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Performance evaluation of selected soil moisture sensors

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dc.contributor.authorChávez, José L., author
dc.contributor.authorVarble, Jordan L., author
dc.contributor.authorAndales, Allan A., author
dc.date.accessioned2020-07-23T19:46:55Z
dc.date.available2020-07-23T19:46:55Z
dc.date.issued2011-02
dc.descriptionPresented at Proceedings of the 23rd annual Central Plains irrigation conference held in Burlington, Colorado on February 22-23, 2011.
dc.description.abstractIrrigation water management practices could greatly benefit from using soil moisture sensors that accurately measure soil water content or potential. Therefore, an assessment on soil moisture sensor reading accuracy is important. In this study, a performance evaluation of selected sensor calibration was performed considering factory- laboratory- and field-based calibrations. The selected sensors included: the Digitized Time Domain Transmissometry (TDT, Acclima, Inc., Meridian, ID) which is a volumetric soil water content sensor, and a resistance-based soil water potential sensor (Watermark 200, Irrometer Company, Inc., Riverside, CA). Measured soil water content/potential values, on a sandy clay loam soil, were compared with corresponding values derived from gravimetric samples. Under laboratory and field conditions, the factory-based calibrations for the TDT sensor accurately measured volumetric soil water content. Therefore, the use of the TDT sensor for irrigation water management seems very promising. Laboratory tests indicated that a linear calibration for the TDT sensor and a logarithmic calibration for the watermark sensor improved the factory calibration. In the case of the watermark, a longer set of field data is needed to properly establish its accuracy and reliability.
dc.format.mediumborn digital
dc.format.mediumCD-ROMs
dc.format.mediumproceedings (reports)
dc.identifier.urihttps://hdl.handle.net/10217/210872
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofIrrigation Management
dc.relation.ispartofProceedings of the 2011 Central Plains irrigation conference, Burlington, Colorado, February 22-23
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.sourceContained in: Proceedings of the 2011 Central Plains irrigation conference, Burlington, Colorado, February 22-23, http://hdl.handle.net/10217/47726
dc.titlePerformance evaluation of selected soil moisture sensors
dc.title.alternativeProceedings of the 23rd annual Central Plains irrigation conference
dc.typeText

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