Distinct effects of winter monsoon and westerly circulation on dust aerosol transport over East Asia
نویسندگان
چکیده
The transport of dust aerosol in East Asia is affected by the Asian winter monsoon (EAWM) and westerly circulation both for modern geological periods. There are obvious seasonal changes intensity range EAWM jet; however, their impacts relative contributions to transmission still unclear. In this study, we use Regional Climate Model 4 (RegCM4) simulate cycle under present conditions, assessing effects jet on transport. results show that at upper level mainly transported circulation, while lower layer EAWM. March, located south side Tibet Plateau, high-level transmitted eastward northern Pacific. Low-level southeastern China with influence With northward shift jet, control winds increases May correlations weakened. contrary, impact enhanced. Due strengthened interaction between EAWM, they can affect middle-level transmission. effect sensitive particle sizes. Under action fine-grained far away, coarse-grained limited vicinity source area. Once carried layer, different sizes similar.
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ژورنال
عنوان ژورنال: Theoretical and Applied Climatology
سال: 2021
ISSN: ['1434-4483', '0177-798X']
DOI: https://doi.org/10.1007/s00704-021-03579-z