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Article: The different characteristics of aquifer parameters and their implications on pumping-test analysis

TitleThe different characteristics of aquifer parameters and their implications on pumping-test analysis
Authors
Issue Date1997
PublisherBlackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journal.asp?ref=0017-467X&site=1
Citation
Ground Water, 1997, v. 35 n. 1, p. 25-29 How to Cite?
AbstractThe concepts of two-way coordinates and one-way coordinates are used to describe the different characteristics of two key aquifer parameters, transmissivity and storativity, under constant-rate pumping conditions. A two-way coordinate is such that the conditions at a given location are influenced by changes in conditions on either side of that location; a one-way coordinate is such that the conditions at a given location are influenced by changes in conditions on only one side of that location. Results from sensitivity analysis indicate that storativity has the characteristics of two-way coordinates, but transmissivity has the characteristics of one-way coordinates, i.e., its information can be transferred mainly from upstream to downstream. An upstream observation well can produce information on storativity both upstream and downstream, but it can produce little information on transmissivity downstream. These characteristics of the aquifer parameters have important implications on pumping-test designs and interpretation. For example, to estimate the parameters of an anomalous zone in an aquifer, an observation well should be located downstream but near the zone. It should not be placed upstream if the parameters downstream are to be estimated. An observation well which can provide adequate information for estimating storativity may not provide adequate information for estimating transmissivity, and vice versa. The aquifer area represented by estimated storativity may be different from that represented by estimated transmissivity.
Persistent Identifierhttp://hdl.handle.net/10722/73019
ISSN
2015 Impact Factor: 1.947
2015 SCImago Journal Rankings: 1.111
References

 

DC FieldValueLanguage
dc.contributor.authorJiao, JJen_HK
dc.contributor.authorZheng, Cen_HK
dc.date.accessioned2010-09-06T06:47:17Z-
dc.date.available2010-09-06T06:47:17Z-
dc.date.issued1997en_HK
dc.identifier.citationGround Water, 1997, v. 35 n. 1, p. 25-29en_HK
dc.identifier.issn0017-467Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/73019-
dc.description.abstractThe concepts of two-way coordinates and one-way coordinates are used to describe the different characteristics of two key aquifer parameters, transmissivity and storativity, under constant-rate pumping conditions. A two-way coordinate is such that the conditions at a given location are influenced by changes in conditions on either side of that location; a one-way coordinate is such that the conditions at a given location are influenced by changes in conditions on only one side of that location. Results from sensitivity analysis indicate that storativity has the characteristics of two-way coordinates, but transmissivity has the characteristics of one-way coordinates, i.e., its information can be transferred mainly from upstream to downstream. An upstream observation well can produce information on storativity both upstream and downstream, but it can produce little information on transmissivity downstream. These characteristics of the aquifer parameters have important implications on pumping-test designs and interpretation. For example, to estimate the parameters of an anomalous zone in an aquifer, an observation well should be located downstream but near the zone. It should not be placed upstream if the parameters downstream are to be estimated. An observation well which can provide adequate information for estimating storativity may not provide adequate information for estimating transmissivity, and vice versa. The aquifer area represented by estimated storativity may be different from that represented by estimated transmissivity.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journal.asp?ref=0017-467X&site=1en_HK
dc.relation.ispartofGround Wateren_HK
dc.titleThe different characteristics of aquifer parameters and their implications on pumping-test analysisen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0017-467X&volume=35&issue=1&spage=25&epage=29&date=1997&atitle=The+different+characteristics+of+aquifer+parameters+and+their+implications+on+pumping-test+analysisen_HK
dc.identifier.emailJiao, JJ:jjiao@hku.hken_HK
dc.identifier.authorityJiao, JJ=rp00712en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0030760915en_HK
dc.identifier.hkuros26138en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030760915&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume35en_HK
dc.identifier.issue1en_HK
dc.identifier.spage25en_HK
dc.identifier.epage29en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridJiao, JJ=7102382963en_HK
dc.identifier.scopusauthoridZheng, C=7401934994en_HK

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