Project: 9014bb7b-6fad-4d7d-8f0e-f4c251a42cd2

Metadata Format
Project Title
Broad-scale lake and permafrost dynamics in the Western Alaska LCC region
Description
This project focuses on permafrost change and its effect on lake habitat in Western Alaska. Resource managers and local communities need spatially explicit information to determine past lake habitat changes, identify spatial patterns correlated to climate, and project future habitat changes.
Point of Contact(s)
LCC Network Data Steward
LCC Network Data Manager
lccdatasteward@fws.gov
Western Alaska Landscape Conservation Cooperative
1011 E. Tudor Road MS 281
Anchorage, Alaska 99503
Western Alaska Landscape Conservation Cooperative
1011 E. Tudor Road MS 281
Anchorage, Alaska 99503
Karen A Murphy
LCC Coordinator
1011 E. Tudor Road MS 281
Anchorage, Alaska 99503
V: +1 907 7893501
karen_a_murphy@fws.gov
Guido Grosse, PhD
Assistant Professor
V: +1 907 4747548
guido.grosse@awi.de
Vladimir Romanovsky
Professor
V: +1 907 4747459
veromanovsky@alaska.edu

Project Abstract

Thermokarst lakes (lakes formed in a depression by meltwater from thawing permafrost) are common features and important ecosystems in Alaska. There is increasing concern about how thermokarst lakes respond to projected climate change and what the potential impacts are on regional carbon cycle dynamics, hydrological regime, and habitat character distribution. This demands better understanding of the location of thermokarst lakes and how their characteristics vary in landscape that will allow to better estimate the risks associated with lake area dynamics. This study attempts to map state-wide thermokarst lake distribution of Alaska, with a minimum size of 0.1 ha, using object oriented classification of high resolution satellite images and additional thematic geospatial data. Mapping lake distribution at different time periods allowed assessment of lake habitat changes, identification of spatial patterns that could be correlated to climate, and to project future habitat changes to assist with developing habitat conservation plans and assessing the stability of freshwater resources for communities.

Supplemental Info: None Provided.

Project Links

Project Keywords

  • ISO 19115 Topic Category (isoTopicCategory):
    • environment
  • End User Types - Landscape Conservation Cooperatives (LCC End User Type):
    • State agencies,
    • Federal resource managers,
    • Academics & scientific researchers
  • Project Category - Landscape Conservation Cooperatives (LCC Project Category):
    • Decision Support,
    • Vulnerability Assessment,
    • Data Acquisition and Development