Validation of the Soil Moisture Active Passive (SMAP) satellite soil moisture retrieval in an Arctic tundra environment

被引：20
|
作者：
Wrona, Elizabeth [1 ]
Rowlandson, Tracy L. [1 ]
Nambiar, Manoj [1 ]
Berg, Aaron A. [1 ]
Colliander, Andreas [2 ]
Marsh, Philip [3 ]
机构：
[1] Univ Guelph, Dept Geog, Guelph, ON, Canada
[2] CALTECH, Jet Prop Lab, NASA, Pasadena, CA USA
[3] Wilfrid Laurier Univ, Dept Geog & Environm Studies, Waterloo, ON, Canada
来源：
GEOPHYSICAL RESEARCH LETTERS | 2017年 / 44卷 / 09期
基金：
加拿大自然科学与工程研究理事会;
关键词：
SMAP; Arctic tundra; EASE-2; grid; MICROWAVE EMISSION; CLIMATE-CHANGE; PERMAFROST; FLUXES; RUNOFF; CARBON;
D O I：
10.1002/2017GL072946
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
This study examines the Soil Moisture Active Passive soil moisture product on the Equal Area Scalable Earth-2 (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 Soil Moisture Active Passive (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.
引用
收藏
页码：4152 / 4158
页数：7
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