Vegetation mapping of Svalbard utilising Landsat TM/ETM+ data
ABSTRACT The overall objective of this paper is to present and discuss the most recently developed vegetation map for Svalbard, Arctic Norway. The map is based on satellite images in which several Landsat TM/ETM+ images were processed through six operational stages involving: (1) automatic image cla...
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crcambridgeupr:10.1017/s0032247411000647 2024-09-15T18:31:19+00:00 Vegetation mapping of Svalbard utilising Landsat TM/ETM+ data Johansen, Bernt E. Karlsen, Stein Rune Tømmervik, Hans 2011 http://dx.doi.org/10.1017/s0032247411000647 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247411000647 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Polar Record volume 48, issue 1, page 47-63 ISSN 0032-2474 1475-3057 journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0032247411000647 2024-08-28T04:03:14Z ABSTRACT The overall objective of this paper is to present and discuss the most recently developed vegetation map for Svalbard, Arctic Norway. The map is based on satellite images in which several Landsat TM/ETM+ images were processed through six operational stages involving: (1) automatic image classification, (2) spectral similarity analysis, (3) generation of classified image mosaics, (4) ancillary data analysis, (5) contextual correction, and (6) standardisation of the final map products. The developed map is differentiated into 18 map units interpreted from 37 spectral classes. Among the 18 units separated, six of the units comprise rivers, lakes and inland waters, glaciers, as well as non- to sparsely vegetated areas. The map unit 7 is a result of shadow effects and different types of distortions in the satellite image. The vegetation of the remaining eleven units varies from dense marshes and moss tundra communities to sparsely vegetated polar deserts and moist gravel snowbeds. The accuracy of the map is evaluated in areas were access to traditional maps have been available. The vegetation density and fertility is reflected in computed NDVI values. The map product is in digital format, which gives the opportunity to produce maps in different scales. A map sheet portraying the entire archipelago is one of the main products from this study, produced at a scale of 1:500,000. Article in Journal/Newspaper Polar Record Svalbard Tundra Cambridge University Press Polar Record 48 1 47 63 |
institution |
Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
ABSTRACT The overall objective of this paper is to present and discuss the most recently developed vegetation map for Svalbard, Arctic Norway. The map is based on satellite images in which several Landsat TM/ETM+ images were processed through six operational stages involving: (1) automatic image classification, (2) spectral similarity analysis, (3) generation of classified image mosaics, (4) ancillary data analysis, (5) contextual correction, and (6) standardisation of the final map products. The developed map is differentiated into 18 map units interpreted from 37 spectral classes. Among the 18 units separated, six of the units comprise rivers, lakes and inland waters, glaciers, as well as non- to sparsely vegetated areas. The map unit 7 is a result of shadow effects and different types of distortions in the satellite image. The vegetation of the remaining eleven units varies from dense marshes and moss tundra communities to sparsely vegetated polar deserts and moist gravel snowbeds. The accuracy of the map is evaluated in areas were access to traditional maps have been available. The vegetation density and fertility is reflected in computed NDVI values. The map product is in digital format, which gives the opportunity to produce maps in different scales. A map sheet portraying the entire archipelago is one of the main products from this study, produced at a scale of 1:500,000. |
format |
Article in Journal/Newspaper |
author |
Johansen, Bernt E. Karlsen, Stein Rune Tømmervik, Hans |
spellingShingle |
Johansen, Bernt E. Karlsen, Stein Rune Tømmervik, Hans Vegetation mapping of Svalbard utilising Landsat TM/ETM+ data |
author_facet |
Johansen, Bernt E. Karlsen, Stein Rune Tømmervik, Hans |
author_sort |
Johansen, Bernt E. |
title |
Vegetation mapping of Svalbard utilising Landsat TM/ETM+ data |
title_short |
Vegetation mapping of Svalbard utilising Landsat TM/ETM+ data |
title_full |
Vegetation mapping of Svalbard utilising Landsat TM/ETM+ data |
title_fullStr |
Vegetation mapping of Svalbard utilising Landsat TM/ETM+ data |
title_full_unstemmed |
Vegetation mapping of Svalbard utilising Landsat TM/ETM+ data |
title_sort |
vegetation mapping of svalbard utilising landsat tm/etm+ data |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0032247411000647 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247411000647 |
genre |
Polar Record Svalbard Tundra |
genre_facet |
Polar Record Svalbard Tundra |
op_source |
Polar Record volume 48, issue 1, page 47-63 ISSN 0032-2474 1475-3057 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0032247411000647 |
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Polar Record |
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48 |
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63 |
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1810472951591469056 |