Geospatial Analysis

A variety of geospatial and remote sensing tools document and monitor the rapid environmental changes currently occurring in the Arctic. Many shorelines of the circumpolar north lack the baseline topographic data and understanding of long-term historical changes. Structure-from-motion (SfM) software and aerial imagery allow the development of low-cost, high-accuracy photographs and elevation datasets. GIS-based shoreline change analysis uses the USGS Digital Shoreline Analysis System (DSAS) to help calculate historical shoreline trends and identify areas of erosion and accretion.

Flood hazard map produced for Goodnews Bay, Alaska.
Shoreline change analysis for Goodnews Bay, Alaska, spanning from 1951-2011.