A Review of GNSS-R/SoOP-R for Essential Hydrological Climate Variables Detection
Global navigation satellite system-reflectometry(GNSS-R)is a kind of promising remote sensing technique,which utilizes the reflected signals of GNSS for geophysical parameters detection.Its applica-tions on ocean surface are earlier and more mature.However,in recent years,with the development of spaceborne satellite exploration programs such as TechDemoSat-1,cyclone GNSS(CYGNSS)and Fengyun 3E,its advantages and potential in land remote sensing research have gradually emerged.The re-search work of the existing mechanism model is summarized.Meanwhile,this paper reviews the research status of spaceborne GNSS-R and other signal of opportunity reflection remote sensing(SoOP-R).GNSS-R's applications on soil moisture,vegetation,soil freeze-thaw monitoring are focused on,while the research status of the latest SoOP-R technology in root zone soil moisture and snow water equivalent is also summa-rized.In this way,we hope to promote the development of this technology in the detection of major climatic and meteorological parameters for the hydrological cycle to a certain extent.
GNSS-RSoOP-Rsoil moisturevegetationsoil freeze-thaw detectionroot zone soil moisturesnow water equivalent
NETL
NSTL
万方数据
维普
