2.3.2. FY-2G QPE

FY-2G is one of the third batches of operational geostationary satellites in the FY-2 series, and was launched on 31 December 2014. The sub-satellite point of FY-2G changed from 99.5◦E to 105◦E, and finally became 99.2◦E over the equator in April, 2018. FY-2G is the latest satellite to have Level 2 and Level 3 products since 2015. FY-2G has carried the radiometer with the best performance in operational satellites in the FY-2 series to date. Compared with satellites in the second batch, such as FY-2E, FY-2G has the ability to scan specific areas with a more flexible and higher temporal resolution. It plays a significant role in China's meteorological disaster monitoring, early warning, prevention, and reduction.

The QPE products in FY-2E and FY-2G have the same temporal scale and spatial resolution. However, the di fferences in the onboard sensors and fusion algorithms of FY-2E and FY-2G satellites lead to di fferences not only in the accuracy of precipitation estimates, but also in the numerical range and distribution. The QPE products can be downloaded from the National Satellite Meteorological Centre (NSMC, www.nsmc.org.cn).
