GSMaP | Global Satellite Mapping of Precipitation

GSMaP: Global Satellite Mapping of Precipitation

Top>Overview of GSMaP

Overview of GSMaP

Updated June 2009

This web site is a introductory guide to view and use GSMaP (Global Satellite Mapping of Precipitation) product.

a. About GSMaP
The GSMaP project was promoted for a study "Production of a high-precision, high-resolution global precipitation map using satellite data," sponsored by Core Research for Evolutional Science and Technology (CREST) of the Japan Science and Technology Agency (JST) during 2002-2007. Since 2007, GSMaP project activities are promoted by the JAXA Precipitation Measuring Mission (PMM) Science Team.

GSMaP Project Overview

Presentation at 7th GPM International Planning Workshop (Dec. 2007)
pdf/gpm_gsmap.pdf
ppt/gpm_gsmap.ppt

Presentation at JST-CREST Symposium (Oct. 2006)
pdf/gsmap_overview_e_r2.pdf
ppt/gsmap_overview_e_r2.ppt

b. Download of GSMaP Product

GSMaP Data Archive Center

Users can download surface rainfall products of the GSMaP Standard (post-processing, 1998-2006) version here!

JAXA Global Rainfall Watch

JAXA/EORC offers hourly global rainfall maps in near real time (about four hours after observation) using algorithms developed by the GSMaP Project. Please see here for detail. When you want to use the near real time product,

c. Data policy
PLEASE NOTE that JAXA basically restricted re-distribution of any images and data which we produced and put on our www/ftp sites.
Please check JAXA Site Policy for details from here, or contact to the TRMM Real-time Office if you have any questions.

Please contact the TRMM realtime office in advance if you want to distribute images or data from this site to many people, such as in a pamphlet or internet. Although JAXA/EORC has taken every care to manage the current site, JAXA assumes no responsibility regarding the safety of the contents of the Site or the reliability of information provided on the Site. JAXA is not responsible to you for any damage that may be caused by the use of the Site and/or the information on the Site.

d. Citation
Anyone wishing to publish any results using the data from the GSMaP should clearly acknowledge the ownership of the data in the publication. For example,
'The GSMaP Project was sponsored by JST-CREST and is promoted by the JAXA Precipitation Measuring Mission (PMM) Science Team, and the GSMaP products were distributed by the Earth Observation Research Center, Japan Aerospace Exploration Agency.
If you have benefited from GSMaP rainfall products, please cite the major papers listed below:

K. Okamoto, T. Iguchi, N. Takahashi, K. Iwanami and T. Ushio, 2005: The Global Satellite Mapping of Precipitation (GSMaP) project, 25th IGARSS Proceedings, pp. 3414-3416.

T. Kubota, S. Shige, H. Hashizume, K. Aonashi, N. Takahashi, S. Seto, M. Hirose, Y. N. Takayabu, K. Nakagawa, K. Iwanami, T. Ushio, M. Kachi, and K. Okamoto, 2007: Global Precipitation Map using Satelliteborne Microwave Radiometers by the GSMaP Project : Production and Validation, IEEE Trans. Geosci. Remote Sens., Vol. 45, No. 7, pp.2259-2275.

K. Aonashi, J. Awaka, M. Hirose, T. Kozu, T. Kubota, G. Liu, S. Shige, S. Kida, S. Seto, N. Takahashi, and Y. N. Takayabu, 2009: GSMaP passive, microwave precipitation retrieval algorithm: Algorithm description and validation. J. Meteor. Soc. Japan, 87A, 119-136.

T. Ushio, T. Kubota, S. Shige, K. Okamoto, K. Aonashi, T. Inoue, N. Takahashi, T. Iguchi, M. Kachi, R. Oki, T. Morimoto, and Z. Kawasaki, 2009: A Kalman filter approach to the Global Satellite Mapping of Precipitation (GSMaP) from combined passive microwave and infrared radiometric data. J. Meteor. Soc. Japan, 87A, 137-151.

along with any of the papers listed at "Publications" page that you have benefited from.

e. Related Universities and Institutes
Japan Aerospace Exploration Agency (JAXA)
Meteorological Research Institute, Japan Meteorological Agency
Osaka Prefecture University
Osaka University
Kyoto University
Tottori University of Environmental Studies
National Institute of Information and Communications Technology
University of Tokyo
Tokai University
Shimane University
National Research Institute for Earth Science and Disaster Prevention
Tokyo Metropolitan University

f. Contact point
Please contact us at the TRMM Real-time Office if you have any questions about this web site.

TRMM Real-Time Office
Earth Observation Research Center,
Japan Aerospace Exploration Agency
2-1-1, Sengen, Tsukuba-city, Ibaraki 305-8505, Japan

Fax: +81-29-868-2961

JAXA/EORCJapan Aerospace Exploration Agency, Earth Observation Research Center