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Permanent link (DOI): https://doi.org/10.7939/R3J398

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Retrieving surface peat moisture in an Albertan bog with Radarsat-2 Open Access

Descriptions

Other title
Subject/Keyword
remote sensing
peat surface moisture
carbon
peatland fire management
peatland
concordance correlation coefficient
SAR
RADARSAT-2
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Chen, Yingxiu
Supervisor and department
Flannigan, Mike (Renewable Resources)
Examining committee member and department
Thompson, Dan (Renewable Resources)
Gamon, John (Earth and Atmospheric Sciences and Biological Sciences)
Department
Department of Renewable Resources
Specialization
Forest Biology and Management
Date accepted
2013-09-28T22:05:36Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
Boreal peatlands are widely considered as an important carbon sink. Peat moisture is important for controlling carbon sequestration and smouldering combustion. Retrieving surface moisture is of great interest for carbon budget modelling and fire management in peatlands. To monitor at a large scale, Radarsat-2 was used to retrieve surface (0-5 cm) peat moisture in an Albertan ombrotrophic bog. Oven-dried peat cores, FDR probes (Theta probe) and TDR probes (CS616) were used for the field sampling of volumetric moisture content (VMC). Non-polarimetric analysis was performed to extract backscattering coefficients from Radarsat-2 images in NEST. The model was built with multiple linear regression in SAS. This approach shows promise for the burned plots (concordance correlation coefficient ρ: 0.435; accuracy: 0.997), followed by all sampled plots (ρ: -0.254; accuracy: 0.962) and unburned plots (ρ: 0.153; accuracy: 0.821).
Language
English
DOI
doi:10.7939/R3J398
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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