Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China
The analysis of the spatiotemporal trends of precipitation and drought is relevant for the future development and sustainable management of water resources in a given region. In this study, precipitation and Standardized Precipitation Index (SPI) trends were analyzed through applying linear regressi...
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| Main Authors: | , , , , |
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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/10.1155/2015/215840 |
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| _version_ | 1832549979873345536 |
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| author | Yuhu Zhang Wanyuan Cai Qiuhua Chen Yunjun Yao Kaili Liu |
| author_facet | Yuhu Zhang Wanyuan Cai Qiuhua Chen Yunjun Yao Kaili Liu |
| author_sort | Yuhu Zhang |
| collection | DOAJ |
| description | The analysis of the spatiotemporal trends of precipitation and drought is relevant for the future development and sustainable management of water resources in a given region. In this study, precipitation and Standardized Precipitation Index (SPI) trends were analyzed through applying linear regression, Mann–Kendall, and Spearman’s Rho tests at the 5% significance level. For this goal, meteorological data from 9 meteorological stations in and around Aksu Basin during the period 1960–2010 was used, and two main annual drought periods were detected (1978-1979 and 1983–1986), while the extremely dry years were recorded in 1975 and 1985 at almost all of the stations. The monthly analysis of precipitation series indicates that all stations had increasing trend in July, October, and December, while both increasing and decreasing trends were found in other months. For the seasonal scale, precipitation series had increasing trends in summer and winter. 33% of the stations had the decreasing trend on precipitation in the spring series, and it was 11% in the autumn. At the same time, the SPI-12 values of all stations had the increasing trend. The significant trends were detected at Aheqi, Baicheng, Keping, and Kuche stations. |
| format | Article |
| id | doaj-art-2027ed18a9ef4cb092a02d7868868d19 |
| 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-2027ed18a9ef4cb092a02d7868868d192025-02-03T06:07:56ZengWileyAdvances in Meteorology1687-93091687-93172015-01-01201510.1155/2015/215840215840Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest ChinaYuhu Zhang0Wanyuan Cai1Qiuhua Chen2Yunjun Yao3Kaili Liu4College 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, ChinaSchool of Mathematical Sciences, Capital Normal University, Beijing 100048, ChinaThe analysis of the spatiotemporal trends of precipitation and drought is relevant for the future development and sustainable management of water resources in a given region. In this study, precipitation and Standardized Precipitation Index (SPI) trends were analyzed through applying linear regression, Mann–Kendall, and Spearman’s Rho tests at the 5% significance level. For this goal, meteorological data from 9 meteorological stations in and around Aksu Basin during the period 1960–2010 was used, and two main annual drought periods were detected (1978-1979 and 1983–1986), while the extremely dry years were recorded in 1975 and 1985 at almost all of the stations. The monthly analysis of precipitation series indicates that all stations had increasing trend in July, October, and December, while both increasing and decreasing trends were found in other months. For the seasonal scale, precipitation series had increasing trends in summer and winter. 33% of the stations had the decreasing trend on precipitation in the spring series, and it was 11% in the autumn. At the same time, the SPI-12 values of all stations had the increasing trend. The significant trends were detected at Aheqi, Baicheng, Keping, and Kuche stations.http://dx.doi.org/10.1155/2015/215840 |
| spellingShingle | Yuhu Zhang Wanyuan Cai Qiuhua Chen Yunjun Yao Kaili Liu Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China Advances in Meteorology |
| title | Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China |
| title_full | Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China |
| title_fullStr | Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China |
| title_full_unstemmed | Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China |
| title_short | Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China |
| title_sort | analysis of changes in precipitation and drought in aksu river basin northwest china |
| url | http://dx.doi.org/10.1155/2015/215840 |
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