TY - JOUR
T1 - Remote sensing of surface soil moisture from a spaceborne SAR sensor over the Sele plain
AU - D'Urso, Guido
AU - Giacomelli, Andrea
AU - Mancim, Marco
AU - Troch, Peter
N1 - Funding Information:
The authors have equally contributed to this research work, which was supported by EEC grant No. EV5VCT94-0446 (DG 12 DTEE)
Funding Information:
The authors are grateful to Dr. M. Albani and his staff at ESA-ESRIN in Frascati for providing the ERS-1 data and to Dr. T. Heimovaara of the Landscape and Environmental Research Group, University of Amsterdam, for the TDR acquisition and analysis software. Finally we thank E. Altese and 0. Bolognani for the software implementation of the Sigma filter. The authors have equally contributed to this research work, which was supported by EEC grant No. EV5V-
Publisher Copyright:
© 1995 SPIE. All rights reserved.
PY - 1995/1/31
Y1 - 1995/1/31
N2 - Backscattering data obtained from ERS-1 SAR imagery are used to verify the ability to detect field scale spatial and temporal variations of surface soil moisture from spaceborne microwave sensors, and to test sub-field scale detection capability. The investigated area is part of the Sele basin, in southern Italy. For two dates, corresponding to satellite overflights of the area during November, 1993, Time Domain Reflectometry (TDR) measurements were taken over a dense sampling grid in two bare soil fields, in order to acquire ground-truth information for soil moisture in the upper 10 cm soil layer. Statistical analysis shows a good agreement between the two types of data at the field scale; at the sub-field scale, a similarity in the spatial structure of TDR and radar signal is found through cross-covariance and covariance analysis. In addition, one of the dates gives the possibility of observing the response of the SAR sensor and of the TDR for a field showing quasi-uniform ponding conditions.
AB - Backscattering data obtained from ERS-1 SAR imagery are used to verify the ability to detect field scale spatial and temporal variations of surface soil moisture from spaceborne microwave sensors, and to test sub-field scale detection capability. The investigated area is part of the Sele basin, in southern Italy. For two dates, corresponding to satellite overflights of the area during November, 1993, Time Domain Reflectometry (TDR) measurements were taken over a dense sampling grid in two bare soil fields, in order to acquire ground-truth information for soil moisture in the upper 10 cm soil layer. Statistical analysis shows a good agreement between the two types of data at the field scale; at the sub-field scale, a similarity in the spatial structure of TDR and radar signal is found through cross-covariance and covariance analysis. In addition, one of the dates gives the possibility of observing the response of the SAR sensor and of the TDR for a field showing quasi-uniform ponding conditions.
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U2 - 10.1117/12.200729
DO - 10.1117/12.200729
M3 - Conference article
AN - SCOPUS:0348153804
SN - 0277-786X
VL - 2314
SP - 516
EP - 524
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
T2 - Multispectral and Microwave Sensing of Forestry, Hydrology, and Natural Resources 1994
Y2 - 26 September 1994 through 30 September 1994
ER -