Spatial Patterns and Temporal Variability of Drought in Beijing-Tianjin-Hebei Metropolitan Areas in China
Drought identification and assessment are essential for regional water resources management. In this paper, the spatiotemporal characteristics of drought were evaluated based on monthly precipitation data from 33 synoptic stations during the period of 1960–2010. The percent of normal precipitation w...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2015/289471 |
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| author | Wanyuan Cai Yuhu Zhang Qiuhua Chen Yunjun Yao |
| author_facet | Wanyuan Cai Yuhu Zhang Qiuhua Chen Yunjun Yao |
| author_sort | Wanyuan Cai |
| collection | DOAJ |
| description | Drought identification and assessment are essential for regional water resources management. In this paper, the spatiotemporal characteristics of drought were evaluated based on monthly precipitation data from 33 synoptic stations during the period of 1960–2010. The percent of normal precipitation was applied to illustrate the driest years in Beijing-Tianjin-Hebei metropolitan areas (BTHMA) (1965, 1997, and 2002). The modified Reconnaissance Drought Index (RDI) was applied to capture the drought patterns and to estimate the drought severity at 33 meteorological stations. Agglomerative hierarchical cluster analysis (AHCA) and principal component analysis (PCA) were used to identify three different drought subregions R1, R2, and R3 based on the monthly precipitation values in BTHMA, which is located in southeast, north, and south of BTHMA, respectively. The year 1965 was the driest and 1964 was the wettest during the observed period. The characteristics of drought were analyzed in terms of the temporal evolution of the RDI-12 values and the frequency of drought for the three identified regions. The percentage of years characterized by drought was 13.73% for R1, 16.50% for R2, and 15.53% for R3. 66.91% of drought belongs to the near normal drought category. The obtained results can aid to improve water resources management in the area. |
| format | Article |
| id | doaj-art-da3f7149a6d24de28200a1b84af61f68 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-da3f7149a6d24de28200a1b84af61f682025-02-03T01:33:08ZengWileyAdvances in Meteorology1687-93091687-93172015-01-01201510.1155/2015/289471289471Spatial Patterns and Temporal Variability of Drought in Beijing-Tianjin-Hebei Metropolitan Areas in ChinaWanyuan Cai0Yuhu Zhang1Qiuhua Chen2Yunjun Yao3College of Resources Environment & Tourism, Capital Normal University, Beijing 100048, ChinaCollege of Resources Environment & Tourism, Capital Normal University, Beijing 100048, ChinaSchool of Mathematical Sciences, Capital Normal University, Beijing 100048, ChinaState Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaDrought identification and assessment are essential for regional water resources management. In this paper, the spatiotemporal characteristics of drought were evaluated based on monthly precipitation data from 33 synoptic stations during the period of 1960–2010. The percent of normal precipitation was applied to illustrate the driest years in Beijing-Tianjin-Hebei metropolitan areas (BTHMA) (1965, 1997, and 2002). The modified Reconnaissance Drought Index (RDI) was applied to capture the drought patterns and to estimate the drought severity at 33 meteorological stations. Agglomerative hierarchical cluster analysis (AHCA) and principal component analysis (PCA) were used to identify three different drought subregions R1, R2, and R3 based on the monthly precipitation values in BTHMA, which is located in southeast, north, and south of BTHMA, respectively. The year 1965 was the driest and 1964 was the wettest during the observed period. The characteristics of drought were analyzed in terms of the temporal evolution of the RDI-12 values and the frequency of drought for the three identified regions. The percentage of years characterized by drought was 13.73% for R1, 16.50% for R2, and 15.53% for R3. 66.91% of drought belongs to the near normal drought category. The obtained results can aid to improve water resources management in the area.http://dx.doi.org/10.1155/2015/289471 |
| spellingShingle | Wanyuan Cai Yuhu Zhang Qiuhua Chen Yunjun Yao Spatial Patterns and Temporal Variability of Drought in Beijing-Tianjin-Hebei Metropolitan Areas in China Advances in Meteorology |
| title | Spatial Patterns and Temporal Variability of Drought in Beijing-Tianjin-Hebei Metropolitan Areas in China |
| title_full | Spatial Patterns and Temporal Variability of Drought in Beijing-Tianjin-Hebei Metropolitan Areas in China |
| title_fullStr | Spatial Patterns and Temporal Variability of Drought in Beijing-Tianjin-Hebei Metropolitan Areas in China |
| title_full_unstemmed | Spatial Patterns and Temporal Variability of Drought in Beijing-Tianjin-Hebei Metropolitan Areas in China |
| title_short | Spatial Patterns and Temporal Variability of Drought in Beijing-Tianjin-Hebei Metropolitan Areas in China |
| title_sort | spatial patterns and temporal variability of drought in beijing tianjin hebei metropolitan areas in china |
| url | http://dx.doi.org/10.1155/2015/289471 |
| work_keys_str_mv | AT wanyuancai spatialpatternsandtemporalvariabilityofdroughtinbeijingtianjinhebeimetropolitanareasinchina AT yuhuzhang spatialpatternsandtemporalvariabilityofdroughtinbeijingtianjinhebeimetropolitanareasinchina AT qiuhuachen spatialpatternsandtemporalvariabilityofdroughtinbeijingtianjinhebeimetropolitanareasinchina AT yunjunyao spatialpatternsandtemporalvariabilityofdroughtinbeijingtianjinhebeimetropolitanareasinchina |