Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U11B) Imnavait Creek WET, Alaska. 1995-2020
The Circumpolar Active Layer Monitoring (CALM) program represents the only coordinated program providing collection, standardization, open access, and dissemination of active-layer data world-wide. Widespread, systematic changes in the thickness of the active layer could have profound effects on the...
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dataone:doi:10.18739/A2T43J40J 2024-06-03T18:46:21+00:00 Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U11B) Imnavait Creek WET, Alaska. 1995-2020 Nikolay Shiklomanov Gentle (1 degree) north facing basin deposit with strangmoor, wetland hummocks, palsas; wet acidic tundra. Vegetation communities: (1) Raised microsites in basin including hummocks and palsas: Wet Carex rotundata, C. rariflora, Betula nana, Salix fuscescens, Sphagnum lenense graminoid, dwarf-shrub tundra. (2) Footslope of west-facing hill: Moist Betula nana, Eriophorum vaginatum, Sphagnum spp. dwarf-shrub, tussock-graminoid tundra. (3) Lower microsites in basin including interhummock areas with standing water: Wet Eriophorum scheuchzeri, Carex rotundata, Sphagnum orientale, Drepanocladus revolvens graminoid tundra. (4) Marginal area of the basin with few shrubs: Wet Carex rotundata, Salix fuscescens, Sphagnum lenense graminoid, moss tundra. (5) Beaded pond of Imnavait Creek: Aquatic Sparganium hyperboreum, Hippuris vulgaris forb marsh. Cover of top 5 species: Sphagnum lenense (13%), Carex rotundata (8%), Sphagnum warnstorfii (7%), Betula nana (6%), Sphagnum orientale (6%). ENVELOPE(-149.0,-149.0,68.0,68.0) BEGINDATE: 1995-07-06T00:00:00Z ENDDATE: 2020-08-16T00:00:00Z 2021-01-01T00:00:00Z https://doi.org/10.18739/A2T43J40J unknown Arctic Data Center Permafrost Earth Science Cryosphere Active Layer Grid 500 Meters to 1 Kilometer Probes Field Survey Weekly to Monthly Dataset 2021 dataone:urn:node:ARCTIC https://doi.org/10.18739/A2T43J40J 2024-06-03T18:17:19Z The Circumpolar Active Layer Monitoring (CALM) program represents the only coordinated program providing collection, standardization, open access, and dissemination of active-layer data world-wide. Widespread, systematic changes in the thickness of the active layer could have profound effects on the flux of greenhouse gases, on the human infrastructure in cold regions, and on landscape and hydrologic processes. It is therefore critical that observational and analytical procedures continue over decadal periods to assess trends and detect cumulative, long-term changes. This dataset contains active-layer observations conducted by the CALM program since the 1990s, supported by a series of National Science Federation (NSF) awards. CALM program is an integral part of the Global Terrestrial Network for Permafrost. CALM 2020 data are significantly reduced due to pandemic-related travel restrictions. Available 2020 data are limited in terms of extent, and observations were not as controlled as previous years in terms of measurement timing or method, and therefore should be treated with caution. Dataset Active layer monitoring Betula nana Eriophorum scheuchzeri Global Terrestrial Network for Permafrost palsas permafrost Strangmoor Tundra Alaska Arctic Data Center (via DataONE) ENVELOPE(-149.0,-149.0,68.0,68.0) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
Permafrost Earth Science Cryosphere Active Layer Grid 500 Meters to 1 Kilometer Probes Field Survey Weekly to Monthly |
spellingShingle |
Permafrost Earth Science Cryosphere Active Layer Grid 500 Meters to 1 Kilometer Probes Field Survey Weekly to Monthly Nikolay Shiklomanov Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U11B) Imnavait Creek WET, Alaska. 1995-2020 |
topic_facet |
Permafrost Earth Science Cryosphere Active Layer Grid 500 Meters to 1 Kilometer Probes Field Survey Weekly to Monthly |
description |
The Circumpolar Active Layer Monitoring (CALM) program represents the only coordinated program providing collection, standardization, open access, and dissemination of active-layer data world-wide. Widespread, systematic changes in the thickness of the active layer could have profound effects on the flux of greenhouse gases, on the human infrastructure in cold regions, and on landscape and hydrologic processes. It is therefore critical that observational and analytical procedures continue over decadal periods to assess trends and detect cumulative, long-term changes. This dataset contains active-layer observations conducted by the CALM program since the 1990s, supported by a series of National Science Federation (NSF) awards. CALM program is an integral part of the Global Terrestrial Network for Permafrost. CALM 2020 data are significantly reduced due to pandemic-related travel restrictions. Available 2020 data are limited in terms of extent, and observations were not as controlled as previous years in terms of measurement timing or method, and therefore should be treated with caution. |
format |
Dataset |
author |
Nikolay Shiklomanov |
author_facet |
Nikolay Shiklomanov |
author_sort |
Nikolay Shiklomanov |
title |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U11B) Imnavait Creek WET, Alaska. 1995-2020 |
title_short |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U11B) Imnavait Creek WET, Alaska. 1995-2020 |
title_full |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U11B) Imnavait Creek WET, Alaska. 1995-2020 |
title_fullStr |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U11B) Imnavait Creek WET, Alaska. 1995-2020 |
title_full_unstemmed |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U11B) Imnavait Creek WET, Alaska. 1995-2020 |
title_sort |
seasonal soil active layer measurements from a circumpolar active layer monitoring (calm) grid, (u11b) imnavait creek wet, alaska. 1995-2020 |
publisher |
Arctic Data Center |
publishDate |
2021 |
url |
https://doi.org/10.18739/A2T43J40J |
op_coverage |
Gentle (1 degree) north facing basin deposit with strangmoor, wetland hummocks, palsas; wet acidic tundra. Vegetation communities: (1) Raised microsites in basin including hummocks and palsas: Wet Carex rotundata, C. rariflora, Betula nana, Salix fuscescens, Sphagnum lenense graminoid, dwarf-shrub tundra. (2) Footslope of west-facing hill: Moist Betula nana, Eriophorum vaginatum, Sphagnum spp. dwarf-shrub, tussock-graminoid tundra. (3) Lower microsites in basin including interhummock areas with standing water: Wet Eriophorum scheuchzeri, Carex rotundata, Sphagnum orientale, Drepanocladus revolvens graminoid tundra. (4) Marginal area of the basin with few shrubs: Wet Carex rotundata, Salix fuscescens, Sphagnum lenense graminoid, moss tundra. (5) Beaded pond of Imnavait Creek: Aquatic Sparganium hyperboreum, Hippuris vulgaris forb marsh. Cover of top 5 species: Sphagnum lenense (13%), Carex rotundata (8%), Sphagnum warnstorfii (7%), Betula nana (6%), Sphagnum orientale (6%). ENVELOPE(-149.0,-149.0,68.0,68.0) BEGINDATE: 1995-07-06T00:00:00Z ENDDATE: 2020-08-16T00:00:00Z |
long_lat |
ENVELOPE(-149.0,-149.0,68.0,68.0) |
genre |
Active layer monitoring Betula nana Eriophorum scheuchzeri Global Terrestrial Network for Permafrost palsas permafrost Strangmoor Tundra Alaska |
genre_facet |
Active layer monitoring Betula nana Eriophorum scheuchzeri Global Terrestrial Network for Permafrost palsas permafrost Strangmoor Tundra Alaska |
op_doi |
https://doi.org/10.18739/A2T43J40J |
_version_ |
1800874900320157696 |