Considering barometric pressure in groundwater flow investigations
Water level elevation measurements in wells are commonly used as a basis to delineate groundwater flow patterns (i.e., flow direction and hydraulic gradient). Barometric pressure fluctuations, however, can have a discernible impact on well water levels. These barometric effects may lead to erroneous...
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| Veröffentlicht in: | Water resources research 2002-06, Vol.38 (6), p.14-1-14-18 |
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| creator | Spane, F. A. |
| description | Water level elevation measurements in wells are commonly used as a basis to delineate groundwater flow patterns (i.e., flow direction and hydraulic gradient). Barometric pressure fluctuations, however, can have a discernible impact on well water levels. These barometric effects may lead to erroneous indications of hydraulic head within the aquifer. Total hydraulic head within the aquifer, not well water level elevation, is the hydrologic parameter for determining groundwater flow direction and hydraulic gradient conditions. For low‐gradient, unconfined aquifer sites exhibiting variable vadose zone characteristics (e.g., thickness, pneumatic diffusivity), barometric pressure fluctuations can cause temporal changes in lateral flow direction and flow velocity. Discrete water level measurements used to determine the average or long‐term groundwater flow conditions, therefore, may provide nonrepresentative results. Calculation of the barometric response characteristics for individual wells provides the basis to account for the temporal effects of barometric pressure fluctuations from monitor well measurements, so that average, long‐term groundwater flow pattern behavior can be determined. |
| doi_str_mv | 10.1029/2001WR000701 |
| format | Article |
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A.</creator><creatorcontrib>Spane, F. A. ; Pacific Northwest National Lab. (PNNL), Richland, WA (United States)</creatorcontrib><description>Water level elevation measurements in wells are commonly used as a basis to delineate groundwater flow patterns (i.e., flow direction and hydraulic gradient). Barometric pressure fluctuations, however, can have a discernible impact on well water levels. These barometric effects may lead to erroneous indications of hydraulic head within the aquifer. Total hydraulic head within the aquifer, not well water level elevation, is the hydrologic parameter for determining groundwater flow direction and hydraulic gradient conditions. For low‐gradient, unconfined aquifer sites exhibiting variable vadose zone characteristics (e.g., thickness, pneumatic diffusivity), barometric pressure fluctuations can cause temporal changes in lateral flow direction and flow velocity. Discrete water level measurements used to determine the average or long‐term groundwater flow conditions, therefore, may provide nonrepresentative results. Calculation of the barometric response characteristics for individual wells provides the basis to account for the temporal effects of barometric pressure fluctuations from monitor well measurements, so that average, long‐term groundwater flow pattern behavior can be determined.</description><identifier>ISSN: 0043-1397</identifier><identifier>EISSN: 1944-7973</identifier><identifier>DOI: 10.1029/2001WR000701</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>AQUIFERS ; barometric efficiency ; barometric pressure ; confined aquifer ; ENVIRONMENTAL SCIENCES ; FLUCTUATIONS ; groundwater flow ; hydraulic head ; HYDRAULICS ; MONITORS ; PNEUMATICS ; THICKNESS ; unconfined aquifer ; VELOCITY ; water levels</subject><ispartof>Water resources research, 2002-06, Vol.38 (6), p.14-1-14-18</ispartof><rights>Copyright 2002 by the American Geophysical Union.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a5007-e977b1695b9227f4178453c0457e19959390c9d77e1b221fa26fab174631e15c3</citedby><cites>FETCH-LOGICAL-a5007-e977b1695b9227f4178453c0457e19959390c9d77e1b221fa26fab174631e15c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2001WR000701$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2001WR000701$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,776,780,881,1411,11494,27903,27904,45553,45554,46446,46870</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/15003711$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Spane, F. A.</creatorcontrib><creatorcontrib>Pacific Northwest National Lab. (PNNL), Richland, WA (United States)</creatorcontrib><title>Considering barometric pressure in groundwater flow investigations</title><title>Water resources research</title><addtitle>Water Resour. Res</addtitle><description>Water level elevation measurements in wells are commonly used as a basis to delineate groundwater flow patterns (i.e., flow direction and hydraulic gradient). Barometric pressure fluctuations, however, can have a discernible impact on well water levels. These barometric effects may lead to erroneous indications of hydraulic head within the aquifer. Total hydraulic head within the aquifer, not well water level elevation, is the hydrologic parameter for determining groundwater flow direction and hydraulic gradient conditions. For low‐gradient, unconfined aquifer sites exhibiting variable vadose zone characteristics (e.g., thickness, pneumatic diffusivity), barometric pressure fluctuations can cause temporal changes in lateral flow direction and flow velocity. Discrete water level measurements used to determine the average or long‐term groundwater flow conditions, therefore, may provide nonrepresentative results. Calculation of the barometric response characteristics for individual wells provides the basis to account for the temporal effects of barometric pressure fluctuations from monitor well measurements, so that average, long‐term groundwater flow pattern behavior can be determined.</description><subject>AQUIFERS</subject><subject>barometric efficiency</subject><subject>barometric pressure</subject><subject>confined aquifer</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>FLUCTUATIONS</subject><subject>groundwater flow</subject><subject>hydraulic head</subject><subject>HYDRAULICS</subject><subject>MONITORS</subject><subject>PNEUMATICS</subject><subject>THICKNESS</subject><subject>unconfined aquifer</subject><subject>VELOCITY</subject><subject>water levels</subject><issn>0043-1397</issn><issn>1944-7973</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LAzEQxYMoWKs3P8CC4MnVzCa7MUctWoWiUv9UvIRsOluj201Ntla_vZEV8eRpmOH35j0eIbtAD4Fm8iijFCZjSqmgsEZ6IDlPhRRsnfQo5SwFJsUm2QrhJYI8L0SPnA5cE-wUvW1mSam9m2PrrUkWHkNYekxsk8y8WzbTlW7RJ1XtVvH2jqG1M93aqN4mG5WuA-78zD65Pz-7G1yko-vh5eBklOo8JkpRClFCIfNSZpmoOIhjnjNDeS4QpMwlk9TIqYhbmWVQ6ayodAmCFwwQcsP6ZK_766K3Csa2aJ6Naxo0rYLowQRApPY7auHd2zLGVHMbDNa1btAtg4LjAkCyIoIHHWi8C8FjpRbezrX_VEDVd53qb50Rzzp8ZWv8_JdVk_FgLIGLKEo7kQ0tfvyKtH9VhWAiV5OroXo8H97c3BYP6ol9AQoDhFM</recordid><startdate>200206</startdate><enddate>200206</enddate><creator>Spane, F. A.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TG</scope><scope>7UA</scope><scope>C1K</scope><scope>KL.</scope><scope>OTOTI</scope></search><sort><creationdate>200206</creationdate><title>Considering barometric pressure in groundwater flow investigations</title><author>Spane, F. A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a5007-e977b1695b9227f4178453c0457e19959390c9d77e1b221fa26fab174631e15c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>AQUIFERS</topic><topic>barometric efficiency</topic><topic>barometric pressure</topic><topic>confined aquifer</topic><topic>ENVIRONMENTAL SCIENCES</topic><topic>FLUCTUATIONS</topic><topic>groundwater flow</topic><topic>hydraulic head</topic><topic>HYDRAULICS</topic><topic>MONITORS</topic><topic>PNEUMATICS</topic><topic>THICKNESS</topic><topic>unconfined aquifer</topic><topic>VELOCITY</topic><topic>water levels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Spane, F. A.</creatorcontrib><creatorcontrib>Pacific Northwest National Lab. (PNNL), Richland, WA (United States)</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>OSTI.GOV</collection><jtitle>Water resources research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Spane, F. A.</au><aucorp>Pacific Northwest National Lab. (PNNL), Richland, WA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Considering barometric pressure in groundwater flow investigations</atitle><jtitle>Water resources research</jtitle><addtitle>Water Resour. Res</addtitle><date>2002-06</date><risdate>2002</risdate><volume>38</volume><issue>6</issue><spage>14-1</spage><epage>14-18</epage><pages>14-1-14-18</pages><issn>0043-1397</issn><eissn>1944-7973</eissn><abstract>Water level elevation measurements in wells are commonly used as a basis to delineate groundwater flow patterns (i.e., flow direction and hydraulic gradient). Barometric pressure fluctuations, however, can have a discernible impact on well water levels. These barometric effects may lead to erroneous indications of hydraulic head within the aquifer. Total hydraulic head within the aquifer, not well water level elevation, is the hydrologic parameter for determining groundwater flow direction and hydraulic gradient conditions. For low‐gradient, unconfined aquifer sites exhibiting variable vadose zone characteristics (e.g., thickness, pneumatic diffusivity), barometric pressure fluctuations can cause temporal changes in lateral flow direction and flow velocity. Discrete water level measurements used to determine the average or long‐term groundwater flow conditions, therefore, may provide nonrepresentative results. Calculation of the barometric response characteristics for individual wells provides the basis to account for the temporal effects of barometric pressure fluctuations from monitor well measurements, so that average, long‐term groundwater flow pattern behavior can be determined.</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2001WR000701</doi><tpages>18</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Water resources research, 2002-06, Vol.38 (6), p.14-1-14-18 |
| issn | 0043-1397 1944-7973 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Wiley-Blackwell AGU Digital Library |
| subjects | AQUIFERS barometric efficiency barometric pressure confined aquifer ENVIRONMENTAL SCIENCES FLUCTUATIONS groundwater flow hydraulic head HYDRAULICS MONITORS PNEUMATICS THICKNESS unconfined aquifer VELOCITY water levels |
| title | Considering barometric pressure in groundwater flow investigations |
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