University of Alaska Anchorage

University of Alaska Anchorage

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Human Development in the Lower Kenai River Watershed, 1950-2013 - Interactive Slider Graphic

An interactive slider graphic showing the expanding footprint of human development in the lower Kenai River watershed based on analysis of aerial photographs is available at https://ak-nsf-epscor.github.io/kenai-change/kenaiDevelChange.html .

For more information, please see the following journal article: Schoen et al. 2017. Fisheries. “Future of Pacific Salmon in the Face of Environmental Change: Lessons from One of the World’s Remaining Productive Salmon Regions.”

We quantified the concentration of development in the Kenai River watershed using high-resolution aerial photography from the 1950s (US Geological Survey), 1980s (Alaska High Altitude Photography), and 2013 (Kenai Peninsula Borough), as well as the National Land Cover Database (NLCD 2013). We digitized human footprint polygons, categorized them as either low (house lots > 1 acre)-, medium (treed neighborhoods with moderate-sized lots)-, or high-intensity (commercially developed urban areas, multiple unit residences with few trees) development or cleared land using a modified Anderson level II classification (Anderson et al. 1976), and attributed the linear road features present in each time step.

Data and Resources

  • View website
    Website :: Interactive Slider - Human Development in the Lower Kenai River Watershed, 1950-2013

    https://ak-nsf-epscor.github.io/kenai-change/kenaiDevelChange.html

Status: Complete
Type: Data
Data Types: Map
Primary Contact
Witmer, Frank
Assistant Professor of Computer Science & Engineering
Email: fwitmer@uaa.alaska.edu
Work: (907) 786 - 1637
Primary Agency
University of Alaska Anchorage
Type
Academic

Funding Agency
National Science Foundation
Type
Federal

Other Agencies
EPSCoR - Alaska Adapting to Changing Environments, US Geological Survey, University of Alaska Fairbanks

ISO Topics
environment, imageryBaseMapsEarthCover, inlandWaters, planningCadastre, structure

Geo-keywords
Alaska, Kenai Peninsula, Southcentral

Collection
Alaska EPSCoR Southcentral Test Case

Direct Record Link
http://southcentral.epscor.alaska.edu/catalogs/11864-human-development-in-the-lower-kenai-river-wate
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