Groundwater recharge and age-depth profiles of intensively exploited groundwater resources in northwest India
Intensive irrigation in northwest India has led to growing concerns over the sustainability of current and future groundwater ion. Environmental tracers and measurements of groundwater residence times can help quantify the renewal processes. Results from 16 paired locations show the interquartile ra...
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| Veröffentlicht in: | Geophysical research letters 2015-09, Vol.42 (18), p.7554-7562 |
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| creator | Lapworth, D. J. MacDonald, A. M. Krishan, G. Rao, M. S. Gooddy, D. C. Darling, W. G. |
| description | Intensive irrigation in northwest India has led to growing concerns over the sustainability of current and future groundwater ion. Environmental tracers and measurements of groundwater residence times can help quantify the renewal processes. Results from 16 paired locations show the interquartile ranges for residence times in shallow alluvial groundwater (8–50 m deep) to be 1–50 years and significantly less than those from deeper groundwater (76–160 m deep) at 40–170 years. The widespread occurrence of modern tracers in deep groundwater (>60% of sites had >10% modern recharge) suggests that there is low regional aquifer anisotropy and that deep aquifers are recharged by a significant component of recent recharge via vertical leakage. Stable isotope and noble gas results at all depths conform to modern meteoric sources and annual average temperatures, with no evidence of significant regional recharge from canal leakage in this study area close to the Himalayas.
Key Points
Tracers reveal low regional anisotropy in the sedimentary aquifer system of NW India
Local meteoric recharge sources dominate in both shallow and deep aquifers
Evidence of enhanced modern recharge at depth due to intensive ion |
| doi_str_mv | 10.1002/2015GL065798 |
| format | Article |
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Key Points
Tracers reveal low regional anisotropy in the sedimentary aquifer system of NW India
Local meteoric recharge sources dominate in both shallow and deep aquifers
Evidence of enhanced modern recharge at depth due to intensive ion</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2015GL065798</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Age ; Anisotropy ; Aquifers ; Area ; Climate ; Depth ; Environmental tracers ; Exploitation ; Groundwater ; Groundwater recharge ; Groundwater resources ; India ; Irrigation ; Isotopes ; Leakage ; Locations (working) ; Northwest ; over exploitation ; Profiles ; Rare gases ; recharge ; Recharging ; Regional ; Renewal ; Resource exploitation ; Stable isotopes ; Sustainability ; Tracers ; Water resources</subject><ispartof>Geophysical research letters, 2015-09, Vol.42 (18), p.7554-7562</ispartof><rights>2015. The Authors.</rights><rights>2015. American Geophysical Union. All Rights Reserved.</rights><rights>2015. This article is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4996-7a4cc0424b683eee6e8944445c0c07f1d8469d3ed92671d04034db3d80a3b4623</citedby><cites>FETCH-LOGICAL-a4996-7a4cc0424b683eee6e8944445c0c07f1d8469d3ed92671d04034db3d80a3b4623</cites><orcidid>0000-0003-3938-5393</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%2F2015GL065798$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2015GL065798$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>315,781,785,1418,1434,11519,27929,27930,45579,45580,46414,46473,46838,46897</link.rule.ids></links><search><creatorcontrib>Lapworth, D. J.</creatorcontrib><creatorcontrib>MacDonald, A. M.</creatorcontrib><creatorcontrib>Krishan, G.</creatorcontrib><creatorcontrib>Rao, M. S.</creatorcontrib><creatorcontrib>Gooddy, D. C.</creatorcontrib><creatorcontrib>Darling, W. G.</creatorcontrib><title>Groundwater recharge and age-depth profiles of intensively exploited groundwater resources in northwest India</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Intensive irrigation in northwest India has led to growing concerns over the sustainability of current and future groundwater ion. Environmental tracers and measurements of groundwater residence times can help quantify the renewal processes. Results from 16 paired locations show the interquartile ranges for residence times in shallow alluvial groundwater (8–50 m deep) to be 1–50 years and significantly less than those from deeper groundwater (76–160 m deep) at 40–170 years. The widespread occurrence of modern tracers in deep groundwater (>60% of sites had >10% modern recharge) suggests that there is low regional aquifer anisotropy and that deep aquifers are recharged by a significant component of recent recharge via vertical leakage. Stable isotope and noble gas results at all depths conform to modern meteoric sources and annual average temperatures, with no evidence of significant regional recharge from canal leakage in this study area close to the Himalayas.
Key Points
Tracers reveal low regional anisotropy in the sedimentary aquifer system of NW India
Local meteoric recharge sources dominate in both shallow and deep aquifers
Evidence of enhanced modern recharge at depth due to intensive ion</description><subject>Age</subject><subject>Anisotropy</subject><subject>Aquifers</subject><subject>Area</subject><subject>Climate</subject><subject>Depth</subject><subject>Environmental tracers</subject><subject>Exploitation</subject><subject>Groundwater</subject><subject>Groundwater recharge</subject><subject>Groundwater resources</subject><subject>India</subject><subject>Irrigation</subject><subject>Isotopes</subject><subject>Leakage</subject><subject>Locations (working)</subject><subject>Northwest</subject><subject>over exploitation</subject><subject>Profiles</subject><subject>Rare gases</subject><subject>recharge</subject><subject>Recharging</subject><subject>Regional</subject><subject>Renewal</subject><subject>Resource exploitation</subject><subject>Stable isotopes</subject><subject>Sustainability</subject><subject>Tracers</subject><subject>Water resources</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><recordid>eNqN0U1vEzEQBmALUYlQuPEDLHHhwNLxt_cIESyVoiJVrejNctazictmN9gb0vx7XKVCwKHqyXN4ZjyvhpA3DD4wAH7GgalmAVqZ2j4jM1ZLWVkA85zMAOpSc6NfkJc53wKAAMFmZNOkcTeEvZ8w0YTt2qcVUj8E6ldYBdxOa7pNYxd7zHTsaBwmHHL8hf2B4t22H-OEga7-GZLHXWoLjwMdxjSt95gnej6E6F-Rk873GV8_vKfk-svnq_nXavGtOZ9_XFRe1rWujJdtC5LLpbYCETXaEkVK1UILpmPBSl0HgaHm2rAAEoQMSxEseLGUmotT8u44t6z-c1e-d5uYW-x7P-C4y44ZzRlXQoonUMEt48bWhb79j96WpEMJ4ljNwBqhpH5UGc41s8qqot4fVZvGnBN2bpvixqeDY-Duj-n-Pmbh_Mj35RCHR61rLhclGdxvUh2bYp7w7k-TTz-cNsIo9_2icTfq5tMVm4O7EL8BN82uPQ</recordid><startdate>20150928</startdate><enddate>20150928</enddate><creator>Lapworth, D. J.</creator><creator>MacDonald, A. M.</creator><creator>Krishan, G.</creator><creator>Rao, M. S.</creator><creator>Gooddy, D. C.</creator><creator>Darling, W. G.</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>24P</scope><scope>WIN</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>7ST</scope><scope>7U6</scope><scope>7UA</scope><scope>C1K</scope><orcidid>https://orcid.org/0000-0003-3938-5393</orcidid></search><sort><creationdate>20150928</creationdate><title>Groundwater recharge and age-depth profiles of intensively exploited groundwater resources in northwest India</title><author>Lapworth, D. J. ; MacDonald, A. M. ; Krishan, G. ; Rao, M. S. ; Gooddy, D. C. ; Darling, W. 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J.</au><au>MacDonald, A. M.</au><au>Krishan, G.</au><au>Rao, M. S.</au><au>Gooddy, D. C.</au><au>Darling, W. G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Groundwater recharge and age-depth profiles of intensively exploited groundwater resources in northwest India</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2015-09-28</date><risdate>2015</risdate><volume>42</volume><issue>18</issue><spage>7554</spage><epage>7562</epage><pages>7554-7562</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Intensive irrigation in northwest India has led to growing concerns over the sustainability of current and future groundwater ion. Environmental tracers and measurements of groundwater residence times can help quantify the renewal processes. Results from 16 paired locations show the interquartile ranges for residence times in shallow alluvial groundwater (8–50 m deep) to be 1–50 years and significantly less than those from deeper groundwater (76–160 m deep) at 40–170 years. The widespread occurrence of modern tracers in deep groundwater (>60% of sites had >10% modern recharge) suggests that there is low regional aquifer anisotropy and that deep aquifers are recharged by a significant component of recent recharge via vertical leakage. Stable isotope and noble gas results at all depths conform to modern meteoric sources and annual average temperatures, with no evidence of significant regional recharge from canal leakage in this study area close to the Himalayas.
Key Points
Tracers reveal low regional anisotropy in the sedimentary aquifer system of NW India
Local meteoric recharge sources dominate in both shallow and deep aquifers
Evidence of enhanced modern recharge at depth due to intensive ion</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2015GL065798</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-3938-5393</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Age Anisotropy Aquifers Area Climate Depth Environmental tracers Exploitation Groundwater Groundwater recharge Groundwater resources India Irrigation Isotopes Leakage Locations (working) Northwest over exploitation Profiles Rare gases recharge Recharging Regional Renewal Resource exploitation Stable isotopes Sustainability Tracers Water resources |
| title | Groundwater recharge and age-depth profiles of intensively exploited groundwater resources in northwest India |
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