Science Source
Rapid decadal convective precipitation increase over Eurasia during the last three decades of the 20th century
- Defines convective precipitation as localized, short-lived, intense, and sometimes violent
- States there has been little research done to understand the long-term changes in convective precipitation characteristics and their role in precipitation extremes and intensity over extratropical regions
- Shows that the annual convective precipitation total over Eurasia has been increasing astonishingly fast, at a rate of 18.4%/°C, of which 16% is attributable to an increase in convective precipitation occurrence, and 2.4% is attributable to increased daily intensity based on the 35 years of two (combined) historical data sets of 3-hourly synoptic observations and daily precipitation
- Finds the overall increase in mean daily precipitation intensity is mostly due to increased convective precipitation, possibly at the expense of nonconvective precipitation
- Finds that transitional seasons are becoming more summer-like as convective precipitation becomes the dominant precipitation type that has accompanied higher daily extremes and intensity since the late 1980s
- The data demonstrates that increasing convective precipitation and daily extremes appear to be directly linearly associated with higher atmospheric water vapor accompanying a warming climate over northern Eurasia
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