Imaging · collection · 2023
TOPEX/POSEIDON Geophysical Data Record Version F
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/tpxps-gdrf1
The TOPEX/POSEIDON Geophysical Data Record (GDR) contains global coverage altimeter data.
Description
The objective of the TOPEX/POSEIDON mission, launched in August 1992, is to determine ocean topography with a sea surface height measurement precision of 3 cm and a sealevel measurement accuracy of 13 cm. The dataset contains measurements from two altimeters, a NASA dual frequency (Ku and C band) instrument similar to the Geosat altimeter, and a French space agency (CNES) instrument which is a proof-of-concept solid-state altimeter (Ku band).
It also contains Sea Surface Height (SSH), significant wave height, ionospheric correction, tides and other geophysical corrections. It is emphasized that this product is considered research data because of the form and content of the data. The data consist entirely of files comprising headers and data records which contain over a hundred parameters for each second.
Read the rest (2 more)
It is swath data and there are no images. Analysis software is the responsibility of the user. Calculation of sea surface height anomalies from the altimeter range and environmental corrections is the responsibility of the user.
The data are arranged in 10 day cycles that are separated into 254 passes, each about 56 minutes.
Links
Get the data
- Resource opendap.earthdata.nasa.gov ↗
This dataset can be accessed with the Open-source Project for a Network Data Access Protocol (OPeNDAP) API framework. This service enables variable and dimensional subsetting. The URL redirects to a p
metadata API · download · from NASA CMR, data nasa gov
- TOPEX/Poseidon Mission Page at JPL jpl.nasa.gov/missions/topex-poseidon ↗
documentation · download · from NASA CMR, data nasa gov
- Data Use and Citation Guidelines podaac.jpl.nasa.gov/CitingPODAAC ↗
documentation · download · from NASA CMR, data nasa gov
- TOPEX/POSEIDON GDR-F Products Handbook archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/topex/open/L2/docs/D-73899_tpx-grdf-hd… ↗
documentation · download · from NASA CMR, data nasa gov
- TOPEX/Poseidon Mission Page at NASA Sea Level sealevel.jpl.nasa.gov/missions/topex-poseidon ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2599212091-POCLOUD.iso19115 ↗
download · from data nasa gov
- HTTPS endpoint for data browse and download cmr.earthdata.nasa.gov/virtual-directory/collections/C2599212091-POCLOUD ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2599212091-POCLOUD ↗
Browse granule search results in Earthdata Search
download · from NASA CMR
- T/P Cycle Start Times archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/topex/open/L2/docs/tp_cyclelist.txt ↗
download · from NASA CMR
- T/P Satellite Attitude Event Information archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/topex/open/L2/docs/tp_maneuver.txt ↗
download · from NASA CMR
- T/P Safehold Start and Stop Times archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/topex/open/L2/docs/tpsafehold.txt ↗
download · from NASA CMR
- github.com /podaac/data-subscriber ↗
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 lin
download · from NASA CMR
- JPEG podaac.jpl.nasa.gov/Podaac/thumbnails/TOPEX_POSEIDON_GDR_F.jpg ↗
download · preview image · from data nasa gov, NASA CMR
- Resource harmony.earthdata.nasa.gov ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/topex-poseidon-geophysical-data-record-version-f-5ddf9 ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/tpxps-gdrf1 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=6790d281-cf35-49e3-9f1e-1ae0f7787… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2599212091-POCLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2599212091-POCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Ocean Topography Experiment · Sea Surface Height · Significant Wave Height · TOPEX Microwave Radiometer · TOPEX Radar Altimeter
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Image 65%
Provenance · 2 source records, 20 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2599212091-POCLOUD | 15 d ago | JSON v1 |
| NASA Data Portal | 6790d281-cf35-49e3-9f1e-1ae0f7787591 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:alt-topex | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:tmr | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-waves/significant-wave-height | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/sea-surface-topography/sea-surface-height | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:topex-poseidon | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |