Connection between Meteorological and Groundwater Drought with Copula-Based Bivariate Frequency Analysis
AbstractGroundwater is a major resource of freshwater that provides additional resilience to agricultural drought during rainfall deficit and also helps in understanding the nature of the hydrological drought risk of an area. This study investigated the response of groundwater drought to meteorologi...
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| Veröffentlicht in: | Journal of hydrologic engineering 2021-07, Vol.26 (7) |
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| description | AbstractGroundwater is a major resource of freshwater that provides additional resilience to agricultural drought during rainfall deficit and also helps in understanding the nature of the hydrological drought risk of an area. This study investigated the response of groundwater drought to meteorological drought and local aquifer properties by considering monthly groundwater levels of a tropical river basin in India. Further, bivariate frequency analysis was carried out for groundwater drought to develop severity–duration–frequency curves by considering the copula function. Long-term monthly groundwater levels were procured, and cluster analysis was performed on groundwater observations to classify the wells. Standardized Groundwater level Index (SGI) was used to evaluate groundwater drought for each cluster, and the same was compared with the meteorological drought of different association periods. The cluster analysis conveyed that wells can be grouped into three clusters optimally. Based on the comparison of groundwater drought with meteorological drought, it was inferred that SGI is well harmonized with the Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI) in humid and semiarid regions, respectively. Analysis of hydraulic diffusivity with the autocorrelation structure of SGI emphasizes the crucial role of aquifer characteristics in local groundwater droughts. The results of joint and conditional return periods obtained from bivariate frequency analysis conveyed that high severity and high-duration droughts were more frequent in the well of Clusters 1 as well as Cluster 3 and comparatively less for the well of Cluster 2. The outcome of the study will be helpful to design proactive drought mitigation and preparedness strategies by considering conjunctive use of surface and groundwater. It also provides a framework to evaluate groundwater drought risk in other parts of the world. |
| doi_str_mv | 10.1061/(ASCE)HE.1943-5584.0002089 |
| format | Article |
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Standardized Groundwater level Index (SGI) was used to evaluate groundwater drought for each cluster, and the same was compared with the meteorological drought of different association periods. The cluster analysis conveyed that wells can be grouped into three clusters optimally. Based on the comparison of groundwater drought with meteorological drought, it was inferred that SGI is well harmonized with the Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI) in humid and semiarid regions, respectively. Analysis of hydraulic diffusivity with the autocorrelation structure of SGI emphasizes the crucial role of aquifer characteristics in local groundwater droughts. The results of joint and conditional return periods obtained from bivariate frequency analysis conveyed that high severity and high-duration droughts were more frequent in the well of Clusters 1 as well as Cluster 3 and comparatively less for the well of Cluster 2. The outcome of the study will be helpful to design proactive drought mitigation and preparedness strategies by considering conjunctive use of surface and groundwater. It also provides a framework to evaluate groundwater drought risk in other parts of the world.</description><identifier>ISSN: 1084-0699</identifier><identifier>EISSN: 1943-5584</identifier><identifier>DOI: 10.1061/(ASCE)HE.1943-5584.0002089</identifier><language>eng</language><publisher>New York: American Society of Civil Engineers</publisher><subject>Agricultural drought ; Aquifer characteristics ; Aquifers ; Atmospheric precipitations ; Autocorrelation ; Bivariate analysis ; Case Studies ; Case Study ; Civil engineering ; Cluster analysis ; Drought ; Environmental risk ; Evaluation ; Evapotranspiration ; Evapotranspiration-precipitation relationships ; Frequency analysis ; Freshwater ; Groundwater ; Groundwater levels ; Hydrologic drought ; Hydrology ; Inland water environment ; Mitigation ; Precipitation ; Rain ; Rainfall ; River basins ; Semi arid areas ; Semiarid zones ; Standardized precipitation index ; Tropical climate</subject><ispartof>Journal of hydrologic engineering, 2021-07, Vol.26 (7)</ispartof><rights>2021 American Society of Civil Engineers</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a432t-2496add06f5fa137e94f93d519f9241d7c4b51b663d768ab97148e7c1e37483e3</citedby><cites>FETCH-LOGICAL-a432t-2496add06f5fa137e94f93d519f9241d7c4b51b663d768ab97148e7c1e37483e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://ascelibrary.org/doi/pdf/10.1061/(ASCE)HE.1943-5584.0002089$$EPDF$$P50$$Gasce$$H</linktopdf><linktohtml>$$Uhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)HE.1943-5584.0002089$$EHTML$$P50$$Gasce$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,76162,76170</link.rule.ids></links><search><creatorcontrib>Pathak, Abhishek A</creatorcontrib><creatorcontrib>Dodamani, B. M</creatorcontrib><title>Connection between Meteorological and Groundwater Drought with Copula-Based Bivariate Frequency Analysis</title><title>Journal of hydrologic engineering</title><description>AbstractGroundwater is a major resource of freshwater that provides additional resilience to agricultural drought during rainfall deficit and also helps in understanding the nature of the hydrological drought risk of an area. This study investigated the response of groundwater drought to meteorological drought and local aquifer properties by considering monthly groundwater levels of a tropical river basin in India. Further, bivariate frequency analysis was carried out for groundwater drought to develop severity–duration–frequency curves by considering the copula function. Long-term monthly groundwater levels were procured, and cluster analysis was performed on groundwater observations to classify the wells. Standardized Groundwater level Index (SGI) was used to evaluate groundwater drought for each cluster, and the same was compared with the meteorological drought of different association periods. The cluster analysis conveyed that wells can be grouped into three clusters optimally. Based on the comparison of groundwater drought with meteorological drought, it was inferred that SGI is well harmonized with the Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI) in humid and semiarid regions, respectively. Analysis of hydraulic diffusivity with the autocorrelation structure of SGI emphasizes the crucial role of aquifer characteristics in local groundwater droughts. The results of joint and conditional return periods obtained from bivariate frequency analysis conveyed that high severity and high-duration droughts were more frequent in the well of Clusters 1 as well as Cluster 3 and comparatively less for the well of Cluster 2. The outcome of the study will be helpful to design proactive drought mitigation and preparedness strategies by considering conjunctive use of surface and groundwater. It also provides a framework to evaluate groundwater drought risk in other parts of the world.</description><subject>Agricultural drought</subject><subject>Aquifer characteristics</subject><subject>Aquifers</subject><subject>Atmospheric precipitations</subject><subject>Autocorrelation</subject><subject>Bivariate analysis</subject><subject>Case Studies</subject><subject>Case Study</subject><subject>Civil engineering</subject><subject>Cluster analysis</subject><subject>Drought</subject><subject>Environmental risk</subject><subject>Evaluation</subject><subject>Evapotranspiration</subject><subject>Evapotranspiration-precipitation relationships</subject><subject>Frequency analysis</subject><subject>Freshwater</subject><subject>Groundwater</subject><subject>Groundwater levels</subject><subject>Hydrologic drought</subject><subject>Hydrology</subject><subject>Inland water environment</subject><subject>Mitigation</subject><subject>Precipitation</subject><subject>Rain</subject><subject>Rainfall</subject><subject>River basins</subject><subject>Semi arid areas</subject><subject>Semiarid zones</subject><subject>Standardized precipitation index</subject><subject>Tropical climate</subject><issn>1084-0699</issn><issn>1943-5584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kF9LwzAUxYsoOKffIeiLPnQmTZo2vm2124SJD-pzyJrbraM2M2kd-_ambOqTcOH-4ZzD5RcE1wSPCObk_nb8muV383xEBKNhHKdshDGOcCpOgsHv7dTPOGUh5kKcBxfObTAmzC-DYJ2ZpoGirUyDltDuABr0DC0Ya2qzqgpVI9VoNLOma_ROtWDRo59X6xbtqnaNMrPtahVOlAONJtWXspUXoamFzw6aYo_Gjar3rnKXwVmpagdXxz4M3qf5WzYPFy-zp2y8CBWjURtGTHClNeZlXCpCExCsFFTHRJQiYkQnBVvGZMk51QlP1VIkhKWQFARowlIKdBjcHHK31vgXXCs3prP-CScjnxIn2JdXPRxUhTXOWSjl1lYfyu4lwbInK2VPVs5z2VOUPUV5JOvN_GBWroC_-B_n_8Zv3bR-AA</recordid><startdate>20210701</startdate><enddate>20210701</enddate><creator>Pathak, Abhishek A</creator><creator>Dodamani, B. 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M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Connection between Meteorological and Groundwater Drought with Copula-Based Bivariate Frequency Analysis</atitle><jtitle>Journal of hydrologic engineering</jtitle><date>2021-07-01</date><risdate>2021</risdate><volume>26</volume><issue>7</issue><issn>1084-0699</issn><eissn>1943-5584</eissn><abstract>AbstractGroundwater is a major resource of freshwater that provides additional resilience to agricultural drought during rainfall deficit and also helps in understanding the nature of the hydrological drought risk of an area. This study investigated the response of groundwater drought to meteorological drought and local aquifer properties by considering monthly groundwater levels of a tropical river basin in India. Further, bivariate frequency analysis was carried out for groundwater drought to develop severity–duration–frequency curves by considering the copula function. Long-term monthly groundwater levels were procured, and cluster analysis was performed on groundwater observations to classify the wells. Standardized Groundwater level Index (SGI) was used to evaluate groundwater drought for each cluster, and the same was compared with the meteorological drought of different association periods. The cluster analysis conveyed that wells can be grouped into three clusters optimally. Based on the comparison of groundwater drought with meteorological drought, it was inferred that SGI is well harmonized with the Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI) in humid and semiarid regions, respectively. Analysis of hydraulic diffusivity with the autocorrelation structure of SGI emphasizes the crucial role of aquifer characteristics in local groundwater droughts. The results of joint and conditional return periods obtained from bivariate frequency analysis conveyed that high severity and high-duration droughts were more frequent in the well of Clusters 1 as well as Cluster 3 and comparatively less for the well of Cluster 2. The outcome of the study will be helpful to design proactive drought mitigation and preparedness strategies by considering conjunctive use of surface and groundwater. It also provides a framework to evaluate groundwater drought risk in other parts of the world.</abstract><cop>New York</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)HE.1943-5584.0002089</doi></addata></record> |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Agricultural drought Aquifer characteristics Aquifers Atmospheric precipitations Autocorrelation Bivariate analysis Case Studies Case Study Civil engineering Cluster analysis Drought Environmental risk Evaluation Evapotranspiration Evapotranspiration-precipitation relationships Frequency analysis Freshwater Groundwater Groundwater levels Hydrologic drought Hydrology Inland water environment Mitigation Precipitation Rain Rainfall River basins Semi arid areas Semiarid zones Standardized precipitation index Tropical climate |
| title | Connection between Meteorological and Groundwater Drought with Copula-Based Bivariate Frequency Analysis |
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