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Folders: ROOT > ScienceBase Catalog > National and Regional Climate Adaptation Science Centers > Alaska CASC > FY 2011 Projects > Assessing Links between Glaciers and the Northern Pacific Coastal Temperate Rainforest Ecosystem ( Show direct descendants )
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ROOT _ScienceBase Catalog __National and Regional Climate Adaptation Science Centers ___Alaska CASC ____FY 2011 Projects _____Assessing Links between Glaciers and the Northern Pacific Coastal Temperate Rainforest Ecosystem Filters
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This publication is a product from the 2011 Alaska CSC supported project "Assessing the Sensitivity of Alaska’s Coastal Rainforest Ecosystems to Changes in Glacier Runoff". Abstract from paper: Iceberg calving is known to release substantial seismic energy, but little is known about the specific mechanisms that produce calving icequakes. At Yahtse Glacier, a tidewater glacier on the Gulf of Alaska, we draw upon a local network of seismometers and focus on 80 hours of concurrent, direct observation of the terminus to show that calving is the dominant source of seismicity. To elucidate seismogenic mechanisms, we synchronized video and seismograms to reveal that the majority of seismic energy is produced during...
Categories: Publication;
Types: Citation;
Tags: Alaska CASC,
Forests,
Glaciers and Permafrost,
Gulf of Alaska,
Iceberg calving,
During the summer in the northeast Pacific Ocean, the Alaska Coastal Current sweeps water with temperatures in excess of 12 °C past the mouths of glacierized fjords and bays. The extent to which these warm waters affect the mass balance of Alaskan tidewater glaciers is uncertain. Here we report hydrographic measurements made within Icy Bay, Alaska, and calculate rates of submarine melt at Yahtse Glacier, a tidewater glacier terminating in Icy Bay. We find strongly stratified water properties consistent with estuarine circulation and evidence that warm Gulf of Alaska water reaches the head of 40 km - long Icy Bay, largely unaltered. A 10 - 20 m layer of cold, fresh, glacially-modified water overlies warm, saline...
Categories: Publication;
Types: Citation;
Tags: Alaska CASC,
Alaska Coastal Current,
Forests,
Glaciers and Permafrost,
Gulf of Alaska,
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