TRMM/PR L3 Monthly Rainfall
- DOI: 10.57746/EO.01gs73b09cn3yf7fc2hv1c0w6s
- Last Updated: 2023-02-14
Product Summary
TRMM/PR L3 Monthly Rainfall is obtained from the PR sensor onboard TRMM and produced by the Japan Aerospace Exploration Agency (JAXA). The Precipitation Radar (PR) is the primary instrument onboard TRMM. The most innovative of the five TRMM instruments, the PR is the first quantitative rain radar instrument to be flown in space. The major objectives of the PR instrument are as follows:
a. Provides a 3-dimensional rainfall structure
b. Achieves quantitative measurements of the rain rates over both land and ocean
When properly combined with TMI measurements, the Precipitation Radar (PR) data is instrumental in obtaining the height profile of the precipitation content, from which the profile of latent heat release from the Earth can be estimated. The rain rate is estimated from the radar reflectivity factor when the rain rate is small by applying conventional algorithms used for ground-based radar. For large rain rates, a rain attenuation correction is made using the total-path attenuation of land or sea surface echoes.
Monthly average of rain parameter at the height of 2, 4, 6, (10, 15) km in lon./lat. 5deg x 5deg and 0.5deg x 0.5deg region using TRMM/PR 1C21, 2A21, 2A23 and 2A25. (* 10,15km data are available only for 5deg x 5deg gridded region.
The provided format is HDF4. The statistical period is 1 month. The current version of the product is Version 7. The generation unit is global.
- Platform
- TRMM
- Sensor
- PR
Coverage
Temporal Coverage
1997-12-01 to 2015-04-02
Spatial Coverage
Bounding Rectangle
(40.0°,
-180.0°,
-40.0°,
180.0°)
Resolution
0.5deg
Location
- GEOGRAPHIC REGION > TROPICS
- Dataset Short Name
- TRMM_PR_L3_3A25
- Platform / Sensor
- TRMM / PR
- Coverage
-
- Spatial Coverage
-
Bounding Rectangle
(40.0°, -180.0°, -40.0°, 180.0°) - Temporal Coverage
- 1997-12-01 to 2015-04-02
- Product Level ID
- L3
- Version Description
Version 7, 2018-07-30, Available
- File Format
- HDF4
- Dataset Type
- None / Global
- Resolution
-
- Spatial Resolution
- 0.5deg
- Temporal Resolution
- None
- Dataset Progress
- Complete
- Projection
- None
- Collection Data Type
- SCIENCE_QUALITY
- Get Data
- https://gportal.jaxa.jp/gpr/?lang=en
- Dataset Title
- TRMM/PR L3 Monthly Rainfall
- Distribution Format
- HDF4
- Fees
- Free
- Citation
- Japan Aerospace Exploration Agency. 1997. TRMM/PR L3 Monthly Rainfall. https://doi.org/10.57746/EO.01gs73b09cn3yf7fc2hv1c0w6s
- Access Constraints
No constraints but users need to be registered with the G-portal User Registration system to download files.
- Use Constraints
The user is entitled to use G-Portal data free of charge without any restrictions (including commercial use) except for the condition about acknowledgement of data credit as stipulated in G-portal terms of use 7.(2).Click here for detailed G-Portal data usage constrains.
- G-Portal Terms of service
- https://gportal.jaxa.jp/gpr/index/eula?lang=en
- ISO Topic Categories
-
- CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
- Science Keywords
-
- EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION RATE
- Location Keywords
-
- GEOGRAPHIC REGION > TROPICS
ISO Topic Categories is the keywords in the ISO 19115 - Geographic Information Metadata.
Science Keywords hosts Global Change Master Directory (GCMD) Keywords which are a hierarchical set of controlled Earth Science vocabularies that help ensure Earth science data, services, and variables are described in a consistent and comprehensive manner and allow for the precise searching of metadata and subsequent retrieval of data, services, and variables.