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REM_Calgrid

REM_Calgrid. Andreas Kerschbaumer. CTM REM_Calgrid. ONE-WAY NESTED MODEL CHAIN for Regional Scale (Europe, Germany) Urban Scale (Agglomeration area) TRANSPORT IN THE LOWER TROPOSPHERE PHOTOCHEMICAL TRANSFORMATIONS INORGANIC AND ORGANIC AEROSOL FORMATION

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REM_Calgrid

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  1. REM_Calgrid Andreas Kerschbaumer

  2. CTM REM_Calgrid • ONE-WAY NESTED MODEL CHAIN for • Regional Scale (Europe, Germany) • Urban Scale (Agglomeration area) • TRANSPORT IN THE LOWER TROPOSPHERE • PHOTOCHEMICAL TRANSFORMATIONS • INORGANIC AND ORGANIC AEROSOL FORMATION • DRY AND WET REMOVAL PROCESSES • LONG TERM APPLICATIONS A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  3. CTM REM_Calgrid Nest 1: Germany 16x14 km² Europe 30x30 km² • Nesting • capability Nest 2: Berlin-Brandenburg: 4x4 km²Nest 3: Berlin 1x1 km² A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  4. CTM REM_Calgrid • Generalized horizontal coordinate systems • Dynamic and fixed multi-layer vertical mesh • CBM4 including Carter‘s 1-Product Isoprene scheme and (simple ) SO2 oxidation to SO4 • No aqueous-phase (cloud) chemistry • equilibrium inorganic aerosol module ISORROPIA • Equilibrium organic aerosol module SORGAM • Deposition Module DEPAC • Diagnostic Meteorology (optimum interpolation) • Emissions data interface for long term applications (On the fly calculations of hourly anthropogenic and biogenic emissions, scenario options) A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  5. CTM REM_Calgrid • PM10 Simulation in REM_Calgrid • Coarse (2.5 – 10 µm) and fine (< 2,5µm) fraction • Primary Aerosol – directly emitted: • elemental carbon (EC), • Organic carbon (OM) (fraction of PM10-emissions) • Rest (mainly coarse minerals) (wind-blown dust, re-suspension) • Secondary Aerosol – chemical transformation: • inorganic Aerosols (SO42-, NO3-, NH4+, Cl-, Na+) • organic Aerosols (SOA) A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  6. CTM REM_Calgrid • Vertical Coordinate A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  7. CTM REM_Calgrid • Landuse data-base based on • Corine with some extra-information about • Tree species • BIOGENIC EMISSIONS. A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  8. CTM REM_Calgrid • Loosmore und Hunt [2000]: • All PM is assumed to be PM 2,5 • Claiborn et al [1998],Gillette und Passi [1988] • Dependence on humidity on surface: rain-parameterised A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  9. CTM REM_Calgrid • MODELL SET-UP for POMI: • Adaptation of boundary conditions • Adaptation of Meteorology • Adaptation of Emissions • Horizontal Grid: lat-lon-coordinates • Zooming Region over Po-Valley area (0.5/8)°x(0.5/8)° (ca 4x4 km) • Zooming Region over Milan (0.5/16)° x (0.25/16)° (ca.2x2km) • Vertical Structure: dynamic layers dependent on mixing height A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  10. CTM REM_Calgrid • MODELL SET-UP for POMI: • Interpolation from lat-lon grids to UTM Grids • Delivered layer: first vertical RCG layer representative for surface concentrations. • Some work already done within CITY-DELTA-Project: • Topography • Landuse • Emission routines • MM5-Meteorology-routines A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

  11. CTM REM_Calgrid • Good luck and successful collaboration!!!! A. Kerschbaumer, 07.03.2008 Ispra, JRC POMI

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