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Measurement of snowpack properties using active FM-CW microwave systems

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dc.contributor.authorFarr, John Merritt, author
dc.contributor.authorBoyne, Harold S., advisor
dc.contributor.authorSmith, Freeman M. (Freeman Minson), 1939-, committee member
dc.contributor.authorSmith, James A., committee member
dc.date.accessioned2007-01-03T05:48:07Z
dc.date.available2007-01-03T05:48:07Z
dc.date.issued1982
dc.description.abstractThis paper reports on the use of an FM-CW active microwave system, in a research mode, to remotely sense water equivalence and liquid water content of snowpacks. A three-component "electrical path length" dielectric mixture model is described which accounts for the microwave system response as a function of operating frequency, snow density and depth (water equivalence), and liquid water content. This physically based model is compared to currently accepted, semi-empirical mixture models and the limited data that exists. The "electrical path length" model compares favorably and has a distinctly simpler form than other models, making it workable for the specific problem addressed. It is concluded that by collecting data in two frequency ranges (just below the relaxation frequency of water), the depth of ice, the depth of liquid water, and thus the water equivalence of dry or wet snowpacks could be determined. Liquid water content determinations, made on a real-time basis, could then serve as invaluable melt-rate indexes for remote sites. Recommendations are given for the design configuration of an operational system, which could be incorporated into hydrometeorological data acquisition platforms such as SNOTEL.
dc.format.mediummasters theses
dc.identifier1982_Summer_Farr_John.pdf
dc.identifierETDF1982400046GEOS
dc.identifier.urihttp://hdl.handle.net/10217/88192
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relationCatalog record number (MMS ID): 991005021669703361
dc.relationGB2601.72.R42.F37
dc.relation.ispartof1980-1999
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.subject.lcshSnow -- Measurement
dc.subject.lcshRemote sensing
dc.subject.lcshMicrowave measurements
dc.titleMeasurement of snowpack properties using active FM-CW microwave systems
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineEarth Resources
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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