Searched for: subject:"Atmospheric%5C+chemistry"
(1 - 20 of 45)

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Pandey, S. (author), Houweling, S. (author), Krol, M. (author), Aben, I. (author), Nechita-Banda, N. (author), Thoning, K. (author), Rockmann, T. (author), Yin, Y. (author), Segers, A.J. (author), Dlugokencky, E.J. (author)
We quantify the impact of atmospheric transport and limited marine boundary layer sampling on changes in global and regional methane burdens estimate using tracer transport model simulations with annually repeating methane emissions and sinks but varying atmospheric transport patterns. We find the 1σ error due to this transport and sampling...
article 2019
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Escudero, M. (author), Segers, A. (author), Kranenburg, R. (author), Querol, X. (author), Alastuey, A. (author), Borge, R. (author), de la Paz, D. (author), Gangoiti, G. (author), Schaap, M. (author)
Tropospheric <span classCombining double low line"inline-formula">O3</span> remains a major air-quality issue in the Mediterranean region. The combination of large anthropogenic emissions of precursors, transboundary contributions, a warm and dry aestival climate, and topographical features results in severe cases of photochemical pollution....
article 2019
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Court, A.J. (author), Bezy, J.L. (author), Levelt, P. (author), Siegl, M. (author), Leemhuis, A.P. (author), van de Valk, N.C.J. (author), Veefkind, P. (author)
The impact of NO2 and other atmospheric trace gases on health and the environment is now acknowledged by governments around the world. The sources, both natural and anthropogenic, have been shown to affect the quality of life due to low air quality in densely populated areas. Consequently, the need for accurate global NO2 measurements with high...
conference paper 2018
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Fioletov, V. (author), McLinden, C.A. (author), Kharol, S.K. (author), Krotkov, N.A. (author), Li, C. (author), Joiner, J. (author), Moran, M.D. (author), Vet, R. (author), Visschedijk, A.J.H. (author), Denier Van Der Gon, H.A.C. (author)
Reported sulfur dioxide (SO2) emissions from US and Canadian sources have declined dramatically since the 1990s as a result of emission control measures. Observations from the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite and ground-based in situ measurements are examined to verify whether the observed changes from SO2 abundance...
article 2017
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Otter, G. (author), Dijkhuizen, N. (author), Vosteen, A. (author), Brinkers, S. (author), Gür, B. (author), Kenter, P. (author), Sallusti, M. (author), Tomuta, D. (author), Veratti, R. (author), Cappani, A. (author)
The Global Ozone Monitoring Experiment-2[1] (GOME-2) represents one of the European instruments carried on board the MetOp satellite within the ESA’s “Living Planet Program”. Consisting of three flight models (FM’s) it is intended to provide long-term monitoring of atmospheric ozone and other trace gases over a time frame of 15-20 years, thus...
conference paper 2017
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Shaiganfar, R. (author), Beirle, S. (author), Denier van der Gon, H. (author), Jonkers, S. (author), Kuenen, J. (author), Petetin, H. (author), Zhang, Q. (author), Beekmann, M. (author), Wagner, T. (author)
We determined NOx emissions from Paris in summer 2009 and winter 2009/2010 by applying the closed integral method (CIM) to a large set of car multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements performed within the framework of the MEGAPOLI project (http://megapoli.dmi.dk/). MAX-DOAS measurements of the tropospheric...
article 2017
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Dammers, E. (author), Vigouroux, C. (author), Palm, M. (author), Mahieu, E. (author), Warneke, T. (author), Smale, D. (author), Langerock, B. (author), Franco, B. (author), van Damme, M. (author), Schaap, M. (author), Notholt, J. (author), Erisman, J.W. (author)
We present a retrieval method for ammonia (NH3) total columns from ground-based Fourier transform infrared (FTIR) observations. Observations from Bremen (53.10° N, 8.85° E), Lauder (45.04° S, 169.68° E), Reúnion (20.9° S, 55.50° E) and Jungfraujoch (46.55° N, 7.98° E) were used to illustrate the capabilities of the method. NH3 mean total columns...
article 2015
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Curci, G. (author), Ferrero, L. (author), Tuccella, P. (author), Barnaba, F. (author), Angelini, F. (author), Bolzacchini, E. (author), Carbone, C. (author), Denier Van Der Gon, H.A.C. (author), Facchini, M.C. (author), Gobbi, G.P. (author), Kuenen, J.P.P. (author), Landi, T.C. (author), Perrino, C. (author), Perrone, M.G. (author), Sangiorgi, G. (author), Stocchi, P. (author)
Chemical and dynamical processes lead to the formation of aerosol layers in the upper planetary boundary layer (PBL) and above it. Through vertical mixing and entrainment into the PBL these layers may contribute to the ground-level particulate matter (PM); however, to date a quantitative assessment of such a contribution has not been carried out...
article 2015
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Maresi, L. (author), van der Meulen, W. (author), Vink, H.J.P. (author)
Accurate, reliable and stable long term measurements of Earth's Atmospheric Chemistry from Space are currently done by complex instruments, whose mass is in excess of 100 Kg. TROPOMI is the more recent instrument being developed jointly by ESA and NSO and due for launch in 2015. TROPOMI, consisting of four spectrometers ranging from UV to SWIR,...
conference paper 2014
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van Noije, T.P.C. (author), le Sager, P. (author), Segers, A.J. (author), van Velthoven, P.F.J. (author), Krol, M.C. (author), Hazeleger, W. (author), Williams, A.G. (author), Chambers, S.D. (author)
We have integrated the atmospheric chemistry and transport model TM5 into the global climate model EC-Earth version 2.4. We present an overview of the TM5 model and the two-way data exchange between TM5 and the IFS model from the European Centre for Medium-Range Weather Forecasts (ECMWF), the atmospheric general circulation model of EC-Earth. In...
article 2014
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Manders, A.M.M. (author), van Meijgaard, E. (author), Mues, A.C. (author), Kranenburg, R. (author), van Ulft, L.H. (author), Schaap, M. (author)
Climate change may have an impact on air quality (ozone, particulate matter) due to the strong dependency of air quality on meteorology. The effect is often studied using a global climate model (GCM) to produce meteorological fields that are subsequently used by chemical transport models. However, climate models themselves are subject to large...
article 2012
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Hodnebrog, Ø. (author), Solberg, S. (author), Stordal, F. (author), Svendby, T.M. (author), Simpson, D. (author), Gauss, M. (author), Hilboll, A. (author), Pfister, G.G. (author), Turquety, S. (author), Richter, A. (author), Burrows, J.P. (author), Denier Van Der Gon, H.A.C. (author)
The hot summer of 2007 in southeast Europe has been studied using two regional atmospheric chemistry models; WRF-Chem and EMEP MSC-W. The region was struck by three heat waves and a number of forest fire episodes, greatly affecting air pollution levels. We have focused on ozone and its precursors using state-of-the-art inventories for...
article 2012
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Illiberi, A. (author), Kniknie, B. (author), van Deelen, J. (author), Steijvers, H.L.A.H. (author), Habets, D. (author), Simons, P.J.P.M. (author), Janssen, A.C. (author), Beckers, E.H.A. (author)
Aluminum doped ZnOx (ZnOx:Al) films have been deposited on glass in an in-line industrial-type reactor by a metalorganic chemical vapor deposition process at atmospheric pressure. Tertiary-butanol has been used as oxidant for diethylzinc and trimethylaluminium as dopant gas. ZnOx:Al films can be grown at very high deposition rates of ~14 nm/s...
article 2011
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Roelofs, G.-J. (author), ten Brink, H. (author), Kiendler-Scharr, A. (author), de Leeuw, G. (author), Mensah, A. (author), Minikin, A. (author), Otjes, R. (author), TNO Bouw en Ondergrond (author)
In May 2008, the measurement campaign IMPACT for observation of atmospheric aerosol and cloud properties was conducted in Cabauw, The Netherlands. With a nudged version of the coupled aerosol-climate model ECHAM5-HAM we simulate the size distribution and chemical composition of the aerosol and the associated aerosol optical thickness (AOT) for...
article 2010
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Roelofs, G.-J. (author), ten Brink, H. (author), Kiendler-Scharr, A. (author), de Leeuw, G. (author), Mensah, A. (author), Minikin, A. (author), Otjes, R. (author), TNO Bouw en Ondergrond (author)
In May 2008 the measurement campaign IMPACT for observation of atmospheric aerosol and cloud properties was conducted in Cabauw (The Netherlands). With a nudged version of the coupled aerosol-climate model ECHAM5-HAM we simulate aerosol and aerosol optical thickness (AOT) for the campaign period. Synoptic scale meteorology is represented...
article 2010
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Denier van der Gon, H.A.C. (author), Appelman, W. (author), TNO Bouw en Ondergrond (author)
Large-scale use of leaded gasoline was an important source of the neurotoxin lead in the European environment. After a sequence of regulations on the allowed gasoline lead content and, eventually, a ban on the use of lead additives in gasoline, road transport was no longer considered a source of atmospheric lead. Currently a discrepancy exists...
article 2009
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García-Amorena, I. (author), Wagner-Cremer, F. (author), Gomez Manzaneque, F. (author), van Hoof, T.B. (author), García Álvarez, S. (author), Visscher, H. (author), TNO Bouw en Ondergrond (author)
Here we analyse radiocarbon-dated Quercus leaf assemblages from northern Spain to obtain past atmospheric CO2 mixing ratios for the time period 9000ĝ€"1100 cal BP by means of stomatal frequency analysis. Normalized, stomata based CO2 records show fluctuations of 20 ppmv during the Holocene that parallel Northern Hemisphere palaeotemperature...
article 2008
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Penkett, S.A. (author), Burgess, R.A. (author), Coe, H. (author), Coll, I. (author), Hov, O. (author), Lindskog, A. (author), Schmidbauer, N. (author), Solberg, S. (author), Roemer, M. (author), Thijsse, T. (author), Beck, J. (author), Reeves, C.E. (author), TNO Bouw en Ondergrond (author)
The nitrate radical (NO3) was first measured in the atmosphere in the 1970s and suggestions were made that it could play a major role in oxidising many unsaturated hydrocarbons, such as those emitted from the biosphere. Analysis of the hydrocarbon mix over the North Atlantic Ocean suggested subsequently that the influence of NO3 radical...
article 2007
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de Laat, A.T.J. (author), Landgraf, J. (author), Aben, I. (author), Hasekamp, O. (author), Bregman, B. (author), TNO Bouw en Ondergrond (author)
This paper presents a validation of Global Ozone Monitoring Experiment (GOME) ozone (O3) profiles which are used to evaluate stratospheric transport in the chemistry transport model (CTM) Tracer Model version 5 (TM5) using a linearized stratospheric O3 chemistry scheme. A comparison of GOME O3 profile measurements with independent O3 sonde...
article 2007
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de Vries, J. (author), Laan, E.C. (author), Levelt, P.F. (author), van den Oord, G.H.J. (author), Veefkind, J.P. (author), Dobber, M.R. (author), Aben, I. (author), Jongma, R.T. (author), Escudero-Sanz, I. (author), Court, A.J. (author), TNO Industrie en Techniek (author)
The Ozone Monitoring Instrument (OMI) on NASA's AURA satellite is one of the first instruments measuring an extensive set of daily air quality parameters from space. This anwers to a growing interest in obtaining space data for the air we breath next to the higher altitude air masses. OMI combines UV-Visible nadir viewing spectroscopy, small...
conference paper 2006
Searched for: subject:"Atmospheric%5C+chemistry"
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