Objective Identification Method of Cold-Front Precipitation in Winter Half Years over East Asia

Figure 4

The cold wave weather process from 00:00 UTC on January 22 to 00:00 UTC on January 23, 2016. (a–c) The distributions of total precipitation and snowfall at 00:00 UTC on January 22, 12:00 UTC on January 22, and 00:00 UTC on January 23, respectively. (d–f) The cold-front precipitation and cold-front snowfall at 00:00 UTC on January 22, 12:00 UTC on January 22, and 00:00 UTC on January 23, respectively. The contour is the sea-level pressure at an interval of 4 hPa, shading is precipitation (unit: mm), the dotted area is snowfall (unit: mm), and the blue line indicates the objectively identified cold front.

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