Glacier Melt Modelling in the Donjek Range, St. Elias Mountains, Yukon Territory PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Glacier Melt Modelling in the Donjek Range, St. Elias Mountains, Yukon Territory PDF full book. Access full book title Glacier Melt Modelling in the Donjek Range, St. Elias Mountains, Yukon Territory by Brett A. Wheler. Download full books in PDF and EPUB format.
Author: Brett A. Wheler Publisher: ISBN: Category : Glaciers Languages : en Pages : 568
Book Description
Toward addressing the challenges associated with regional glacier melt modelling, I investigate the physical mechanisms of glacier melt using energy balance models, then test empirical temperature-index melt models for regional applications. First, five energy balance models are applied to two glaciers in the Donjek Range, St. Ẽlias Mountains in order to quantify the differences between various treatments of the glacier surface temperature and subsurface heat flux. A model that assumes a constant 0°C surface temperature overestimates cumulative melt by 9{u2013}13%, but a simple model that computes surface temperatures from the residual of the energy balance yields significant improvement. Second, I evaluate the transferability of spatially-distributed temperature-index melt models through the application of calibrated model parameters to periods and locations that differ from those used for calibration. Results show that the calibrated model parameters can be transferred between the study glaciers with minimal reductions in skill.
Author: Brett A. Wheler Publisher: ISBN: Category : Glaciers Languages : en Pages : 568
Book Description
Toward addressing the challenges associated with regional glacier melt modelling, I investigate the physical mechanisms of glacier melt using energy balance models, then test empirical temperature-index melt models for regional applications. First, five energy balance models are applied to two glaciers in the Donjek Range, St. Ẽlias Mountains in order to quantify the differences between various treatments of the glacier surface temperature and subsurface heat flux. A model that assumes a constant 0°C surface temperature overestimates cumulative melt by 9{u2013}13%, but a simple model that computes surface temperatures from the residual of the energy balance yields significant improvement. Second, I evaluate the transferability of spatially-distributed temperature-index melt models through the application of calibrated model parameters to periods and locations that differ from those used for calibration. Results show that the calibrated model parameters can be transferred between the study glaciers with minimal reductions in skill.
Author: Andrew Hugh MacDougall Publisher: ISBN: Category : Glaciers Languages : en Pages : 374
Book Description
Modelling melt from glaciers is crucial to assessing regional hydrology and eustatic sea-level rise. To investigate melt-model transferability, a distributed energy-balance melt model (DEBM) is applied to two glaciers of opposing aspects in the Donjek Range of the St. Elias Mountains, Yukon Territory, Canada. An analysis is conducted in four stages to assess the transferability of the DEBM in space and time: (1) locally derived model parameter values and meteorological forcing variables are used to assess model skill; (2) model parameter values are transferred between glacier sites and between years of study; (3) measured meteorological forcing variables are transferred between glaciers, using locally derived parameter values; (4) both model parameter values and measured meteorological forcing variables are transferred from one glacier site to the other, treating the second glacier site as an extension of the first. The model has high transferability in time, but has limited transferability in space.
Author: John Menzies Publisher: Elsevier ISBN: 0081005253 Category : Science Languages : en Pages : 859
Book Description
Past Glacial Environments, Second Edition, presents a revised and updated version of the very successful first edition of Menzies' book, covering a breadth of topics with a focus on the recognition and analysis of former glacial environments, including the pre-Quaternary glaciations. The book is made up of chapters written by various geological experts from across the world, with the editor's expertise and experience bringing the chapters together. This new and updated volume includes at least 45% new material, along with five new chapters that include a section on techniques and methods. Additionally, this new edition is presented in full color and features a large collection of photographs, line diagrams, and tables with examples of glacial environments and landscapes that are drawn from a worldwide perspective. Informative knowledge boxes and case studies are included, helping users better understand critical issues and ideas. - Provides the most complete reference concerning the study of glacial processes and their geological, sedimentological, and geomorphological products - Comprised of chapters written by various geological experts from across the world - Includes specific case studies to alert readers to important ideas and issues - Uses text boxes throughout to explain key concepts from glacial literature - Presents full color photographs, line diagrams, and tables throughout
Author: Publisher: Academic Press ISBN: 0123964733 Category : Nature Languages : en Pages : 787
Book Description
Snow and Ice-Related Hazards, Risks, and Disasters provides you with the latest scientific developments in glacier surges and melting, ice shelf collapses, paleo-climate reconstruction, sea level rise, climate change implications, causality, impacts, preparedness, and mitigation. It takes a geo-scientific approach to the topic while also covering current thinking about directly related social scientific issues that can adversely affect ecosystems and global economies. Puts the contributions from expert oceanographers, geologists, geophysicists, environmental scientists, and climatologists selected by a world-renowned editorial board in your hands Presents the latest research on causality, glacial surges, ice-shelf collapses, sea level rise, climate change implications, and more Numerous tables, maps, diagrams, illustrations and photographs of hazardous processes will be included Features new insights into the implications of climate change on increased melting, collapsing, flooding, methane emissions, and sea level rise
Author: Brett A. Wheler
Author: Brett A. Wheler
Author: Andrew Hugh MacDougall
Author: John Menzies
Author: 
Author: 
Author: 
Author: 
Author: Richard S. Williams
Author: 
Author: