文献类型：期刊文献

英文题名：Moisture Transport and Contribution to the Continental Precipitation

作者：Yang, Yazhu[1,2];Liu, Chunlei[1,2];Ou, Niansen[1,2];Liao, Xiaoqing[1,2];Cao, Ning[1,2];Chen, Ni[1,2];Jin, Liang[1,2];Zheng, Rong[1,2];Yang, Ke[1,2];Su, Qianye[1,2]

机构：[1]Guangdong Ocean Univ, South China Sea Inst Marine Meteorol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, CMA GDOU Joint Lab Marine Meteorol, Zhanjiang 524088, Peoples R China

年份：2022

卷号：13

期号：10

外文期刊名：ATMOSPHERE

收录：SCI-EXPANDED(收录号：WOS:000872302800001)、、EI(收录号：20224413013990)、Scopus(收录号：2-s2.0-85140440258)、WOS

基金：This research was jointly funded by the National Natural Science Foundation of China (42075036, 42275017); Fujian Key Laboratory of Severe Weather (2021KFKT02); the scientific research start-up grant of Guangdong Ocean University (R20001); the Postgraduate Education Innovation Project of Guangdong Ocean University (202144, 202253).

语种：英文

外文关键词：moisture transport; convergence; precipitation; trend

外文摘要：Understanding the water cycle change under a warming climate is essential, particularly the ocean to land moisture transport, which affects the precipitation over land areas and influences society and the ecosystem. Using ERA5 data from 1988 to 2020, the time series of moisture transport and the trend across the boundary of each continent, including Eurasia, Africa, North America, South America, Antarctic, Australia, and Greenland, have been investigated. The inflow and outflow sections of the moisture have been identified for each continent. The trends of moisture convergence over Eurasia, Africa, North America, and Antarctic are all positive, with the values of 2.59 +/- 3.12, 2.60 +/- 3.17, 12.98 +/- 2.28, and 0.32 +/- 0.47 (in 10(6) kg/s/decade), respectively, but only the trend over North America is statistically significant at a 0.1 significance level. The moisture convergence trend of -0.59 +/- 3.63 (in 10(6) kg/s/decade) over South America is negative but insignificant. The positive trend of 0.10 +/- 0.35 (in 10(6) kg/s/decade) over Greenland is very weak. The precipitation, evaporation, and moisture convergence are well balanced at middle and low latitudes, but the combination of moisture convergence and evaporation is systematically lower than the precipitation over Antarctic and Greenland. Contributions of evaporation and moisture convergence (or transport) to the continental precipitation vary with the continent, but the moisture convergence dominates the precipitation variability over all continents, and the significant correlation coefficients between the anomaly time series of continental mean moisture convergence and precipitation are higher than 0.8 in all continents.