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Filtering of digital terrain models by 2D Singular Spectrum Analysis

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
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), 81-94.

Record type: Article

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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Published date: 2007
Organisations: Southampton Wireless Group

Identifiers

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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Contributors

Author: Nina Golyandina
Author: Igor Florinsky
Author: Konstantin Usevich

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