Development of Satellite-based Precipitation Data Delivery System

Global Flood Alert System ver.2 (GFAS-II) released
12th June 2015 / IFNet secretariat

IDI-Japan has been operating "Global Flood Alert System (GFAS)" on the following web site
since April 2006.
[for PC] http://gfas.internationalfloodnetwork.org/gfas-web/

GFAS provides a global flood risk map which shows precipitation return period calculated from
satellite precipitation data of TRMM(*1).
GFAS’s horizontal resolution is about 25 km and we update its data every 24 hours.

On the other hand, JAXA has been delivering another satellite-based precipitation data, GSMaP
(Global Satellite Mapping of Precipitation *2). Its horizontal resolution is about 10km and it is
updated every hour.

With 2016 being the fifteenth year since the data collection of GSMaP was started, IDI-Japan
began to develop the next version of GFAS which uses GSMaP data. And recently, we opened
the following web sites as the trial version for GFAS-II.
[for Smartphone] http://gfas.internationalfloodnetwork.org/n-gfas-web/sp/frmMain.aspx
[for PC] http://gfas.internationalfloodnetwork.org/n-gfas-web/pc/frmMain.aspx

We hope you will take a look at the GFAS-II web sites, and welcome any comments from you.
For usage instructions please refer to the following material.

[Usage of GFAS-II]
http://www.internationalfloodnetwork.org/GFAS%20II/Usage_of_GFAS-II(20150610)_with_JP.pdf

GFAS-II currently has four display languages. If we could have your cooperation in translation, we will try to add display in your country’s language.

Upon request, we can also propose ideas for customization for particular river basins or dam catchment areas.

If you have any questions or comments, please send an e-mail to the following address.
Junko Katayama (Staff in charge of GFAS-II) e-mail : 2bu12@idi.or.jp

[Reference]
*1 TRMM : http://www.eorc.jaxa.jp/TRMM/about/top_e.html
*2 GSMaP : http://sharaku.eorc.jaxa.jp/GSMaP/guide.html