The aerosol-climate model ECHAM5-HAM

Abstract. The aerosol-climate modelling system ECHAM5-HAM is introduced. It is based on a flexible microphysical approach and, as the number of externally imposed parameters is minimised, allows the application in a wide range of climate regimes. ECHAM5-HAM predicts the evolution of an ensemble of microphysically interacting internally- and externally-mixed aerosol populations as well as their size-distribution and composition. The size-distribution is represented by a superposition of log-normal modes. In the current setup, the major global aerosol compounds sulfate (SU), black carbon (BC), particulate organic matter (POM), sea salt (SS), and mineral dust (DU) are included. The simulated global annual mean…

• NA
  National Aeronautics and Space Administration
• UO
  University of Miami
• IM
  International Max Planck Research School for Environmental, Cellular and Molecular Microbiology
• DK
  Deutsches Klimarechenzentrum
• GS
  Goddard Space Flight Center