Title :
Snow cover detected by diurnal warming of sea ice/snow surface off Labrador in NOAA imagery
Author :
Ikeda, Motoyoshi
Author_Institution :
Dept. of Fisheries & Oceans, Bedford Inst. of Oceanogr., Dartmouth, NS, Canada
fDate :
9/1/1989 12:00:00 AM
Abstract :
Four consecutive NOAA-9 infrared images show diurnal warming of the sea-ice surface off the coast of Labrador. For three subdomains with scales of ~100 km, the warming of the surface is obtained on the assumption that the warming of the surface is obtained on the assumption that the warming in one pixel is proportional to ice compactness, which is given in turn by brightness of a visible (daytime) image. A one-dimensional heat transfer equation for snow and ice is solved. An algorithm to estimate the snow thickness, which is required to calculate the heat flux through ice, from this extra warming is proposed
Keywords :
oceanographic regions; remote sensing; sea ice; snow; Labrador coast; NOAA imagery; NOAA-9 infrared images; NW Atlantic; brightness; diurnal warming; heat flux; ice compactness; one-dimensional heat transfer equation; sea ice; snow surface; snow thickness; Brightness; Equations; Heat transfer; Ice surface; Ice thickness; Infrared imaging; Pixel; Sea ice; Sea surface; Snow;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.1989.35937
