Results 11 to 20 of about 2,918,823 (240)

Technical note: The new comprehensive atmospheric chemistry module MECCA [PDF]

Atmospheric Chemistry and Physics, 2005
In this technical note we present the multi-purpose atmospheric chemistry model MECCA. Owing to its versatility and modular structure, it can be used for tropospheric as well as stratospheric chemistry calculations. Extending the code to other domains
R. Sander, A. Kerkweg, P. Jöckel, J. Lelieveld   +3 more
doaj   +3 more sources

Simulating atmospheric composition over a South-East Asian tropical rainforest: performance of a chemistry box model [PDF]

, 2010
Atmospheric composition and chemistry above tropical rainforests is currently not well established, particularly for south-east Asia. In order to examine our understanding of chemical processes in this region, the performance of a box model of ...
G. Mills (2189632), L.K. Whalley (7612865), S. Moller (7209410), Edwards, PM, Lee, J, Whalley, LK, Whalley, L.K., Edwards, P. M., P. Misztal, Moller, S., A.R. MacKenzie (7612847), Hewitt, C. N., P. M. Edwards, P. S. Monks, C.N. Hewitt (7604888), Karunaharan, A., Heard, D.E., Furneaux, K.L., T.A.M. Pugh (7612844), J.R. Hopkins (7612859), J. R. Hopkins, C. N. Hewitt, Mills, G, J. Lee, Mills, G., Karunaharan, A, Langford, B, Jones, C. E., Pugh, T.A.M., Mackenzie, Rob, Mackenzie, Angus; id_orcid, Misztal, P., K. L. Furneaux, Heard, D. E., J. Lee (2845193), Misztal, P, G. Mills, T. A. M. Pugh, Jones, C.E., Whalley, L. K., Langford, B., A. R. MacKenzie, Hopkins, JR, Furneaux, K. L., P.M. Edwards (7612850), Mackenzie, A.R., K.L. Furneaux (7612853), Lee, J., S. Moller, C.E. Jones (7605458), P. Misztal (7612862), Edwards, P.M., Hopkins, J.R., Langford, Ben, Hopkins, J. R., B. Langford, Furneaux, KL, D. E. Heard, A. Karunaharan, Hewitt, CN, D.E. Heard (7612856), P.S. Monks (5522858), Monks, P. S., Pugh, TAM, Monks, PS, Monks, P.S., Hewitt, C.N., Jones, CE, Moller, S, L. K. Whalley, C. E. Jones, Heard, DE, A. Karunaharan (7603760), Pugh, Thomas, B. Langford (7604885)   +74 more
core   +6 more sources

The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP): Overview and description of models, simulations and climate diagnostics [PDF]

, 2013
The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) consists of a series of time slice experiments targeting the long-term changes in atmospheric composition between 1850 and 2100, with the goal of documenting composition changes
Lamarque, J. F., Rumbold, S, Sudo, K., Faluvegi, G., Nagashima, T, Shindell, Drew T., Young, Paul, MacKenzie, Ian A., Lee, Y, Voulgarakis, A., Eyring, V., Schulz, Michael, Cameron-Smith, Philip, Josse, B, Dalsoren, Stig B, Stevenson, D. S., Doherty, R. M., Ghan, S, Strode, Sarah, Bergmann, D., Folberth, G., Righi, M, Horowitz, L. W., Szopa, Sophie, Collins, William J., Naik, Vaishali, Zeng, Guang, Cionni, I, Plummer, David A, Skeie, R   +29 more
core   +6 more sources

Preindustrial to present-day changes in tropospheric hydroxyl radical and methane lifetime from the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) [PDF]

, 2013
We have analysed time-slice simulations from 17 global models, participating in the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP), to explore changes in present-day (2000) hydroxyl radical (OH) concentration and methane (CH4 ...
Rumbold, S, Sudo, K., Faluvegi, G., Nagashima, T, Shindell, Drew T., Young, Paul, MacKenzie, Ian A., Fiore, Arlene M., Voulgarakis, A., Eyring, V., Cameron-Smith, Philip, Lamarque, Jean-Francois, Lin, M, Prather, Michael J., Dalsoren, Stig B, Josse, B, Stevenson, D. S., Bergmann, Daniel, Doherty, R. M., Strode, Sarah, Folberth, G., Righi, M, Horowitz, L. W., Szopa, Sophie, Naik, Vaishali, Collins, William J., Lee, Yunha H, Zeng, Guang, van Noije, T. P. C., Cionni, I, Plummer, David A, Skeie, R   +31 more
core   +3 more sources

Nighttime atmospheric chemistry of iodine [PDF]

Atmospheric Chemistry and Physics, 2016
Little attention has so far been paid to the nighttime atmospheric chemistry of iodine species. Current atmospheric models predict a buildup of HOI and I2 during the night that leads to a spike of IO at sunrise, which is not observed by measurements ...
A. Saiz-Lopez, J. M. C. Plane, C. A. Cuevas, A. S. Mahajan, J.-F. Lamarque, D. E. Kinnison   +5 more
doaj   +1 more source

A consistent molecular hydrogen isotope chemistry scheme based on an independent bond approximation [PDF]

, 2009
The isotopic composition of molecular hydrogen (H₂) produced by photochemical oxidation of methane (CH₄) and Volatile Organic Compounds (VOCs) is a key quantity in the global isotope budget of (H<sub>2 ...
Sub Atmospheric physics and chemistry, M. C. Krol, G. Pieterse, T. Röckmann, Krol, M.C., Pieterse, G., Afd Marine and Atmospheric Research, Marine and Atmospheric Research, Röckmann, T.   +8 more
core   +3 more sources

Modeling the Unimolecular Decay Dynamics of the Fluorinated Criegee Intermediate, CF₃CHOO

Photochem, 2023
When volatile alkenes are emitted into the atmosphere, they are rapidly removed by oxidizing agents such as hydroxyl radicals and ozone. The latter reaction is termed ozonolysis and is an important source of Criegee intermediates (CIs), i.e., carbonyl ...
Lily M. Guidry, Courtney A. Poirier, Jordyn M. Ratliff, Ernest Antwi, Barbara Marchetti, Tolga N. V. Karsili   +5 more
doaj   +1 more source

Inverse modeling of European CH4 emissions: sensitivity to the observational network [PDF]

, 2009
Inverse modeling is widely employed to provide “top-down” emission estimates using atmospheric measurements. Here, we analyze the dependence of derived CH4 emissions on the sampling frequency and density of the observational surface network, using the ...
Bergamaschi, P., Villani, M.G., Sub Atmospheric physics and chemistry, Krol, M., Krol, M.C., Dep Natuurkunde, Dentener, F., Villani, M. G., Marine and Atmospheric Research, Meirink, J.F.   +9 more
core   +2 more sources

Optimizing global CO emission estimates using a four-dimensional variational data assimilation system and surface network observations [PDF]

, 2011
We apply a four-dimensional variational (4D-VAR) data assimilation system to optimize carbon monoxide (CO) emissions for 2003 and 2004 and to reduce the uncertainty of emission estimates from individual sources using the chemistry transport model TM5 ...
KROL M., Bergamaschi, P., T. Röckmann, Marine and Atmospheric Research, Werf, G.R., van der, VAN DER WERF G. R., ABEN Ilse, van der Werf, G.R.; id_orcid, M. C. Krol, Novelli, P.C., J. F. Meirink, Krol, M.C., Dep Natuurkunde, P. C. Novelli, ROECKMANN Thomas, Rockmann, T., I. Aben, Aben, I., BERGAMASCHI Peter, van der Werf, G.R., Meirink, J.F., NOVELLI P.C., Sub Atmospheric physics and chemistry, Hooghiemstra, P.B., P. Bergamaschi, HOOGHIEMSTRA P.B., P. B. Hooghiemstra, G. R. van der Werf, MEIRINK Jan Fokke, Werf, G.R. van der   +29 more
core   +4 more sources

Atmospherically Relevant Chemistry and Aerosol box model – ARCA box (version 1.2) [PDF]

Geoscientific Model Development, 2022
We introduce the Atmospherically Relevant Chemistry and Aerosol box model ARCA box (v.1.2.2). It is a zero-dimensional process model with a focus on atmospheric chemistry and submicron aerosol processes, including cluster formation.
P. Clusius, C. Xavier, L. Pichelstorfer, P. Zhou, T. Olenius, P. Roldin, M. Boy, M. Boy   +7 more
doaj   +2 more sources