What's New

• Sep. 24, 2026
  Maintenance

  System Maintenance

  Due to the system maintenance, processing of GPM images and products will be delayed or unavailable during the following period.
  Date:
  Sep. 30, 2026, 02:30 - 05:30UTC: Web and FTP access temporarily unavailable. Delay
  
• Sep. 11, 2026
  Maintenance

  System Maintenance

  Due to the system maintenance, processing of GPM images and products will be delayed or unavailable during the following period.
  Date:
  Period1: Sep. 16, 2026, 01:30 - 05:30UTC: Web and FTP access temporarily unavailable. Delay
  Period2: Sep. 17, 2026, 01:30 - 03:30UTC: Delay
  
• Jun. 16, 2026 (Jul. 29 update)
  Product

  Termination of Updates for GSMaP Algorithm Version 7

  The updates for the standard products of the Global Satellite Mapping of Precipitation (GSMaP) algorithm version 7 (v7), which have been provided via the FTP site, were terminated on May 31, 2026. This applies to the following products:
     GSMaP_MVK
     GSMaP_Gauge
  In addition, updates for the v7 near-real-time products were terminated on Jun 29, 2026. This applies to the following products:
     GSMaP_NRT
     GSMaP_Gauge_NRT
  Please note that the previous v7 data, as well as algorithm versions 6 (v6) and 8 (v8), will continue to be available.
  
  Details of the affected products, FTP site directories, and their respective availability periods are as follows:
  
  Standard products (GSMaP_MVK, GSMaP_Gauge)
  

  /standard/v7	(March 1, 2014 – May 31, 2026)
  /HDF/standard/v7	(January 1, 2024 – May 31, 2026)

  Near-real-time products (GSMaP_NRT, GSMaP_Gauge_NRT)
  

  /realtime_ver/v7	(April 1, 2017 – Jun 29, 2026)
  /HDF/realtime_ver/v7	(January 1, 2024 – Jun 29, 2026)

  
  We appreciate your understanding and continued support.
• Jul. 8, 2026
  Home Page

  JAXA Realtime weather watch (NEXRA3.0) has started providing forecasts up to 10 days ahead

  The weather forecasts provided by NEXRA3.0 have been extended from the previous 5-day forecast range to 10 days. By advancing the display time using options such as "+1 hour" or "+1 day," users can monitor future weather forecasts.
  *The actual number of forecast days available may vary depending on the operational status of the JAXA Supercomputer System (JSS) and other factors.*
  In addition, we have started releasing part of the NEXRA3.0 data via an FTP site. Please refer to this page for information on data use.
• Mar. 9, 2026
  Home Page

  Predicting global terrestrial water cycle at high resolution! -Today’s Earth - Global has been renewed-

  TE-Global, a global terrestrial hydrological simulation system that utilizes GSMaP, has been upgraded to a 0.1-degree resolution with an approximately 5-day forecast range. Its web page has now been released (data distribution via the FTP site is scheduled for a later date). Please also see the following article on the release (Japanese only).
  

  The detail information from here.
• Mar. 4, 2026
  Product

  GPM Products (Version 08) Release

  JAXA have started to provide a new version (Version 08) of GPM standard products.
  

  The related documents from here

  The GPM V08 products are available from the G-Portal.
• Feb. 28, 2026
  News

  12 years have passed since the GPM Core Observatory was launched!

  12 years have passed since the GPM Core Observatory was launched from the JAXA Tanegashima Space Center on February 28, 2014! The GPM Core Observatory continues to observe the global precipitation till now. Taking over the will of TRMM, we hope that the GPM Core Observatory will live longer.

  12th Anniversary Illustration
• Feb. 26, 2026
  News

  The second edition of the Guidelines for using the Global Satellite Mapping of Precipitation (GSMaP) was released.

  These guidelines are based on the GSMaP training materials provided by JAXA. These guidelines are intended to serve as a textbook for using GSMaP.
  

  GSMaP Guidelines (PDF)

  GSMaP Guidelines slide (ppt)