Bhogapurapu, Narayanarao and Dey, Subhadip and Bhattacharya, Avik and Lopez-Martinez, Carlos and Hajnsek, Irena and Rao, Y. S. (2022) Soil Permittivity Estimation over Croplands Using Polsar Data. In: 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022, 8000 -8003. IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2022-07-17 - 2022-07-22, Kuala Lumpur, Malaysia. doi: 10.1109/IGARSS46834.2022.9883708. ISBN 978-166542792-0.
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Official URL: https://ieeexplore.ieee.org/document/9884442
Abstract
Polarimetric Synthetic Aperture Radar (SAR) data has been extensively used to estimate soil permittivity because of its high sensitivity to the dielectric properties of the target. However, the presence of vegetation cover induces bias in the permittivity estimates. This work utilizes the scattering-type parameters: alpha (α¯¯¯) and theta (θFP) to estimate soil permittivity using the X-Bragg as the dominant surface scattering model. A theoretical study ascertains that the recently proposed θFP is fairly robust towards the depolarizing component in the X-Bragg model. Hence, it is expected to produce better inversion accuracy. This study analyzes major phenology stages of Canola using the UAVSAR full-pol SAR data and the ground measurements acquired during the SMAPVEX12 campaign over Manitoba, Canada. The proposed method achieved an RMSE of 5.9 for soil permittivity with a Pearson coefficient, r=0.83 . Further, the temporal trend of the soil permittivity estimates also agrees with in-situ measurements for the entire timeframe.
Item URL in elib: | https://elib.dlr.de/192960/ | ||||||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||||||
Title: | Soil Permittivity Estimation over Croplands Using Polsar Data | ||||||||||||||||||||||||||||
Authors: |
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Date: | July 2022 | ||||||||||||||||||||||||||||
Journal or Publication Title: | 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022 | ||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||
DOI: | 10.1109/IGARSS46834.2022.9883708 | ||||||||||||||||||||||||||||
Page Range: | 8000 -8003 | ||||||||||||||||||||||||||||
Publisher: | IEEE | ||||||||||||||||||||||||||||
Series Name: | IEEE Explore | ||||||||||||||||||||||||||||
ISBN: | 978-166542792-0 | ||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||
Keywords: | Soil permittivity, Canola, PolSAR, X-Bragg, scattering-type parameter | ||||||||||||||||||||||||||||
Event Title: | IEEE International Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||||||||||||||||||
Event Location: | Kuala Lumpur, Malaysia | ||||||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||||||
Event Dates: | 2022-07-17 - 2022-07-22 | ||||||||||||||||||||||||||||
Organizer: | IEEE | ||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||||||||||||||||||
DLR - Research theme (Project): | R - Polarimetric SAR Interferometry HR | ||||||||||||||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||||||||||||||
Institutes and Institutions: | Microwaves and Radar Institute > Radar Concepts | ||||||||||||||||||||||||||||
Deposited By: | Radzuweit, Sibylle | ||||||||||||||||||||||||||||
Deposited On: | 09 Jan 2023 07:52 | ||||||||||||||||||||||||||||
Last Modified: | 13 Jan 2023 15:20 |
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