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Global Change Master Directory (GCMD)
ABoVE: Permafrost Measurements and Distribution Across the Y-K Delta, Alaska, 2016
Entry ID: Permafrost_Thaw_Depth_YK_1598_1


Summary
Abstract: This dataset provides field observations of thaw depth and dominant vegetation types, a LiDAR-derived elevation map, and permafrost distribution and probability maps for an area on the coastal plain of the Yukon-Kuskokwim Delta (YKD), in western Alaska, USA. Field data were collected during July 8-17, 2016 to parameterize and to validate the derived permafrost maps. The YKD is in the sporadic to isolated permafrost zone where permafrost forms extensive elevated plateaus on abandoned floodplains. The region is extremely flat and vulnerable to eustatic sea-level rise and inland storm surges. These high-resolution permafrost maps support landscape change analyses and assessments of the impacts of climate change on permafrost in this region of high biological productivity, critical wildlife habitats, and subsistence-based human economy.

Related URL
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Description: This link allows direct data access via Earthdata login


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Description: ORNL DAAC Data Set Documentation


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Description: Data set Landing Page DOI URL


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Description: A pdf of the guide


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Description: Photos of the transects


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Description: The shapefile data in.kmz format


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Description: ABoVE: Permafrost Measurements and Distribution Maps across Y-K Delta, Alaska, 2016: Tutakoke_permafrost_validation.kmz


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Description: High-resolution map of permafrost distribution created using the 2.5 m a.m.s.l (mean + 1 SD) threshold for the entire 2009 LiDAR swath. The insets show detail for areas of high elevation (left) and relative low elevation (right) (Whitley et al., 2018).

Geographic Coverage
 N: 61.29 S: 61.17  E: -165.03  W: -165.69

Data Set Citation
Version: 1


Temporal Coverage
Start Date: 2009-06-27
Stop Date: 2016-07-17


Science Keywords
BIOSPHERE >VEGETATION >VEGETATION COVER    [Definition]
CRYOSPHERE >FROZEN GROUND >PERMAFROST    [Definition]
LAND SURFACE >SOILS >PERMAFROST    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION >DIGITAL ELEVATION/TERRAIN MODEL (DEM)    [Definition]


ISO Topic Category
BIOTA
GEOSCIENTIFIC INFORMATION
ELEVATION


Platform
IKONOS    [Information]
FIELD SURVEYS    [Information]
Aircraft    [Information]


Instrument
Schmidt-Cassegrain Telescope >Schmidt-Cassegrain Telescope
SOIL DEPTH PROBE
LIDAR >Light Detection and Ranging    [Information]


Project
ABoVE >Arctic-Boreal Vulnerability Experiment    [Information]


Data Set Progress
COMPLETE


Data Center
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC)    [Information]
Data Center URL: https://daac.ornl.gov/

Data Center Personnel
Name: NOT PROVIDED


Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2019-04-15



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