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Photolysis imprint in the nitrate stable isotope signal in snow and atmosphere of East Antarctica and implications for reactive nitrogen cycling
nitrate stable isotope signal snow atmosphere East Antarctica reactive nitrogen cycling
2009/11/19
The nitrogen (δ15N) and triple oxygen (δ17O and δ18O) isotopic composition of nitrate (NO3−) was measured year-round in the atmosphere and snow pits at Dome C, Antarctica (DC, 75.1° S, 123.3° E)...
The influence of traffic and wood combustion on the stable isotopic composition of carbon monoxide
traffic and wood combustion stable isotopic composition carbon monoxide
2009/5/15
Carbon monoxide in the atmosphere is originating from various combustion and oxidation processes. Recently, the proportion of CO resulting from the combustion of wood for domestic heating may have inc...
New insight into the atmospheric chloromethane budget gained using stable carbon isotope ratios
atmospheric chloromethane budget stable carbon isotope ratios
2009/2/17
Atmospheric chloromethane (CH3Cl) plays an important role in stratospheric ozone destruction, but many uncertainties still exist regarding strengths of both sources and sinks and the processes leading...
Measurements of CO2, its stable isotopes, O2/N2, and 222Rn at Bern, Switzerland
Measurements of CO2 stable isotopes O2/N2 222Rn Switzerland
2009/1/8
A one-year time series of atmospheric CO2 measurements from Bern, Switzerland, is presented. O2/N2 and Ar/N2 ratios as well as stable carbon and oxygen isotopes of CO2 and δ29N2, δ34O2 and δ36Ar were ...
Stable isotopes provide revised global limits of aerobic methane emissions from plants
Stable isotopes aerobic methane emissions plants
2008/11/27
Recently Keppler et al. (2006) discovered a surprising new source of methane – terrestrial plants under aerobic conditions, with an estimated global production of 62–236 Tg yr−1 by an unknown me...
Turbulence dissipation rate derivation for meandering occurrences in a stable planetary boundary layer
turbulence dissipation rate derivation meandering occurrences boundary layer
2008/11/3
A new formulation for the turbulence dissipation rate ε occurring in meandering conditions has been presented. The derivation consists of a MacLaurin series expansion of a lateral dispersion parameter...
A compact and stable eddy covariance set-up for methane measurements using off-axis integrated cavity output spectroscopy
compact stable eddy covariance set-up methane measurements off-axis spectroscopy
2008/10/27
A Fast Methane Analyzer (FMA) is assessed for its applicability in a closed path eddy covariance field set-up in a peat meadow. The FMA uses off-axis integrated cavity output spectroscopy combined wit...