What's New

Topics 2020

March 2020

Mar. 9, 2020 Updated
Global Extreme Heavy Rainfall and Drought detected by GSMaP ∼ "JAXA Climate Rainfall Watch" website is now available∼

JAXA has been addressing global precipitation-related issues under the Global Precipitation Measurement (GPM) Mission by utilizing the 3D precipitation product "Dual-frequency Precipitation Radar (DPR)" onboard GPM core observatory and multi-satellite precipitation product "Global Satellite Mapping of Precipitation (GSMaP)".
We are pleased to inform that the new website called "JAXA Climate Rainfall Watch" is now available, which provides information about extreme heavy rainfall and drought over the world (Fig. 1). You can easily monitor global extreme weather and climate by displaying accumulated rainfall in some temporal scale (daily, pentad, weekly, 10-days and monthly), indices related to extreme heavy rainfall (percentiles*) and drought (SPI**). A specified date after April 2000 can be selected.

Fig.1 Graphical User Interface of the "JAXA Climate Rainfall Watch" website
(Monthly precipitation in February 2020)

February 2020

Feb. 18, 2020 Updated
Massive bushfires in Australia seen from Space

Australia has naturally faced many droughts and bushfires, but conditions have been unusually severe this time. Sometime around September 2019, the bushfires continuously occurred around the state of New South Wales in southeast Australia. The fires had been spreading on a larger scale, and a number of massive fires had merged into a "Mega Fire" that was out of control. The fires are unlikely to end entirely even at the end of January 2020.

Figure 1 (left) Standardized Precipitation Index (SPI) in Australia calculated by GSMaP precipitation amount in a month (December 2019), (right)SPI calculated by GSMaP precipitation amount in three months (October-December 2019) in a same way. The relations between SPI value, the range of drought and frequency of phenomenon were classified by WMO (2012). In case SPI value becomes "-1.5 to -1.99", it indicates the situation of "Severe dryness" which happens "once in 20 years". In case SPI value becomes less than -2.0, it corresponds "Extreme dryness" which happens "once in 50 years". These condition shows the possibility of severe drought occurrence which leads to a big social impact.

Updates 2020