Central Seward Peninsula Deciduous Tall Shrub Map (1950-2018) and Suitable Habitat Model
Tall deciduous shrubs are critically important to carbon and nutrient cycling in high-latitude ecosystems. As Arctic regions warm, shrubs expand heterogeneously across their ranges, including within unburned terrain experiencing isometric gradients of warming. To constrain the effects of widespread...
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Arctic Data Center
2023
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dataone:doi:10.18739/A28911S58 2024-06-03T18:46:37+00:00 Central Seward Peninsula Deciduous Tall Shrub Map (1950-2018) and Suitable Habitat Model Aiden Schore Mark Lara The central Seward Peninsula region of Alaska ENVELOPE(-167.123,-162.674,65.833,64.759) BEGINDATE: 1950-01-01T00:00:00Z ENDDATE: 2018-01-01T00:00:00Z 2023-01-01T00:00:00Z https://doi.org/10.18739/A28911S58 unknown Arctic Data Center Alaska Arctic shrub alder shrub expansion Seward willow birch tundra permafrost Dataset 2023 dataone:urn:node:ARCTIC https://doi.org/10.18739/A28911S58 2024-06-03T18:20:13Z Tall deciduous shrubs are critically important to carbon and nutrient cycling in high-latitude ecosystems. As Arctic regions warm, shrubs expand heterogeneously across their ranges, including within unburned terrain experiencing isometric gradients of warming. To constrain the effects of widespread shrub expansion in terrestrial and Earth System Models, improved knowledge of local to regional-scale patterns, rates, and controls on decadal shrub expansion is required. Here we map tall deciduous shrub canopies in the central Seward Peninsula of Alaska in 1950 using ~1 meter (m)-resolution aerial photographs from US Navy missions in three subsites (1950ShrubClass.tif and 1950AlderClass.tif) and in 2018 using 3m-resolution PlanetScope satellite imagery for the entire study region (SummerShrubExtent.tif and AlderExtent2017.tif). The timing of alder shrub senescence allowed us to separate the classification into alder and non-alder categories. We computed two change maps: one exclusively for alder and one including all deciduous tall shrubs. The change maps were modeled against a suite of environmental factors and the shrub change model was extended across the study region (SewardShrub.tif). The model was rerun for future scenarios with 10 (SewardMinus10PF.tif) and 30 (SewardMinus30PF.tif) percent reductions in permafrost probability to determine the likely effects of permafrost degradation on shrub extent. Dataset Arctic permafrost Seward Peninsula Tundra Alaska Arctic Data Center (via DataONE) Arctic ENVELOPE(-167.123,-162.674,65.833,64.759) |
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Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
Alaska Arctic shrub alder shrub expansion Seward willow birch tundra permafrost |
spellingShingle |
Alaska Arctic shrub alder shrub expansion Seward willow birch tundra permafrost Aiden Schore Mark Lara Central Seward Peninsula Deciduous Tall Shrub Map (1950-2018) and Suitable Habitat Model |
topic_facet |
Alaska Arctic shrub alder shrub expansion Seward willow birch tundra permafrost |
description |
Tall deciduous shrubs are critically important to carbon and nutrient cycling in high-latitude ecosystems. As Arctic regions warm, shrubs expand heterogeneously across their ranges, including within unburned terrain experiencing isometric gradients of warming. To constrain the effects of widespread shrub expansion in terrestrial and Earth System Models, improved knowledge of local to regional-scale patterns, rates, and controls on decadal shrub expansion is required. Here we map tall deciduous shrub canopies in the central Seward Peninsula of Alaska in 1950 using ~1 meter (m)-resolution aerial photographs from US Navy missions in three subsites (1950ShrubClass.tif and 1950AlderClass.tif) and in 2018 using 3m-resolution PlanetScope satellite imagery for the entire study region (SummerShrubExtent.tif and AlderExtent2017.tif). The timing of alder shrub senescence allowed us to separate the classification into alder and non-alder categories. We computed two change maps: one exclusively for alder and one including all deciduous tall shrubs. The change maps were modeled against a suite of environmental factors and the shrub change model was extended across the study region (SewardShrub.tif). The model was rerun for future scenarios with 10 (SewardMinus10PF.tif) and 30 (SewardMinus30PF.tif) percent reductions in permafrost probability to determine the likely effects of permafrost degradation on shrub extent. |
format |
Dataset |
author |
Aiden Schore Mark Lara |
author_facet |
Aiden Schore Mark Lara |
author_sort |
Aiden Schore |
title |
Central Seward Peninsula Deciduous Tall Shrub Map (1950-2018) and Suitable Habitat Model |
title_short |
Central Seward Peninsula Deciduous Tall Shrub Map (1950-2018) and Suitable Habitat Model |
title_full |
Central Seward Peninsula Deciduous Tall Shrub Map (1950-2018) and Suitable Habitat Model |
title_fullStr |
Central Seward Peninsula Deciduous Tall Shrub Map (1950-2018) and Suitable Habitat Model |
title_full_unstemmed |
Central Seward Peninsula Deciduous Tall Shrub Map (1950-2018) and Suitable Habitat Model |
title_sort |
central seward peninsula deciduous tall shrub map (1950-2018) and suitable habitat model |
publisher |
Arctic Data Center |
publishDate |
2023 |
url |
https://doi.org/10.18739/A28911S58 |
op_coverage |
The central Seward Peninsula region of Alaska ENVELOPE(-167.123,-162.674,65.833,64.759) BEGINDATE: 1950-01-01T00:00:00Z ENDDATE: 2018-01-01T00:00:00Z |
long_lat |
ENVELOPE(-167.123,-162.674,65.833,64.759) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Seward Peninsula Tundra Alaska |
genre_facet |
Arctic permafrost Seward Peninsula Tundra Alaska |
op_doi |
https://doi.org/10.18739/A28911S58 |
_version_ |
1800868849903468544 |