Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Getachew A. Adnew"'
Autor:
Getachew A. Adnew, Carl Meusinger, Nicolai Bork, Michael Gallus, Mildrid Kyte, Thomas Rosenørn, Matthew S. Johnson, Vitalijs Rodins
Publikováno v:
AIMS Environmental Science, Vol 3, Iss 1, Pp 141-158 (2016)
Gas-phase advanced oxidation (GPAO) is an emerging air cleaning technology based on the natural self-cleaning processes that occur in the Earth’s atmosphere. The technology uses ozone, UV-C lamps and water vapor to generate gas-phase hydroxyl radic
Externí odkaz:
https://doaj.org/article/4fe3531e9cb6420ca45f2fa8813e7c2a
Autor:
Getachew Agmuas Adnew, Magdalena E. G. Hofmann, Thijs L. Pons, Gerbrand Koren, Martin Ziegler, Lucas J. Lourens, Thomas Röckmann
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
Abstract The clumped isotope composition (Δ47, the anomaly of the mass 47 isotopologue relative to the abundance expected from a random isotope distribution) of CO2 has been suggested as an additional tracer for gross CO2 fluxes. However, the effect
Externí odkaz:
https://doaj.org/article/03efb53051f5495dbba61126132fb58d
Publikováno v:
Plant Physiology. 192:1234-1253
Mesophyll conductance to CO2 from the intercellular air space to the CO2–H2O exchange site has been estimated using δ18O measurements (gm18). However, the gm18 estimates are affected by the uncertainties in the δ18O of leaf water where the CO2–
Autor:
Robbert Petrus Johannes Moonen, Getachew Agmuas Adnew, Oscar Karel Hartogensis, Jordi Vilà-Guerau de Arellano, David Joan Bonell Fontas, Thomas Röckmann
Current understanding of land-atmosphere exchange fluxes is limited by the fact that available observational techniques mainly quantify net fluxes, which are the sum of generally larger, bi-directional fluxes that partially cancel out. As a consequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0674d7ad68c24c0fcecc55dbc23182f3
https://doi.org/10.5194/egusphere-2023-785
https://doi.org/10.5194/egusphere-2023-785
Autor:
Getachew Agmuas Adnew, Moritz Schroll, Sarah Elise Sapper, Thomas Röckmann, Maria Elena Popa, Christian Juncher Jørgensen, Frank Keppler, Carina van der Veen, Malavika Sivan, Thomas Blunier, Jesper Riis Christiansen
Publikováno v:
Adnew, G A, Schroll, M, Sapper, S E, Röckmann, T, Popa, M E, Jørgensen, C J, Keppler, F, van der Veen, C, Sivan, M, Blunier, T & Christiansen, J R 2023, ' Constraining sources and sinks of subglacial methane from the Greenland ice sheet using clumped isotopes ', EGU General Assembly 2023, Vienna, Austria, 24/04/2023-28/04/2023 . https://doi.org/10.5194/egusphere-egu23-5518
The subglacial environment under the Greenland Ice Sheet (GrIS) is an active zone of methane (CH4) production and consumption (1). Recent studies have shown that the meltwaters are a net source of CH4 to the atmosphere (2), although its global signif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::373f5fda53b030fbb2bf56a034b3a6ea
https://curis.ku.dk/ws/files/355678091/Constraining_sources_and_sinks_of_subglacial_methane_from_the_Greenland_ice_sheet_using_clumped_isotopes.pdf
https://curis.ku.dk/ws/files/355678091/Constraining_sources_and_sinks_of_subglacial_methane_from_the_Greenland_ice_sheet_using_clumped_isotopes.pdf
Publikováno v:
Rapid communications in mass spectrometry : RCM. 36(12)
Oxygen isotope exchange between OWe determined experimentally the steady-state αThe experimentally determined steady-state fractionation factors αUpdated theoretical values of α
Publikováno v:
Biogeosciences. 17:3903-3922
Understanding the processes that affect the triple oxygen isotope composition of atmospheric CO2 during gas exchange can help constrain the interaction and fluxes between the atmosphere and the biosphere. We conducted leaf cuvette experiments under c
Autor:
Wouter Peters, Bart Kruijt, Michiel K. van der Molen, Gerbrand Koren, Getachew A. Adnew, Jordi Vilà-Guerau de Arellano, Thomas Röckmann
The triple oxygen isotope signature Δ17O in atmospheric CO2 is a potential tracer for gross primary production (GPP). However, interpretation of Δ17O in atmospheric CO2 is complicated by the contributions from respired CO2, isotopic exchange with s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0e8202d455b1819b76ed39102199bc3
https://doi.org/10.5194/egusphere-egu21-13322
https://doi.org/10.5194/egusphere-egu21-13322
Autor:
Martin Ziegler, Getachew A. Adnew, Gerbrand Koren, Thijs L. Pons, Thomas Röckmann, Lucas Joost Lourens, Wouter Peters, Magdalena E. G. Hofmann
Stable isotope (δ13C and δ18O) and mole fraction measurements of CO2 are used to constrain the carbon cycle. However, the gross fluxes of the carbon cycle, especially photosynthesis and respiration, remain uncertain due to the challenging task of d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7e5c2328af60a11a9159e8cca529a1c
https://doi.org/10.5194/egusphere-egu21-9164
https://doi.org/10.5194/egusphere-egu21-9164