Spatiotemporal Variation in the Meteorological Drought Comprehensive Index in the Beijing-Tianjin-Hebei Region during 1961-2023
文献类型:期刊论文
作者 | Du, Wupeng1; Hao, Zhixin2,3; Bai, Mengxin1; Zhang, Liang2,3; Zhang, Chengpeng4; Wang, Zirui1; Xing, Pei1 |
刊名 | WATER |
出版日期 | 2023-12-01 |
卷号 | 15期号:24页码:16 |
关键词 | Beijing-Tianjin-Hebei region meteorological drought comprehensive index May-June drought spatiotemporal characteristics return period |
DOI | 10.3390/w15244230 |
通讯作者 | Bai, Mengxin(bmengxin@163.com) ; Xing, Pei(20042143xp@163.com) |
英文摘要 | It is crucial to investigate the characteristics of meteorological drought in the Beijing-Tianjin-Hebei (BTH) region to improve the accuracy of agriculture and water resource monitoring and management. In this study, using instrumental observation data from 85 meteorological stations in the BTH region during 1961-2023 derived from the National Meteorological Information Center, we first calculated the meteorological drought comprehensive index (MCI) and analyzed the spatiotemporal characteristics of the MCI. In the BTH region, the MCI intensity from May to June was the most severe in the intraseasonal variation. The trend of the decreasing drought intensity in May-June has occurred for the past 60 years. The southern region in the BTH region was more likely to experience droughts. Next, the spatial patterns of the top two EOF modes of the May-June MCI were depicted. The primary spatial pattern of the BTH, which was characterized by consistent changes in the MCI throughout the entire BTH region, could be represented by the first mode's R2 of 69.01%. Then, we compared the spatial pattern of the MCI intensity under different return periods. Using the May-June MCI of 1961-2023, the drought intensity gradually increased from northwest to southeast for the 10-, 20-, and 50-year return periods. However, the drought intensity decreased and then increased from northwest to southeast based on the 1991-2023 MCI. Notably, a 20-year return period of severe drought affected Beijing and northern Hebei in 2023. Finally, we discussed the linkages of drought in the BTH region and atmospheric circulation/sea surface temperature (SST) anomalies, which were calculated using the Pearson correlation coefficient and wavelet coherence. We suggest that the MCI variations in the BTH region may be related to the SST anomalies of the Indian Ocean in 1961-1990 and the Pacific Ocean in 1991-2023, respectively. The abovementioned studies have enlightened us to focus on predicting the Pacific SST for drought, which will facilitate agricultural production and water resource management in the BTH region. |
WOS关键词 | SUMMER PRECIPITATION ; NORTH CHINA ; VARIABILITY |
资助项目 | National Natural Science Foundation of China |
WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
语种 | 英语 |
出版者 | MDPI |
WOS记录号 | WOS:001131138200001 |
资助机构 | National Natural Science Foundation of China |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/201770] |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Bai, Mengxin; Xing, Pei |
作者单位 | 1.Beijing Municipal Climate Ctr, Beijing Meteorol Serv, Beijing 100089, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Minist Nat Resources, Land Consolidat & Rehabil Ctr, Beijing 100035, Peoples R China |
推荐引用方式 GB/T 7714 | Du, Wupeng,Hao, Zhixin,Bai, Mengxin,et al. Spatiotemporal Variation in the Meteorological Drought Comprehensive Index in the Beijing-Tianjin-Hebei Region during 1961-2023[J]. WATER,2023,15(24):16. |
APA | Du, Wupeng.,Hao, Zhixin.,Bai, Mengxin.,Zhang, Liang.,Zhang, Chengpeng.,...&Xing, Pei.(2023).Spatiotemporal Variation in the Meteorological Drought Comprehensive Index in the Beijing-Tianjin-Hebei Region during 1961-2023.WATER,15(24),16. |
MLA | Du, Wupeng,et al."Spatiotemporal Variation in the Meteorological Drought Comprehensive Index in the Beijing-Tianjin-Hebei Region during 1961-2023".WATER 15.24(2023):16. |
入库方式: OAI收割
来源:地理科学与资源研究所
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