Filtering of digital terrain models by 2D Singular Spectrum Analysis
Filtering of digital terrain models by 2D Singular Spectrum Analysis
Singular Spectrum Analysis (SSA) has been approved as a model-free technique to analyse time series. SSA can solve different problems such as decomposition into a sum of trend, periodicities, and noise, smoothing, and others. In this paper, we validate abilities of 2D-SSA (the extension of SSA to analyse two-dimensional scalar fields) to treat digital terrain models (DTMs). The study is exemplified by a 30-arc-second digital elevation model of a part of South America derived from GTOPO30. Results demonstrate that 2D-SSA is an efficient method to denoise and generalise DTMs. It can be also used to decompose a topographic surface into components of continental, regional, and local scales.
81-94
Golyandina, Nina
3e6cc74b-7daf-4aeb-adc3-f59c2f967f23
Florinsky, Igor
8bc391f6-5d9e-47b5-af15-3a382629c2fd
Usevich, Konstantin
1ab9effb-9945-40b6-94d7-f94dd0339110
2007
Golyandina, Nina
3e6cc74b-7daf-4aeb-adc3-f59c2f967f23
Florinsky, Igor
8bc391f6-5d9e-47b5-af15-3a382629c2fd
Usevich, Konstantin
1ab9effb-9945-40b6-94d7-f94dd0339110
Golyandina, Nina, Florinsky, Igor and Usevich, Konstantin
(2007)
Filtering of digital terrain models by 2D Singular Spectrum Analysis.
International Journal of Ecology & Development, 8 (F07), .
Abstract
Singular Spectrum Analysis (SSA) has been approved as a model-free technique to analyse time series. SSA can solve different problems such as decomposition into a sum of trend, periodicities, and noise, smoothing, and others. In this paper, we validate abilities of 2D-SSA (the extension of SSA to analyse two-dimensional scalar fields) to treat digital terrain models (DTMs). The study is exemplified by a 30-arc-second digital elevation model of a part of South America derived from GTOPO30. Results demonstrate that 2D-SSA is an efficient method to denoise and generalise DTMs. It can be also used to decompose a topographic surface into components of continental, regional, and local scales.
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2DSSA_app_en.pdf
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Published date: 2007
Organisations:
Southampton Wireless Group
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Local EPrints ID: 273004
URI: http://eprints.soton.ac.uk/id/eprint/273004
PURE UUID: 9f0c04f1-edcd-4928-a747-724b4a29f964
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Date deposited: 15 Nov 2011 22:11
Last modified: 14 Mar 2024 10:16
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Author:
Nina Golyandina
Author:
Igor Florinsky
Author:
Konstantin Usevich
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