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Full-Text Articles in Physical Sciences and Mathematics
A Collection Of On-Ice Arctic Measurements 1879-2013, Ryan Avila
A Collection Of On-Ice Arctic Measurements 1879-2013, Ryan Avila
STAR Program Research Presentations
Ice thickness measurements have been taken in the arctic through a variety of means for a long time in order to better understand the long-term changes to sea ice. This project is focused on measurements made directly on the ice by using an auger or electromagnetic sounding which have both been shown to be highly accurate compared to other observational methods. Our first goal is to create and update an archive of sea ice data that collects smaller separated data sets in one easy to access location for other researchers to use. Our second goal is to use this data …
The Influence Of Soil Organic Matter Stabilization Mechanisms On Carbon Mean Residence Time Within Various Ecosystems In The United States, Vicky Lynn Giese, Kate Heckman Phd
The Influence Of Soil Organic Matter Stabilization Mechanisms On Carbon Mean Residence Time Within Various Ecosystems In The United States, Vicky Lynn Giese, Kate Heckman Phd
STAR Program Research Presentations
Some terrestrial ecosystems and soils serve as carbon sinks, partially offsetting rising atmospheric CO2 levels. Physiochemical mechanisms of soil organic matter (SOM) stabilization affect how carbon stocks respond to global warming. In order to clarify the variance in SOM stabilization mechanisms across different soil types, SOM abundance, distribution and mean residence time (MRT) were compared for thirty-two soil samples from six ecosystems across the United States. Soils were previously described, collected and archived by the United States Geological Survey. Samples were processed by LLNL at the Center for Accelerator Mass Spectrometry (CAMS) using density fractionation to separate particulate organics …