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Development of semi-physical model for microwave and optical wavelengths

Baris, Ismail (2019) Development of semi-physical model for microwave and optical wavelengths. Master's, Friedrich-Schiller-Universität Jena.

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Abstract

This work presents a method of physical integration of active passive microwave interaction models to forward model the backscattering coefficient (BSC) for L-band, brightness temperature (TB) for L- and C-Band. To model these regions a model named SPIN (Spectrum Invariant Interaction) model is introduced. The model is obtained by combining vector and scalar radiative transfer (VRT, SRT) equations, respectively. The equations of SPIN model are flexible with respect to selected coordinate systems and are solved kernel based, which ensures a highly invertible behavior for futures inversion attempts. The application of the model is shown using the measurements during the growing cycle of corn from the Eleventh Microwave, Water, and Energy Balance Experiment (MicroWEX-11). The forward modelled BSC values for L-band correlate strongly with the vertical and horizontal polarization measurements with a uRMSD (unbiased Root Mean Square Distance) of 0.40 [dB] and 0.37 [dB], respectively. In addition, the modeled brightness temperature for both polarization states at C-band are also highly correlated with the MicroWEX-11 measurements (uRMSD: 1.55 [K]) and are less correlated with L-band (uRMSD for vertical polarization: 1.19 [K] and uRMSD for horizontal polarization: 4.67 [K]). Experimentally, the SPIN model is also applied to the optical region. For the optical region the results are compared with the PROSAIL model. The optical results are consistent with the results of other optical models (Pearson 0.99, R2 0.98) like PROSAIL.

Item URL in elib:https://elib.dlr.de/121447/
Document Type:Thesis (Master's)
Title:Development of semi-physical model for microwave and optical wavelengths
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Baris, IsmailIsmail.Baris (at) dlr.deUNSPECIFIED
Date:28 February 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:116
Status:Published
Keywords:Integration, radiative transfer, model, microwave, optics
Institution:Friedrich-Schiller-Universität Jena
Department:Institut für Geoinformatik
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 - Security-relevant Earth Observation
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Reconnaissance and Security
Deposited By: Baris, Ismail
Deposited On:22 Aug 2018 08:19
Last Modified:16 Jul 2021 17:36

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