168 coordinated sites near Deadhorse, Alaska form the only standardized network for observing decadal changes in seasonal thawing and freezing of high-latitude soils. The data, collected under the CALM network, represents active-layer thickness on a 1-hectare grid. It was last updated by SCIOPS via NASA EarthData on November 23, -2010.
Use Cases
- Modeling permafrost thaw dynamics based on standardized active-layer thickness measurements.
- Detecting decadal changes in seasonal soil freezing and thawing based on the coordinated observation network.
- Analyzing spatial patterns of active-layer thickness in the Arctic based on the 1-hectare grid structure.
- Validating remote sensing or climate models with in-situ soil temperature and thaw depth data.
Strengths
- Data from 168 standardized sites provides a coordinated observational network.
- Designed specifically for detecting decadal-scale changes in seasonal thaw dynamics.
- Uses standard measurement protocols, suggesting consistency across sites.
Limitations
- Last updated 2010-11-23 23:59:59.999000; freshness should be verified.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file size are unknown, which may limit suitability assessment.
Provenance
- Source
- SCIOPS via NASA EarthData (CALM network).
- Collection Method
- Standardized in-situ observations collected under the Circumpolar Active Layer Monitoring (CALM) network.
- Time Range
- null
- Freshness
- Last updated 2010-11-23 23:59:59.999000.
- Geography
- Near Deadhorse, Alaska (Arctic).