Zobrazeno 1 - 10
of 14
pro vyhledávání: '"S. N. Vardag"'
Autor:
M. Knapp, R. Kleinschek, S. N. Vardag, F. Külheim, H. Haveresch, M. Sindram, T. Siegel, B. Burger, A. Butz
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 2257-2275 (2024)
We present the first results of a ground-based imaging experiment using a shortwave infrared spectral camera to quantify carbon dioxide (CO2) emissions from a coal-fired power plant in Mannheim, Germany. The power plant emits more than 4.9 Mt CO2 yr
Externí odkaz:
https://doaj.org/article/95759f502e184a3f8c99e64fa6efe590
Autor:
S. N. Vardag, R. Maiwald
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 1885-1902 (2024)
To design a monitoring network for estimating CO2 fluxes in an urban area, a high-resolution observing system simulation experiment (OSSE) is performed using the transport model Graz Mesoscale Model (GRAMMv19.1) coupled to the Graz Lagrangian Model (
Externí odkaz:
https://doaj.org/article/0dce337975514a87a5d049d3110cb69c
Autor:
T. D. Schmitt, J. Kuhn, R. Kleinschek, B. A. Löw, S. Schmitt, W. Cranton, M. Schmidt, S. N. Vardag, F. Hase, D. W. T. Griffith, A. Butz
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 6097-6110 (2023)
Monitoring the atmospheric concentrations of the greenhouse gases (GHG) carbon dioxide (CO2) and methane (CH4) is a key ingredient for fostering our understanding of the mechanisms behind the sources and sinks of these gases and for verifying and qua
Externí odkaz:
https://doaj.org/article/e9b3a67155e54af193856de3f16623fa
Autor:
A. Luther, J. Kostinek, R. Kleinschek, S. Defratyka, M. Stanisavljević, A. Forstmaier, A. Dandocsi, L. Scheidweiler, D. Dubravica, N. Wildmann, F. Hase, M. M. Frey, J. Chen, F. Dietrich, J. Nȩcki, J. Swolkień, C. Knote, S. N. Vardag, A. Roiger, A. Butz
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 5859-5876 (2022)
Given its abundant coal mining activities, the Upper Silesian Coal Basin (USCB) in southern Poland is one of the largest sources of anthropogenic methane (CH4) emissions in Europe. Here, we report on CH4 emission estimates for coal mine ventilation f
Externí odkaz:
https://doaj.org/article/1e462bf5baa24837a755948471221587
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 1549-1563 (2018)
In complex and urban environments, atmospheric trace gas composition is highly variable in time and space. Point measurement techniques for trace gases with in situ instruments are well established and accurate, but do not provide spatial averagin
Externí odkaz:
https://doaj.org/article/54b26e104d2b4e5ebed7a3aa3c3f0ebe
Publikováno v:
Biogeosciences, Vol 13, Iss 14, Pp 4237-4251 (2016)
Different carbon dioxide (CO2) emitters can be distinguished by their carbon isotope ratios. Therefore measurements of atmospheric δ13C(CO2) and CO2 concentration contain information on the CO2 source mix in the catchment area of an atmospheric meas
Externí odkaz:
https://doaj.org/article/d3efa1b1690145a0be2dbb9c65b7f504
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 22, Pp 12705-12729 (2015)
We investigate different methods for estimating anthropogenic CO2 using modeled continuous atmospheric concentrations of CO2 alone, as well as CO2 in combination with the surrogate tracers CO, δ13C(CO2) and Δ14C(CO2). These methods are applied at t
Externí odkaz:
https://doaj.org/article/e54b9b98b1f64a41a21766c2e6e3e02a
Publikováno v:
Atmospheric Measurement Techniques, Vol 8, Iss 2, Pp 579-592 (2015)
The continuous in situ measurement of δ18O in atmospheric CO2 opens a new door to differentiating between CO2 source and sink components with high temporal resolution. Continuous 13C–CO2 measurement systems have already been commercially available
Externí odkaz:
https://doaj.org/article/bf4f3c0f823d4f6f8fbfe8329d894202
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 16, Pp 8403-8418 (2014)
A 2-month measurement campaign with a Fourier transform infrared analyser as a travelling comparison instrument (TCI) was performed at the Advanced Global Atmospheric Gases Experiment (AGAGE) and World Meteorological Organization (WMO) Global Atmosph
Externí odkaz:
https://doaj.org/article/00c4a0704c1f40448f838e7bb30a9f0b
Autor:
M Jungmann, S N Vardag, F Kutzner, F Keppler, M Schmidt, N Aeschbach, U Gerhard, A Zipf, S Lautenbach, A Siegmund, T Goeschl, A Butz
Publikováno v:
Climate Action. 1
While the international community has made progress in adopting goals and agreements in the field of climate change mitigation, efforts to reduce greenhouse gas (GHG) emissions are significantly lacking behind global ambitions for acceptable climate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a56eaedf172b9c1b67608c8e4c7fda8
https://doi.org/10.1007/s44168-022-00007-4
https://doi.org/10.1007/s44168-022-00007-4