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Inverse modelling

Atmospheric transport and chemistry of trace gases in LMDz5B: evaluation and implications for inverse modelling

Atmospheric transport and chemistry of trace gases in LMDz5B: evaluation and implications for inverse modelling

... of inverse estimates of regional emissions by inverse modelling is mostly dependent on: (a) the num- ber, accuracy and spatio-temporal coverage of observations constraining the inversion, (b) the ...

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Inverse Modelling for Estimation of Average Grain Size and Material Constants - An Optimization Approach

Inverse Modelling for Estimation of Average Grain Size and Material Constants - An Optimization Approach

... an inverse modeling technique in the grain size estimation process has been demon- ...The inverse modelling technique has been ap- plied to equation (1) with the situation in which α, β and Q values ...

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Inverse modelling of national and European CH4 emissions using the atmospheric zoom model TM5

Inverse modelling of national and European CH<sub>4</sub> emissions using the atmospheric zoom model TM5

... Average a posteriori emissions and their ranges from scenar- ios S1–S9 are compiled in Table 1 (together with both a pri- ori and UNFCCC emissions). For comparison of a posteri- ori emissions with UNFCCC values it is ...

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Monitoring vertical wheel–rail contact forces based on freight wagon inverse modelling

Monitoring vertical wheel–rail contact forces based on freight wagon inverse modelling

... two-dimensional inverse wagon model has been developed. To verify the inverse modelling, a detailed VAMPIRE wagon model has been used for the simulations on two cases of track rail top surface and ...

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Atmospheric transport and chemistry of trace gases in LMDz5B: evaluation and implications for inverse modelling

Atmospheric transport and chemistry of trace gases in LMDz5B: evaluation and implications for inverse modelling

... low convection over land. The combination of the deep convection scheme (Tiedtke, 1989) and vertical diffusion parameterisations (Laval et al., 1981) used in previous version of LMDz does not produce satisfactory results ...

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The continental source of glyoxal estimated by the synergistic use of spaceborne measurements and inverse modelling

The continental source of glyoxal estimated by the synergistic use of spaceborne measurements and inverse modelling

... More precisely, when ignoring the SOA formation sink on aerosols, the inferred global glyoxal and UVOC flux amount to 95 Tg/yr and 45 Tg/yr, respectively, and the global glyoxal lifetime[r] ...

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Validation of the Swiss methane emission inventory by atmospheric observations and inverse modelling

Validation of the Swiss methane emission inventory by atmospheric observations and inverse modelling

... Swiss CH 4 emissions for this set of sensitivity inversions were larger than in the base inversion (Table 4). 3 ± 11 Gg yr − 1 in the low release case) were ob- tained when only the site[r] ...

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Inverse modelling of national and European CH4 emissions using the atmospheric zoom model TM5

Inverse modelling of national and European CH<sub>4</sub> emissions using the atmospheric zoom model TM5

... In general, all European sites are characterized by considerable synoptic variability, i.e. variations due to varying origin of air masses, with typical time scales of a few days. Basing the inversion on daily mean ...

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Validation of the Swiss methane emission inventory by atmospheric observations and inverse modelling

Validation of the Swiss methane emission inventory by atmospheric observations and inverse modelling

... close to the surface (3 m above ground). A more detailed analysis of how the observa- tions of this site are locally influenced and how they can be compared to observations from the close-by tall tower in BEO is given in ...

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Assessing intraspecific variation in effective dispersal along an altitudinal gradient: a test in two Mediterranean high-mountain plants.

Assessing intraspecific variation in effective dispersal along an altitudinal gradient: a test in two Mediterranean high-mountain plants.

... an inverse modelling approach to measure the net reproductive rate and effective dispersal kernel parameters along an altitudinal gradient in a threatened Mediterranean high- mountain pasture community in ...

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Mat. Res.  vol.15 número6

Mat. Res. vol.15 número6

... isotropic. The crystallite size of ZnO decreased rapidly to ~11 nm within 30 minutes milling and then decreased slowly with increasing milling time. Crystallite size α-Fe 2 O 3 phase was reduced from ~75 nm to ~13 nm ...

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Application of a virtual watershed in academic education

Application of a virtual watershed in academic education

... The change from artificial to real weather conditions is a major step on the way to deal with a more complex hydrolog- ical system (Fig. 3a). It clearly addresses users with earlier experience in hydrological ...

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A robust method for inverse transport modelling of atmospheric emissions using blind outlier detection

A robust method for inverse transport modelling of atmospheric emissions using blind outlier detection

... these existing methods assume Gaussian additive errors, making them extremely sen- sitive to outlier measurements. We first show that the errors in real-world measurement datasets come from a heavy-tailed distribution, ...

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Deformable registration, dose remapping and summation for head and neck adaptative radiotherapy applications

Deformable registration, dose remapping and summation for head and neck adaptative radiotherapy applications

... the inverse transforms compared to physical reality is important however is beyond the scope of this ...between inverse transform methods were found not significant (table ...

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WildAniMAL - MAL Interactors Model Animator

WildAniMAL - MAL Interactors Model Animator

... Because of limitations on the SMV input language, when compared to MAL interactors, the compilation step mentioned above introduces a series of auxiliary variables in the model. This means that the trace is not at the ...

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The effect of training image and secondary data integration with multiple-point geostatistics in groundwater modelling

The effect of training image and secondary data integration with multiple-point geostatistics in groundwater modelling

... Figure 2 shows the regional geology of the study area as described by Scharling et al. (2009) based on hydrostrati- graphic modelling. This regional-scale model was primar- ily intended to establish the Miocene ...

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Determination of Volumetric Losses in Hydrodynamic Pump Using Numerical Modelling

Determination of Volumetric Losses in Hydrodynamic Pump Using Numerical Modelling

... Comparison of results from the theory and numerical modelling shows that for the preliminary estimation of annular seal leakage a simple calculation based on empirical relations can be applied. However, if we want ...

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Retrieving global aerosol sources from satellites using inverse modeling

Retrieving global aerosol sources from satellites using inverse modeling

... The algorithm was implemented in a practical way with the GOCART aerosol transport model, retrieving global aerosol emissions at 2 ◦ ×2.5 ◦ horizontal resolution from the global distribution of aerosol optical thickness. ...

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A Hybrid Optimization Method for Solving Bayesian Inverse Problems under Uncertainty.

A Hybrid Optimization Method for Solving Bayesian Inverse Problems under Uncertainty.

... the inverse problem and quantify the difference frequency in order to increase the stability of this ...the inverse solution process, the solution time can be considerably ...

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An objective prior error quantification for regional atmospheric inverse applications

An objective prior error quantification for regional atmospheric inverse applications

... the otherwise ill-constrained inverse problem and to quanti- tatively characterise the magnitude and structure of the error between prior and “true” flux. We use surface fluxes derived from three biosphere models ...

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