The precision of rain gauge data is high and the spatial distribution of radar-explored data is applicable (reasonable).

雨量站实测点雨量精度高，雷达站测的数据在空间上分布合理。

youdao

"It would be most useful for countries where they don't have much rain gauge data or weather radar - in Africa for instance, they do have mobile phones, at least in areas where the population density is high enough, " he told BBC News.

BBC: Rain tracked with mobile network