Analysis Of A 24 Year Photographic Record Of Nisqually Glacier Mount Rainier National Park Washington

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Analysis Of A 24 Year Photographic Record Of Nisqually Glacier Mount Rainier National Park Washington

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Author : Fred M. Veatch
language : en
Publisher:
Release Date : 1969

Analysis Of A 24 Year Photographic Record Of Nisqually Glacier Mount Rainier National Park Washington written by Fred M. Veatch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Glaciers categories.

Additional title page description: A contribution fo the International Hydrological Decade.

Analysis Of A 24 Year Photographic Record Of Nisqually Glacier Mount Rainier National Park Washington

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Author : Fred M. Veatch
language : en
Publisher:
Release Date : 1969

Analysis Of A 24 Year Photographic Record Of Nisqually Glacier Mount Rainier National Park Washington written by Fred M. Veatch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Glaciers categories.

Analysis Of A 24 Year Photographic Record Of Nisqually Glacier Mount Rainier National Park Washington

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Author : Geological Survey (U.S.)
language : en
Publisher:
Release Date : 1965

Analysis Of A 24 Year Photographic Record Of Nisqually Glacier Mount Rainier National Park Washington written by Geological Survey (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with categories.

Geological Survey Professional Paper

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Author :
language : en
Publisher:
Release Date : 1980

Geological Survey Professional Paper written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Geology categories.

U S Geological Survey Professional Paper

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Author :
language : en
Publisher:
Release Date : 1969

U S Geological Survey Professional Paper written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Geology categories.

Geological Survey Professional Paper

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Author : Geological Survey (U.S.)
language : en
Publisher:
Release Date : 1969

Geological Survey Professional Paper written by Geological Survey (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.

Geomorphic Analysis Of The River Response To Sedimentation Downstream Of Mount Rainier Washington

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Author : Jonathan A. Czuba
language : en
Publisher: U.S. Department of the Interior, U.S. Geological Survey
Release Date : 2012-12-07

Geomorphic Analysis Of The River Response To Sedimentation Downstream Of Mount Rainier Washington written by Jonathan A. Czuba and has been published by U.S. Department of the Interior, U.S. Geological Survey this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-07 with categories.

A study of the geomorphology of rivers draining Mount Rainier, Washington, was completed to identify sources of sediment to the river network; to identify important processes in the sediment delivery system; to assess current sediment loads in rivers draining Mount Rainier; to evaluate if there were trends in streamflow or sediment load since the early 20th century; and to assess how rates of sedimentation might continue into the future using published climate-change scenarios. Rivers draining Mount Rainier carry heavy sediment loads sourced primarily from the volcano that cause acute aggradation in deposition reaches as far away as the Puget Lowland. Calculated yields ranged from 2,000 tonnes per square kilometer per year [(tonnes/km2)/yr] on the upper Nisqually River to 350 (tonnes/km2)/yr on the lower Puyallup River, notably larger than sediment yields of 50–200 (tonnes/km2)/yr typical for other Cascade Range rivers. These rivers can be assumed to be in a general state of sediment surplus. As a result, future aggradation rates will be largely influenced by the underlying hydrology carrying sediment downstream. The active-channel width of rivers directly draining Mount Rainier in 2009, used as a proxy for sediment released from Mount Rainier, changed little between 1965 and 1994 reflecting a climatic period that was relatively quiet hydrogeomorphically. From 1994 to 2009, a marked increase in geomorphic disturbance caused the active channels in many river reaches to widen. Comparing active-channel widths of glacier-draining rivers in 2009 to the distance of glacier retreat between 1913 and 1994 showed no correlation, suggesting that geomorphic disturbance in river reaches directly downstream of glaciers is not strongly governed by the degree of glacial retreat. In contrast, there was a correlation between active-channel width and the percentage of superglacier debris mantling the glacier, as measured in 1971. A conceptual model of sediment delivery processes from the mountain indicates that rockfalls, glaciers, debris flows, and main-stem flooding act sequentially to deliver sediment from Mount Rainier to river reaches in the Puget Lowland over decadal time scales. Greater-than-normal runoff was associated with cool phases of the Pacific Decadal Oscillation. Streamflow-gaging station data from four unregulated rivers directly draining Mount Rainier indicated no statistically significant trends of increasing peak flows over the course of the 20th century. The total sediment load of the upper Nisqually River from 1945 to 2011 was determined to be 1,200,000±180,000 tonnes/yr. The suspended-sediment load in the lower Puyallup River at Puyallup, Washington, was 860,000±300,000 tonnes/yr between 1978 and 1994, but the long-term load for the Puyallup River likely is about 1,000,000±400,000 tonnes/yr. Using a coarse-resolution bedload transport relation, the long-term average bedload was estimated to be about 30,000 tonnes/yr in the lower White River near Auburn, Washington, which was four times greater than bedload in the Puyallup River and an order of magnitude greater than bedload in the Carbon River. Analyses indicate a general increase in the sediment loads in Mount Rainier rivers in the 1990s and 2000s relative to the time period from the 1960s to 1980s. Data are insufficient, however, to determine definitively if post-1990 increases in sediment production and transport from Mount Rainier represent a statistically significant increase relative to sediment-load values typical from Mount Rainier during the entire 20th century. One-dimensional river-hydraulic and sediment-transport models simulated the entrainment, transport, attrition, and deposition of bed material. Simulations showed that bed-material loads were largest for the Nisqually River and smallest for the Carbon River. The models were used to simulate how increases in sediment supply to rivers transport through the river systems and affect lowland reaches. For each simulation, the input sediment pulse evolved through a combination of translation, dispersion, and attrition as it moved downstream. The characteristic transport times for the median sediment-size pulse to arrive downstream for the Nisqually, Carbon, Puyallup, and White Rivers were approximately 70, 300, 80, and 60 years, respectively.

Selected Water Resources Abstracts

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Author :
language : en
Publisher:
Release Date : 1970

Selected Water Resources Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Water categories.

The Challenge Of Rainier 40th Anniversary

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Author : Dee Molenaar
language : en
Publisher: The Mountaineers Books
Release Date : 2011-09-14

The Challenge Of Rainier 40th Anniversary written by Dee Molenaar and has been published by The Mountaineers Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-14 with History categories.

CLICK HERE to download the first chapter of The Challenge of Rainier, 40th Anniversary Edition * Special 40th anniversary edition * Featuring 125 photos, 90 illustrations, and 15 maps * Original cover art by Dee Molenaar Originally published in 1971, The Challenge of Rainier is a classic in mountaineering reference and literature, long considered the definitive work on the climbing history of Mount Rainier. Author Dee Molenaar covers geology, glaciology, and climate; early climbs dating before 1900; the pioneering efforts on over 35 routes in winter and summer; notable summit climbs; mountain tragedies on the steep slopes; and the guides who have led summit seekers over the years. For the 40th anniversary edition new information includes more recent ascents, rescues, mountain guides, and climbing trends; updated statistics through 2010; and a new foreword by famed climber (and former Rainier guide) Ed Viesturs.

The Challenge Of Rainier

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Author : Dee Molenaar
language : en
Publisher: The Mountaineers Books
Release Date : 1971

The Challenge Of Rainier written by Dee Molenaar and has been published by The Mountaineers Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Mountaineering categories.