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Full-Text Articles in Physical Sciences and Mathematics
Collaborative Research: St. Elias Erosion/Tectonics Project (Steep), Peter O. Koons
Collaborative Research: St. Elias Erosion/Tectonics Project (Steep), Peter O. Koons
University of Maine Office of Research Administration: Grant Reports
This is a multi-disciplinary study to address the evolution of the highest coastal mountain range on Earth - the St. Elias Mountains of southern Alaska and northwestern Canada. This orogen has developed over the past few million years as the Yakutat block, a continental-oceanic terrane, has attempted subduction beneath the eastern end of the Aleutian arc-trench system. The ~500 km-long, 150 km-wide St. Elias mountain range is the product of the dynamic balance between rapid uplift induced by crustal convergence and rapid exhumation by a regional system of large, fast-moving temperate glaciers. Most sediments are deposited either on a broad …
Variations In Winter Surface High Pressure In The Northern Hemisphere And Climatological Impacts Of Diminishing Arctic Sea Ice, Kristen D. Fox
Variations In Winter Surface High Pressure In The Northern Hemisphere And Climatological Impacts Of Diminishing Arctic Sea Ice, Kristen D. Fox
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
This study explores the role Arctic sea ice plays in determining mean sea level pressure and 1000 hPa temperatures during Northern Hemisphere winters while focusing on an extended period of October to March. This is accomplished by investigating two regions of the same size and comparable climatic zones and elevations in the Northern Hemisphere. A breakdown of 29 years of reanalysis data into average monthly values, anomalies, trends, and comparisons between regions serves as current data to compare with a computer model control run. Ensuring the control run accurately models current atmospheric patterns, altering the model inputs to have no …