias are not included. The corrections in this dataset (tides and even orbit height) are old and not very accurate. This dataset should only be used by those with an expertise in altimetry. Measurements are compressed to a rate of 1 per second using a trim mean filter. Data values are written in binary format.
Version1
Dataset TypeOPEN
MeasurementOceans > Ocean Waves > Significant Wave Height > none
Oceans > Sea Surface Topography > Sea Surface Height > none
Processing Level2
CoverageRegion: Global
Northernmost Latitude: 90 degrees
Southernmost Latitude: -90 degrees
Westernmost Longitude: 0 degrees
Easternmost Longitude: 360 degrees
Time Span: 1975-Apr-14 to 1978-Dec-02
ResolutionSpatial Resolution: 7 km (Along) x 2.6 km (Across)
ProjectionType: Swath
Detail: N/A
Ellipsoid: N/A
Latency hours
Swath Width3 km
Sample Frequency1
Temporal Repeat (Nominal)1 Month
Temporal Repeat (Min)-
Temporal Repeat (Max)-
Platform/Sensor
GEOS-3
Platform
Name: Geodetic Earth Orbiting Satellite-3 (GEOS-3)
Orbit Period: 101.8 minutes
Inclination Angle: 115 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GEOS-3 ALTIMETER
SENSOR
Name: Geodetic and Earth Orbiting Satellite 3 (GEOS-3 ALTIMETER)
Swath Width: 3 km
Description: A satellite altimeter consists of a transmitter that sends out very sharp pulses, a sensitive receiver to record the pulse after it is reflected from the sea surface, and an accurate clock to note the time interval between transmission and reception. Examples of satellite altimeters used in the remote sensing of ocean surface height, wave height and wind speed are Seasat, Geosat and Topex/Poseidon.

ProjectGeodynamics and Earth Ocean Satellite 3 (GEOS-3)
Data ProviderCreator: DOC/NOAA/NESDIS/NODC
Release Place: JPL
Release Date: 1998-Sep-23
Resource: https://podaac-tools.jpl.nasa.gov/drive/files/allData/geos3/L2/docs/geos3_alt.html
Persistent IDPODAAC-GEOS3-AGDRA
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation DOC/NOAA/NESDIS/NODC. 1998. GEOS-3 ALTIMETER GEOPHYSICAL DATA RECORD 1975-1978. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GEOS3-AGDRA.

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For more information see Data Citations and Acknowledgments.

Journal Reference https://podaac-tools.jpl.nasa.gov/drive/files/allData/geos3/L2/docs/geos3_gdr.html