Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0515.1 |
Land-Cover Change and the "Dust Bowl'' Drought in the US Great Plains | |
Hu, Qi1,2; Torres-Alavez, Jose Abraham2; Van den Broeke, Matthew S.2 | |
2018-06-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:12页码:4657-4667 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The North American Dust Bowl drought during the 1930s had devastating environmental and societal impacts. Comprehending the causes of the drought has been an ongoing effort in order to better predict similar droughts and mitigate their impacts. Among the potential causes of the drought are sea surface temperature (SST) anomalies in the tropical Pacific Ocean and strengthened local sinking motion as a feedback to degradation of the land surface condition leading up to and during the drought. Limitations on these causes are the lack of a strong tropical SST anomaly during the drought and lack of local anomaly in moisture supply to undercut the precipitation in the U.S. Great Plains. This study uses high-resolution modeling experiments and quantifies an effect of the particular Great Plains land cover in the 1930s that weakens the southerly moisture flux to the region. This effect lowers the average precipitation, making the Great Plains more susceptible to drought. When drought occurs, the land-cover effect enhances its intensity and prolongs its duration. Results also show that this land-cover effect is comparable in magnitude to the effect of the 1930s large-scale circulation anomaly. Finally, analysis of the relationship of these two effects suggests that while lowering the precipitation must have contributed to the Dust Bowl drought via the 1930s land-cover effect, the initiation of and recovery from that drought would likely result from large-scale circulation changes, either of chaotic origin or resulting from combinations of weak SST anomalies and other forcing. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000450688200004 |
WOS关键词 | CONTERMINOUS UNITED-STATES ; PRECIPITATION ; MODEL ; WRF ; PARAMETERIZATION ; OSCILLATION ; VARIABILITY ; RAINFALL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/20479 |
专题 | 气候变化 |
作者单位 | 1.Univ Nebraska, Sch Nat Resources, Lincoln, NE 68588 USA; 2.Univ Nebraska, Dept Earth & Atmospher Sci, Lincoln, NE 68588 USA |
推荐引用方式 GB/T 7714 | Hu, Qi,Torres-Alavez, Jose Abraham,Van den Broeke, Matthew S.. Land-Cover Change and the "Dust Bowl'' Drought in the US Great Plains[J]. JOURNAL OF CLIMATE,2018,31(12):4657-4667. |
APA | Hu, Qi,Torres-Alavez, Jose Abraham,&Van den Broeke, Matthew S..(2018).Land-Cover Change and the "Dust Bowl'' Drought in the US Great Plains.JOURNAL OF CLIMATE,31(12),4657-4667. |
MLA | Hu, Qi,et al."Land-Cover Change and the "Dust Bowl'' Drought in the US Great Plains".JOURNAL OF CLIMATE 31.12(2018):4657-4667. |
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