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A single gas chromatograph for accurate atmospheric mixing ratio measurements of CO2,CH4,N2O,SF6 and CO
gas chromatograph atmospheric mixing ratio measurements CO2 CH4 N2O SF6 CO
2010/2/8
We present an adapted gas chromatograph capable of measuring simultaneously and semi-continuously the atmospheric mixing ratios of the greenhouse gases CO2, CH4, N2O and SF6 and the trace gas CO with ...
Regulation of phytoplankton carbon to chlorophyll ratio by light,nutrients and temperature in the Equatorial Pacific Ocean:a basin-scale model
phytoplankton carbon chlorophyll ratio Equatorial Pacific Ocean basin-scale model
2010/1/19
The complex effects of light, nutrients and temperature lead to a variable carbon to chlorophyll (C:Chl) ratio in phytoplankton cells. Using field data collected in the Equatorial Pacific, we derived ...
Relative stability of soil carbon revealed by shifts in δ15N and C:N ratio
Relative stability soil carbon shifts δ15N C:N ratio
2010/1/15
Life on earth drives a continuous exchange of carbon between soils and the atmosphere. Some forms of soil carbon, or organic matter, are more stable and have a longer residence time in soil than other...
Biotic stoichiometric controls on the deep ocean N:P ratio
Biotic stoichiometric controls deep ocean N:P ratio
2010/1/14
We re-examine what controls the deep ocean N:P ratio in the light of recent findings that the C:N:P stoichiometry of phytoplankton varies with growth rate, nutrient and light limitation, species and p...
Evaluation of hydrological models for scenario analyses:signal-to-noise-ratio between scenario effects and model uncertainty
hydrological models scenario analyses signal-to-noise-ratio scenario effects model uncertainty
2010/1/25
Many model applications suffer from the fact that although it is well known that model application implies different sources of uncertainty there is no objective criterion to decide whether a model is...