Validation of SMAP retrieval in an Arctic tundra environment: Trail Valley Creek, Northwest Territories [Canada] dataset

This study examines Soil Moisture Active Passive (SMAP) soil moisture product on the EASE-2 36km Global cylindrical and North Polar azimuthal grids relative to two in situ soil moisture monitoring networks that were installed in 2015 and 2016. Results indicate that there is no relationship between t...

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Bibliographic Details
Main Authors: Wrona, Elizabeth, Rowlandson, Tracy L., Nambiar, Manoj, Berg, Aaron A., Colliander, Andreas, Marsh, Philip
Other Authors: Aaron Berg's Research Group. Department of Geography. College of Social and Applied Human Sciences. University of Guelph.
Format: Other/Unknown Material
Language:English
Published: Borealis 2015
Subjects:
Earth and Environmental Sciences
soil moisture
Soil Moisture Active Passive (SMAP)
Arctic tundra
high altitude
in situ measurements
permafrost
passive soil moisture
brightness temperature
soil freeze/thaw
Arctic
Northwest Territories
Canada
Valley Creek
Trail Valley Creek
Tundra
Online Access:https://doi.org/10.5683/SP/NDTRLG
Description
Summary:This study examines Soil Moisture Active Passive (SMAP) soil moisture product on the EASE-2 36km Global cylindrical and North Polar azimuthal grids relative to two in situ soil moisture monitoring networks that were installed in 2015 and 2016. Results indicate that there is no relationship between the SMAP Level-2 passive soil moisture product and the upscaled in situ measurements. Additionally, there is very low correlation between modeled brightness temperature using the Community Microwave Emission Model and the Level-1 C SMAP brightness temperature interpolated to the EASE-2 Global grid; however, there is a much stronger relationship to the brightness temperature measurements interpolated to the North Polar grid, suggesting that the soil moisture product could be improved with interpolation on the North Polar grid.

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