Box model
Quantifying atmospheric transport, chemistry, and mixing using a new trajectory-box model and a global atmospheric-chemistry GCM
... (see Sect. 4.2), aerosol chemistry as described in Kerkweg et al. (2007) was switched off. To facilitate the application case study (Sect. 5), heterogeneous reactions were neglected in the present box model ...
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Simulation of atmospheric mercury depletion events (AMDEs) during polar springtime using the MECCA box model
... Reactive bromine species can be generated from sea salt aerosols and in the course of sea ice formation, when con- centrated salt solutions (brine) are separated from ice. When an open lead of sea water begins to freeze ...
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Submarine groundwater discharge to a small estuary estimated from radon and salinity measurements and a box model
... A box model was used as an aid to understand both the rates and the locations of discharge in the vicinity of Salt ...The model achieves a reasonable fit to both the salinity and radon data assuming ...
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Simulation of atmospheric mercury depletion events (AMDEs) during polar springtime using the MECCA box model
... the long-range transport of mercury. They contain chemical reactions of Hg species related to SO 2 and chlorine but they do not consider bromine chemistry. Pan and Carmichael (2005) studied mercury atmospheric mechanisms ...
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The atmospheric chemistry box model CAABA/MECCA-3.0gmdd
... 3-D model (e.g., J ¨ockel et al., 2006). The CAABA/MECCA box model, however, has almost exclusively been used for simulations focusing on the lower ...
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Rates and regimes of photochemical ozone production over Central East China in June 2006: a box model analysis using comprehensive measurements of ozone precursors
... and J values. The net production rate of ozone was estimated to be 6.4 ppb h −1 as a 6-h average (09:00–15:00 CST), sug- gesting 58±37 ppb of ozone is produced in one day. Thus the daytime buildup of ozone recorded at ...
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A box model study on photochemical interactions between VOCs and reactive halogen species in the marine boundary layer
... the model runs conducted in the present work, Run 1b yield a result with the most activated bromine chemistry by neglecting the oceanic emission of CH 3 ...
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Modelling the budget of middle atmospheric water vapour isotopes
... chemistry box model demonstrates that a significant number of chemical reac- tions with diverse gases cause considerable fractionation of all three stable isotope ratios D/H, 17 O/ 16 O, and 18 O/ 16 O in ...
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On the transition between heterogeneous and homogeneous freezing
... show that it is possible to determine a critical concentration of such ice nuclei, below of which homogeneous nucleation dominates, while heterogeneous nucleation takes over the dominant role at higher ice nucleus ...
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Modelling trends in OH radical concentrations using generalized additive models
... at Writtle in Essex was surrounded by crop-based agriculture (sunflowers and grain). During the highly instrumented campaign, there were a large number of measurements made of long-lived and radical species as well as ...
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The Framework for 0-D Atmospheric Modeling (F0AM) v3.1
... to model re- sults is not always ...0-D box model to get “the right answer” except in cases where the model setup is a fair representation of the true ...a box model is a ...
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Radical chemistry at night: comparisons between observed and modelled HO<sub>x</sub>, NO<sub>3</sub> and N<sub>2</sub>O<sub>5</sub> during the RONOCO project
... tailed box model simulations, thus enables evaluation of our understanding of chemical processes occurring in the atmo- sphere, making the short-lived species ideal model targets (Heard and Pilling, ...
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Particle backscatter and relative humidity measured across cirrus clouds and comparison with state-of-the-art cirrus modelling
... The model simulates homogeneous ice nucleation and growth/evaporation including vapour diffusion and surface mass accommodation (while particle number densities are sufficiently small to render coagulation ...
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Exploring the use of a column model for the characterization of microphysical processes in warm rain: results from a homogeneous rainshaft model
... umn model of the stochastic equation describing the evo- lution of raindrop spectra through a rainshaft has been de- ...single box model in which the spatial homogeneity of the DSD is assumed, and ...
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McGill Wetland Model: evaluation of a peatland carbon simulator developed for global assessments
... raise of water to the moss (Hayward and Clymo 1982). Once this occurs the moss is kept moist only by atmospheric inputs and when there are extended periods with no rain we have observed the moss becomes very desiccated. ...
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Airflow and Thermal Behavior within Peaches Packaging Box Using Computational Fluid Dynamics - A Preliminary Study
... CFD model to predict airflow patterns and temperature profiles in ventilated packaging systems during the forced-air cooling of Peaches stored in laboratory ...
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Control and chaos for vibro-impact and non-ideal oscillators
... In the paper, we discuss dynamics of two kinds of mechanical systems. Initially, we consider vibro-impact systems which have many implemen- tations in applied mechanics, ranging from drilling machinery and metal cutting ...
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Purpose – Our study examines the influence that employee diversity has
... Furthermore, all the studied aspects of HRM practices in our model showed positive effects on organisational performance. In particular, these include practices related to ‘quality in the workplace’ such as ...
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APPLYING BLACK-BOX TESTING TO MODEL TRANSFORMATIONS IN THE MODEL DRIVEN ARCHITECTURE CONTEXT
... ATL-based model transformations were conducted so that the groups of selected test cases were ...the model transformation is assured by the ATL language compilation ...
5
Global atmospheric budget of acetaldehyde: 3-D model analysis and constraints from in-situ and satellite observations
... the model underes- timates acetaldehyde levels in urban outflow, suggesting a missing source in polluted ...the model, and based on present understanding are not consistent with concurrent measurements of ...
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