Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Steven D. Sargent"'
Autor:
Steven D. Sargent
Publikováno v:
Renaissance Quarterly. 75:1076-1078
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 1583-1597 (2018)
Nitrous oxide (N2O) fluxes measured using the eddy-covariance method capture the spatial and temporal heterogeneity of N2O emissions. Most closed-path trace-gas analyzers for eddy-covariance measurements have large-volume, multi-pass absorption cells
Autor:
Jingyong Ma, Yajuan Wu, Tianshan Zha, Peng Liu, Rex P Burgon, Xin Jia, Charles P.-A. Bourque, Xinhua Zhou, Steven D. Sargent, Yujie Bai
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Iss 3, Pp 1259-1267 (2017)
Closed-path eddy-covariance (EC) systems are used to monitor exchanges of trace gases (e.g., carbon dioxide [CO2], water vapor [H2O], nitrous oxide and methane) between the atmosphere and biosphere. Traditional EC-intake systems are equipped with inl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbb885adfbd48d8e3946461e0027fc10
https://www.atmos-meas-tech.net/10/1259/2017/
https://www.atmos-meas-tech.net/10/1259/2017/
Autor:
Annelise Maier, Steven D. Sargent
Translated into English for the first time, the writings of the twentieth-century scholar Annelise Maier on late medieval natural philosophy are here made accessible to a broader audience. The seven selections represent both Maier's earlier and later
Autor:
John M. Baker, K. Billmark, M. Erickson, Xuhui Lee, J. Greene, Ning Hu, Timothy J. Griffis, Xin Zhang, Wei Xiao, Steven D. Sargent, Natalie M. Schultz
Publikováno v:
Boundary-Layer Meteorology. 137:307-326
The oxygen isotope composition of evapotranspiration (δ F ) represents an important tracer in the study of biosphere–atmosphere interactions, hydrology, paleoclimate, and carbon cycling. Here, we demonstrate direct measurement of δ F based on the
Publikováno v:
Journal of Hydrology. 349:489-500
The D/H and (18)O/(16)O ratios in atmospheric water vapor provide rich information on the hydrological cycle and gaseous exchange processes between the terrestrial vegetation and the atmosphere. In this paper, we have demonstrated the feasibility to
Publikováno v:
Agricultural and Forest Meteorology. 135:44-60
Stable isotopes of carbon dioxide (CO2) can be used as natural tracers to better understand carbon cycle processes and exchange pathways between the biosphere and atmosphere. In this study, we used a tunable diode laser (TDL) technique for continuous
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 22:555-565
In this paper a system for in situ measurement of H216O/H218O in air based on tunable diode laser (TDL) absorption spectroscopy is described. Laboratory tests showed that its 60-min precision (one standard deviation) was 0.21‰ at a water vapor volu
Publikováno v:
Agricultural and Forest Meteorology. 124:15-29
The combination of micrometeorological and stable isotope techniques offers a relatively new approach for elucidating ecosystem-scale processes. Here we combined a micrometeorological gradient technique with tunable diode laser absorption spectroscop
Publikováno v:
Agricultural and Forest Meteorology. 118:1-19
The stable isotope content of atmospheric CO2 provides information about ecosystem carbon–water relations and biosphere–atmosphere carbon exchange. Virtually every isotope study within these fields has required air sample collection at remote loc