Parameterization of Centimeter-Scale Sea Ice Surface Roughness Using Terrestrial LiDAR

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dc.contributor.authorLandy, Jack
dc.contributor.authorIsleifson, Dustin
dc.contributor.authorKomarov, Alexander
dc.contributor.authorBarber, David
dc.date.accessioned2020-08-18T00:21:08Z
dc.date.available2020-08-18T00:21:08Z
dc.date.issued2015-03
dc.date.submitted2020-08-18T00:21:08Zen_US
dc.description.abstractMicrowave scattering from sea ice is partially controlled by the ice surface roughness. In this paper, we propose a technique for calculating 2-D centimeter-scale surface roughness parameters, including the rms height, correlation length, and form of autocorrelation function, from 3-D terrestrial light detection and ranging data. We demonstrate that a single scale of roughness can be extracted from complex sea ice surfaces, incorporating multiple scales of topography, after sophisticated 2-D detrending, and calculate roughness parameters for a wide range of artificial and natural sea ice surface types. The 2-D technique is shown to be considerably more precise than standard 1-D profiling techniques and can therefore characterize surface roughness as a stationary single-scale process, which a 1-D technique typically cannot do. Sea ice surfaces are generally found to have strongly anisotropic correlation lengths, indicating that microwave scattering models for sea ice should include surface spectra that vary as a function of the azimuthal angle of incident radiation. However, our results demonstrate that there is no fundamental relationship between the rms height and correlation length for sea ice surfaces if the sampling area is above a threshold minimum size.en_US
dc.identifier.citationLandy, J. C., Isleifson, D., Komarov, A. S., Barber, D. G., 2015. Parameterization of Centimeter-Scale Sea Ice Surface Roughness Using Terrestrial LiDAR. IEEE Trans Geosci Remote Sens. 53(3):1271-1286. https://doi.org/10.1109/TGRS.2014.233683.en_US
dc.identifier.doi10.1109/TGRS.2014.2336833
dc.identifier.urihttp://hdl.handle.net/1993/34870
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.rightsopen accessen_US
dc.subjectgeophysical measurementsen_US
dc.subjectice surfaceen_US
dc.subjectlaser applicationsen_US
dc.subjectmeasurement by laser beamen_US
dc.subjectradar scatteringen_US
dc.subjectsea iceen_US
dc.subjectsurface roughnessen_US
dc.subjectsurface topographyen_US
dc.titleParameterization of Centimeter-Scale Sea Ice Surface Roughness Using Terrestrial LiDARen_US
dc.typeArticleen_US
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