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GPM Mission ATBD (Algorithm Theoretical Basis Documents)
GPM Version 08 ATBD Documentation
GPM GMI Level 1B (L1B) Version 08 Algorithm Theoretical Basis Document
TRMM/GPM Level 1B Algorithm Theoretical Basis Document
GPM Level 1C Version 08 Algorithm Theoretical Basis Document
GPM DPR Level 2 Version 08 Algorithm Theoretical Basis Document
TRMM/GPM Spectral Latent Heating (SLH) Version 08 Algorithm Theoretical Basis Document
GPM Version 07 ATBD Documentation
GPM Level 1C Algorithms Algorithm Theoretical Basis Document
GPM/DPR Level 2 for V07 Algorithm Theoretical Basis Document
GPM/DPR Level 3 for V07 Algorithm Theoretical Basis Document
GPM GPROF2021 Version 1 for V07 Algorithm Theoretical Basis Document
CloudSat-TRMM and CloudSat-GPM Coincidence Dataset (Version 5 Current document)
Spectral Latent Heating (SLH) for GPM Algorithm Theoretical Basis Document (ATBD) V07A
The Goddard Convective-Stratiform Heating (CSH) Algorithm V07 Algorithm Theoretical Basis Document
GPM Combined Radar-Radiometer Precipitation Algorithm Theoretical Basis Document (Version 7)
GPM Version 06 ATBD Documentation
Spectral Latent Heating (SLH) for TRMM/GPM Algorithm Theoretical Basis Document (ATBD) V06A
Spectral Latent Heating (SLH) for TRMM/GPM Algorithm Theoretical Basis Document (ATBD) V06B
GPM/ DPR Level 2 Algorithm Theoretical Basis Document (ATBD)
Goddard Convective-Stratiform Heating (CSH) Algorithm
GPM Precipitation Retrieval and Profiling Scheme (PRPS) - SAPHIR (Current Document)
GPM Version 06X (Experimental) Documentation
GPM / DPR Level 3 for V06X Algorithm Theoretical Basis Document (ATBD)
GPM/ DPR Level 2 Algorithm Theoretical Basis Document (ATBD) for V06X
GPM Version 05 ATBD Documentation
GPM Algorithm Theoretical Basis Document (ATBD) Level 1C Algorithms
GPM/DPR Level-2 Algorithm Theoretical Basis Document
GPM Combined Radar-Radiometer Precipitation Algorithm Theoretical Basis Document (Version 05)
GPM Precipitation Retrieval and Profiling Scheme (PRPS) - SAPHIR
CloudSat-TRMM and CloudSat-GPM Coincidence Dataset (Version 5- Current Document)
CloudSat-GPM Coincidence Dataset Version 3B (Prior Version Document)
Spectral Latent Heating (SLH) for GPM Algorithm Theoretical Basis Document (ATBD)
GPM Version 04 ATBD Documentation
GPM/DPR Level-2 Algorithm Theoretical Basis Document (V04 document)
GPM/DPR Level-3 Algorithm Theoretical Basis Document
GPM Combined Radar-Radiometer Precipitation Algorithm Theoretical Basis Document (Version 4) updates are included in appendix D
GPM Level 1C Algorithms (L1C) Algorithm Theoretical Basis Document (ATBD) V04 document
GPM GPROF (Level 2) Algorithm Theoretical Basis Document.
GPM Integrated Multi-satellite Retrievals for GPM (IMERG)
GPM Geolocation Toolkit Algorithm Theoretical Basis Document (ATBD)
GPM Integrated Multi-satellitE Retrievals for GPM (IMERG) Algorithm Theoretical Basis Document (ATBD)
GPM Goddard Convective Stratiform Heating (CSH) Algorithm
CloudSat-GPM Coincidence Dataset Version 2A (ATBD)
GPM Version 03 ATBD Documentation
GPM Combined Radar-Radiometer Precipitation Algorithm Theoretical Basis Document (Draft V3)
GPM/DPR Level-2 Algorithm Theoretical Basis Document (Older V03 document)
GPM Level 1C Algorithms (L1C) Algorithm Theoretical Basis Document (ATBD) (Older V03 document)
TRMM Algorithm Theoretical Basis Documentation (ATBD) and ICS Documentation.
(Please Note: The TRMM mission ended in 2015). TRMM post-Version 7 products fully incorporate TRMM data into the Global Precipitation Measurement (GPM) mission data processing. TRMM Level 2 (L2) and Level 3 (L3) products have now become part of the GPM data suite. TRMM products are now in GPM HDF5 format and are labeled with product versions V05A/V06A and now V07.The documentation below is referenced for research and historical purposes. All other historical TRMM documentation can be viewed Here.
TRMM TMI Level 1B Algorithm Theoretical Basis Documentation (ATBD)
TRMM Version 6 Interface Control Specifications and Other Related Algorithm Documents
TRMM Data Products and Algorithm Descriptions (Link to non-PPS website -Some links may not function properly. Interface Control Specifications (ICS) documents referenced to in text can be found here.

Visualization of the GPM Core Observatory satellite orbiting the planet Earth (Courtesy of GPM)
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- Page Last Updated: March 03, 2026


