Snow Thickness Estimation on First-Year Sea Ice from Microwave and Optical Remote Sensing and Melt Modelling

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atmire.migration.oldid5283
dc.contributor.advisorYackel, John
dc.contributor.authorZheng, Jiacheng
dc.contributor.committeememberElse, Brent
dc.contributor.committeememberMichael, Sideris
dc.date.accessioned2017-01-19T16:40:20Z
dc.date.available2017-01-19T16:40:20Z
dc.date.issued2017
dc.date.submitted2017en
dc.description.abstractLate-winter snow thickness on first-year sea ice is estimated based on the duration of snowmelt. The study encompasses the late-winter to advanced-melt period. The beginning of snowmelt is detected using space-borne C-band microwave scatterometer measurements, and the end of snowmelt is detected using optical satellite measurements. The snowmelt duration is then used to invert a degree-day snowmelt model based on air temperature, and a melt coefficient is calibrated with in situ observations. The modelled snow thickness estimation is validated with distributed in situ measurements of snow thickness throughout Dease Strait, Nunavut, Canada. The mean snowmelt duration for the study sites is 24.6 ± 1.2 days, and the estimated mean snow thickness is 14.7 ± 3.0 cm. The overall performance of the model reveals a RMSE of 27.1% and a bias of 1.8%. The methodology shows promise, and it can easily be scaled up to estimate snow thickness on a regional basis.en_US
dc.identifier.citationZheng, J. (2017). Snow Thickness Estimation on First-Year Sea Ice from Microwave and Optical Remote Sensing and Melt Modelling (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27807en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/27807
dc.identifier.urihttp://hdl.handle.net/11023/3574
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectPhysical Geography
dc.subjectRemote Sensing
dc.subject.otherSea ice
dc.subject.otherRemote Sensing
dc.subject.otherModelling
dc.subject.otherSnow
dc.subject.otherMicrowave
dc.subject.otherCryosphere
dc.subject.otherCanadian Arctic
dc.titleSnow Thickness Estimation on First-Year Sea Ice from Microwave and Optical Remote Sensing and Melt Modelling
dc.typemaster thesis
thesis.degree.disciplineGeography
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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