Raster Circumpolar Arctic Vegetation Map
Authors: Martha K. Raynolds, Donald A. Walker, Andrew Balser, Christian Bay, Mitch Campbell, Mikhail M. Cherosov, Fred J. A. Daniëls, Pernille Bronken Eidesen, Ksenia A. Ermokhina, Gerald V. Frost, Birgit Jedrzejek, M. Torre Jorgenson, Blair E. Kennedy, Sergei S. Kholod, Igor A. Lavrinenko, Olga V....
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Online Access: | https://dx.doi.org/10.17632/c4xj5rv6kv.1 https://data.mendeley.com/datasets/c4xj5rv6kv/1 |
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ftdatacite:10.17632/c4xj5rv6kv.1 2023-05-15T14:52:05+02:00 Raster Circumpolar Arctic Vegetation Map Raynolds, Martha 2019 https://dx.doi.org/10.17632/c4xj5rv6kv.1 https://data.mendeley.com/datasets/c4xj5rv6kv/1 unknown Mendeley https://dx.doi.org/10.17632/c4xj5rv6kv Attribution-NonCommercial 3.0 Unported info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc/3.0 CC-BY-NC Arctic Tundra Vegetation Mapping Land Cover Analysis Satellite Mapping dataset Dataset 2019 ftdatacite https://doi.org/10.17632/c4xj5rv6kv.1 https://doi.org/10.17632/c4xj5rv6kv 2021-11-05T12:55:41Z Authors: Martha K. Raynolds, Donald A. Walker, Andrew Balser, Christian Bay, Mitch Campbell, Mikhail M. Cherosov, Fred J. A. Daniëls, Pernille Bronken Eidesen, Ksenia A. Ermokhina, Gerald V. Frost, Birgit Jedrzejek, M. Torre Jorgenson, Blair E. Kennedy, Sergei S. Kholod, Igor A. Lavrinenko, Olga V. Lavrinenko, Borgþór Magnússon, Nadezhda V. Matveyeva, Sigmar Metúsalemsson, Lennart Nilsen, Ian Olthof, Igor N. Pospelov, Elena B. Pospelova, Darren Pouliot, Vladimir Razzhivin, Gabriela Schaepman-Strub, Jozef Šibík, Mikhail Yu. Telyatnikov, Elena Troeva. Land cover maps are the basic data layer required for understanding and modeling ecological patterns and processes. The Circumpolar Arctic Vegetation Map (CAVM), produced in 2003, has been widely used as a base map for studies in the arctic tundra biome. However, the relatively coarse resolution and vector format of the map were not compatible with many other data sets. We present a new version of the CAVM, building on the strengths of the original map, while providing a finer spatial resolution, raster format, and improved mapping. The Raster CAVM uses the legend, extent and projection of the original CAVM. The legend has 16 vegetation types, glacier, saline water, freshwater, and non-arctic land. The Raster CAVM divides the original rock-water-vegetation complex map unit that mapped the Canadian Shield into two map units, distinguishing between areas with lichen- and shrub-dominated vegetation. In contrast to the original hand-drawn CAVM, the new map is based on unsupervised classifications of seventeen geographic/floristic sub-sections of the Arctic, using AVHRR and MODIS data (reflectance and NDVI) and elevation data. The units resulting from the classification were modeled to the CAVM types using a wide variety of ancillary data. The map was reviewed by experts familiar with their particular region, including many of the original authors of the CAVM from Canada, Greenland (Denmark), Iceland, Norway (including Svalbard), Russia, and the U.S. The analysis presented here summarizes the area, geographical distribution, elevation, summer temperatures, and NDVI of the map units. The greater spatial resolution of the Raster CAVM allowed more detailed mapping of water-bodies and mountainous areas. It portrays coastal-inland gradients, and better reflects the heterogeneity of vegetation type distribution than the original CAVM. Accuracy assessment of random 1-km pixels interpreted from 6 Landsat scenes showed an average of 70 % accuracy, up from 39 % for the original CAVM. The distribution of shrub-dominated types changed the most, with more prostrate shrub tundra mapped in mountainous areas, and less low shrub tundra in lowland areas. This improved mapping is important for quantifying existing and potential changes to land cover, a key environmental indicator for modeling and monitoring ecosystems. Dataset Arctic glacier glacier glacier glacier glacier glacier* Greenland Iceland Svalbard Tundra DataCite Metadata Store (German National Library of Science and Technology) Arctic Blair ENVELOPE(160.817,160.817,-72.533,-72.533) Canada Greenland Nadezhda ENVELOPE(64.167,64.167,-72.733,-72.733) Norway Svalbard Torre ENVELOPE(-59.729,-59.729,-62.413,-62.413) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Arctic Tundra Vegetation Mapping Land Cover Analysis Satellite Mapping |
spellingShingle |
Arctic Tundra Vegetation Mapping Land Cover Analysis Satellite Mapping Raynolds, Martha Raster Circumpolar Arctic Vegetation Map |
topic_facet |
Arctic Tundra Vegetation Mapping Land Cover Analysis Satellite Mapping |
description |
Authors: Martha K. Raynolds, Donald A. Walker, Andrew Balser, Christian Bay, Mitch Campbell, Mikhail M. Cherosov, Fred J. A. Daniëls, Pernille Bronken Eidesen, Ksenia A. Ermokhina, Gerald V. Frost, Birgit Jedrzejek, M. Torre Jorgenson, Blair E. Kennedy, Sergei S. Kholod, Igor A. Lavrinenko, Olga V. Lavrinenko, Borgþór Magnússon, Nadezhda V. Matveyeva, Sigmar Metúsalemsson, Lennart Nilsen, Ian Olthof, Igor N. Pospelov, Elena B. Pospelova, Darren Pouliot, Vladimir Razzhivin, Gabriela Schaepman-Strub, Jozef Šibík, Mikhail Yu. Telyatnikov, Elena Troeva. Land cover maps are the basic data layer required for understanding and modeling ecological patterns and processes. The Circumpolar Arctic Vegetation Map (CAVM), produced in 2003, has been widely used as a base map for studies in the arctic tundra biome. However, the relatively coarse resolution and vector format of the map were not compatible with many other data sets. We present a new version of the CAVM, building on the strengths of the original map, while providing a finer spatial resolution, raster format, and improved mapping. The Raster CAVM uses the legend, extent and projection of the original CAVM. The legend has 16 vegetation types, glacier, saline water, freshwater, and non-arctic land. The Raster CAVM divides the original rock-water-vegetation complex map unit that mapped the Canadian Shield into two map units, distinguishing between areas with lichen- and shrub-dominated vegetation. In contrast to the original hand-drawn CAVM, the new map is based on unsupervised classifications of seventeen geographic/floristic sub-sections of the Arctic, using AVHRR and MODIS data (reflectance and NDVI) and elevation data. The units resulting from the classification were modeled to the CAVM types using a wide variety of ancillary data. The map was reviewed by experts familiar with their particular region, including many of the original authors of the CAVM from Canada, Greenland (Denmark), Iceland, Norway (including Svalbard), Russia, and the U.S. The analysis presented here summarizes the area, geographical distribution, elevation, summer temperatures, and NDVI of the map units. The greater spatial resolution of the Raster CAVM allowed more detailed mapping of water-bodies and mountainous areas. It portrays coastal-inland gradients, and better reflects the heterogeneity of vegetation type distribution than the original CAVM. Accuracy assessment of random 1-km pixels interpreted from 6 Landsat scenes showed an average of 70 % accuracy, up from 39 % for the original CAVM. The distribution of shrub-dominated types changed the most, with more prostrate shrub tundra mapped in mountainous areas, and less low shrub tundra in lowland areas. This improved mapping is important for quantifying existing and potential changes to land cover, a key environmental indicator for modeling and monitoring ecosystems. |
format |
Dataset |
author |
Raynolds, Martha |
author_facet |
Raynolds, Martha |
author_sort |
Raynolds, Martha |
title |
Raster Circumpolar Arctic Vegetation Map |
title_short |
Raster Circumpolar Arctic Vegetation Map |
title_full |
Raster Circumpolar Arctic Vegetation Map |
title_fullStr |
Raster Circumpolar Arctic Vegetation Map |
title_full_unstemmed |
Raster Circumpolar Arctic Vegetation Map |
title_sort |
raster circumpolar arctic vegetation map |
publisher |
Mendeley |
publishDate |
2019 |
url |
https://dx.doi.org/10.17632/c4xj5rv6kv.1 https://data.mendeley.com/datasets/c4xj5rv6kv/1 |
long_lat |
ENVELOPE(160.817,160.817,-72.533,-72.533) ENVELOPE(64.167,64.167,-72.733,-72.733) ENVELOPE(-59.729,-59.729,-62.413,-62.413) |
geographic |
Arctic Blair Canada Greenland Nadezhda Norway Svalbard Torre |
geographic_facet |
Arctic Blair Canada Greenland Nadezhda Norway Svalbard Torre |
genre |
Arctic glacier glacier glacier glacier glacier glacier* Greenland Iceland Svalbard Tundra |
genre_facet |
Arctic glacier glacier glacier glacier glacier glacier* Greenland Iceland Svalbard Tundra |
op_relation |
https://dx.doi.org/10.17632/c4xj5rv6kv |
op_rights |
Attribution-NonCommercial 3.0 Unported info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc/3.0 |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.17632/c4xj5rv6kv.1 https://doi.org/10.17632/c4xj5rv6kv |
_version_ |
1766323210577510400 |