Quantifying threats to groundwater resources in the Republic of Maldives Part I: Future rainfall patterns and sea‐level rise
Reserves of fresh groundwater on atoll islands are extremely fragile due to climatic and anthropogenic stresses. Of major concern is the quantity of water to be available in the coming decades under the influence of variable rainfall patterns, rising sea level, environmental conditions, and expected...
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| Veröffentlicht in: | Hydrological processes 2018-04, Vol.32 (9), p.1137-1153 |
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| creator | Alsumaiei, Abdullah A. Bailey, Ryan T. |
| description | Reserves of fresh groundwater on atoll islands are extremely fragile due to climatic and anthropogenic stresses. Of major concern is the quantity of water to be available in the coming decades under the influence of variable rainfall patterns, rising sea level, environmental conditions, and expected population growth that depends on groundwater resources. In this study, a 3‐dimensional numerical modelling approach using the SEAWAT modelling code is used to estimate freshwater lens volume fluctuation for 4 representative islands in the Republic of Maldives in response to long‐term changes in rainfall, sea‐level rise (SLR), and anthropogenic stresses such as groundwater pumping and short‐term impacts from tsunami‐induced marine overwash events. This work is divided into 2 papers. This first paper presents numerical model set‐up and calibration, and the effect of future rainfall patterns and SLR on fresh groundwater reserves. The second paper focuses on marine overwash events. The results of simulated future freshwater lens volume presented in the first study contribute to efficient groundwater resources planning and management for the Maldives in the upcoming decades. Freshwater lenses in small atoll islands (area 1.0 km2) are shown to have less variability to changing patterns with expected reduction in lens volume between 8% and 26% due to SLR. Study results can provide water resource managers with valuable findings for consideration in water security measures. |
| doi_str_mv | 10.1002/hyp.11480 |
| format | Article |
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Of major concern is the quantity of water to be available in the coming decades under the influence of variable rainfall patterns, rising sea level, environmental conditions, and expected population growth that depends on groundwater resources. In this study, a 3‐dimensional numerical modelling approach using the SEAWAT modelling code is used to estimate freshwater lens volume fluctuation for 4 representative islands in the Republic of Maldives in response to long‐term changes in rainfall, sea‐level rise (SLR), and anthropogenic stresses such as groundwater pumping and short‐term impacts from tsunami‐induced marine overwash events. This work is divided into 2 papers. This first paper presents numerical model set‐up and calibration, and the effect of future rainfall patterns and SLR on fresh groundwater reserves. The second paper focuses on marine overwash events. The results of simulated future freshwater lens volume presented in the first study contribute to efficient groundwater resources planning and management for the Maldives in the upcoming decades. Freshwater lenses in small atoll islands (area < 0.6 km2) are shown to have a strong variability trends in the upcoming decades with expected reduction in lens volume between 11% and 36% due to SLR. In contrast, freshwater lenses in larger atoll islands (area > 1.0 km2) are shown to have less variability to changing patterns with expected reduction in lens volume between 8% and 26% due to SLR. Study results can provide water resource managers with valuable findings for consideration in water security measures.</description><identifier>ISSN: 0885-6087</identifier><identifier>EISSN: 1099-1085</identifier><identifier>DOI: 10.1002/hyp.11480</identifier><language>eng</language><publisher>Chichester: Wiley Subscription Services, Inc</publisher><subject>Anthropogenic factors ; Atolls ; climate change ; Computer simulation ; Environmental conditions ; Fresh water ; Freshwater ; Freshwater lenses ; Groundwater ; Groundwater resources ; Human influences ; Inland water environment ; Islands ; Mathematical models ; Modelling ; Numerical models ; Overwash ; Population growth ; Potential resources ; Rain ; Rainfall ; Rainfall patterns ; Reduction ; Reserves ; Resource management ; Sea level ; Sea level rise ; SEAWAT ; Security ; Stresses ; Tsunamis ; Variability ; Water resources ; Water resources management ; Water security</subject><ispartof>Hydrological processes, 2018-04, Vol.32 (9), p.1137-1153</ispartof><rights>Copyright © 2018 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-9148-3954</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fhyp.11480$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fhyp.11480$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Alsumaiei, Abdullah A.</creatorcontrib><creatorcontrib>Bailey, Ryan T.</creatorcontrib><title>Quantifying threats to groundwater resources in the Republic of Maldives Part I: Future rainfall patterns and sea‐level rise</title><title>Hydrological processes</title><description>Reserves of fresh groundwater on atoll islands are extremely fragile due to climatic and anthropogenic stresses. Of major concern is the quantity of water to be available in the coming decades under the influence of variable rainfall patterns, rising sea level, environmental conditions, and expected population growth that depends on groundwater resources. In this study, a 3‐dimensional numerical modelling approach using the SEAWAT modelling code is used to estimate freshwater lens volume fluctuation for 4 representative islands in the Republic of Maldives in response to long‐term changes in rainfall, sea‐level rise (SLR), and anthropogenic stresses such as groundwater pumping and short‐term impacts from tsunami‐induced marine overwash events. This work is divided into 2 papers. This first paper presents numerical model set‐up and calibration, and the effect of future rainfall patterns and SLR on fresh groundwater reserves. The second paper focuses on marine overwash events. The results of simulated future freshwater lens volume presented in the first study contribute to efficient groundwater resources planning and management for the Maldives in the upcoming decades. Freshwater lenses in small atoll islands (area < 0.6 km2) are shown to have a strong variability trends in the upcoming decades with expected reduction in lens volume between 11% and 36% due to SLR. In contrast, freshwater lenses in larger atoll islands (area > 1.0 km2) are shown to have less variability to changing patterns with expected reduction in lens volume between 8% and 26% due to SLR. Study results can provide water resource managers with valuable findings for consideration in water security measures.</description><subject>Anthropogenic factors</subject><subject>Atolls</subject><subject>climate change</subject><subject>Computer simulation</subject><subject>Environmental conditions</subject><subject>Fresh water</subject><subject>Freshwater</subject><subject>Freshwater lenses</subject><subject>Groundwater</subject><subject>Groundwater resources</subject><subject>Human influences</subject><subject>Inland water environment</subject><subject>Islands</subject><subject>Mathematical models</subject><subject>Modelling</subject><subject>Numerical models</subject><subject>Overwash</subject><subject>Population growth</subject><subject>Potential resources</subject><subject>Rain</subject><subject>Rainfall</subject><subject>Rainfall patterns</subject><subject>Reduction</subject><subject>Reserves</subject><subject>Resource management</subject><subject>Sea level</subject><subject>Sea level rise</subject><subject>SEAWAT</subject><subject>Security</subject><subject>Stresses</subject><subject>Tsunamis</subject><subject>Variability</subject><subject>Water resources</subject><subject>Water resources management</subject><subject>Water security</subject><issn>0885-6087</issn><issn>1099-1085</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNotkMtOwzAQRS0EEqWw4A8ssU47jvNw2aGK0kpFPAQLVpETj1tXIQm20yobxCfwjXwJoWU1V5qjO5pDyCWDEQMIx-uuGTEWCTgiAwaTScBAxMdkAELEQQIiPSVnzm0AIAIBA_L51MrKG92ZakX92qL0jvqarmzdVmonPVpq0dWtLdBRU_UM0mds2rw0Ba01vZelMtt-9yitp4trOmt9a5FaaSoty5I20vcllaOyUtSh_Pn6LnGLJbXG4Tk56SGHF_9zSF5nty_TebB8uFtMb5aBDKMEgjzWuYgnnKUCscg517lUSkYgQ54kIBWqIoxSFTGNXKfARJErUFoznSZJHvIhuTr0Nrb-aNH5bNO_VPUnsxA44yFnDHpqfKB2psQua6x5l7bLGGR_brPebbZ3m83fHveB_wIHbnIN</recordid><startdate>20180430</startdate><enddate>20180430</enddate><creator>Alsumaiei, Abdullah A.</creator><creator>Bailey, Ryan T.</creator><general>Wiley Subscription Services, Inc</general><scope>7QH</scope><scope>7ST</scope><scope>7TG</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-9148-3954</orcidid></search><sort><creationdate>20180430</creationdate><title>Quantifying threats to groundwater resources in the Republic of Maldives Part I: Future rainfall patterns and sea‐level rise</title><author>Alsumaiei, Abdullah A. ; Bailey, Ryan T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a2460-b5fb8593178eecb33fbadda40a23660adedc247d41fe3f7018cbd0dff1f766b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Anthropogenic factors</topic><topic>Atolls</topic><topic>climate change</topic><topic>Computer simulation</topic><topic>Environmental conditions</topic><topic>Fresh water</topic><topic>Freshwater</topic><topic>Freshwater lenses</topic><topic>Groundwater</topic><topic>Groundwater resources</topic><topic>Human influences</topic><topic>Inland water environment</topic><topic>Islands</topic><topic>Mathematical models</topic><topic>Modelling</topic><topic>Numerical models</topic><topic>Overwash</topic><topic>Population growth</topic><topic>Potential resources</topic><topic>Rain</topic><topic>Rainfall</topic><topic>Rainfall patterns</topic><topic>Reduction</topic><topic>Reserves</topic><topic>Resource management</topic><topic>Sea level</topic><topic>Sea level rise</topic><topic>SEAWAT</topic><topic>Security</topic><topic>Stresses</topic><topic>Tsunamis</topic><topic>Variability</topic><topic>Water resources</topic><topic>Water resources management</topic><topic>Water security</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alsumaiei, Abdullah A.</creatorcontrib><creatorcontrib>Bailey, Ryan T.</creatorcontrib><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Hydrological processes</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alsumaiei, Abdullah A.</au><au>Bailey, Ryan T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quantifying threats to groundwater resources in the Republic of Maldives Part I: Future rainfall patterns and sea‐level rise</atitle><jtitle>Hydrological processes</jtitle><date>2018-04-30</date><risdate>2018</risdate><volume>32</volume><issue>9</issue><spage>1137</spage><epage>1153</epage><pages>1137-1153</pages><issn>0885-6087</issn><eissn>1099-1085</eissn><abstract>Reserves of fresh groundwater on atoll islands are extremely fragile due to climatic and anthropogenic stresses. 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| subjects | Anthropogenic factors Atolls climate change Computer simulation Environmental conditions Fresh water Freshwater Freshwater lenses Groundwater Groundwater resources Human influences Inland water environment Islands Mathematical models Modelling Numerical models Overwash Population growth Potential resources Rain Rainfall Rainfall patterns Reduction Reserves Resource management Sea level Sea level rise SEAWAT Security Stresses Tsunamis Variability Water resources Water resources management Water security |
| title | Quantifying threats to groundwater resources in the Republic of Maldives Part I: Future rainfall patterns and sea‐level rise |
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