Location

Portland State University

Start Date

4-5-2016 12:00 PM

End Date

4-5-2016 2:00 PM

Subjects

Mount Saint Helens (Wash.), Vegetation dynamics -- Washington (State) -- Mount Saint Helens, Plant communities -- Washington (State) -- Mount Saint Helens

Description

The 1980 eruption of Mount St. Helens (MSH) proved a dramatic event with many important socio-economic consequences. In addition, this eruption resulted in an array of ecological consequences with subsequent studies and profound theoretical ramifications. The eruption created a complex gradient in disturbance severity on the northern aspect of MSH3, promoting successional processes from varying starting points and change rates. This study uses a landscape-scale approach to quantify spatio-temporal trends in vegetative responses to the eruption from 2000-2015, relying on Landsat TM and ETM+ imagery focusing on the primary and (i.e. no biological legacies) secondary (i.e. with biological legacies) succession zones that were studied 15 years ago.

Persistent Identifier

http://archives.pdx.edu/ds/psu/17161

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May 4th, 12:00 PM May 4th, 2:00 PM

Then and Now: Vegetative Change Detection on Mount St. Helens 2000-2015

Portland State University

The 1980 eruption of Mount St. Helens (MSH) proved a dramatic event with many important socio-economic consequences. In addition, this eruption resulted in an array of ecological consequences with subsequent studies and profound theoretical ramifications. The eruption created a complex gradient in disturbance severity on the northern aspect of MSH3, promoting successional processes from varying starting points and change rates. This study uses a landscape-scale approach to quantify spatio-temporal trends in vegetative responses to the eruption from 2000-2015, relying on Landsat TM and ETM+ imagery focusing on the primary and (i.e. no biological legacies) secondary (i.e. with biological legacies) succession zones that were studied 15 years ago.