GEOS-3 ALTIMETER GEOPHYSICAL DATA RECORD 1975-1978

(GEOS-3_ALT_GDR)
Version1
Processing Level2
Start/Stop Date1975-Apr-14 to 1978-Dec-02
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.
DOI10.5067/GEOS3-AGDRA
MeasurementOCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT
OCEANS > OCEAN WAVES > SIGNIFICANT WAVE HEIGHT
Swath Width3 km
Platform/Sensor
GEOS-3
Platform
Name: Geodetic Earth Orbiting Satellite-3 (GEOS-3)
Orbit Period: 101.8 minutes
Inclination Angle: 115.0 degrees
/
GEOS-3 ALTIMETER
SENSOR
Name: Geodetic and Earth Orbiting Satellite 3 (GEOS-3 ALTIMETER)
Swath Width: 3.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectGeodynamics and Earth Ocean Satellite 3 (GEOS-3)
Data ProviderPublisher: DOC/NOAA/NESDIS/NODC
Creator: DOC/NOAA/NESDIS/NODC
Release Place: JPL
Release Date: 1998-Sep-23
Resource: https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/geos3/open/L2/docs/geos3_alt.html

FormatRAW
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution
Temporal Resolution: 1 Month
 
Coverage
Region: GLOBAL
North Bounding Coordinate: 90 degrees
South Bounding Coordinate: -90 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 1975-Apr-14 to 1978-Dec-02
Granule Time Span: 1975-Apr-14 to 1978-Dec-01
Swath Width: 3 km
 
Capabilities
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DIRECT ACCESS
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This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command line interface. The URL redirects to the data-subscriber home page with instructions for utilizing the tool
DIRECT S3-ACCESS
Available for access in-region with AWS Cloud
Region
us-west-2
Bucket/Object Prefix: Protected buckets contain the data files for a given collection. Protected simply means users must log in to Earthdata Login before gaining access to contents within that S3 Bucket. Please use the S3Credential endpoint to gain an Earthdata login token for use in S3 Access.

Public buckets, in contrast, house metadata such as checksums, imagery, and metadata files and the like. A user can access public buckets and these types of files without logging in to Earthdata Login.

Most of the time, you'll want to access the protected bucket Information
podaac-ops-cumulus-protected/GEOS-3_ALT_GDR/
podaac-ops-cumulus-public/GEOS-3_ALT_GDR/
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Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
Citation DOC/NOAA/NESDIS/NODC. 1998. GEOS-3_ALT_GDR. 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://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/geos3/open/L2/docs/geos3_gdr.html

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