On the estimation of physical roughness of a marginal sea ice zone using remote sensing

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dc.contributor.authorGupta, Mukesh
dc.contributor.examiningcommitteeDoering, Jay (Civil Engineering) Ehn, Jens (Environment and Geography) Papakyriakou, Tim (Environment and Geography) Bernier, Monique (Institut National de la Recherche Scientifique)en_US
dc.contributor.supervisorBarber, David (Environment and Geography)en_US
dc.date.accessioned2014-08-20T17:18:25Z
dc.date.available2014-08-20T17:18:25Z
dc.date.issued2014-01-30en_US
dc.date.issued2013-04-26en_US
dc.date.issued2014-03-10en_US
dc.degree.disciplineEnvironment and Geographyen_US
dc.degree.levelDoctor of Philosophy (Ph.D.)en_US
dc.description.abstractThis thesis provides insight into techniques for the detection and classification of various marginal ice zone roughnesses in the southern Beaufort Sea using in situ and satellite-based microwave remote sensing. A proposed model of surface roughness shows the dependence of circular coherence, a discriminator of roughness, on the roughness and dielectrics. A relationship between ice slopes in azimuth and range direction is derived. Microwave brightness temperature of open water is significantly correlated with wave height but not with the wind speed, having the strongest correlations for the H-polarization at both 37 and 89 GHz. A modified formula for the relationship between non-dimensional form of energy and wave age at wind speeds 0−10 m/s is obtained. The brightness temperature (April−June) of sea ice at H-polarization of 89 GHz is found to decrease with increasing roughness, and is attributed to the dominant contributions from rapidly varying thermodynamic properties of snow-covered sea ice.en_US
dc.description.noteOctober 2014en_US
dc.identifier.citationGupta, M., Barber, D. G., Scharien, R. K., and Isleifson, D. (2014). Detection and classification of surface roughness in an Arctic marginal sea ice zone. Hydrological Processes, 28, 599−609, doi:10.1002/hyp.9593en_US
dc.identifier.citationGupta, M., Scharien, R. K., and Barber, D. G. (2013). C-band polarimetric coherences and ratios for discriminating sea ice roughness. International Journal of Oceanography, 2013, Article ID 567182, 1−13, doi:10.1155/2013/567182en_US
dc.identifier.citationGupta, M., Scharien, R. K., and Barber, D. G. (2014). Microwave emission and scattering from ocean surface waves in the southern Beaufort Sea. International Journal of Oceanography, 2014, Article ID 872342, 1−12, doi:10.1155/2014/872342en_US
dc.identifier.urihttp://hdl.handle.net/1993/23836
dc.language.isoengen_US
dc.publisherJohn Wiley and Sons, Ltd.en_US
dc.publisherHindawi Publishing Corporationen_US
dc.publisherHindawi Publishing Corporationen_US
dc.rightsopen accessen_US
dc.subjectArcticen_US
dc.subjectsurface roughnessen_US
dc.subjectmarginal ice zoneen_US
dc.subjectsea iceen_US
dc.subjectpolarimetryen_US
dc.subjectpassive microwaveen_US
dc.subjectactive microwaveen_US
dc.subjectremote sensing
dc.titleOn the estimation of physical roughness of a marginal sea ice zone using remote sensingen_US
dc.typedoctoral thesisen_US
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