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[ Maintenance ]new
February 20, 2024

Due to the system maintenance, processing of GPM images and products will be delayed or unavailable during the following period.

Period-1 : Feb. 22-26 01:00(UTC), 2024 : Web update stopped (while FTP available)
Period-2 : Feb. 26, 2024, 01:00 - 06:00(UTC): Web and FTP unavailable
Period-3 : Mar. 06, 2024, 01:00 - 03:00(UTC): Web and FTP unavailable

[ E-Mail Server Maintenance Notification ]
January 25, 2024

Due to email server maintenance, inquiries to the TRMM_team may be bounced on Jan. 27, 2024. If the email bounces, please resend it another day.

[ GPM/DPR Near-real-time (NRT) processing products (version 07X) Release ]
January 16, 2024

JAXA and NASA started to release near-real-time (NRT) processing products of the Global Precipitation Measurement Program (GPM) Dual-frequency Precipitation Radar product (DPR) version 07X at 8 UTC 16th January 2024. This version 07X is the first product to support changes in the orbit boost of the GPM Core Observatory. V07X is positioned as an experimental version, and we plan to continue calibration and evaluation, and resume providing DPR standard products (calibration verified) in March 2024.

The detail information from here

[ GPM Orbit Boost ]
December 1, 2023

As in the announcement of the NASA homepage, the GPM Core Observatory satellite performed two orbit boost maneuvers on Nov. 7 and 8, 2023 that raised its altitude from 400km to 435km.

The detail information from here

[ Maintenance ]
Novembere 27, 2023

Access to our web services will be difficult from 01:00(UTC), Dec.5 to 08:00(UTC), Dec.5 due to our system maintenance. We apologize for any inconvenience.

[ Suspension of GPM/DPR and Minor upgrade of GSMaP ]
Novembere 1, 2023

We suspend to provide GPM/DPR products(V07) from 8:00(UT) November 7, 2023 because of GPM orbit boost. We are going to restart providing Near-real-time products from January 2024, Standard products from March 2024.

The detail information from here

[ GPM Orbit Boost ]
October 16, 2023

As in the announcement of the NASA GPM Website, the GPM Core Observatory satellite is scheduled to undergo a series of orbit boost maneuvers which will raise its altitude from 400km to 435km.

The detail information from here

[ GSMaP reprocessing data (V8 algorithm) was updated. ]
September 15, 2023

There were issues for reprocessed data of GSMaP MVK and MVK_gauge v8 released in July 2023, so the data were reprocessed.
The product version of the reprocessed data were changed 'V8.0000.0' to 'V8.0000.1'.
For users have already download them, please re-download them.

Details of the reprocessed data from here

[ GSMaP reprocessing data (V8 algorithm) is now available! ]
July 10, 2023

We added the reprocessing data of the GSMaP for the past period after the launch of TRMM Observatory. So you can download data since January 1998 in version 8.

[ GPM Products (Version 07B) Release ]
July 3, 2023

JAXA have started to provide a new version (Version 07B) of GPM standard products.
The GPM V07 products are available from the G-Portal

The related documents from here

mission objectives mission instruments satelite overview What's TRMM? Browse and Data TRMM in Google Earth Monitoring Topics tropical cyclones tropical Cyclone Monitoring Tropical Cyclone Database TRMM Disaster Map Reference Room Statellite Information PR Algorithm and Product Information Use of Data Museum Events Posters Leaflets