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Book Spirit Lake Mount St Helens Washington

Download or read book Spirit Lake Mount St Helens Washington written by United States. Army. Corps of Engineers. Portland District and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spirit Lake Mount St Helens Washington Limnological and Bacteriological Investigations

Download or read book Spirit Lake Mount St Helens Washington Limnological and Bacteriological Investigations written by Douglas W. Larson and published by . This book was released on 1987 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cataclysmic eruption of Mount St. Helens, Washington, on 18 May 1980, filled nearby Spirit Lake with timber and volcanic debris and completely blocked the lake's natural outlet. The lake, which the outlet had previously kept in hydrological balance, was hence-forth impounded in a closed, hydrologically unstable basin by a debris dam 150-180m thick. This event greatly altered the limnology of Spirit Lake and resulted in extremely poor water quality. Some post-eruption water quality characteristics included whole-lake anoxia, which persisted for months; and extraordinarily high concentrations of sulfides, methane, reduced iron and manganese, phosphorus, and dissolved organic matter. Concentrations of total bacteria were thought to be unprecedented for natural lakes. Keywords: Limnology, Water quality, Bacteriology, Biogeochemical processes, Volcanic effects, Lakes.

Book Spirit Lake Mount St Helens Washington Limnological and Bacteriological Investigations

Download or read book Spirit Lake Mount St Helens Washington Limnological and Bacteriological Investigations written by Douglas W. Larson and published by . This book was released on 1987 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cataclysmic eruption of Mount St. Helens, Washington, on 18 May 1980, filled nearby Spirit Lake with timber and volcanic debris and completely blocked the lake's natural outlet. The lake, which the outlet had previously kept in hydrological balance, was hence forth impounded in a closed, hydrologically unstable basin by a debris dam 150-180m thick. This event greatly altered the limnology of Spirit Lake and resulted in extremely poor water quality. Some post-eruption water quality characteristics included whole-lake anoxia, which persisted for months; and extraordinarily high concentrations of sulfides, methane, reduced iron and manganese, phosphorus, and dissolved organic matter. Concentrations of total bacteria reached 1X10 cells/ml, thought to be unprecedented for natural lakes. This report describes the post-eruption limnological recovery of Spirit Lake, Washington, 1980 to 1986. Other topics of discussion include the limnological impacts of lake drawdown, the effects of Spirit Lake release flows on receiving waters in the North Fork Toutle River basin, and the bacteriology of lakes and rivers in the Mount St. Helens blast zone. Keywords: Limnology; Water quality; Bacteriology; Biogeochemical processes; Volcanic effects; Lakes.

Book Selected Water Resources Abstracts

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ecological Responses at Mount St Helens Revisited 35 years after the 1980 Eruption

Download or read book Ecological Responses at Mount St Helens Revisited 35 years after the 1980 Eruption written by Charles M. Crisafulli and published by Springer. This book was released on 2018-01-30 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book builds on existing work exploring succession, disturbance ecology, and the interface between geophysical and biological systems in the aftermath of the 1980 eruptions of Mount St. Helens. The eruption was dramatic both in the spatial extent of impacts and the range of volcanic disturbance types and intensities. Complex geophysical forces created unparalleled opportunities to study initial ecological responses and long-term succession processes that occur in response to a major contemporary eruption across a great diversity of ecosystems—lowland to alpine forests, meadows, lakes, streams, and rivers. These factors make Mount St. Helens an extremely rich environment for learning about the ecology of volcanic areas and, more generally, about ecosystem response to major disturbance of many types, including land management. Lessons about ecological recovery at Mount St. Helens are shaping thought about succession, disturbance ecology, ecosystem management, and landscape ecology. In the first five years after the eruption several syntheses documented the numerous, intensive studies of ecological recovery. The 2005 volume “Ecological Responses to the 1980 Eruption of Mount St. Helens” (Springer Publishing) was the first ecological synthesis since 1987 of the scores of ecological studies underway in the area. More than half of the world’s published studies on plant and animal responses to volcanic eruptions have taken place at Mount St. Helens. The 25-year synthesis, which generally included investigations (i.e., data) from 1980-2000, made it possible to more thoroughly analyze initial stages of ecological responses and to test the validity of early interpretations and the duration of early phenomena. And 35 years after the eruption, it is time for many of the scientists working in the first three-decade, post-eruption period to pass the science baton to the next generation of scientists to work at Mount St. Helens, and a synt hesis a t this time of transfer of responsibility to a younger cohort of scientists will be an enormous asset to the continuation of work at the volcano.

Book Water Quality Investigations

Download or read book Water Quality Investigations written by United States. Army. Corps of Engineers. Portland District and published by . This book was released on 1983 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Selected Water Resources Abstracts

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 1310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spirit Lake Permanent Outlet Near Mount St Helens Alternative Strategies

Download or read book Spirit Lake Permanent Outlet Near Mount St Helens Alternative Strategies written by and published by . This book was released on 1984 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Government Reports Annual Index

Download or read book Government Reports Annual Index written by and published by . This book was released on 1987 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Book Government Reports Announcements Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1988-11 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of the 1980 Eruption of Mount St Helens on the Limnological Characteristics of Selected Lakes in Western Washington

Download or read book Effects of the 1980 Eruption of Mount St Helens on the Limnological Characteristics of Selected Lakes in Western Washington written by S. S. Embrey and published by . This book was released on 1988 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: