Comparison with CLPX II airborne data using DMRT model
By: X. Xu, D. Liang, K.M. Andreadis, L. Tsang, and E.G. Josberger
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Abstract
In this paper, we considered a physical-based model which use numerical solution of Maxwell Equations in three-dimensional simulations and apply into Dense Media Radiative Theory (DMRT). The model is validated in two specific dataset from the second Cold Land Processes Experiment (CLPX II) at Alaska and Colorado. The data were all obtain by the Ku-band (13.95GHz) observations using airborne imaging polarimetric scatterometer (POLSCAT). Snow is a densely packed media. To take into account the collective scattering and incoherent scattering, analytical Quasi-Crystalline Approximation (QCA) and Numerical Maxwell Equation Method of 3-D simulation (NMM3D) are used to calculate the extinction coefficient and phase matrix. DMRT equations were solved by iterative solution up to 2nd order for the case of small optical thickness and full multiple scattering solution by decomposing the diffuse intensities into Fourier series was used when optical thickness exceed unity. It was shown that the model predictions agree with the field experiment not only co-polarization but also cross-polarization. For Alaska region, the input snow structure data was obtain by the in situ ground observations, while for Colorado region, we combined the VIC model to get the snow profile. ??2009 IEEE.
Suggested Citation
Xu, X., Liang, D., Andreadis, K., Tsang, L., and Josberger, E., 2009, Comparison with CLPX II airborne data using DMRT model, in International Geoscience and Remote Sensing Symposium (IGARSS), v. 2, Cape Town, 12 July 2009 through 17 July 2009, https://doi.org/10.1109/IGARSS.2009.5418025.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Comparison with CLPX II airborne data using DMRT model |
| ISBN | 9781424433957 |
| DOI | 10.1109/IGARSS.2009.5418025 |
| Volume | 2 |
| Year Published | 2009 |
| Language | English |
| Larger Work Title | International Geoscience and Remote Sensing Symposium (IGARSS) |
| Conference Title | 2009 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2009 |
| Conference Location | Cape Town |
| Conference Date | 12 July 2009 through 17 July 2009 |