期刊
GEOPHYSICAL RESEARCH LETTERS
卷 46, 期 13, 页码 7624-7633出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2018GL081795
关键词
-
资金
- National Science Foundation of China [41571200, 41672167]
- Taishan Scholars Program of Shandong [tsqn201812102]
- Federal Ministry of Education and Research of Germany (BMBF) as part of the CAME II project [03G0863A]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB26000000]
- Youth Innovation Promotion Association CAS [2014385, 2012295]
The evolution and driving factors underlying dust activity in central Asia remain controversial, particularly in its effects on downwind regions. We present a Holocene dust storm activity record retrieved from the Tarim Basin (TB) and perform linear and nonlinear analyses on dust records from the TB and the Greenland areas. The results indicate a similar response of dust activities to total solar irradiance in both areas, and an outbreak of dust storms in the TB at similar to 3.5 kyr BP. We suggest that decreasing temperature in high northern latitudes, aided by solar activity change, reached a critical threshold near similar to 3.5 kyr BP. The resulting steepening of the meridional temperature gradient would have facilitated strengthening and southward shift of the Northern Hemisphere westerly jet, leading to the outbreak of dust storms through intensification of low level wind intensity and prolonged spring conditions in the Asian interior.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据