GSMaP(Monthly)

  • DOI: 10.57746/EO.01gs73bktym5xwr10j34rwqgj8
  • Last Updated: 2026-11-09
Data Progress: In Work
G-Portal

Product Summary

GSMaP Monthly dataset is obtained from the Dual-frequency Precipitation Radar (DPR) sensor onboard Global Precipitation Measurement (GPM), other GPM constellation satellites, and Geostationary satellites produced by the Japan Aerospace Exploration Agency (JAXA).
The GSMaP is generated based on a multi-satellite algorithm under the GPM mission, and the accuracy has been improved by DPR data and information. It offers a map of global precipitation by combining: estimated precipitation based on multiple microwave radiometers (imager/sounder) and cloud moving information obtained from geostationary infrared (IR) data.
The GSMaP algorithm can be roughly divided into the following three algorithms: microwave imager (MWI) algorithm, microwave sounder (MWS) algorithm, and microwave-Infrared (IR) combined (MVK) algorithm. A global satellite mapping of precipitation can be subject to standard processing or near real-time processing. In standard processing, hourly observation data is processed and data is averaged monthly. Near real-time processing provides a higher data frequency than standard processing (every hour).
The Sampling resolution is 0.1degree grid. The projection method is EQR. The statistical period is 1 monthly. The generation unit is global.

Platform
GPM
Sensor
DPR, GMI

Coverage

Temporal Coverage

1998-01-01 to Present

Spatial Coverage

Bounding Rectangle

Resolution

0.1 deg

Location

  • GEOGRAPHIC REGION > GLOBAL
Dataset Short Name
GSMaP_Monthly
Platform / Sensor
GPM / DPR, GMI
Coverage
Spatial Coverage
Bounding Rectangle
Temporal Coverage
1998-01-01 to Present
Product Level ID
L3
Version Description

Version 4, 2017-01-17, Not Available
Version 5, 2021-12-06, Available
Version 6, 2026-10-19, Available

File Format
NetCDF4, TEXT, HDF5(V05), GeoTIFF(V05)
Dataset Type
monthly / Global
Resolution
Spatial Resolution
0.1 deg
Temporal Resolution
monthly
Dataset Progress
In Work
Projection
EQR
Collection Data Type
SCIENCE_QUALITY
Get Data
https://www.gportal.jaxa.jp/?lang=en
Dataset Title
GSMaP(Monthly)
Distribution Format
NetCDF4, TEXT, HDF5(V05), GeoTIFF(V05)
Fees
Free
Citation
Japan Aerospace Exploration Agency. 1998. GSMaP(Monthly). https://doi.org/10.57746/EO.01gs73bktym5xwr10j34rwqgj8
Access Constraints

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Use Constraints

Data provided by G-Portal may be used freely and free of charge by anyone without any restrictions, including for commercial purposes. Notwithstanding the foregoing, use of the data is limited to peaceful purposes, and Users must indicate the source of the data, as specified in G-portal terms of use 5.(2), and provide prior notice when using the data for commercial purposes, as specified in G-portal terms of use 5.(3). Click here for detailed G-Portal data usage constrains.

G-Portal Terms of service
https://www.gportal.jaxa.jp/gpr/index/eula?lang=en
ISO Topic Categories
  • CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Science Keywords
  • EARTH SCIENCE > ATMOSPHERE > PRECIPITATION
Location Keywords
  • GEOGRAPHIC REGION > GLOBAL
ECV and other Keywords
  • Precipitation Rate
  • Spatial statistics
  • Temporal statistics
  • Gauge correction

ISO Topic Categories is the keywords in the ISO 19115 - Geographic Information Metadata.

Science Keywords hosts Global Change Master Directory (GCMD) Keywords which are a hierarchical set of controlled Earth Science vocabularies that help ensure Earth science data, services, and variables are described in a consistent and comprehensive manner and allow for the precise searching of metadata and subsequent retrieval of data, services, and variables.

ECV Keywords hosts a physical, chemical or biological variable or a group of linked variables that critically contributes to the characterization of Earth's climate.

Date Description of Change
2026-10-19 The product version has been added.