This dataset is the output from the TMPA (TRMM Multi-satellite Precipitation Analysis) Algorithm, and provides precipitation estimates in the TRMM regions that have the (nearly-zero) bias of the ”TRMM Combined Instrument” precipitation estimate and the dense sampling of high-quality microwave data with fill-in using microwave-calibrated infrared estimates. The granule temporal coverage is 3 hours.
For more information, please see the NASA GES DISC documentation
Note: The multi-satellite 3B42* / TMPA / TMPA-RT products ended on December 31, 2019. GPM IMERG dataset now includes TRMM-era data going back to June 2000, and is now the recommended multi-satellite dataset to use for most purposes.
To cite the data in publications:
Tropical Rainfall Measuring Mission (TRMM) (2011), TRMM (TMPA) Rainfall Estimate L3 3 hour 0.25 degree x 0.25 degree V7, Greenbelt, MD, Goddard Earth Sciences Data and Information Services Center (GES DISC), Accessed: [Data Access Date], 10.5067/TRMM/TMPA/3H/7
References:
Huffman, G.J. (1997), Estimates of Root-Mean-Square Random Error for Finite Samples of Estimated Precipitation, J. Appl. Meteor.
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
Huffman, G.J., R.F. Adler, D.T. Bolvin, E.J. Nelkin (2010), The TRMM Multi-satellite Precipitation Analysis (TMPA). Chapter 1 in Satellite Rainfall Applications for Surface Hydrology, doi:10.1007/978-90-481-2915-7
Variables | Precipitation [mm/hr], Relative error [mm/hr], High quality precipitation [mm/hr], IR precipitation [mm/hr] |
Zonal | 180W to 180E by 0.25 deg |
Meridional | 50S to 50N by 0.25 deg |
Vertical | surface |
Temporal | V7: Jan 1, 1998 to Dec 31, 2019 by three hours |
Static? | yes |
Volume | 4240 kbytes/day |
Server | public: |
Source | https://disc.gsfc.nasa.gov/datasets/TRMM_3B42_7/summary |
Acquired | Aug 12, 2006 (Updated Mar 2020) |
APDRC contact | / |
Supplements | README.TRMM_V7.pdf |