منابع مشابه
The aerosol-climate model ECHAM5-HAM
The aerosol-climate model ECHAM5-HAM P. Stier, J. Feichter, S. Kinne, S. Kloster, E. Vignati, J. Wilson, L. Ganzeveld, I. Tegen, M. Werner, Y. Balkanski, M. Schulz, and O. Boucher Max Planck Institute for Meteorology, Hamburg, Germany Institute for the Environment and Sustainability, European Commission Joint Research Centre, Ispra, Italy Max Planck Institute for Chemistry, Mainz, Germany Max P...
متن کاملEmission-Induced Nonlinearities in the Global Aerosol System: Results from the ECHAM5-HAM Aerosol-Climate Model
In a series of simulations with the global ECHAM5-HAM aerosol-climate model, the response to changes in anthropogenic emissions is analyzed. Traditionally, additivity is assumed in the assessment of the aerosol climate impact, as the underlying bulk aerosol models are largely constrained to linearity. The microphysical aerosol module HAM establishes degrees of freedom for nonlinear responses of...
متن کاملAerosol activation and cloud processing in the global aerosol-climate model ECHAM5-HAM
A parameterization for cloud processing is presented that calculates activation of aerosol particles to cloud drops, cloud drop size, and pH-dependent aqueous phase sulfur chemistry. The parameterization is implemented in the global aerosol-climate model ECHAM5-HAM. The cloud processing parameterization uses updraft speed, temperature, and aerosol size and chemical parameters simulated by ECHAM...
متن کاملCloud microphysics and aerosol indirect effects in the global climate model ECHAM5-HAM
The double-moment cloud microphysics scheme from ECHAM4 that predicts both the mass mixing ratios and number concentrations of cloud droplets and ice crystals has been coupled to the size-resolved aerosol scheme ECHAM5HAM. ECHAM5-HAM predicts the aerosol mass, number concentrations and mixing state. The simulated liquid, ice and total water content and the cloud droplet and ice crystal number c...
متن کاملAn improvement on the dust emission scheme in the global aerosol-climate model ECHAM5-HAM
Formulation of the dust emission scheme in the global aerosol-climate modeling system ECHAM5-HAM has been improved. Modifications on the surface aerodynamic roughness length, soil moisture and East-Asian soil properties are included in the parameterization, which result in a large impact on the threshold wind friction velocity for aeolian erosion and thus influence the simulated dust emission a...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2005
ISSN: 1680-7324
DOI: 10.5194/acp-5-1125-2005