Applying High-Resolution Imagery to Evaluate Restoration-Induced Changes in Stream Condition, Missouri River Headwaters Basin, Montana

Changes to Snowpack Energy State from Spring Storm Events, Columbia River Headwaters, Montana

The generation and release of meltwater during the spring snowmelt season can be delayed because of spring storm episodes with snow accumulation and/or sustained subfreezing temperatures. The delayed release of snowmelt often extends beyond the particular storm event because of changes to the internal state of energy in the snowpack that prevents transmission of meltwater. Following a storm, tw...

Significance of trends toward earlier snowmelt runoff, Columbia and Missouri Basin headwaters, western United States

Detecting Changes to Topographic Features Using High Resolution Imagery

Detecting changes to topographic features is one of the major tasks of a national mapping agency. At Ordnance Survey, Britain’s national mapping agency, the process of change detection has traditionally been a largely manual, labour-intensive task. One of the goals of the Research department is to develop automatic and semi-automatic change detection processes which could be developed into prod...

Mapping of stream microhabitats with high spatial resolution hyperspectral imagery

Maximum likelihood supervised classifications with 1-m 128 band hyperspectral data accurately map in-stream habitats in the Lamar River, Wyoming with producer’s accuracies of 91% for pools, 87% for glides, 76% for riffles, and 85% for eddy drop zones. Coarser resolution 5-m hyperspectral data and 1-m simulated multiband imagery yield lower accuracies that are unacceptable for inventory and anal...

Direct and Indirect Modification of Stream Flow in the Flathead River Basin in Northwestern Montana: Hydrologic Parameter Development and Implementation