SPEI-Based Spatiotemporal Analysis of Drought in Haihe River Basin from 1961 to 2010
Under the background of climate change, the monthly accumulated precipitation and monthly averaged temperature of 47 meteorological stations in and around Haihe River Basin (HRB) were analyzed using Standardized Precipitation Evapotranspiration Indices (SPEI) to obtain the temporal variability and s...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2016/7658015 |
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| author | Meijian Yang Denghua Yan Yingdong Yu Zhiyong Yang |
| author_facet | Meijian Yang Denghua Yan Yingdong Yu Zhiyong Yang |
| author_sort | Meijian Yang |
| collection | DOAJ |
| description | Under the background of climate change, the monthly accumulated precipitation and monthly averaged temperature of 47 meteorological stations in and around Haihe River Basin (HRB) were analyzed using Standardized Precipitation Evapotranspiration Indices (SPEI) to obtain the temporal variability and spatial distribution of different drought levels during the last 50 years with the support of GIS. The results show that (1) from 1961 to 2010 the drought frequency and degree in annual and seasonal scale are rising and the affecting areas of all degrees of drought have a temporal variability of increasing trend. The ratios that the influencing area of drought, light drought, moderate drought, severe drought, and extreme drought account for the whole HRB area are increasing with gradients of 0.64%/a, 0.18%/a, 0.31%/a, 0.14%/a, and 0.01%/a, respectively, and (2) there is a climate break point which occurred in 1990; after the comparison of the drought happening probability between 1961 and 1990 and between 1991 and 2010, all degrees of drought occurrence probability have a remarkable rising trend, and the drought concentrating regions moved from the north HRB to the central HRB. |
| format | Article |
| id | doaj-art-ea56bdb4289949e4bd38e7cbdff6fce2 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-ea56bdb4289949e4bd38e7cbdff6fce22025-02-03T05:55:16ZengWileyAdvances in Meteorology1687-93091687-93172016-01-01201610.1155/2016/76580157658015SPEI-Based Spatiotemporal Analysis of Drought in Haihe River Basin from 1961 to 2010Meijian Yang0Denghua Yan1Yingdong Yu2Zhiyong Yang3State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research (IWHR), Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research (IWHR), Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research (IWHR), Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research (IWHR), Beijing 100038, ChinaUnder the background of climate change, the monthly accumulated precipitation and monthly averaged temperature of 47 meteorological stations in and around Haihe River Basin (HRB) were analyzed using Standardized Precipitation Evapotranspiration Indices (SPEI) to obtain the temporal variability and spatial distribution of different drought levels during the last 50 years with the support of GIS. The results show that (1) from 1961 to 2010 the drought frequency and degree in annual and seasonal scale are rising and the affecting areas of all degrees of drought have a temporal variability of increasing trend. The ratios that the influencing area of drought, light drought, moderate drought, severe drought, and extreme drought account for the whole HRB area are increasing with gradients of 0.64%/a, 0.18%/a, 0.31%/a, 0.14%/a, and 0.01%/a, respectively, and (2) there is a climate break point which occurred in 1990; after the comparison of the drought happening probability between 1961 and 1990 and between 1991 and 2010, all degrees of drought occurrence probability have a remarkable rising trend, and the drought concentrating regions moved from the north HRB to the central HRB.http://dx.doi.org/10.1155/2016/7658015 |
| spellingShingle | Meijian Yang Denghua Yan Yingdong Yu Zhiyong Yang SPEI-Based Spatiotemporal Analysis of Drought in Haihe River Basin from 1961 to 2010 Advances in Meteorology |
| title | SPEI-Based Spatiotemporal Analysis of Drought in Haihe River Basin from 1961 to 2010 |
| title_full | SPEI-Based Spatiotemporal Analysis of Drought in Haihe River Basin from 1961 to 2010 |
| title_fullStr | SPEI-Based Spatiotemporal Analysis of Drought in Haihe River Basin from 1961 to 2010 |
| title_full_unstemmed | SPEI-Based Spatiotemporal Analysis of Drought in Haihe River Basin from 1961 to 2010 |
| title_short | SPEI-Based Spatiotemporal Analysis of Drought in Haihe River Basin from 1961 to 2010 |
| title_sort | spei based spatiotemporal analysis of drought in haihe river basin from 1961 to 2010 |
| url | http://dx.doi.org/10.1155/2016/7658015 |
| work_keys_str_mv | AT meijianyang speibasedspatiotemporalanalysisofdroughtinhaiheriverbasinfrom1961to2010 AT denghuayan speibasedspatiotemporalanalysisofdroughtinhaiheriverbasinfrom1961to2010 AT yingdongyu speibasedspatiotemporalanalysisofdroughtinhaiheriverbasinfrom1961to2010 AT zhiyongyang speibasedspatiotemporalanalysisofdroughtinhaiheriverbasinfrom1961to2010 |