IDI-Japan had been operating “Global Flood Alert System (GFAS)” on the website since April 2006 and started operations of GFASⅡ(ver.2.0) in June 2015 which additionally utilized GSMaP_NRT*, the precipitation obtained by analysis of observation data from multiple satellites.
GFASⅡ provides precipitation data observed by satellites using Global Grid (with latitude and longitude of 0.1 degree width, which is approximately 11 km in equatorial regions), conducts risk assessment by occurrence probability (return period) in each grid, and updates the data hourly in the map.
Japan Aerospace Exploration Agency (JAXA) started delivering GSMaP_NOW in 2015 which provides precipitation in almost real time. The new version of GFASⅡ(ver.2.1) utilizes the data of GSMaP_NOW and can show a global risk map of possible rain related disasters about 1 hour late.
Major Improvements of GFASⅡ(ver.2.1)
✓Utilization of GSMaP_NOW
✓Updating probability of precipitation occurrence (probability distribution form):
For the precipitation in the past, data by the latest JAXA products, RNLver6 and MVKver6 are used as well as precipitation data of the recent 2 years and data of the past 16 years.
✓Extension of movie display time
✓Burmese now available:
You can choose from six languages; English, Spanish, German, Vietnamese, Burmese and Japanese.