ForWarn II

Satellite-Based Change Recognition and Tracking


Insect defoliation in Fremont National Forest, OR

Wed, 09/14/2016 - 09:14 -- wchristie

ForWarn potentially indicates that an area in the Fremont National Forest, Oregon experienced a decline in green vegetation due to the Mountain Pine Beetle from 2004 through 2010 and still may not have recovered in terms of vegetation canopy greenness. The anomaly may also be associated with climate change initiating a shift in vegetation type in the area.

Possible Silviculture Treatment in Lassen National Forest, CA

Tue, 07/07/2015 - 07:35 -- wchristie

ForWarn identified an anomaly in the Lassen National Forest, California. The patches of disturbance have sharp boundaries. Drought sensitivity of the cleared area is not likely a factor because adjacent non-forest area is not showing comparable decline in vegetation greenness. Because of these factors, its is probable that the disturbance is human sourced land treatment.

Silviculture Treatment and Possible Drought in Tahoe National Forest, CA

Tue, 07/07/2015 - 07:32 -- wchristie

ForWarn determined an anomaly north of Lake Tahoe in Tahoe National Forest, California. Hard boundaries of disturbance suggests silviculture treatment in the mixed conifer forest. However, the association of grasses within the forest could show strong drought associated departure of vegetation greenness.

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