Multisensor NDVI-Based Monitoring of the Tundra-Taiga Interface (Mealy Mountains, Labrador, Canada)
The analysis of a series of five normalized difference vegetation index (NDVI) images produced information about a Labrador (Canada) portion of the tundra-taiga interface. The twenty-five year observation period ranges from 1983 to 2008. The series composed of Landsat, SPOT and ASTER images, provide...
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ftmdpi:oai:mdpi.com:/2072-4292/5/3/1066/ 2023-08-20T04:10:03+02:00 Multisensor NDVI-Based Monitoring of the Tundra-Taiga Interface (Mealy Mountains, Labrador, Canada) Élizabeth Simms Heather Ward agris 2013-03-01 application/pdf https://doi.org/10.3390/rs5031066 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs5031066 https://creativecommons.org/licenses/by/3.0/ Remote Sensing; Volume 5; Issue 3; Pages: 1066-1090 ASTER Canada Labrador Landsat multisensor multitemporal Normalized Difference Vegetation Index (NDVI) Subarctic tree line tundra-taiga interface SPOT Text 2013 ftmdpi https://doi.org/10.3390/rs5031066 2023-07-31T20:31:44Z The analysis of a series of five normalized difference vegetation index (NDVI) images produced information about a Labrador (Canada) portion of the tundra-taiga interface. The twenty-five year observation period ranges from 1983 to 2008. The series composed of Landsat, SPOT and ASTER images, provided insight into regional scale characteristics of the tundra-taiga interface that is usually monitored from coarse resolution images. The image set was analyzed by considering an ordinal classification of the NDVI to account for the cumulative effect of differences of near-infrared spectral resolutions, the temperature anomalies, and atmospheric conditions. An increasing trend of the median values in the low, intermediate and high NDVI classes is clearly marked while accounting for variations attributed to cross-sensor radiometry, phenology and atmospheric disturbances. An encroachment of the forest on the tundra for the whole study area was estimated at 0 to 60 m, depending on the period of observation, as calculated by the difference between the median retreat and advance of an estimated location of the tree line. In small sections, advances and retreats of up to 320 m are reported for the most recent four- and seven-year periods of observations. Text Subarctic taiga Tundra MDPI Open Access Publishing Canada Mealy Mountains ENVELOPE(-59.465,-59.465,53.383,53.383) Remote Sensing 5 3 1066 1090 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
ASTER Canada Labrador Landsat multisensor multitemporal Normalized Difference Vegetation Index (NDVI) Subarctic tree line tundra-taiga interface SPOT |
spellingShingle |
ASTER Canada Labrador Landsat multisensor multitemporal Normalized Difference Vegetation Index (NDVI) Subarctic tree line tundra-taiga interface SPOT Élizabeth Simms Heather Ward Multisensor NDVI-Based Monitoring of the Tundra-Taiga Interface (Mealy Mountains, Labrador, Canada) |
topic_facet |
ASTER Canada Labrador Landsat multisensor multitemporal Normalized Difference Vegetation Index (NDVI) Subarctic tree line tundra-taiga interface SPOT |
description |
The analysis of a series of five normalized difference vegetation index (NDVI) images produced information about a Labrador (Canada) portion of the tundra-taiga interface. The twenty-five year observation period ranges from 1983 to 2008. The series composed of Landsat, SPOT and ASTER images, provided insight into regional scale characteristics of the tundra-taiga interface that is usually monitored from coarse resolution images. The image set was analyzed by considering an ordinal classification of the NDVI to account for the cumulative effect of differences of near-infrared spectral resolutions, the temperature anomalies, and atmospheric conditions. An increasing trend of the median values in the low, intermediate and high NDVI classes is clearly marked while accounting for variations attributed to cross-sensor radiometry, phenology and atmospheric disturbances. An encroachment of the forest on the tundra for the whole study area was estimated at 0 to 60 m, depending on the period of observation, as calculated by the difference between the median retreat and advance of an estimated location of the tree line. In small sections, advances and retreats of up to 320 m are reported for the most recent four- and seven-year periods of observations. |
format |
Text |
author |
Élizabeth Simms Heather Ward |
author_facet |
Élizabeth Simms Heather Ward |
author_sort |
Élizabeth Simms |
title |
Multisensor NDVI-Based Monitoring of the Tundra-Taiga Interface (Mealy Mountains, Labrador, Canada) |
title_short |
Multisensor NDVI-Based Monitoring of the Tundra-Taiga Interface (Mealy Mountains, Labrador, Canada) |
title_full |
Multisensor NDVI-Based Monitoring of the Tundra-Taiga Interface (Mealy Mountains, Labrador, Canada) |
title_fullStr |
Multisensor NDVI-Based Monitoring of the Tundra-Taiga Interface (Mealy Mountains, Labrador, Canada) |
title_full_unstemmed |
Multisensor NDVI-Based Monitoring of the Tundra-Taiga Interface (Mealy Mountains, Labrador, Canada) |
title_sort |
multisensor ndvi-based monitoring of the tundra-taiga interface (mealy mountains, labrador, canada) |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2013 |
url |
https://doi.org/10.3390/rs5031066 |
op_coverage |
agris |
long_lat |
ENVELOPE(-59.465,-59.465,53.383,53.383) |
geographic |
Canada Mealy Mountains |
geographic_facet |
Canada Mealy Mountains |
genre |
Subarctic taiga Tundra |
genre_facet |
Subarctic taiga Tundra |
op_source |
Remote Sensing; Volume 5; Issue 3; Pages: 1066-1090 |
op_relation |
https://dx.doi.org/10.3390/rs5031066 |
op_rights |
https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.3390/rs5031066 |
container_title |
Remote Sensing |
container_volume |
5 |
container_issue |
3 |
container_start_page |
1066 |
op_container_end_page |
1090 |
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1774723950308229120 |