Imaging · dataset · 2025
TRMM Ground Validation Calibrated QC Radar Reflectivity Full Volume Scan L1C 1 hour V7 (TRMM_1C51UW) at GES DISC
Listed in NASA Data Portal
This dataset is part of the University of Washington TRMM Ground Validation products.
Description
Files are in "Universal Format", described in BAMS, Vol 61, No 11, November 1980, pp. 1401-1404. The purpose of the 1C51UW algorithm is to remove non-meteorological radar echoes that adversely affect the quality of higher level products, such as clutter associated with insects, birds, chaff, wildfires, antenna towers, and anomalous propagation (AP).
Eight adjustable parameters, three echo height thresholds and five radar reflectivity thresholds, are used to optimize the performance of the algorithm. Optimum performance is time consuming and requires an analyst to select different sets of parameters on a per volume scan basis, and on occasions performing several iterations while adjusting one or more of the parameters. 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/Images/TRMM_1C51UW_7.png ↗
download · from data nasa gov
- This dataset's landing page disc.gsfc.nasa.gov/datacollection/TRMM_1C51UW_7.html ↗
download · from data nasa gov
- Download this dataset through a directory map disc2.gesdisc.eosdis.nasa.gov/data/TRMM_GV_L1/TRMM_1C51UW.7 ↗
download · from data nasa gov
- Download this dataset through Earthdata Search search.earthdata.nasa.gov/search?q=TRMM_1C51UW ↗
download · from data nasa gov
- The dataset's project home page pmm.nasa.gov ↗
download · from data nasa gov
- atmos.washington.edu /gcg/MG/KWAJ/UWproductsOnDAAC.html ↗
View the primary investigator's documentation for this dataset
download · from data nasa gov
- atmos.washington.edu /gcg/MG/KWAJ/NewProductDocumentation010919.pdf ↗
View this dataset's algorithm theoretical basis document
download · from data nasa gov
- The dataset's project home page atmos.washington.edu/gcg/MG/KWAJ/GV.html ↗
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-calibrated-qc-radar-reflectivit… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=d67af6dd-4074-4210-88b3-0ed47c37f… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Earth & Environmental Science · Engineering · Ocean & Atmospheric Science
- Inferred from text
- Atmospheric sciences 73% · Video 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | d67af6dd-4074-4210-88b3-0ed47c37f97a | 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 (73%) |
| 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 |