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The sensitivity of Western European NO2 columns to interannual variability of meteorology and emissions: A model - GOME study

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Author: Savage, N.H. · Pyle, J.A. · Braesicke, P. · Wittrock, F. · Richter, A. · Nüß, H. · Burrows, J.P. · Schultz, M.G. · Pulles, M.P.J. · Bolscher, M. van het
Type:article
Date:2008
Institution: TNO Bouw en Ondergrond
Source:Atmospheric Science Letters, 4, 9, 182-188
Identifier: 241246
Keywords: Environment · GOME · Interannual variability · Model · NO2 · annual variation · atmospheric pollution · concentration (composition) · GOME · nitrogen dioxide · sensitivity analysis · three-dimensional modeling · troposphere · wind velocity · Eurasia · Europe · Western Europe

Abstract

Interannual variability (IAV) in tropospheric species concentrations can be driven by variability in emissions, chemistry, transport and UV radiation. In a 3D CTM study we have found good agreement between the IAV of NO2 columns observed by the GOME satellite instrument and model simulations over Western Europe from 1996 to 2000. We find that meteorological variability is an important factor during this period. Averaged 10 m wind speeds from the European Centre for Medium-Range Weather Forecasts (ECMWF) operational analysis are a good proxy for the overall meteorology driving the IAV during the studied period of 1996-2000. Copyright © 2008 Royal Meteorological Society.