Nearshore ice surface roughness surveys on Lake Superior

Author

Pilan, Drew

Author_Institution

Dept. of Geol. Eng. & Sci., Michigan Technol. Univ., Houghton, MI, USA

Volume

1

fYear

1996

fDate

27-31 May 1996

Firstpage

121

Abstract

Nearshore ice surface roughness and snow thickness were surveyed with an autolevel on Lake Superior for application to multisensor satellite remote sensing of Great Lakes ice cover. Topographic transects across four commonly occurring ice facies were measured with 0.2 cm vertical and 5.0 cm horizontal resolutions. The four ice facies rank in roughness as follows (RMS roughness (cm)/correlation length (cm) in parentheses): single large pressure ridge (30/125), series of small pressure ridges (16/110), ball ice zone (8/70) and young ice cakes (5/145). Thin snow cover was widespread on the nearshore facies, with potential for generating diurnally-varying melt related changes in electromagnetic signatures during spring warming

Keywords

electromagnetic wave scattering; hydrological techniques; hydrology; ice; infrared imaging; lakes; radar cross-sections; remote sensing; remote sensing by radar; snow; Canada; Great Lakes; IR imaging; Lake Superior; Michigan; USA; United States; backscatter; ball ice zone; electromagnetic signature; ice cover; lake ice; measurement technique; nearshore ice surface roughness; optical imaging; pressure ridge; radar scattering; satellite remote sensing; snow thickness; snowcover; young ice cake; Ice surface; Ice thickness; Lakes; Remote sensing; Rough surfaces; Sea measurements; Sea surface; Snow; Surface roughness; Surface topography;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International

Conference_Location

Lincoln, NE

Print_ISBN

0-7803-3068-4

Type

conf

DOI

10.1109/IGARSS.1996.516264

Filename

516264