@inproceedings{a24a1ad62f644d88b07351e680d00694,
title = "Indirect Estimation of Vegetation Contribution to Microwave Backscatter Via Triple-Frequency SAR Data",
abstract = "A coupled snow physics-radiative transfer forward-inversion modeling system was applied over snow-covered terrain in Grand Mesa and the Senator Beck Basin, Colorado, USA to estimate vegetation contributions to the total backscatter from the ground-snow-vegetation system from dual-frequency airborne SnowSAR (X- and Ku-bands) and Sentinel-1 C-band measurements. A simplified but comprehensive first-order microwave emission model (MEMLS-V) was iteratively inverted by a global optimizer using simulated annealing to retrieve unknown parameters and backscatter components from double-bounce, snowpack volume, and snow-ground interface. The retrieved parameters demonstrate high correlation with the observed SnowSAR signal dynamics tied to vegetation and snowpack heterogeneities. This suggests that the forward-inversion system accounting for complex multiple scattering within the ground-snow-vegetation system reliably regulated compensation effects of vegetation and backscatter at the snow-ground interface. The findings have useful practical implications for retrieving large-scale SWE in the northern hemisphere boreal forests from satellite-based radar measurements.",
keywords = "MEMLS, SnowSAR, forward-inversion modeling system, simulated annealing, vegetation heterogeneities",
author = "Yueqian Cao and Barros, {Ana P.}",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2023 ; Conference date: 16-07-2023 Through 21-07-2023",
year = "2023",
doi = "10.1109/IGARSS52108.2023.10281754",
language = "English (US)",
series = "International Geoscience and Remote Sensing Symposium (IGARSS)",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "3114--3117",
booktitle = "IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, Proceedings",
address = "United States",
}