A MODFLOW package to linearize stream depletion analysis
•We developed a MODFLOW package to linearize the flow equation for stream depletion analysis.•The new tool significantly reduced the numerical errors.•The new tool achieved a twenty-fold speedup compared with the conventional method. The conventional numerical method is computationally intensive and...
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| Veröffentlicht in: | Journal of hydrology (Amsterdam) 2016-01, Vol.532, p.9-15 |
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| container_title | Journal of hydrology (Amsterdam) |
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| creator | Ou, Gengxin Li, Ruopu Pun, Mahesh Osborn, Colby Bradley, Jesse Schneider, Jim Chen, Xun-Hong |
| description | •We developed a MODFLOW package to linearize the flow equation for stream depletion analysis.•The new tool significantly reduced the numerical errors.•The new tool achieved a twenty-fold speedup compared with the conventional method.
The conventional numerical method is computationally intensive and prone to numerical noises for stream depletion analyses using MODFLOW. In this study, a new MODFLOW package has been developed to improve the computational efficiency and reduce the noises for each simulation. Using the assumption of unchanged flow coefficients between the baseline and scenario runs, the nonlinear groundwater flow system is linearized for solving the flow equations. The new package has been successfully applied to a regional groundwater model in Nebraska. The results show that the numerical noises, commonly identified in conventional approach, have been significantly reduced and a twenty-fold speedup has been achieved for a regional groundwater model in Nebraska. The results suggest this package can be adapted to be a component of optimization tools for water management scenario analyses especially when a large number of scenario model runs are involved. |
| doi_str_mv | 10.1016/j.jhydrol.2015.11.025 |
| format | Article |
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The conventional numerical method is computationally intensive and prone to numerical noises for stream depletion analyses using MODFLOW. In this study, a new MODFLOW package has been developed to improve the computational efficiency and reduce the noises for each simulation. Using the assumption of unchanged flow coefficients between the baseline and scenario runs, the nonlinear groundwater flow system is linearized for solving the flow equations. The new package has been successfully applied to a regional groundwater model in Nebraska. The results show that the numerical noises, commonly identified in conventional approach, have been significantly reduced and a twenty-fold speedup has been achieved for a regional groundwater model in Nebraska. The results suggest this package can be adapted to be a component of optimization tools for water management scenario analyses especially when a large number of scenario model runs are involved.</description><identifier>ISSN: 0022-1694</identifier><identifier>EISSN: 1879-2707</identifier><identifier>DOI: 10.1016/j.jhydrol.2015.11.025</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Baseflow ; Depletion ; Groundwater ; Hydrology ; Mathematical models ; MODFLOW ; Noise ; Numerical noise ; Packages ; Regional ; Stream depletion ; Stream package ; Streams ; Stream–aquifer interaction</subject><ispartof>Journal of hydrology (Amsterdam), 2016-01, Vol.532, p.9-15</ispartof><rights>2015 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a398t-8e6c2db0d445ece30b047264f87a4fe70ea0d3178f248007acd49c6f6ac6270c3</citedby><cites>FETCH-LOGICAL-a398t-8e6c2db0d445ece30b047264f87a4fe70ea0d3178f248007acd49c6f6ac6270c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0022169415009063$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Ou, Gengxin</creatorcontrib><creatorcontrib>Li, Ruopu</creatorcontrib><creatorcontrib>Pun, Mahesh</creatorcontrib><creatorcontrib>Osborn, Colby</creatorcontrib><creatorcontrib>Bradley, Jesse</creatorcontrib><creatorcontrib>Schneider, Jim</creatorcontrib><creatorcontrib>Chen, Xun-Hong</creatorcontrib><title>A MODFLOW package to linearize stream depletion analysis</title><title>Journal of hydrology (Amsterdam)</title><description>•We developed a MODFLOW package to linearize the flow equation for stream depletion analysis.•The new tool significantly reduced the numerical errors.•The new tool achieved a twenty-fold speedup compared with the conventional method.
The conventional numerical method is computationally intensive and prone to numerical noises for stream depletion analyses using MODFLOW. In this study, a new MODFLOW package has been developed to improve the computational efficiency and reduce the noises for each simulation. Using the assumption of unchanged flow coefficients between the baseline and scenario runs, the nonlinear groundwater flow system is linearized for solving the flow equations. The new package has been successfully applied to a regional groundwater model in Nebraska. The results show that the numerical noises, commonly identified in conventional approach, have been significantly reduced and a twenty-fold speedup has been achieved for a regional groundwater model in Nebraska. The results suggest this package can be adapted to be a component of optimization tools for water management scenario analyses especially when a large number of scenario model runs are involved.</description><subject>Baseflow</subject><subject>Depletion</subject><subject>Groundwater</subject><subject>Hydrology</subject><subject>Mathematical models</subject><subject>MODFLOW</subject><subject>Noise</subject><subject>Numerical noise</subject><subject>Packages</subject><subject>Regional</subject><subject>Stream depletion</subject><subject>Stream package</subject><subject>Streams</subject><subject>Stream–aquifer interaction</subject><issn>0022-1694</issn><issn>1879-2707</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqNkLFOwzAQhi0EEqXwCEgZWRLOjmM7E6oKBaSiLiBGy7Uv4JAmwQ5I5elJ1e5wyy3_9-vuI-SSQkaBius6q9-3LnRNxoAWGaUZsOKITKiSZcokyGMyAWAspaLkp-QsxhrGyXM-IWqWPK1uF8vVa9Ib-2HeMBm6pPEtmuB_MIlDQLNJHPYNDr5rE9OaZht9PCcnlWkiXhz2lLws7p7nD-lydf84ny1Tk5dqSBUKy9waHOcFWsxhDVwywSslDa9QAhpwOZWqYlwBSGMdL62ohLFiPN3mU3K17-1D9_mFcdAbHy02jWmx-4p6RAUtSqb4P6KC5YUqlRqjxT5qQxdjwEr3wW9M2GoKeidV1_ogVe-kakr1KHXkbvYcji9_eww6Wo-tRecD2kG7zv_R8AsX34Fn</recordid><startdate>201601</startdate><enddate>201601</enddate><creator>Ou, Gengxin</creator><creator>Li, Ruopu</creator><creator>Pun, Mahesh</creator><creator>Osborn, Colby</creator><creator>Bradley, Jesse</creator><creator>Schneider, Jim</creator><creator>Chen, Xun-Hong</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7ST</scope><scope>7TG</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>SOI</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>201601</creationdate><title>A MODFLOW package to linearize stream depletion analysis</title><author>Ou, Gengxin ; Li, Ruopu ; Pun, Mahesh ; Osborn, Colby ; Bradley, Jesse ; Schneider, Jim ; Chen, Xun-Hong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a398t-8e6c2db0d445ece30b047264f87a4fe70ea0d3178f248007acd49c6f6ac6270c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Baseflow</topic><topic>Depletion</topic><topic>Groundwater</topic><topic>Hydrology</topic><topic>Mathematical models</topic><topic>MODFLOW</topic><topic>Noise</topic><topic>Numerical noise</topic><topic>Packages</topic><topic>Regional</topic><topic>Stream depletion</topic><topic>Stream package</topic><topic>Streams</topic><topic>Stream–aquifer interaction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ou, Gengxin</creatorcontrib><creatorcontrib>Li, Ruopu</creatorcontrib><creatorcontrib>Pun, Mahesh</creatorcontrib><creatorcontrib>Osborn, Colby</creatorcontrib><creatorcontrib>Bradley, Jesse</creatorcontrib><creatorcontrib>Schneider, Jim</creatorcontrib><creatorcontrib>Chen, Xun-Hong</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hydrology (Amsterdam)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ou, Gengxin</au><au>Li, Ruopu</au><au>Pun, Mahesh</au><au>Osborn, Colby</au><au>Bradley, Jesse</au><au>Schneider, Jim</au><au>Chen, Xun-Hong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A MODFLOW package to linearize stream depletion analysis</atitle><jtitle>Journal of hydrology (Amsterdam)</jtitle><date>2016-01</date><risdate>2016</risdate><volume>532</volume><spage>9</spage><epage>15</epage><pages>9-15</pages><issn>0022-1694</issn><eissn>1879-2707</eissn><abstract>•We developed a MODFLOW package to linearize the flow equation for stream depletion analysis.•The new tool significantly reduced the numerical errors.•The new tool achieved a twenty-fold speedup compared with the conventional method.
The conventional numerical method is computationally intensive and prone to numerical noises for stream depletion analyses using MODFLOW. In this study, a new MODFLOW package has been developed to improve the computational efficiency and reduce the noises for each simulation. Using the assumption of unchanged flow coefficients between the baseline and scenario runs, the nonlinear groundwater flow system is linearized for solving the flow equations. The new package has been successfully applied to a regional groundwater model in Nebraska. The results show that the numerical noises, commonly identified in conventional approach, have been significantly reduced and a twenty-fold speedup has been achieved for a regional groundwater model in Nebraska. The results suggest this package can be adapted to be a component of optimization tools for water management scenario analyses especially when a large number of scenario model runs are involved.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.jhydrol.2015.11.025</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of hydrology (Amsterdam), 2016-01, Vol.532, p.9-15 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Baseflow Depletion Groundwater Hydrology Mathematical models MODFLOW Noise Numerical noise Packages Regional Stream depletion Stream package Streams Stream–aquifer interaction |
| title | A MODFLOW package to linearize stream depletion analysis |
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