Articles | Volume 4, issue 2
Geosci. Model Dev., 4, 419–433, 2011
Geosci. Model Dev., 4, 419–433, 2011

Model description paper 10 May 2011

Model description paper | 10 May 2011

PREP-CHEM-SRC – 1.0: a preprocessor of trace gas and aerosol emission fields for regional and global atmospheric chemistry models

S. R. Freitas1, K. M. Longo2, M. F. Alonso1, M. Pirre3, V. Marecal4, G. Grell5, R. Stockler1, R. F. Mello1, and M. Sánchez Gácita1 S. R. Freitas et al.
  • 1Center for Weather Forecasting and Climate Studies, INPE, Cachoeira Paulista, Brazil
  • 2Earth System Science Center, INPE, São José dos Campos, Brazil
  • 3Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, CNRS-Université d'Orléans, Orléans, France
  • 4Centre National de Recherches Météorologique/Groupe d'étude de l'Atmosphère Météorologique, Météo-France and CNRS, Toulouse, France
  • 5Cooperative Institute for Research in Environmental Sciences (CIRES) and NOAA Earth Systems Research Laboratory (ESRL), USA

Abstract. The preprocessor PREP-CHEM-SRC presented in the paper is a comprehensive tool aiming at preparing emission fields of trace gases and aerosols for use in atmospheric-chemistry transport models. The considered emissions are from the most recent databases of urban/industrial, biogenic, biomass burning, volcanic, biofuel use and burning from agricultural waste sources. For biomass burning, emissions can be also estimated directly from satellite fire detections using a fire emission model included in the tool. The preprocessor provides emission fields interpolated onto the transport model grid. Several map projections can be chosen. The inclusion of these emissions in transport models is also presented. The preprocessor is coded using Fortran90 and C and is driven by a namelist allowing the user to choose the type of emissions and the databases.