Atmospheric CO<sub>2</sub> modeling at the regional scale: an intercomparison of 5 meso-scale atmospheric models

Adjoint modeling for atmospheric pollution process sensitivity at regional scale

[1] During the summer 1998, a strong pollution event was documented over Paris as part of the Etude et Simulation de la Qualité de l’air en Ile-de-France (ESQUIF) project (second intensive observation period (IOP2)). From 7 to 9 August 1998 the pollution event changes from a well-marked ozone plume issued from Paris to a more general pollution over the whole Ile-de-France region. Using a three-...

Study of the models of large-scale atmospheric circulation system model on intesify rainfall in Ardebil plain

Atmospheric circulation is important to determine the surface climate and environment, and affect regional climate and surface features. In this study, to quantify its effect, the classification system, developed by Lamb is applied to obtain circulation information for Ardabil, North West Province in Iran, on a daily basis, and is a method to classify synoptic weather for study area. For that p...

Inverse Modelling of Atmospheric Trace Substances on the Regional Scale with Lagrangian Models

Measurements can not only be used as stand-alone data or for model evaluation. If we trust the measured data and our models sufficiently well, we can use them to infer source properties. The method to do this is called inverse modelling; it is an optimisation technique. Sources (or source parameters) are adjusted so that the differences between model output and measurements are minimised. Inver...

Exploring an Ensemble-Based Approach to Atmospheric Climate Modeling and Testing at Scale

Accomplishments • Developed and demonstrated the utility of a short simulation ensemble-based testing framework • Demonstrated that running short simulation ensembles is more efficient than running a single long simulation • Demonstrated that aggressive optimizations can lead to simulations with a statistically distinct model state. • Averaged behavior of many single year runs of the atmosphere...

Large-scale atmospheric circulation patterns associated with the occurrence of severe storms Zab basin