- Dataset Availability
- 1998-01-01T00:00:00Z–2019-12-31T21:00:00Z
- Dataset Provider
- NASA GES DISC at NASA Goddard Space Flight Center
- Earth Engine Snippet
-
ee.ImageCollection("TRMM/3B42")
- Cadence
- 3 Hours
- Tags
Description
The Tropical Rainfall Measuring Mission (TRMM) is a joint mission between NASA and the Japan Aerospace Exploration Agency (JAXA) designed to monitor and study tropical rainfall. The 34B2 product contains a gridded, TRMM-adjusted, merged infrared precipitation (mm/hr) and RMS precipitation-error estimate, with a 3-hour temporal resolution and a 0.25 degree spatial resolution.
See the algorithm description and the file specification for details.
Documentation:
Bands
Resolution
27830 meters
Bands
| Name | Units | Min | Max | Description | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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precipitation |
mm/hr | 0 | 100 | Merged microwave/IR precipitation estimate |
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relativeError |
mm/hr | 0 | 100 | Merged microwave/IR precipitation random error estimate |
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satPrecipitationSource |
Flag to show source of data |
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HQprecipitation |
mm/hr | 0 | 100 | Pre-gauge-adjusted microwave precipitation estimate |
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IRprecipitation |
mm/hr | 0 | 100 | Pre-gauge-adjusted infrared precipitation estimate |
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satObservationTime |
min | -90 | 90 | Satellite observation time minus the time of the granule. In case of overlapping satellite observations, the two or more observation times are equal-weighting averaged. |
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Terms of Use
Terms of Use
This dataset is in the public domain and is available without restriction on use and distribution. See NASA's Earth Science Data & Information Policy for additional information.
Citations
Adler, R.F., G.J. Huffman, A. Chang, R. Ferraro, P. Xie, J. Janowiak, B. Rudolf, U. Schneider, S. Curtis, D. Bolvin, A. Gruber, J. Susskind, P. Arkin, E.J. Nelkin, 2003: The Version 2 Global Precipitation Climatology Project (GPCP) Monthly Precipitation Analysis (1979-Present). J. Hydrometeor., 4(6), 1147-1167.
Huffman, G.J., 1997: Estimates of Root-Mean-Square Random Error for Finite Samples of Estimated Precipitation, J. Appl. Meteor., 1191-1201.
Huffman, G.J., 2012: Algorithm Theoretical Basis Document (ATBD) Version 3.0 for the NASA Global Precipitation Measurement (GPM) Integrated Multi-satellitE Retrievals for GPM (I-MERG). GPM Project, Greenbelt, MD, 29 pp.
Huffman, G.J., R.F. Adler, P. Arkin, A. Chang, R. Ferraro, A. Gruber, J. Janowiak, A. McNab, B. Rudolph, and U. Schneider, 1997: The Global Precipitation Climatology Project (GPCP) Combined Precipitation Dataset, Bul. Amer. Meteor. Soc., 78, 5-20.
Huffman, G.J., R.F. Adler, D.T. Bolvin, G. Gu, E.J. Nelkin, K.P. Bowman, Y. Hong, E.F. Stocker, D.B. Wolff, 2007: The TRMM Multi-satellite Precipitation Analysis: Quasi-Global, Multi-Year, Combined-Sensor Precipitation Estimates at Fine Scale. J. Hydrometeor., 8(1), 38-55.
Huffman, G.J., R.F. Adler, M. Morrissey, D.T. Bolvin, S. Curtis, R. Joyce, B McGavock, J. Susskind, 2001: Global Precipitation at One-Degree Daily Resolution from Multi-Satellite Observations. J. Hydrometeor., 2(1), 36-50.
Huffman, G.J., R.F. Adler, B. Rudolph, U. Schneider, and P. Keehn, 1995: Global Precipitation Estimates Based on a Technique for Combining Satellite-Based Estimates, Rain Gauge Analysis, and NWP Model Precipitation Information, J. Clim., 8, 1284-1295.
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.ImageCollection('TRMM/3B42') .filter(ee.Filter.date('2018-04-01', '2018-04-10')); var precipitation = dataset.select(['precipitation', 'HQprecipitation', 'IRprecipitation']); var precipitationVis = { min: 0, max: 12, gamma: 5, }; Map.setCenter(-79.98, 23.32, 4); Map.addLayer(precipitation, precipitationVis, 'Precipitation');