Scientists & Staff

Patrick L. Zimmerman

Notes: This person is no longer an employee of the Northern Research Station.

Publications & Products

National Research Highlights

Comparison of vegetation change tracker output products without (left) and with (right) snow-covered winter satellite imagery. Kirk Stueve, Forest Service

Forest Land Estimates Improved by Novel Automated Mapping Technique Using Winter Satellite Imagery

Year: 2011

Most automated satellite-based approaches for mapping forest lands rely on summer satellite imagery and are usually inconsistent with FIA plot-based estimates. Incorporating winter imagery in the mapping approach helps reduce the abundant false positives for forest and forest disturbance that frequently occur during the growing season, especially where forest is intermixed with wetland and agricultural landscapes. Reliable estimates of forest lands between FIA field plots allow customers the opportunity to explore forest dynamics more confidently beyond the grid of FIA plots.

Last modified: Thursday, February 2, 2023