Date:  /  /
凡例

We offer hourly global rainfall maps in near real time (about four hours after observation) using the combined MW-IR algorithm with GPM-Core GMI, TRMM TMI, GCOM-W AMSR2, DMSP series SSMIS, NOAA series AMSU, MetOp series AMSU and Geostationary IR data. Background cloud images are globally merged IR data produced by NOAA Climate Prediction Center (CPC), using IR data observed by JMA's MTSAT satellite, NOAA's GOES satellites and EUMETSAT's Meteosat satellites.

User Registartion

To use data, user registration is needed. Following products will be available after it.

  • Near-real-time version (4-hr data latency, since Oct. 2008)
  • Realtime version (0-hr data latency, since Nov. 2015)
  • Standard version (3-day data latency, since Mar. 2014)
  • Standard with gauge-calibration (3-day data latency, since Mar. 2014)
  • Reanalysis version (updated occasionally, a period from Mar. 2000 to Feb. 2014)
  • Reanalysis with gauge-calibration (updated occasionally, a period from Mar. 2000 to Feb. 2014)
JAXA Super Computer System (JSS2) was used in processing of the reanalysis versions.

Since November 2, data of the realtime version (GSMaP_NOW) over the Geostationary satellite "Himawari" area, whose browse images are available from the "Realtime Rainfall Watch" web site, are also available.

  • User Registration

Joint research with other organizations

Currently, JAXA conducts joint researches with following organizations to develop and improve the GSMaP algorithms.

Validation of the GSMaP product at each region are included in intercomparison activities of satellite precipitation products, which is promoted by the International Precipitation Working Group (http://www.isac.cnr.it/~ipwg/).

What’s New

Jul/29/'16
NEW
Distribution of the satellite data of the part and the IR data has been suspended by the system maintenance of NASA since 13Z 28th July.
An accuracy of the GSMaP_NRT may be worse and the IR and the satellite figures will be lack in the homepage until its recovery.
Apr/15/'16
We added the GSMaP Reanalysis Product (GSMaP_RNL) and its gauge-calibrated version, which were processed with GSMaP V6 algorithm (the latest one) for the past period before the launch of GPM Core Observatory.
Because archive data before December 2010 were added in this time, you can download data from March 2000 to February 2014.
Apr/12/'16
We added GSMaP_NOW products and updated "JAXA Realtime Rainfall Watch (GSMaP_NOW)" web site.

For GSMaP_NOW data;
The GrADS-readable products are newly added.
Archive data (Rain rate and time flag) of the GrADS-readable products are newly added.

For the "JAXA Realtime Rainfall Watch web site, the full-screen mode or window mode can be selected.
( http://sharaku.eorc.jaxa.jp/
GSMaP_NOW/index_full.htm
)
Apr/08/'16
Due to the system maintenance, Web, FTP, and user registration services will be unavailable during the following period.
Date: Apr. 13, 2016, 01:25-3:00(UTC)
Feb/24/'16
Quality of the GSMaP near real-time product has been better since 13z 23rd February 2016.We are sorry for any inconvenience caused.
Feb/23/'16
The IR data trouble provided by the NOAA/CPC occurred since 19Z 22th February.
An accuracy of the GSMaP_NRT may be worse and the IR figures will be lack in the homepage until its recovery.
Jan/19/'16
We resumed processing from January 19 (JST).
Jan/17/'16
Due to the system failure occurred.
JAXA, we temporarily stop update of our dataset, "Global Rainfall Map in Near Real Time (GSMaP_NRT)", at present.
Dec/25/'15
GSMaP products are updated with product version 03F without reprocess of past period data.
Nov/02/'15
"JAXA Realtime Rainfall Watch" web site and GSMaP Realtime version (GSMaP_NOW) were released.
Sep/25/'15
GSMaP Reanalysis Product (GSMaP_RNL) and its gauge-calibrated version (GSMaP_Gauge_RNL) January 2011 to February 2014 is available.
Sep/15/'15
Due to trouble, IR data was not available from 11Z 14 September 2015 to 21Z 14 September 2015. This affects process and accuracy of GSMaP_NRT.
Jun/29/'15
For NRT data, daily 0.1-deg products of GSMaP_MVK Version 6 are newly added.
For both NRT and MVK text format data, output format of rain rate is modified from F5.2 to F6.2.
Apr/27/'15
We resumed distribution of the GPM-GSMaP near-real-time data, including all data during suspended period.
Apr/24/'15
Due to the NASA's system maintenance and consequent shutdown of data flow, distribution of the GPM-GSMaP near-real-time data will be suspended during following period.
From 10UTC April 26 (Sun) to the midnight of April 27 (Mon), 2015.
Sorry for your inconvenience. This only affects to the near-real-time data, and past period data will be available during this period.
Apr/23/'15
GSMaP products are updated with product version 03E. All GSMaP products are started reprocessing with product version 03E.
Apr/17/'15
Due to trouble in NOAA, IR data is not available since 17Z 14 April 2015. This affects process and accuracy of GSMaP_NRT.
And GPM GSMaP standard products aren't available from April 13, 2015.
Mar/26/'15
GSMaP products are updated with product version 03D without reprocess of past period data.
Nov/18/'14
GSMaP products are started reprocessing with product version 03C. All GSMaP products are reprocessed with product version 03C.
Oct/22/'14
Due to network trouble in NOAA/NESDIS, AMSU and IR data is not available since 00Z 21 Oct. 2014. This affects process and accuracy of GSMaP_NRT.
Sep/03/'14
Algorithm updates to the same version to the Global Precipitation Measurement (GPM) Global Rainfall Map (GPM-GSMaP) product since Sep. 3, 2014.
Browse images will be replaced by reanalysis version about 3-days later.
Apr/25/'14
We resumed processing from April 24 (JST).
Apr/21/'14
Due to the system failure occurred on 19 April, 2014 (JST).
JAXA, we temporarily stop update of our dataset, "Global Rainfall Map in Near Real Time (GSMaP_NRT)", at present.
We are planning to resume processing on 23 April, 2014 (JST).
Sep/24/'13
Your connection may fail briefly for maintenance during the following period.
Period: 08:00(JST), Sep. 28 to 18:00(JST)
Aug/29/'13
Due to the network maintenance, our Web,FTP service will be temporarily unavailable during the following times.
Times: Sep. 3, 2013, 10:30, 14:30(JST)
Jul/19/'13
Due to the network maintenance, your connection may be closed during the following period.
Period: Jul. 20-21, 2013.
Jul/12/'13
Due to the network maintenance, your connection may be closed during the following period.
Period: Jul. 13-14, 2013.
Jul/04/'13
We have completely renewed the WEB site "JAXA Global Rainfall Watch". In addition to the mode in which to display the global data up to now, also now available in overlay mode to display Google Map.
Jul/01/'13
GCOM-W1/AMSR2 and DMSP-F18/SSMIS data have been introduced to GSMaP_NRT system since 00UTC 1 July 2013.
Jan/07/'13
We made the GSMaP logo. It released on the GPM HP.

Description

Variable
Rainfall rate (mm/hr)
Domain
Global (60N - 60S)
Grid resolution
0.1 degree lat/lon
Temporal resolution
1 hour

Instruction for Users

For more details about this web site and GSMaP, please read Users Guide.

  • Readme