Title :
Soil moisture and vegetation observations during SGP99 using the PALS airborne microwave radiometer-radar system
Author :
Njoku, Eni ; Wilson, W. ; Yueh, S. ; Jackson, T. ; Lakshmi, V.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The Passive/Active L/S-band (PALS) airborne microwave sensor was flown for the first time during the 1999 Southern Great Plains (SGP99) experiment. The objective was to acquire a dataset for studying a combined radiometer-radar multifrequency, multipolarization approach to soil moisture sensing under varied terrain conditions. Six days of PALS flight data were acquired over the Little Washita and El Reno areas in Oklahoma, in conjunction with ground-based soil and vegetation in-situ sampling. The data illustrate the different sensitivities of the PALS channels to soil moisture, temperature, surface roughness, and vegetation cover, and will provide a basis for development of passive and active multichannel algorithms for soil moisture sensing
Keywords :
airborne radar; hydrological techniques; moisture measurement; radiometry; remote sensing; remote sensing by radar; soil; terrain mapping; AD 1999; El Reno; L-band; Little Washita; Oklahoma; PALS; S-band; SGP99; SHF; Southern Great Plains experiment; UHF; USA; United States; airborne method; airborne microwave radiometer-radar system; geophysical measurement technique; hydrology; microwave radiometry; multifrequency; multipolarization; radar remote sensing; remote sensing; soil moisture; vegetation mapping; Frequency; Instruments; Microwave radiometry; Microwave sensors; Polarization; Rough surfaces; Soil measurements; Soil moisture; Surface roughness; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-6359-0
DOI :
10.1109/IGARSS.2000.858019
