DocumentCode :
1883850
Title :
Closed loop brightness temperature data inversion for the retrieval of soil hydraulic properties
Author :
Dimitrov, M. ; Vanderborght, J. ; Jadoon, K.Z. ; Schwank, M. ; Weihermueller, L. ; Vereecken, H.
Author_Institution :
Inst. of Bio- & Geosci.: Agrosphere (IBG 3), Res. Center Julich, Julich, Germany
fYear :
2011
fDate :
24-29 July 2011
Firstpage :
1219
Lastpage :
1222
Abstract :
We combined the radiative transfer approach to simulate L band brightness temperatures at 1.4 GHz with a hydrological simulator (HYDRUS ID) and a global optimization routine SCE-UA to estimate the Mualem van Genuchten (MVG) soil hydraulic parameters from time lapse L-band brightness temperatures and in situ soil moisture measurements at different depths. The measurements were collected from a bare soil plot, prepared after ploughing. First, we briefly described the coupled inversion procedure and compared the results with measured brightness temperatures and in-situ soil moisture data. Second, estimated soil hydraulic parameters were compared with laboratory derived ones. The results suggest that the proposed method is promising for the effective characterization of the soil hydraulic properties and the determination of soil moisture within the top soil layer.
Keywords :
geophysical signal processing; hydrological techniques; inverse problems; moisture; radar signal processing; radiative transfer; remote sensing by radar; soil; HYDRUS 1D hydrological simulator; Mualem van Genuchten soil hydraulic parameter; SCE-UA global optimization routine; brightness temperature data; closed loop data inversion; coupled inversion procedure; frequency 1.4 GHz; in situ soil moisture measurements; radiative transfer approach; soil hydraulic parameter estimation; soil hydraulic property retrieval; time lapse L-band brightness temperatures; top soil layer; Brightness temperature; Dielectrics; Mathematical model; Soil measurements; Soil moisture; Temperature measurement; brightness temperature; passive microwave remote sensing; soil moisture; soil properties;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
ISSN :
2153-6996
Print_ISBN :
978-1-4577-1003-2
Type :
conf
DOI :
10.1109/IGARSS.2011.6049418
Filename :
6049418
Link To Document :
بازگشت