Organizations

UAA
Primary
NSF
Funding
UAF
USGS
EPSCoR-ACE

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

The expanding footprint of human development in the lower Kenai River watershed based on analysis of aerial photographs. Inset in top panel shows location within entire Kenai River watershed (dark outline). Most development is concentrated in the lowlands near the river mainstem and tributaries.

An interactive slider graphic showing greater detail 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.”

Supplemental Information:

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.

Complete

Data and Resources

  • Download

    Download :: Expanding Human Footprint in the Lower Kenai River Watershed, 1950-2013

    Figure 7_Expanding human footprint.jpg (1.98 MB)

  • 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 Contacts
Name: Frank Witmer
Title: Assistant Professor of Computer Science & Engineering
Email: fwitmer@uaa.alaska.edu
Other Contacts
Name: Mark Wipfli
Title: Professor of Freshwater Ecology, UAF
Email: mwipfli@alaska.edu
Name: Jamie Trammell
Title: Assistant Professor of Environmental Studies
Email: ejtrammell@uaa.alaska.edu
Name: Erik Schoen
Title: Post-Doctorate Researcher
Email: eschoen@alaska.edu
Primary Organizations
Type
University of Alaska Anchorage
Academic

Funding Organization
Type
National Science Foundation
Federal

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

Regions
Alaska, Kenai Peninsula, Southcentral

Collections
Alaska EPSCoR Southcentral Test Case

Source Portal
Alaska EPSCoR Data Portal

Direct Record Link
http://southcentral.epscor.alaska.edu/catalog/entries/8788-human-development-in-the-lower-kenai-river-wate