DocumentCode :
2132996
Title :
Joint field experiment of microwave and visible sensors for bare soil and vegetation and preliminary analysis
Author :
Wang, Chao ; ZHANG, Weiguo ; ZHANG, Hong ; Guo, Ziqi ; Ge, Jianjun ; ZHAO, Kai ; LIU, Baojiang ; DONG, Hang
Author_Institution :
Inst. of Remote Sensing Applications, Chinese Acad. of Sci., Beijing, China
Volume :
5
fYear :
2002
fDate :
2002
Firstpage :
3062
Abstract :
A joint field experiment was carried out using microwave and visible sensors for bare soil and vegetation in Shunyi of Beijing in May 2001. The sensors include a microwave radiometer, microwave scatterometer and visible and infrared spectrometer. The microwave radiometer operates in the L, C and K band with H and V polarizations. The microwave scatterometer operates in the C band with HH, HV, VH, VV polarizations. The microwave brightness temperature, backscatter coefficients and reflectivity of bare soil, winter wheat and alfalfa were measured at various incidence angles. Meanwhile, ground surface parameters such as soil surface roughness, soil moisture and temperature of various depths, LAI of winter wheat and alfalfa were measured at the same time. The measured data were analyzed and an algorithm based on synergistic use of all these data is put forward to estimate soil moisture.
Keywords :
geophysical techniques; hydrological techniques; infrared spectroscopy; moisture; radiometry; remote sensing by radar; rough surfaces; soil; vegetation mapping; visible spectroscopy; Beijing; China; LAI; Shunyi; alfalfa; backscatter coefficients; bare soil; depths; ground surface parameters; incidence angles; infrared spectrometer data; leaf area index; microwave brightness temperature; microwave radiometer data; microwave scatterometer data; microwave sensors data; polarizations; reflectivity; soil moisture; surface roughness; temperature; vegetation; visible sensors data; visible spectrometer data; winter wheat; Infrared sensors; Infrared spectra; Microwave radiometry; Microwave sensors; Polarization; Radar measurements; Rough surfaces; Soil measurements; Surface roughness; Vegetation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
Type :
conf
DOI :
10.1109/IGARSS.2002.1026870
Filename :
1026870
Link To Document :
بازگشت