Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index
The boreal forest contains almost half the total carbon pool of world forest ecosystems, and so has a very significant role in global biogeochemical cycles. The flux of greenhouse gases in and out of these forests is influenced strongly by disturbances such as diseases, logging and predominantly fir...
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ftnerc:oai:nora.nerc.ac.uk:335 2024-06-09T07:44:24+00:00 Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index George, Charles Rowland, Clare Gerard, France Balzter, Heiko 2006 http://nora.nerc.ac.uk/id/eprint/335/ http://www.sciencedirect.com/science/journal/00344257 https://doi.org/10.1016/j.rse.2006.05.015 unknown George, Charles; Rowland, Clare orcid:0000-0002-0459-506X Gerard, France; Balzter, Heiko. 2006 Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index. Remote Sensing of Environment, 104. 346-359. https://doi.org/10.1016/j.rse.2006.05.015 <https://doi.org/10.1016/j.rse.2006.05.015> Atmospheric Sciences Publication - Article PeerReviewed 2006 ftnerc https://doi.org/10.1016/j.rse.2006.05.015 2024-05-15T08:39:04Z The boreal forest contains almost half the total carbon pool of world forest ecosystems, and so has a very significant role in global biogeochemical cycles. The flux of greenhouse gases in and out of these forests is influenced strongly by disturbances such as diseases, logging and predominantly fire. It is important to quantify these disturbances to enable the modelling of major greenhouse gases. However, because of the remoteness and vastness of the boreal forest, little data is available on the type, extent, frequency and severity of these disturbances in Siberia. For burnt areas, two of the more responsive wavelengths are the short wave infra-red (SWIR) and the near infra-red (NIR). These produce a vegetation index, the normalised difference SWIR (NDSWIR) capable of detecting retrospective disturbances. Here we combine the NDSWIR from MODIS imagery acquired in the summer of 2003 with thermal anomaly data from 1992 to 2003 to detect and date areas which burnt at some point between 1992 and 2003. The semi-automated method is called SWIR and Thermal ANomalies for Detecting Disturbances (STANDD) and is complemented by an Normalised Difference Vegetation Index (NDVI) differencing method using MODIS 2002 and 2003 imagery to ensure reliable detection of area burnt in the year of image acquisition (i.e. 2003). The area of this study covers approximately 3 million km2 stretching from Lake Baikal in the south to the Laptev Sea in the north, above the Arctic Circle. Landsat ETM+ images were used to validate the shape and areal extent of the burnt areas resulting in an 81% overall accuracy with a kappa coefficient of agreement of 0.63. Article in Journal/Newspaper Arctic laptev Laptev Sea Siberia Natural Environment Research Council: NERC Open Research Archive Arctic Laptev Sea Remote Sensing of Environment 104 3 346 359 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Atmospheric Sciences |
spellingShingle |
Atmospheric Sciences George, Charles Rowland, Clare Gerard, France Balzter, Heiko Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index |
topic_facet |
Atmospheric Sciences |
description |
The boreal forest contains almost half the total carbon pool of world forest ecosystems, and so has a very significant role in global biogeochemical cycles. The flux of greenhouse gases in and out of these forests is influenced strongly by disturbances such as diseases, logging and predominantly fire. It is important to quantify these disturbances to enable the modelling of major greenhouse gases. However, because of the remoteness and vastness of the boreal forest, little data is available on the type, extent, frequency and severity of these disturbances in Siberia. For burnt areas, two of the more responsive wavelengths are the short wave infra-red (SWIR) and the near infra-red (NIR). These produce a vegetation index, the normalised difference SWIR (NDSWIR) capable of detecting retrospective disturbances. Here we combine the NDSWIR from MODIS imagery acquired in the summer of 2003 with thermal anomaly data from 1992 to 2003 to detect and date areas which burnt at some point between 1992 and 2003. The semi-automated method is called SWIR and Thermal ANomalies for Detecting Disturbances (STANDD) and is complemented by an Normalised Difference Vegetation Index (NDVI) differencing method using MODIS 2002 and 2003 imagery to ensure reliable detection of area burnt in the year of image acquisition (i.e. 2003). The area of this study covers approximately 3 million km2 stretching from Lake Baikal in the south to the Laptev Sea in the north, above the Arctic Circle. Landsat ETM+ images were used to validate the shape and areal extent of the burnt areas resulting in an 81% overall accuracy with a kappa coefficient of agreement of 0.63. |
format |
Article in Journal/Newspaper |
author |
George, Charles Rowland, Clare Gerard, France Balzter, Heiko |
author_facet |
George, Charles Rowland, Clare Gerard, France Balzter, Heiko |
author_sort |
George, Charles |
title |
Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index |
title_short |
Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index |
title_full |
Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index |
title_fullStr |
Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index |
title_full_unstemmed |
Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index |
title_sort |
retrospective mapping of burnt areas in central siberia using a modification of the normalised difference water index |
publishDate |
2006 |
url |
http://nora.nerc.ac.uk/id/eprint/335/ http://www.sciencedirect.com/science/journal/00344257 https://doi.org/10.1016/j.rse.2006.05.015 |
geographic |
Arctic Laptev Sea |
geographic_facet |
Arctic Laptev Sea |
genre |
Arctic laptev Laptev Sea Siberia |
genre_facet |
Arctic laptev Laptev Sea Siberia |
op_relation |
George, Charles; Rowland, Clare orcid:0000-0002-0459-506X Gerard, France; Balzter, Heiko. 2006 Retrospective mapping of burnt areas in Central Siberia using a modification of the normalised difference water index. Remote Sensing of Environment, 104. 346-359. https://doi.org/10.1016/j.rse.2006.05.015 <https://doi.org/10.1016/j.rse.2006.05.015> |
op_doi |
https://doi.org/10.1016/j.rse.2006.05.015 |
container_title |
Remote Sensing of Environment |
container_volume |
104 |
container_issue |
3 |
container_start_page |
346 |
op_container_end_page |
359 |
_version_ |
1801373142318317568 |