Imaging · dataset · 2025
TRMM Precipitation Radar Surface Cross-Section L2 1.5 hours V7 (TRMM_2A21) at GES DISC
Listed in NASA Data Portal
The new version of these data is in GPM-like format (consistent with the GPM Dual-frequency Radar data format), and can be found under the name GPM_2APR.
Description
This is the sigma zero algorithm, which inputs the PR power (1B21) and computes estimates of the path attenuation and its reliability by using the surface as a reference target. It also computes the spatial and temporal statistics of the surface scattering cross section and classifies the cross sections into land/ocean and rain/no rain categories.
Changes in horizontal resolution resulting from the TRMM boost that occurred on 24 August 2001: Pre-Boost (before 7 August 2001): Temporal Resolution: 91.5 min/orbit ~ 16 orbits/day; Swath Width: 215 km; Horizontal Resolution: 4.3 km Post-Boost (after 24 August 2001): Temporal Resolution: 92.5 min/orbit ~ 16 orbits/day; Swath Width: 247 km; Horizontal Resolution: 5.0 km
Links
Get the data
- This dataset's landing page disc.gsfc.nasa.gov/datacollection/TRMM_2A21_7.html ↗
download · from data nasa gov
- Download this dataset through a directory map disc2.gesdisc.eosdis.nasa.gov/data/TRMM_L2/TRMM_2A21.7 ↗
download · from data nasa gov
- Use OPeNDAP to access the dataset's data disc2.gesdisc.eosdis.nasa.gov/opendap/TRMM_L2/TRMM_2A21.7 ↗
download · from data nasa gov
- Download this dataset through Earthdata Search search.earthdata.nasa.gov/search?q=TRMM_2A21 ↗
download · from data nasa gov
- View documentation related to this dataset pps.gsfc.nasa.gov/Documents/filespec.TRMM.V7.pdf ↗
download · from data nasa gov
- View documentation related to this dataset pps.gsfc.nasa.gov/Documents/formatChangesV7.pdf ↗
download · from data nasa gov
- View documentation related to this dataset eorc.jaxa.jp/TRMM/documents/PR_algorithm_product_information/pr_manual/PR_I… ↗
download · from data nasa gov
- View this dataset's read me document disc2.gesdisc.eosdis.nasa.gov/data/TRMM_L2/TRMM_2A21/doc/README.TRMM_V7.pdf ↗
download · from data nasa gov
- The dataset's project home page trmm.gsfc.nasa.gov ↗
download · from data nasa gov
- View documentation related to this dataset gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/anomalous.html ↗
download · from data nasa gov
- Get a related visualization docserver.gesdisc.eosdis.nasa.gov/public/project/Images/TRMM_2A21_7.png ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/trmm-precipitation-radar-surface-cross-section-l2-1-5-… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=2109969b-6659-45f4-b537-1e8ce0b05… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Earth & Environmental Science · Engineering · Ocean & Atmospheric Science
- Inferred from text
- Atmospheric sciences 70%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 2109969b-6659-45f4-b537-1e8ce0b05290 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3701 | enrichment · data nasa gov | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | vocabulary-mapper@1.0.0 | keywords['earth-science'] |
| concepts[field].local:field:engineering | 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 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |