Estimation of soil salinity in a drip irrigation system by using joint inversion of multicoil electromagnetic induction measurements

Handle URI:
http://hdl.handle.net/10754/552738
Title:
Estimation of soil salinity in a drip irrigation system by using joint inversion of multicoil electromagnetic induction measurements
Authors:
Jadoon, Khan Zaib; Moghadas, Davood; Jadoon, Aurangzeb; Missimer, Thomas M.; Al-Mashharawi, Samir K.; McCabe, Matthew ( 0000-0002-1279-5272 )
Abstract:
Low frequency electromagnetic induction (EMI) is becoming a useful tool for soil characterization due to its fast measurement capability and sensitivity to soil moisture and salinity. In this research, a new EMI system (the CMD mini-Explorer) is used for subsurface characterization of soil salinity in a drip irrigation system via a joint inversion approach of multiconfiguration EMI measurements. EMI measurements were conducted across a farm where Acacia trees are irrigated with brackish water. In situ measurements of vertical bulk electrical conductivity (σb) were recorded in different pits along one of the transects to calibrate the EMI measurements and to compare with the modeled electrical conductivity (σ) obtained by the joint inversion of multiconfiguration EMI measurements. Estimates of σ were then converted into the universal standard of soil salinity measurement (i.e., electrical conductivity of a saturated soil paste extract – ECe). Soil apparent electrical conductivity (ECa) was repeatedly measured with the CMD mini-Explorer to investigate the temperature stability of the new system at a fixed location, where the ambient air temperature increased from 26°C to 46°C. Results indicate that the new EMI system is very stable in high temperature environments, especially above 40°C, where most other approaches give unstable measurements. In addition, the distribution pattern of soil salinity is well estimated quantitatively by the joint inversion of multicomponent EMI measurements. The approach of joint inversion of EMI measurements allows for the quantitative mapping of the soil salinity distribution pattern and can be utilized for the management of soil salinity.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
Estimation of soil salinity in a drip irrigation system by using joint inversion of multicoil electromagnetic induction measurements 2015:n/a Water Resources Research
Publisher:
Wiley-Blackwell
Journal:
Water Resources Research
Issue Date:
12-May-2015
DOI:
10.1002/2014WR016245
Type:
Article
ISSN:
00431397
Additional Links:
http://doi.wiley.com/10.1002/2014WR016245
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorJadoon, Khan Zaiben
dc.contributor.authorMoghadas, Davooden
dc.contributor.authorJadoon, Aurangzeben
dc.contributor.authorMissimer, Thomas M.en
dc.contributor.authorAl-Mashharawi, Samir K.en
dc.contributor.authorMcCabe, Matthewen
dc.date.accessioned2015-05-14T06:29:24Zen
dc.date.available2015-05-14T06:29:24Zen
dc.date.issued2015-05-12en
dc.identifier.citationEstimation of soil salinity in a drip irrigation system by using joint inversion of multicoil electromagnetic induction measurements 2015:n/a Water Resources Researchen
dc.identifier.issn00431397en
dc.identifier.doi10.1002/2014WR016245en
dc.identifier.urihttp://hdl.handle.net/10754/552738en
dc.description.abstractLow frequency electromagnetic induction (EMI) is becoming a useful tool for soil characterization due to its fast measurement capability and sensitivity to soil moisture and salinity. In this research, a new EMI system (the CMD mini-Explorer) is used for subsurface characterization of soil salinity in a drip irrigation system via a joint inversion approach of multiconfiguration EMI measurements. EMI measurements were conducted across a farm where Acacia trees are irrigated with brackish water. In situ measurements of vertical bulk electrical conductivity (σb) were recorded in different pits along one of the transects to calibrate the EMI measurements and to compare with the modeled electrical conductivity (σ) obtained by the joint inversion of multiconfiguration EMI measurements. Estimates of σ were then converted into the universal standard of soil salinity measurement (i.e., electrical conductivity of a saturated soil paste extract – ECe). Soil apparent electrical conductivity (ECa) was repeatedly measured with the CMD mini-Explorer to investigate the temperature stability of the new system at a fixed location, where the ambient air temperature increased from 26°C to 46°C. Results indicate that the new EMI system is very stable in high temperature environments, especially above 40°C, where most other approaches give unstable measurements. In addition, the distribution pattern of soil salinity is well estimated quantitatively by the joint inversion of multicomponent EMI measurements. The approach of joint inversion of EMI measurements allows for the quantitative mapping of the soil salinity distribution pattern and can be utilized for the management of soil salinity.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://doi.wiley.com/10.1002/2014WR016245en
dc.rightsArchived with thanks to Water Resources Researchen
dc.subjectelectromagnetic inductionen
dc.subjectjoint inversionen
dc.subjectsoil salinityen
dc.subjectdrip irrigation systemen
dc.titleEstimation of soil salinity in a drip irrigation system by using joint inversion of multicoil electromagnetic induction measurementsen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalWater Resources Researchen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionFederal Institute for Geosciences and Natural Resources (BGR) Hannover Germanyen
dc.contributor.institutionDepartment of Earth Sciences, COMSATS Institute of Information Technology, Abbottabad, Pakistanen
dc.contributor.institutionU. A. Whitaker College of Engineering, Florida Gulf Coast University, Fort Myers, Florida, USAen
kaust.authorJadoon, Khanen
kaust.authorMissimer, Thomas M.en
kaust.authorAlmashharawi, Samiren
kaust.authorJadoon, Aurangzeben
kaust.authorMcCabe, Matthewen
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