Retrieval of soil moisture profile by combined C-band scatterometer data and a surface hydrological model

Claudia Notarnicola; Angelo Canio D'Alessio; Francesco Posa; Vincenzo Sabatelli; Domenico Casarano

doi:10.1117/12.410648

21 December 2000 Retrieval of soil moisture profile by combined C-band scatterometer data and a surface hydrological model

Claudia Notarnicola, Angelo Canio D'Alessio, Francesco Posa, Vincenzo Sabatelli, Domenico Casarano

Author Affiliations +

Proceedings Volume 4173, SAR Image Analysis, Modeling, and Techniques III; (2000) https://doi.org/10.1117/12.410648
Event: Europto Remote Sensing, 2000, Barcelona, Spain

Abstract

The objective of this work is to develop a method to use radar scatterometer data and a hydrological model in order to retrieve soil behaviour at a level greater than C-band microwave penetration depth. For microwave measurements a C-band FM-CW scatterometer has been employed in two campaigns; the device is able to provide backscattering coefficients in the range of+10 dB and -40 dB for incidence angles between 10° and 60°. Subsequently, microwave scatterometer data have been analysed to estimate their sensitivity to the soil moisture patterns of topsoil comparing them with ground truth measurements. For the validation of these radar data, a coupled heat and moisture balance model has been run to predict the hydrological behaviour of the same topsoil starting from point ground truth measurements. In a second run, soil moisture values derived from scatterometer data should have been used for the initialisation of the model. First attempts have been carried out to propagate the surface physical parameters to unreachable soil layers, such as vertical soil moisture profiles.

Citation Download Citation

Claudia Notarnicola, Angelo Canio D'Alessio, Francesco Posa, Vincenzo Sabatelli, and Domenico Casarano "Retrieval of soil moisture profile by combined C-band scatterometer data and a surface hydrological model", Proc. SPIE 4173, SAR Image Analysis, Modeling, and Techniques III, (21 December 2000); https://doi.org/10.1117/12.410648

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available