Imaging · dataset · 2025
TRMM Ground Validation Radar Site 3D Rain Map L3 1 month 2 km V7 (TRMM_3A55) at GES DISC
Listed in NASA Data Portal
The 3A55, 'Monthly 3-D Structure', provides radar site monthly 3-D structure information obtained from 2A55.
Description
The 2A55 'Radar Site 3-D Reflectivities', is composed of 3 different fields. The first field has an array of 3-D reflectivities in Cartesian coordinates with a 2 km horizontal resolution over an area of 300 km x 300 km for single radar sites, and 724 km x 568 km for Texas multiple radar site, 512 km x 704 km for Florida multiple radar site.
It has a vertical resolution of 1.5km and a height range up to 19.5 km. The second field has an array of vertical profiles based on the first field, and the third field has an array of the Contoured Frequency by Altitude Diagram (CFAD) data based on the first and second field. A key component of the TRMM project is the Ground Validation (GV) effort which consists of collecting data from ground-based radar, rain gauges and disdrometers.
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The data is quality-controlled, and then validation products are produced for comparison with TRMM satellite products. The four primary GV sites are: + Darwin, Australia; + Houston, Texas; + Kwajalein, Republic of the Marshall Islands; + Melbourne, Florida. A significant effort is also being supported at NASA Wallops Flight Facility (WFF) and vicinity to provide high quality, long-term measurements of rain rates (via a network of rain gauges collocated with National Weather Service gauges), as well as drop size distributions (DSD) using a variety of instruments, including impact-type Joss Waldvogel, laser-optical Parsivel, as well as two-dimensional video disdrometers.
DSD measurements are also being collected at Melbourne and Kwajalein using Joss-Waldvogel disdrometers.
Links
Get the data
- Get a related visualization docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/browse/TRMM.logo.PNG ↗
download · from data nasa gov
- This dataset's landing page disc.gsfc.nasa.gov/datacollection/TRMM_3A55_7.html ↗
download · from data nasa gov
- Download this dataset through a directory map disc2.gesdisc.eosdis.nasa.gov/data/TRMM_GV_L3/TRMM_3A55.7 ↗
download · from data nasa gov
- Download this dataset through Earthdata Search search.earthdata.nasa.gov/search?q=TRMM_3A55 ↗
download · from data nasa gov
- The dataset's project home page trmm-fc.gsfc.nasa.gov/trmm_gv ↗
download · from data nasa gov
- pps.gsfc.nasa.gov /Documents/ICSVol4.pdf ↗
View the primary investigator's documentation for this dataset
download · from data nasa gov
- The dataset's project home page trmm-fc.gsfc.nasa.gov ↗
download · from data nasa gov
- trmm-fc.gsfc.nasa.gov /trmm_gv/software/gvs/2A-55.html ↗
View this dataset's algorithm theoretical basis document
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
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/trmm-ground-validation-radar-site-3d-rain-map-l3-1-mon… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=416eb997-a794-445b-b289-d23fb42a6… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Earth & Environmental Science · Engineering · Ocean & Atmospheric Science
- Inferred from text
- Atmospheric sciences 70% · Video 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 416eb997-a794-445b-b289-d23fb42a6bb6 | 10 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 | |
| concepts[modality].local:modality:video | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (75%) |
| 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 |