Seasonal soil active layer measurements from a Circumpolar Active Layer Monitoring (CALM) grid, (U12A) Toolik 1 kilometer grid, Alaska, 1999-2020

This site is registered with the Circumpolar Active Layer Monitoring (CALM) program. It is one among a network of sites that represent a coordinated effort to standardize the collection and access to thaw measurements in representative undisturbed permafrost landscapes. This dataset contains long-te...

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Bibliographic Details
Main Author: Nikolay Shiklomanov
Format: Dataset
Language:unknown
Published: Arctic Data Center 2023
Subjects:
Online Access:https://doi.org/10.18739/A2B56D62W
Description
Summary:This site is registered with the Circumpolar Active Layer Monitoring (CALM) program. It is one among a network of sites that represent a coordinated effort to standardize the collection and access to thaw measurements in representative undisturbed permafrost landscapes. This dataset contains long-term spatial thaw depth observations using mechanical probing on dates indicated by file column headers. To ensure relative consistency within the record, end-of-season measurement dates are within the same Julian calendar week during the height of the thaw season (mid-August to mid-September). It is important to note that the date of maximum annual thaw, interpreted as the active layer thickness, can vary from year to year and between sites.