Searched for: author%3A%22Vermeulen%2C+A.T.%22
(1 - 20 of 66)

Pages

document
Koffi, E.N. (author), Bergamaschi, P. (author), Karstens, U. (author), Krol, M. (author), Segers, A. (author), Schmidt, M. (author), Levin, I. (author), Vermeulen, A.T. (author), Fisher, R.E. (author), Kazan, V. (author), Klein Baltink, H. (author), Lowry, D. (author), Manca, G. (author), Meijer, H.A.J. (author), Moncrieff, J. (author), Pal, S. (author), Ramonet, M. (author), Scheeren, H.A. (author), Williams, A.G. (author)
We evaluate the capability of the global atmospheric transport model TM5 to simulate the boundary layer dynamics and associated variability of trace gases close to the surface, using radon (222Rn). Focusing on the European scale, we compare the boundary layer height (BLH) in the TM5 model with observations from the National Oceanic and...
article 2016
document
van den Bulk, W.C.M. (author), Vermeulen, A.T. (author), Jongejan, P.A.C. (author), Batenburg, A.M. (author), Popa, M.E. (author), Rockmann, T (author), Fisher, R.E. (author), Lowry, D (author), Nisbet, E.G. (author)
Observations of molecular hydrogen mixing ratio and stable isotopic composition at the Cabauw tall tower in the Netherlands
article 2016
document
Bergamaschi, P. (author), Corazza, M. (author), Karstens, U. (author), Athanassiadou, M. (author), Thompson, R.L. (author), Pison, I. (author), Manning, A.J. (author), Bousquet, P. (author), Segers, A. (author), Vermeulen, A.T. (author), Janssens-Maenhout, G. (author), Schmidt, M. (author), Ramonet, M. (author), Meinhardt, F. (author), Aalto, T. (author), Haszpra, L. (author), Moncrieff, J. (author), Popa, M.E. (author), Lowry, D. (author), Steinbacher, M. (author), Jordan, A. (author), O'Doherty, S. (author), Piacentino, S. (author), Dlugokencky, E. (author)
European CH4 and N2O emissions are estimated for 2006 and 2007 using four inverse modelling systems, based on different global and regional Eulerian and Lagrangian transport models. This ensemble approach is designed to provide more realistic estimates of the overall uncertainties in the derived emissions, which is particularly important for...
article 2015
document
van den Bulk, W.C.M. (author), Hensen, A. (author), Bosveld, F.C. (author), van Huissteden, J. (author), Peltola, O. (author), Helfter, C. (author), Belelli Marchesini, L. (author), Haapanala, S. (author), Laurila, T. (author), Lindroth, A. (author), Nemitz, E. (author), Rockmann, T. (author), Mammarella, I. (author), Vermeulen, A.T. (author)
In this study, the spatial representativeness of eddy covariance (EC) methane (CH4) measurements wasexamined by comparing parallel CH4fluxes from three short (6 m) towers separated by a few kilometresand from two higher levels (20 m and 60 m) at one location. The measurement campaign was held on anintensively managed grassland on peat soil in...
article 2015
document
Karstens, U. (author), Bergamaschi, P. (author), Haszpra, L. (author), Manning, A. (author), Corazza, M. (author), Aalto, T. (author), Meinhardt, F. (author), Steinbacher, M. (author), Jordan, A. (author), Dlugokencky, E. (author), Schmidt, M. (author), Segers, A. (author), Athanassiadou, M. (author), O`Doherty, S. (author), Piacentino, S. (author), Lowry, D (author), Ramonet, M. (author), Thompson, R.L. (author), Popa, M.E. (author), Moncrieff, J. (author), Bousquet, P. (author), Vermeulen, A.T. (author), Pison, I. (author), Janssens-Maenhout, G. (author)
European CH4 and N2O emissions are estimated for 2006 and 2007 using four inverse modelling systems, based on different global and regional Eulerian and Lagrangian transport models. This ensemble approach is designed to provide more realistic estimates of the overall uncertainties in the derived emissions, which is particularly important for...
article 2015
document
Kos, G.P.A. (author), van den Bulk, W.C.M. (author), Hensen, A. (author), Blom, M.J. (author), Nguyen, L. (author), Wesseling, J. (author), Vermeulen, A.T. (author), Berkhout, A.J.C. (author), van der Hoff, G.R. (author), Erbrink, J.J. (author), de Wolff, J. (author), Hooghwerff, J. (author), Energieonderzoek Centrum Nederland (author)
De emissies van stikstofoxiden (NO- NO2) en deeltjes (PM) vanuit de binnenvaart leveren een belangrijke bijdrage aan luchtverontreiniging boven Nederland. Tot nu toe is de verspreiding van die luchtverontreiniging rondom vaarwegen op eenzelfde manier berekend als voor wegverkeer. Echter, het grote vermogen van de motoren in schepen kan er in...
report 2014
document
Vermeulen, A.T. (author), Bousquet, P. (author), Karstens, U. (author), Bergamaschi, P. (author), Moncrieff, J. (author), Haszpra, L. (author), Corazza, M. (author), Aalto, T. (author), Steinbacher, M. (author), Jordan, A. (author), Dlugokencky, E. (author), Chevallier, F. (author), Steele, L.P. (author), O`Doherty, S. (author), Meinhardt, F. (author), Thompson, R.L. (author), Ishijima, K. (author), Saikawa, E. (author), Katra, P.K. (author), Prinn, R.G. (author), Weiss, R.F. (author), Fraser, P.J. (author), Kummel, P.B. (author), Tohjima, Y. (author), van der Laan, S. (author), Popa, M.E. (author)
This study examines N2O emission estimates from 5 different atmospheric inversion frameworks. The 5 frameworks differ in the choice of atmospheric transport model, meteorological data, prior uncertainties and inversion method but use the same prior 5 emissions and observation dataset. The mean emissions for 2006 to 2008 are compared in terms of...
article 2014
document
Vermeulen, A.T. (author), Karstens, U. (author), Hammer, S. (author), Kretschmer, R. (author), Gerbig, C. (author), Biavati, G. (author), Vogel, F. (author), Totsche, K.U. (author)
The mixing height (MH) is a crucial parameter in commonly used transport models that proportionally affects air concentrations of trace gases with sources/sinks near the ground and on diurnal scales. Past synthetic data experiments indicated the possibility to 5 improve tracer transport by minimizing errors of simulated MHs. In this paper we...
article 2014
document
Karstens, U. (author), Bergamaschi, P. (author), Williams, A.G. (author), Chambers, S. (author), Schmidt, M. (author), Ramonet, M. (author), Moncrieff, J. (author), Bousquet, P. (author), Vermeulen, A.T. (author), Locatelli, R. (author), Hourdin, F. (author), Saunois, M (author), Cozic, A. (author), Couvreux, F. (author), Grandpeix, J.-Y. (author), Lefebvre, M.-P. (author), Rio, C. (author), Kazan, V. (author), der S. Laan, van (author), Meijer, H.A.J. (author), Scheeren, H.A. (author), Schlosser, C. (author)
Representation of atmospheric transport is a major source of error in the estimation of greenhouse gas sources and sinks by inverse modelling. Here we assess the impact on trace gas mole fractions of the new physical parameterisations recently implemented in 5 the Atmospheric Global Climate Model LMDz to improve vertical diffusion, mesoscale...
article 2014
document
Ciais, P. (author), Chevallier, F. (author), Agustí-Panareda, A. (author), Massart, S. (author), Boussetta, S. (author), Balsamo, G. (author), Beljaars, A. (author), Deutscher, N.M. (author), Engelen, R. (author), Jones, L. (author), Kivi, R. (author), Paris, J.-D. (author), Peuch, V.-H. (author), Sherlock, V. (author), Vermeulen, A.T. (author), Wennberg, P.O. (author), Wunch, D. (author)
A new global atmospheric carbon dioxide (CO2) real-time forecast is now available as part of the preoperational Monitoring of Atmospheric Composition and Climate – Interim Implementation (MACC-II) service using the infrastructure of the European Centre for Medium- Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS). One of the...
article 2014
document
Vermeulen, A.T. (author), Cabello Ganuza, M. (author), Orza, J.A.G. (author), Galiano, V. (author), Stein, A.F. (author)
The variations in tropospheric transport pathways over a 20 year period, 1990 2009, are studied at six locations in Europe. Three Atlantic (Lisbon, Mace Head, and Cabauw) and three Mediterranean sites (Málaga and Elche in the western part and Lecce in the central Mediterranean) are considered. The work is based on the identification of...
bookPart 2013
document
Vermeulen, A.T. (author), Energieonderzoek Centrum Nederland (author)
Luchtverontreiniging langs wegen is een groot probleem in Nederland. Op vele plekken werden in het verleden de normen, vastgesteld in de Europese richtlijnen, niet gehaald. Ook in de toekomst zal dat niet overal het geval kunnen zijn. Metingen zijn duur en hebben weinig voorspellende waarde. Ook zijn de concentraties in de lucht heel variabel in...
report 2013
document
Vermeulen, A.T. (author), Krol, M.C. (author), Schmidt, M. (author), Popa, M.E. (author), Steinbacher, M. (author), Jordan, A. (author), Krummel, P.B. (author), Langenfelds, R.L. (author), Steele, L.P. (author), Yver, C. (author), Nisbet, E.G. (author), Fisher, R.E. (author), O`Doherty, S. (author), Batenburg, A.M. (author), Pieterse, G. (author), Hammer, S. (author), Röckmann, C. (author), Brenninkmeijer, C.A.M. (author), Grant, A. (author), Wang, H.J. (author), Engel, A. (author), Lowry, D (author), Reimann, S (author), Vollmer, M.K. (author), Forster, G. (author), Sturges, W.T. (author)
This work reassesses the global atmospheric budget of H2 with the TM5 model. The recent adjustment of the calibration scale for H2 translates into a change in the tropospheric burden. Furthermore, the ECMWF Reanalysis-Interim (ERA-Interim) data from the European Centre for Medium-Range Weather Forecasts (ECMWF) used in this study show slower...
article 2013
document
Vermeulen, A.T. (author), Ciais, P. (author), Thompson, R. (author), Haszpra, L. (author), Chevallier, F. (author), Schmidt, M. (author), Piacentino, S. (author), Hammer, S. (author), Bréon, F.-M. (author), Kadygrov, N. (author), Alemanno, M. (author), Apadula, F. (author), Meinhardt, F. (author), Morguí, J.A. (author), Ramonet, M. (author), Necki, J. (author), Yver, C. (author), Broquet, G. (author)
The Bayesian framework of CO2 flux inversions permits estimates of the retrieved flux uncertainties. Here, the reliability of these theoretical estimates is studied through a comparison against the misfits between the inverted fluxes and independent measurements of the CO2 Net Ecosystem Exchange (NEE) made by the eddy covariance technique at...
article 2013
document
Vermeulen, A.T. (author), Jordan, A. (author), Hammer, S. (author), Konrad, G. (author), Laurent, O. (author), Delmotte, M. (author), Hazan, L. (author), Conil, S. (author), Levin, I. (author)
Abstract. In the course of the ICOS (Integrated Carbon Observation System) Demonstration Experiment a feasibility study on the usefulness of a travelling comparison instrument (TCI) was conducted in order to evaluate continuous atmospheric CO2 and CH4 measurements at two European stations. The aim of the TCI is to independently measure ambient...
article 2013
document
Vermeulen, A.T. (author), Energieonderzoek Centrum Nederland (author)
"PreSRM is een software bibliotheek voor rekenmodellen gebruikt bij de beoordeling van luchtkwaliteit. In Nederland schrijft de Regeling Beoordeling Luchtkwaliteit (RBL) voor onder welke condities welke rekenmethodes gebruikt moeten worden om aan de luchtkwaliteitsnormen te toetsen. De RBL is onderdeel van de Wet Luchtkwaliteit. In de RBL worden...
report 2013
document
Jongejan, P.A.C. (author), Vermeulen, A.T. (author), van den Bulk, W.C.M. (author), Popa, M.E. (author), Batenburg, A.M. (author), Röckmann, T. (author)
x
other 2012
document
Vermeulen, A.T. (author), Erbrink, J.J. (author), Bosveld, F.C. (author), Sauter, F. (author), van Ratinger, S. (author)
"In dit rapport is uitvoerig nagegaan welke parameters in de meteorologische preprocessing onderhevig zijn aan keuzemogelijkheden die bij verschillende modellen worden toegepast. Het gaat dan om de volgende zaken: ? Bepaling van wrijvingssnelheid u* en Monin-Obukhov lengte L en begrenzingen ervan ? De windsnelheid (en windrichting; het windveld)...
other 2012
document
Vermeulen, A.T. (author), Krol, M.C. (author), Popa, M.E. (author), Steinbacher, M. (author), Jordan, A. (author), Krummel, P.B. (author), Langenfelds, R.L. (author), Schmidt, M. (author), Steele, L.P. (author), Yver, C. (author), Nisbet, E.G. (author), Fisher, R.E. (author), O`Doherty, S. (author), Wang, Haitao (author), Batenburg, A.M. (author), Röckmann, T. (author), Pieterse, G. (author), Brenninkmeijer, C.A.M. (author), Grant, J. (author), Engel, A. (author), Lowry, D. (author), Reimann, S. (author), Vollmer, M.K. (author), Hammer, S. (author), Forster, G. (author), Sturges, W.T. (author)
Since the industrialisation of fuel cell technology during the 1970s and 80s, molecu3 3 lar hydrogen (H2) has been considered as a clean alternative for fossil fuel based energy 34 carriers. The selective oxidation of H2 by oxygen only produces water, contrary to the 35 combustion of fossil fuels with air that produces carbon dioxide, carbon...
article 2012
document
Vermeulen, A.T. (author), Peters, W. (author), Tolk, L.F. (author), Meesters, A.G.C.A. (author), Dolman, A.J. (author), van der Laan, S. (author), Neubert, R.E.M. (author), Elbers, J.A. (author), Hutjes, R.W.A. (author), Vellinga, O. (author), Meijer, H.A.J. (author)
CO2 fluxes for the Netherlands and surroundings are estimated for the year 2008, from concentration measurements at four towers, using an inverse model. The results are compared to direct CO2 flux measurements by aircraft, for 6 flight tracks over the Netherlands, flown multiple times in each season. We applied the Regional Atmospheric Mesoscale...
article 2012
Searched for: author%3A%22Vermeulen%2C+A.T.%22
(1 - 20 of 66)

Pages