Active microwave remote sensing for soil moisture measurement: a field evaluation using ERS-2

2004 ◽  
Vol 18 (11) ◽  
pp. 1975-1997 ◽  
Author(s):  
Jeffrey P. Walker ◽  
Paul R. Houser ◽  
Garry R. Willgoose
Keyword(s):  
Remote Sensing ◽  
Soil Moisture ◽  
Microwave Remote Sensing ◽  
Field Evaluation ◽  
Moisture Measurement ◽  
Active Microwave Remote Sensing ◽  
Soil Moisture Measurement

Space borne Active Microwave Remote Sensing of Soil Moisture: A Review

2017 ◽  
Vol 1 (1) ◽  
pp. 53-86 ◽  
Author(s):  
Vijay Bhagat
Keyword(s):  
Remote Sensing ◽  
Soil Moisture ◽  
Land Surface ◽  
Soil Layer ◽  
Microwave Remote Sensing ◽  
Climate Change Management ◽  
Scientific Challenge ◽  
Active Microwave Remote Sensing ◽  
Interesting Area ◽  
Selection Of

Space-borne active microwave remote sensing is an efficient technique to acquire knowledge of land surface soil moisture (SM). Several studies have reported comparable results of surface SM using space-borne scatterometer responses to backscattering from soil layer. However, detection and measuring of SM using these techniques require an appropriate filtering of data, site-specific calibration of surface roughness parameters, prior knowledge of the study area, specific research purpose, careful selection of model, different suitable datasets with appropriate time series, etc. Reported success studies are very site-, data- and situation-specific and show uncertainty in SM estimations therefore, insufficient to reach global conclusions and applications. Scientific challenge before the community is to develop or modify models and appropriate datasets for SM estimations with simplification and high precision with global applicability for complex bio-physical units. The field is new, active, attractive, challenging and interesting area of research for sustainable land and climate change management.

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