Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U32A) Sagwon Hills MNT, 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/A2B56D57V 2024-10-03T18:45:33+00:00 Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U32A) Sagwon Hills MNT, Alaska. 1995-2020 Nikolay Shiklomanov Hill, gentle northwest-facing slope (4 degrees) with nonsorted circles; moist nonacidic tundra. Vegetation communities: (1) Vegetated nonsorted circles: Moist Eriophorum triste, E. vaginatum, Dryas integrifolia, Hylocomium splendens, Racomitrium lanuginosum, Thamnolia subuliformis graminoid, prostrate-shrub tundra. (2) Barren nonsorted circles: Dry Saxifraga oppositifolia, Juncus biglumis, Ochrolechia frigida forb, crustose-lichen barren (3) Areas between nonsorted circles: Moist Dryas integrifolia, Salix reticulata, Eriophorum triste, Tomentypnum nitens, prostrate-shrub, graminoid, moss tundra. Cover of top 5 species: Carex bigelowii (20%), Dryas integrifolia (14%), Eriophorum triste (14%), Hylocomium splendens (10%), Eriophorum vaginatum (9%) ENVELOPE(-148.0,-148.0,69.0,69.0) BEGINDATE: 1995-07-10T00:00:00Z ENDDATE: 2020-08-14T00:00:00Z 2021-01-01T00:00:00Z https://doi.org/10.18739/A2B56D57V 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/A2B56D57V 2024-10-03T18:17:15Z 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 Foundation (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 Carex bigelowii Global Terrestrial Network for Permafrost permafrost Saxifraga oppositifolia Tundra Alaska Arctic Data Center (via DataONE) ENVELOPE(-148.0,-148.0,69.0,69.0) |
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, (U32A) Sagwon Hills MNT, 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 Foundation (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, (U32A) Sagwon Hills MNT, Alaska. 1995-2020 |
title_short |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U32A) Sagwon Hills MNT, Alaska. 1995-2020 |
title_full |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U32A) Sagwon Hills MNT, Alaska. 1995-2020 |
title_fullStr |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U32A) Sagwon Hills MNT, Alaska. 1995-2020 |
title_full_unstemmed |
Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U32A) Sagwon Hills MNT, Alaska. 1995-2020 |
title_sort |
seasonal soil active layer measurements from a circumpolar active layer monitoring (calm) grid, (u32a) sagwon hills mnt, alaska. 1995-2020 |
publisher |
Arctic Data Center |
publishDate |
2021 |
url |
https://doi.org/10.18739/A2B56D57V |
op_coverage |
Hill, gentle northwest-facing slope (4 degrees) with nonsorted circles; moist nonacidic tundra. Vegetation communities: (1) Vegetated nonsorted circles: Moist Eriophorum triste, E. vaginatum, Dryas integrifolia, Hylocomium splendens, Racomitrium lanuginosum, Thamnolia subuliformis graminoid, prostrate-shrub tundra. (2) Barren nonsorted circles: Dry Saxifraga oppositifolia, Juncus biglumis, Ochrolechia frigida forb, crustose-lichen barren (3) Areas between nonsorted circles: Moist Dryas integrifolia, Salix reticulata, Eriophorum triste, Tomentypnum nitens, prostrate-shrub, graminoid, moss tundra. Cover of top 5 species: Carex bigelowii (20%), Dryas integrifolia (14%), Eriophorum triste (14%), Hylocomium splendens (10%), Eriophorum vaginatum (9%) ENVELOPE(-148.0,-148.0,69.0,69.0) BEGINDATE: 1995-07-10T00:00:00Z ENDDATE: 2020-08-14T00:00:00Z |
long_lat |
ENVELOPE(-148.0,-148.0,69.0,69.0) |
genre |
Active layer monitoring Carex bigelowii Global Terrestrial Network for Permafrost permafrost Saxifraga oppositifolia Tundra Alaska |
genre_facet |
Active layer monitoring Carex bigelowii Global Terrestrial Network for Permafrost permafrost Saxifraga oppositifolia Tundra Alaska |
op_doi |
https://doi.org/10.18739/A2B56D57V |
_version_ |
1811925517220184064 |