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Showing 1 to 12 of 12 for “"Gulf of Alaska"”.
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Hydrographic Variability on Decadal and Interdecadal Scales in the Northern Gulf of Alaska
… nutrients into the euphotic zone. A time series of hydrographic measurements, tem perature and salinity versus depth, at a coastal site in the northern Gulf of Alaska is used to determine the seasonal and interannual variations in the MLD. Data from this station called GAK 1 (59°50.7‘X. …
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Mixed Layer Dynamics Along the Seward Line in the Northern Gulf of Alaska
<p>The northern Gulf of Alaska marine ecosystem is very productive with a "nutrient paradox". Primary producers require light and nutrients for photosynthesis. A primary source of nutrients is the deep ocean, while light is available in a relatively shallow layer in the upper ocean. In most …
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Acoustic full-waveform to elastic pre-stack seismic inversion of the Yakutat Terrane, Gulf of Alaska
The Yakutat-North American collision in the Gulf of Alaska has developed a complex subduction zone followed by major deformations such as the Chugach-St Elias mountain range creation, intensified exhumation, fold and thrust-fault formation. I generate a compressional velocity model of the Yakutat …
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Late Neogene Uplift of the Fairweather Ground on the Basis of Bathymetric and Seismic Data from the Gulf of Alaska
… to the Fairweather Ground basement in the Gulf of Alaska are the focus for seismic interpretation using public domain seismic reflection data. The late Tertiary and early Quaternary sections of the Yakataga Formation record a glacial/ interglacial climate change sequence with increasing …
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Annual and Interannual Variability in the Wind Field and the Hydrography Along the Seward Line in the Northern Gulf of Alaska
… slope (GAK13 58.1°N, 147.8°W). The complexity of the interannual hydrographic variability in this area stems from the interacting influences of local forcing such as winds, coastal freshwater discharge, eddies, fronts and remote forcing like El Niño-Southern Oscillation. Until now, the …
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Clams and climate: implications for measuring seasonality in the marine bivalve, saxidomus gigantea
Sclerochronological and sclerochemical analysis of shellfish remains from archaeological sites afford the opportunity to understand environmental change and its impacts on human populations through time. During the Late Holocene in the Gulf of Alaska, the paleoenvironmental record reflects …
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Structure and Tectonics of the Offshore Region Close to Kayak Island from Geophysical Information
The principal goal of this research is to clarify the structure and tectonic setting of the Southern Alaska and, specifically, the offshore area close to Kayak Island. Seismic reflection data collected in 1976 in the offshore region of Kayak Island in the Gulf of Alaska were reprocessed in order to …
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On tropospheric rivers
… is a local filamentary structure on a daily map of vertically integrated moisture flux. Firstly, an automated procedure for identifying and tracking these rivers (named TRICKS, i.e., the Tropospheric River Identifying and traCKing Scheme) is described and its performance is evaluated. This …
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Fatigue design of oil tankers: a design approach
The oil tankers that operate on the Trans-Alaska Pipeline Service (TAPS) route have exhibited a large number of structural fatigue cracks. These cracks can be attributed to the increase in use of high strength steel in tanker construction and to the harsh operating environment in the Gulf of …
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In-Stream Reactivity of Dissolved Organic Matter and Nutrients in Proglacial Watersheds
… with glacial landcover along the coast of southeast Alaska were examined to better understand in-stream processing of dissolved organic matter (DOM) and nutrients during downstream transport. Specifically, this study paired glacial streams with nearby non-glacial streams and compared …
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Glaciochemical records from the Saint Elias Mountains, Yukon, Canada
… been recovered from the North Atlantic sector of the Arctic, there is a gap in our understanding of climactic and environmental change in the North Pacific. Glaciochemical records from the St. Elias Mountains spanning an elevation range of three to five km provide a three-dimensional view of …
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Relationships between wintertime modes of atmospheric variability on intermediate and long timescales
… (> 30 days) timescales is examined. Sectoral EOF analysis shows the leading patterns of variability on short timescales to correspond to the climatological storm tracks, and on long timescales to resemble the North Atlantic Oscillation (NAO) and the Pacific-North America (PNA) pattern. The …