Analysis of Spatial and Temporal Variations of the Near-Surface Wind Regime and Their Influencing Factors in the Badain Jaran Desert, China

被引：3

作者：

Hu, Ziying ^{[1
,2
,3
]}

Wang, Guangpeng ^{[1
,2
,3
]}

Liu, Yong ^{[4
]}

Shi, Peijun ^{[1
,2
,3
]}

Zhang, Guoming ^{[1
,2
,3
]}

Liu, Jifu ^{[1
,2
,3
]}

Gu, Yu ^{[1
,2
,3
]}

Huang, Xichen ^{[1
,2
,3
]}

Zhang, Qingyan ^{[1
,2
,3
]}

Han, Xu ^{[1
,2
,3
]}

Wang, Xueling ^{[1
,2
,3
]}

Du, Jiewen ^{[1
,2
,3
]}

Li, Ruoxin ^{[1
,2
,3
]}

Liu, Lianyou ^{[1
,2
,3
]}

机构：

[1] Beijing Normal Univ, Key Lab Environm Change & Nat Disaster, Minist Educ, Beijing 100875, Peoples R China

[2] Beijing Normal Univ, Engn Res Ctr Desertificat & Blown Sand Control, Minist Educ, Beijing 100875, Peoples R China

[3] Beijing Normal Univ, Acad Disaster Risk Sci, Fac Geog Sci, Beijing 100875, Peoples R China

[4] Minist Emergency Management China, Natl Inst Nat Hazards, Beijing 100085, Peoples R China

来源：

ATMOSPHERE | 2022年 / 13卷 / 08期

基金：

中国国家自然科学基金;

关键词：

wind regime; sand-blowing wind; sand drift potential; atmospheric circulation; Badain Jaran Desert; EAST-ASIAN TROUGH; TAKLIMAKAN DESERT; SAND TRANSPORT; GEOMORPHOLOGY; PLATEAU; CLIMATE; IMPACT; DUNES; SPEED;

D O I：

10.3390/atmos13081316

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Wind regime is one of the main natural factors controlling the evolution and distribution of aeolian sand landforms, and sand drift potential (DP) is usually used to study the capacity of aeolian sand transport. The Badain Jaran Desert (BJD) is located where polar cold air frequently enters China. Based on wind data of eight nearby meteorological stations, this research is intended to explore the temporal variation and spatial distribution features of wind speed and DP using linear regression and cumulative anomaly method, and reveal the relationship between atmospheric circulation and wind speed with correlation analysis. We found that the wind speed and frequency of sand-blowing wind in the BJD decreased significantly during 1971-2016, and the wind speed obviously mutated in 1987. The regional wind speed change was affected by the Asian polar vortex, the northern hemisphere polar vortex and the Tibet Plateau circulation. The wind rose of the annual sand-blowing wind in this region was the "acute bimodal" type. Most of the annual wind directions clustered into the W-NW, and the prevailing wind direction was WNW. During 1971-2016, the annual DP, the resultant drift potential (RDP) and the directional variability (PDP/DP) in the desert showed an obvious downtrend, with a "cliff-like" decline in the 1980s and relative stable fluctuation thereafter. The BJD was under a low-energy wind environment with the acute bimodal wind regime. Wind speed, sand-blowing wind frequency and DP were high in the northeast and low in the southwest.

引用

页数：18

共 63 条

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