Research About crater

Posted On: Filed Under: Biological Research

Lakes and thermal environments in the blast zone of Mount St. Helens

Approximately 20 lakes exist in the blast zone of Mount St. Helens. The degree to which they were disturbed on May 18, 1980 ranges from slight to a complete physical, chemical, and biological restructuring. Initially, our research focused on the physical, chemical, and microbial conditions within the lakes. Heavily devastated lakes were markedly changed chemically and all plants and animals eliminated. Recovery took the form of dramatic physical and chemical changes within the lakes which were linked to microbial activity. Rapid recovery occurred the first two years. Once the physical and chemical conditions were ameliorated, further biological succession was possible. Presently, we continue to track these changes.


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Posted On: Filed Under: Biological Research

Mount St. Helens crater weather station

A weather station was established in the crater of Mount St. Helens to continuously monitor precipitation (both rain and snow), temperature, and water equivalence of snowpack. The information is gathered to provide baseline data for hydrologic hazards analyses.


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Posted On: Filed Under: Biological Research

The effects of the eruptions of Mount St. Helens on glaciers, glacier caves, caves and mudflows, etc.

The objectives of this project are to study effects of eruptions on glaciers and glacier pseudokarst and to map glacier caves and glacier margin and other caves on Mount St. Helens. In meeting these objectives we will document and photograph (1) these features; (2) effects of ashfall and mudflows on newly exposed glacier bed and downslope detritus and erosion produced by melting glaciers; (3) effects on crater, dome and caves in crater.


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