U3: Active-Layer Thickness Measurements from 168 Sites Near Atqasuk, Alaska

168 active-layer thickness measurement sites near Atqasuk, Alaska, collected under the CALM network. The data represent a coordinated and standardized program using standard protocols designed to observe decadal changes in seasonal thawing and freezing in high-latitude soils. The dataset was last updated by SCIOPS on 2010-11-18.

Use Cases

• Modeling permafrost thaw dynamics based on standardized active-layer thickness measurements.
• Detecting decadal changes in seasonal soil freezing and thawing based on coordinated observation protocols.
• Analyzing spatial variability in active-layer thickness across a network of 168 sites.
• Validating remote sensing or climate model outputs for Arctic soil conditions.

Strengths

• Data from 168 coordinated measurement sites provides spatial coverage.
• Standardized measurement protocols ensure consistency for decadal change detection.

Limitations

• Last updated 2010-11-18; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

SCIOPS via nasa_earthdata

Collection Method

Standardized field measurements under the CALM (Circumpolar Active Layer Monitoring) network.

Time Range

Decadal observations (specific range unknown).

Freshness

Last updated 2010-11-18 23:59:59.999000

Geography

Near Atqasuk village, Alaska, Arctic region.