Now showing items 11-14 of 14
Reconciling diatom productivity and iron flux in the southern ocean
(Georgia Institute of Technology, 2015-04-24)
Iron plays an important role in the regulation of biological productivity and the carbon cycle of the Southern Ocean. Recently, synchrotron X-ray spectromicroscopy revealed that molar iron to silicon (Fe:Si) ratios in ...
Interactions between nitrogen fixation and methane cycling in boreal peat bogs
(Georgia Institute of Technology, 2015-04-27)
Microbial nitrogen (N2) fixation supplies important nitrogen inputs to boreal peatlands, extremely oligotrophic ecosystems dominated by Sphagnum mosses. In this study, we coupled major and trace nutrient analyses and rate ...
Dynamical and thermodynamical influences of the tropics and midlatitudes on arctic hydroclimate variability
(Georgia Institute of Technology, 2015-05-11)
The Arctic is an important component of the Earth’s climate system, and it is a region dynamically coupled to climate phenomena at lower latitudes, through both atmospheric and oceanic paths. The coupling has significant ...
Enhanced dissolved organic matter recovery from saltwater samples with coupled electrodialysis and solid phase extraction
(Georgia Institute of Technology, 2015-12-01)
Complexities associated with dissolved organic matter (DOM) isolation from seawater have hampered compositional characterization of this key component of global carbon and nutrient cycles. Two techniques, Electrodialysis ...