(Table 3) Air temperatures, and snow and ice characteristics of fresh and brackish water lakes in the Northwest Territories, Canada ...

The algorithms designed to estimate snow water equivalent (SWE) using passive microwave measurements falter in lake-rich high-latitude environments due to the emission properties of ice covered lakes on low frequency measurements. Microwave emission models have been used to simulate brightness tempe...

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Bibliographic Details
Main Authors: Gunn, Grant E, Duguay, Claude R, Derksen, Chris, Lemmetyinen, Juha, Toose, Peter
Format: Dataset
Language:English
Published: PANGAEA 2011
Subjects:
Event label
Latitude of event
Longitude of event
Water bodies
Site
DATE/TIME
Date/time end
Temperature, air
Snow thickness
Snow water equivalent
Density, snow
Snow grain size
Sea ice thickness
Ice type
Snow/ice sample
International Polar Year 2007-2008 IPY
Canada
Inuvik
Northwest Territories
International Polar Year
IPY
Sea ice
Online Access:https://dx.doi.org/10.1594/pangaea.810343
https://doi.pangaea.de/10.1594/PANGAEA.810343
Description
Summary:The algorithms designed to estimate snow water equivalent (SWE) using passive microwave measurements falter in lake-rich high-latitude environments due to the emission properties of ice covered lakes on low frequency measurements. Microwave emission models have been used to simulate brightness temperatures (Tbs) for snowpack characteristics in terrestrial environments but cannot be applied to snow on lakes because of the differing subsurface emissivities and scattering matrices present in ice. This paper examines the performance of a modified version of the Helsinki University of Technology (HUT) snow emission model that incorporates microwave emission from lake ice and sub-ice water. Inputs to the HUT model include measurements collected over brackish and freshwater lakes north of Inuvik, Northwest Territories, Canada in April 2008, consisting of snowpack (depth, density, and snow water equivalent) and lake ice (thickness and ice type). Coincident airborne radiometer measurements at a resolution of 80x100 m ... : Note that the exact position of Lakes A and B could not be derived from the article. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...

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