Folders: ROOT > ScienceBase Catalog > National and Regional Climate Adaptation Science Centers > Alaska CASC > FY 2012 Projects ( Show direct descendants )
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ROOT _ScienceBase Catalog __National and Regional Climate Adaptation Science Centers ___Alaska CASC ____FY 2012 Projects
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Abstract (from http://iopscience.iop.org/1748-9326/9/5/055005): Glacier ecosystems are a significant source of bioavailable, yet ancient dissolved organic carbon (DOC). Characterizing DOC in Mendenhall Glacier outflow (southeast Alaska) we document a seasonal persistence to the radiocarbon-depleted signature of DOC, highlighting ancient DOC as a ubiquitous feature of glacier outflow. We observed no systematic depletion in Δ 14 C-DOC with increasing discharge during the melt season that would suggest mobilization of an aged subglacial carbon store. However, DOC concentration, δ 13 C-DOC, Δ 14 C-DOC and fluorescence signatures appear to have been influenced by runoff from vegetated hillslopes above the glacier...
Categories: Publication;
Types: Citation;
Tags: Alaska CASC,
Dissolved organic carbon (DOC),
Forests,
Glacier Runoff,
Glaciers and Permafrost,
Water is a key resource in Alaska: Although it comprises 17 percent of the country’s land area, Alaska contains more than 40 percent of the United States’ surface water. Climate changes are anticipated to greatly impact water processes (hydrology), including water temperature and seasonal precipitation patterns and amounts. Understanding the likely impacts of climate change on hydrology is an important first step toward understanding consequent impacts on natural and human communities. The purpose of this project was to assist with the development of a coordinated state-wide approach for monitoring temperature in streams and lakes. This process was guided by the recommendations of a workshop involving hydrologists,...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2012,
Alaska,
Alaska CASC,
CASC,
Climate Change,
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