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Why super sandstorm 2021 in North China?
National Science Review ( IF 20.6 ) Pub Date : 2021-09-02 , DOI: 10.1093/nsr/nwab165 Zhicong Yin 1 , Yu Wan 1 , Yijia Zhang 1 , Huijun Wang 1
National Science Review ( IF 20.6 ) Pub Date : 2021-09-02 , DOI: 10.1093/nsr/nwab165 Zhicong Yin 1 , Yu Wan 1 , Yijia Zhang 1 , Huijun Wang 1
Affiliation
Severe sandstorms reoccurred in the spring of 2021 after an absence for more than 10 years in North China. The dust source area, located in Mongolia, suffered destructive cooling and warming in early and late winter, which loosened the land. A lack of precipitation, excessive snow melt and strong evaporation resulted in dry soil and exiguous spring vegetation. A super-strong Mongolian cyclone developed on the bare and loose ground, and easily blew and transported large amounts of sand particles into North China. Furthermore, top-ranking anomalies (sea ice shift in the Barents and Kara Sea, and sea surface temperatures in the east Pacific and northwest Atlantic) were found to induce the aforementioned tremendous climate anomalies in the dust source area. Analyses, based on large-ensemble Coupled Model Intercomparison Project Phase 6, yield results identical to the reanalysis data. Thus, the climate variabilities at different latitudes and synoptic disturbances jointly facilitated the strongest spring sandstorm over the last decade.
更新日期：2021-09-02
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