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Lake Ice Regime Classification

Dates

Last Update
2017-11-17
Time span for which resource(dataset) is relevant.
1992-01-01
Time span for which resource(dataset) is relevant.
2011-12-31

Citation

LCC Network Data Steward(Point of Contact), Arctic Landscape Conservation Cooperative(administrator), Melanie Engram(Author), 2017-11-17(lastUpdate), Lake Ice Regime Classification, http://arcticlcc.org/products/0aa65e03-3643-40d3-8e0c-2559738d0a36, https://www.sciencebase.gov/catalog/item/5aaababfe4b09e9cadb73874

Summary

These data are the result of a geospatial analysis involving multi-year SAR-based lake ice regime classification using sigma-naught backscatter intensity from calibrated space-borne C-band SAR for thousands of lakes in 7 lake districts in Alaska, USA, detailed in Engram et al., (in review). Historically, radar backscatter from space-borne and airborne platforms shows a lower backscatter return from bedfast lake ice and a higher backscatter return from floating ice (where liquid phase water exists under the ice) (Jeffries, Morris, Weeks, & Wakabayashi, 1994; Weeks, 1977). We used a threshold method where the threshold to differentiate floating and bedfast ice regimes was determined for each year from the frequency distribution of SAR [...]

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LakeIceRegimeClassificationGeoPackage.zip 19.55 MB
md_metadata.json 79.41 KB
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Material Request Instructions

Arctic Landscape Conservation Cooperative(Data Owner)

Purpose

Geographic locations of this study were chosen to represent a variety of lake types that occur in continuous permafrost in Alaska and include five lake regions in the Arctic Coastal Plain of northern Alaska (Barrow, Teshekpuk, Inigok, Fish Creek, and Kuparuk), one region in the North one on the northern Seward Peninsula. Field data from multiple lakes in each region, including maximum ice thickness, water depth, water salinity, and frozen or unfrozen sediments were made between 2007-2016 for Barrow, Teskekpuk, Fish Creek, Inigok, Umiat, and northern Seward Peninsula.

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Spatial Services

ScienceBase WMS

Communities

  • Arctic Landscape Conservation Cooperative
  • LC MAP - Landscape Conservation Management and Analysis Portal

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generated using ADIwg mdTranslator 2.14.2

Additional Information

Identifiers

Type Scheme Key
urn:uuid urn:uuid 0aa65e03-3643-40d3-8e0c-2559738d0a36

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