Discrimination of Conifer Height, Age and Crown Closure Classes Using Landsat-5 TM Imagery in the Canadian Northwest Territories
Empirical relationships between forest stand attributes and Landsat-5 Thematic Mapper spectral response were developed in order to assess its informational value in support of forest inventory operations in the Northwest Territories. An existing large-area classification procedure, based on a superv...
Published in: | International Journal of Remote Sensing |
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Online Access: | https://digitalcommons.usu.edu/aspen_bib/203 https://doi.org/10.1080/01431160210144589 |
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ftutahsudc:oai:digitalcommons.usu.edu:aspen_bib-1203 2023-10-01T03:58:24+02:00 Discrimination of Conifer Height, Age and Crown Closure Classes Using Landsat-5 TM Imagery in the Canadian Northwest Territories Franklin, S. E. Hall, R. J. Smith, L. Gerylo, G. R. Taylor & Francis 2003-01-01T08:00:00Z https://digitalcommons.usu.edu/aspen_bib/203 https://doi.org/10.1080/01431160210144589 unknown Hosted by Utah State University Libraries https://digitalcommons.usu.edu/aspen_bib/203 doi:10.1080/01431160210144589 https://doi.org/10.1080/01431160210144589 Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. Aspen Bibliography Terrestrial ecology vascular plants northwest regions Landsat imagery Life Sciences text 2003 ftutahsudc https://doi.org/10.1080/01431160210144589 2023-09-07T17:38:03Z Empirical relationships between forest stand attributes and Landsat-5 Thematic Mapper spectral response were developed in order to assess its informational value in support of forest inventory operations in the Northwest Territories. An existing large-area classification procedure, based on a supervised methodology, has been able to generate classes of white spruce and jack pine. Within individual forest species groups, spectral variability related to differences in crown closure, height and age is of interest to forest managers in the region. The objective of this study was to determine the accuracy with which stands within the white spruce and jack pine classes could be further separated into two stand height classes (<15 m and S 15 m), two age classes (< 100 years and S 100 years) and two crown closure classes (<30% and S 30%) with a single (summer) Landsat-5 Thematic Mapper (TM) image. Discrimination generally improved with the addition of spectral texture measures where independently assessed accuracies ranged from 60 to 90%. A look-up table was devised for conifer-dominated areas (> 80% dominant species) which could subsequently be assigned for height, age and crown closure class values based on Landsat TM spectral response patterns. Text Northwest Territories Utah State University: DigitalCommons@USU Northwest Territories International Journal of Remote Sensing 24 9 1823 1834 |
institution |
Open Polar |
collection |
Utah State University: DigitalCommons@USU |
op_collection_id |
ftutahsudc |
language |
unknown |
topic |
Terrestrial ecology vascular plants northwest regions Landsat imagery Life Sciences |
spellingShingle |
Terrestrial ecology vascular plants northwest regions Landsat imagery Life Sciences Franklin, S. E. Hall, R. J. Smith, L. Gerylo, G. R. Discrimination of Conifer Height, Age and Crown Closure Classes Using Landsat-5 TM Imagery in the Canadian Northwest Territories |
topic_facet |
Terrestrial ecology vascular plants northwest regions Landsat imagery Life Sciences |
description |
Empirical relationships between forest stand attributes and Landsat-5 Thematic Mapper spectral response were developed in order to assess its informational value in support of forest inventory operations in the Northwest Territories. An existing large-area classification procedure, based on a supervised methodology, has been able to generate classes of white spruce and jack pine. Within individual forest species groups, spectral variability related to differences in crown closure, height and age is of interest to forest managers in the region. The objective of this study was to determine the accuracy with which stands within the white spruce and jack pine classes could be further separated into two stand height classes (<15 m and S 15 m), two age classes (< 100 years and S 100 years) and two crown closure classes (<30% and S 30%) with a single (summer) Landsat-5 Thematic Mapper (TM) image. Discrimination generally improved with the addition of spectral texture measures where independently assessed accuracies ranged from 60 to 90%. A look-up table was devised for conifer-dominated areas (> 80% dominant species) which could subsequently be assigned for height, age and crown closure class values based on Landsat TM spectral response patterns. |
author2 |
Taylor & Francis |
format |
Text |
author |
Franklin, S. E. Hall, R. J. Smith, L. Gerylo, G. R. |
author_facet |
Franklin, S. E. Hall, R. J. Smith, L. Gerylo, G. R. |
author_sort |
Franklin, S. E. |
title |
Discrimination of Conifer Height, Age and Crown Closure Classes Using Landsat-5 TM Imagery in the Canadian Northwest Territories |
title_short |
Discrimination of Conifer Height, Age and Crown Closure Classes Using Landsat-5 TM Imagery in the Canadian Northwest Territories |
title_full |
Discrimination of Conifer Height, Age and Crown Closure Classes Using Landsat-5 TM Imagery in the Canadian Northwest Territories |
title_fullStr |
Discrimination of Conifer Height, Age and Crown Closure Classes Using Landsat-5 TM Imagery in the Canadian Northwest Territories |
title_full_unstemmed |
Discrimination of Conifer Height, Age and Crown Closure Classes Using Landsat-5 TM Imagery in the Canadian Northwest Territories |
title_sort |
discrimination of conifer height, age and crown closure classes using landsat-5 tm imagery in the canadian northwest territories |
publisher |
Hosted by Utah State University Libraries |
publishDate |
2003 |
url |
https://digitalcommons.usu.edu/aspen_bib/203 https://doi.org/10.1080/01431160210144589 |
geographic |
Northwest Territories |
geographic_facet |
Northwest Territories |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_source |
Aspen Bibliography |
op_relation |
https://digitalcommons.usu.edu/aspen_bib/203 doi:10.1080/01431160210144589 https://doi.org/10.1080/01431160210144589 |
op_rights |
Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. |
op_doi |
https://doi.org/10.1080/01431160210144589 |
container_title |
International Journal of Remote Sensing |
container_volume |
24 |
container_issue |
9 |
container_start_page |
1823 |
op_container_end_page |
1834 |
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1778531131850752000 |