Volcano Views and Brews
This popular lecture series about volcanic topics began in 2007 and continues every month. Fascinating topics, lively speakers as well as excellent food and libations make for an enjoyable and horizon-widening evening.
The New Spirit Lake: Lessons from Years of Getting Battered by Logs for Science
Tuesday 10/21 in Vancouver, WA at Loowit Brewing — Wednesday 10/22 at the Hop n’ Grape in Longview, WA. Doors open at 5:30 p.m. and Presentation starts at 6:00 p.m.
Speaker: James E. Gawel, Ph.D., Associate Professor of Environmental Chemistry and Engineering at the University of Washington Tacoma
Spirit Lake was changed biologically, chemically and physically by the 1980 eruption of Mount St. Helens and the concurrent landslide that essentially buried the old lake and created a new one in its place. The massive changes to the lake ecosystem immediately after the eruption have been well documented already. However, recent changes to the surrounding watershed spurred by ever-increasing regrowth of terrestrial vegetation continue to alter the biogeochemistry of Spirit Lake. In order to make sense of the changing ecology of the lake and to inform future management decisions regarding public access and appropriate use of the lake, it is imperative that we establish a better understanding of the processes that govern lake productivity currently so that future scenarios can be better modeled. Dr. Jim Gawel will outline the recent work that he and his undergraduate students have done on Spirit Lake developing a hydrologic and nutrient mass balance model for the lake and compare recent measurements of lake productivity and chemistry to pre- and post-eruption data in the literature. This is the first attempt at quantifying nutrient fluxes and reservoirs in the lake, and this baseline study will allow us to track changes to the ecosystem in the future.
Eyewitness Accounts of the 1980 Eruption of Mount St. Helens
Tuesday 11/20 in Vancouver, WA at Loowit Brewing and Thursday 11/22 in Longview, WA at the Hop n’ Grape. Doors open at 5:30 p.m. and presentation starts at 6:00 p.m.
Speaker: Richard B. Waitt, Research Geologist at Cascades Volcano Observatory - USGS
No matter how good you are as a geologist or how much time you spend in the field, you cannot discover some things about a volcanic eruption except through people who were in it or nearly so. Here we shall hear about Mount St. Helens’ 18 May 1980 eruption as only survivors and other close witnesses can tell.