Now showing items 1-6 of 6
Satellite ocean color algorithms: a review of applications to the Great Lakes
We review the literature relating to the retrieval of chlorophyll concentrations in the Great Lakes from satellite observations. Most studies show that the satellite estimates of lake chlorophyll concentration are linearly ...
Coordinating Environmental Genomics and Geochemistry Reveals Metabolic Transitions in a Hot Spring Ecosystem
(Public Library of Science, 2012-06)
We have constructed a conceptual model of biogeochemical cycles and metabolic and microbial community shifts within a hot spring ecosystem via coordinated analysis of the ‘‘Bison Pool’’ (BP) Environmental Genome and a ...
The geochemistry of upland ponds, Taylor Valley, Antarctica
(Cambridge University Press, 2012-02)
The McMurdo Dry Valleys of Antarctica are the largest ice-free region on the continent. These valleys contain numerous water bodies that receive seasonal melt from glaciers. For forty years, research emphasis has been ...
Delayed formation of the equatorial ridge on Iapetus from a subsatellite created in a giant impact
(American Geophysical Union, 2012-03)
The great equatorial ridge on Saturn’s moon Iapetus is arguably the most perplexing landform in the solar system. The ridge is a mountain range up to 20 km tall and sitting on the equator of Iapetus, and explaining its ...
An atom counter for measuring Kr-81 and Kr-85 in environmental samples
Due to its simple production and transport processes in the terrestrial environment, the long-lived noble-gas isotope Kr-81 is the ideal tracer for old water and ice in the age range of 10(5)-10(6) years, a range beyond ...
Interaction of Carbon Dioxide with Na-exchanged Montmorillonite at Pressures to 640 Bars: Implications for CO2 Sequestration
Na-exchanged montmorillonite swells upon interacting with CO2 under the conditions P(CO2) ≤ 50 bars, T = 22-47°C, as shown by experiments in high-pressure environmental chambers using powder X-ray diffraction techniques. ...