.. _c2_icon_ngc2009_irad33:

Cycle 2 ICON 5km (ngc2009_irad33)
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Location on disc:
    :file:`/work/bm1235/b380952/experiments/ngc2009_OXF_10day_irad33/`

Location of intake catalogs:
    * :file:`/work/bm1235/b380952/experiments/ngc2009_OXF_10day_irad33/irad33.json`
    * :file:`/work/bm1235/b380952/experiments/ngc2009_OXF_10day_irad33/irad33_1deg.json`
    * :file:`/work/bm1235/b380952/experiments/ngc2009_OXF_10day_irad33/irad33_01deg.json`

Location of grid files:
    * horizontal grid: :file:`/pool/data/ICON/grids/public/mpim/0015/icon_grid_0015_R02B09_G.nc` 
    * vertical grid: :file:`/work/bm1235/b380952/experiments/ngc2009_OXF_10day_irad33/run_20200822T000000-20200831T235920/ngc2009_OXF_10day_irad33_atm_vgrid_ml.nc`

Simulation period:
    * spin-up of 10 days from 22 Aug 2020 to 01 Sep 2020

Resolution:
    * horizontal grid spacing: 5km (R02B09) comprising 20971520 grid columns 
    * number of vertical levels: 90 
    * model time step: 40 sec

Comments:
    * no ocean model
    * land model JSBACH
    * plume model MACv2-SP with some modifications 

Plume model MACv2-SP:
    * original version described in publication from `Stevens et al. <https://gmd.copernicus.org/articles/10/433/2017/>`_ 
    * coupling with graupel and radiation schemes:
        * dNovrN from plume model used to enhance background CDNC in graupel scheme (background CDNC of 80 cm-3)
        * dNovrN from plume model also used to enhance CDNC profile in radiation scheme (background CDNC of 80 cm-3 at surface)
        * change in CDNC in graupel scheme solely impacts autoconversion rate  
    * modifications:
        * relationship of AOD and CDNC updated as described in `Herbert et al. <https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021JD034615>`_
        * biomass burning plumes (S America, C S Africa, Maritime Continent) adjusted so that anthropogenic component is 75 percent of total AOD
        * seasonal cycle removed and replaced with constant weights taken from mean during September
        * annual weights extended beyond 2017 and held at 2017 values

Contact: 
     * `Philipp Weiss (UOXF) <philipp.weiss@physics.ox.ac.uk>`__, `Ross Herbert (UOXF) <ross.herbert@physics.ox.ac.uk>`__, and `Philip Stier (UOXF) <philip.stier@physics.ox.ac.uk>`__