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Integrated Multi-satellitE Retrievals for GPM (IMERG) Technical Documentation
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Abstract:
28 April 2015 NOAA reprocessed the global IR data for 10 UTC 26 April through 14 UTC 27 April due to dropped images, however there is no straightforward way to re-do the Early and Late Runs, so that period should display somewhat lower quality in the regions that lack IR input. 17 April 2015 IMERG Early and Late Runs ceased when CPC Global 4 km Merged IR data dropped out, starting 17 UTC 14 April due to processing issues at NOAA, and were caught up after the data returned around 11 UTC 17 April. 8 April 2015 End of TMI data 1 April 2015 Initial release of IMERG Late Run (V03D); beta release of Day-1 IMERG Early Run. 13 March 2015 Beta release of Day-1 IMERG Late Run. 20 January 2015 Revised release of IMERG Final Run (V03D). 16 January 2015 Initial release retracted due to minor inconsistencies in “missing” values. 15 January 2015 Initial release of IMERG Final Run (V03D). 4 December 2014 Beta release of Day-1 IMERG Final Run for Early Adopters.read more
Citations
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Journal ArticleDOI
Evaluation of GPM Day-1 IMERG and TMPA Version-7 legacy products over Mainland China at multiple spatiotemporal scales
TL;DR: In this article, the authors compared the performance of IMERG and 3B42V7 at both sub-daily and daily timescales, and all the three spatial scales, and showed that IMERG can better reproduce the probability density function (PDF) in terms of precipitation intensity, particularly in the low ranges.
Journal ArticleDOI
Ground validation of GPM IMERG and TRMM 3B42V7 rainfall products over southern Tibetan Plateau based on a high‐density rain gauge network
TL;DR: In this article, the authors evaluate two satellite rainfall products Global Precipitation Measurement Integrated MultisatellitE Retrievals and Tropical Rainfall Measuring Mission 3B42V7 (GPM IMERG and TRMM 3B 42V7) in southern Tibetan Plateau region, with special focus on the dependence of products' performance on topography and rainfall intensity.
First-Year Evaluation of GPM Day-1 IMERG and TMPA Version-7 Legacy Products over Mainland China at Multiple Spatiotemporal Scales
TL;DR: In this article, the authors compared the performance of IMERG and 3B42V7 at both sub-daily and daily timescales, and all the three spatial scales, and showed that IMERG can better reproduce the probability density function (PDF) in terms of precipitation intensity, particularly in the low ranges.
Journal ArticleDOI
Hurricane Harvey Links to Ocean Heat Content and Climate Change Adaptation
TL;DR: In this paper, the authors demonstrate links between increased upper ocean heat content due to global warming with the extreme rainfalls from recent hurricanes and show that record high ocean heat values not only increased the fuel available to sustain and intensify Harvey but also increased its flooding rains on land.
Journal ArticleDOI
Comparison of GPM IMERG, TMPA 3B42 and PERSIANN-CDR satellite precipitation products over Malaysia
Mou Leong Tan,H. Santo +1 more
TL;DR: The authors performed an initial comparison of three GPM IMERG products (IMERG_E, IMERG_L and IMERG-F) with its predecessor, the TMPA 3B42 and 3b42RT products, and a long-term PERSIANN-CDRD product over Malaysia.
References
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Journal ArticleDOI
The TRMM Multisatellite Precipitation Analysis (TMPA): Quasi-Global, Multiyear, Combined-Sensor Precipitation Estimates at Fine Scales
George J. Huffman,Robert F. Adler,David T. Bolvin,Guojun Gu,Guojun Gu,Eric Nelkin,Kenneth P. Bowman,Yang Hong,Yang Hong,Erich Franz Stocker,David B. Wolff +10 more
TL;DR: The TRMM Multi-Satellite Precipitation Analysis (TMPA) as discussed by the authors provides a calibration-based sequential scheme for combining precipitation estimates from multiple satellites, as well as gauge analyses where feasible, at fine scales.
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The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2)
Ronald Gelaro,Will McCarty,Max J. Suarez,Max J. Suarez,Ricardo Todling,Andrea Molod,Lawrence L. Takacs,Cynthia A. Randles,Cynthia A. Randles,Anton Darmenov,Michael G. Bosilovich,Rolf H. Reichle,Krzysztof Wargan,Lawrence Coy,Richard I. Cullather,Richard I. Cullather,Clara S. Draper,Clara S. Draper,Santha Akella,V. Buchard,V. Buchard,Austin Conaty,Arlindo da Silva,Wei Gu,Gi-Kong Kim,Randal D. Koster,Robert A. Lucchesi,Dagmar Merkova,J. E. Nielsen,Gary Partyka,Steven Pawson,William M. Putman,Michele M. Rienecker,Siegfried D. Schubert,Meta Sienkiewicz,Bin Zhao,Bin Zhao +36 more
TL;DR: An overview of the MERRA-2 system and various performance metrics is provided, including the assimilation of aerosol observations, several improvements to the representation of the stratosphere including ozone, and improved representations of cryospheric processes.
Journal ArticleDOI
CMORPH: A Method that Produces Global Precipitation Estimates from Passive Microwave and Infrared Data at High Spatial and Temporal Resolution
TL;DR: In this article, the shape and intensity of the precipitation features are modified during the time between microwave sensor scans by performing a time-weighted linear interpolation, yielding spatially and temporally complete microwave-derived precipitation analyses, independent of the infrared temperature field.
Journal ArticleDOI
The Tropical Rainfall Measuring Mission (TRMM) Sensor Package
TL;DR: In this article, the authors present a reference guide to users wishing to make use of the Tropical Rainfall Measuring Mission data, which covers each of the three primary rainfall instruments: the passive microwave radiometer, the precipitation radar, and the Visible and Infrared Radiometer System on board the spacecraft.