NetCDF Header

CAM-chem simulation of the 2020 lockdown

netcdf file:///data/a4b27fa9-45f1-487f-9ba9-8e4e248de052/f.e22.FCnudged.f09_f09_mg17.daily_control.001.cam.h3.2020-05-13-03600.nc-39e7fa0c-eb0a-40a4-b7a6-b7ccb304d634 {
  dimensions:
    lat = 192;
    lon = 288;
    time = UNLIMITED;   // (24 currently)
    nbnd = 2;
    chars = 8;
    lev = 32;
    ilev = 33;
  variables:
    double lat(lat=192);
      :_FillValue = -900.0; // double
      :long_name = "latitude";
      :units = "degrees_north";

    double lon(lon=288);
      :_FillValue = -900.0; // double
      :long_name = "longitude";
      :units = "degrees_east";

    double gw(lat=192);
      :_FillValue = -900.0; // double
      :long_name = "latitude weights";

    double lev(lev=32);
      :long_name = "hybrid level at midpoints (1000*(A+B))";
      :units = "hPa";
      :positive = "down";
      :standard_name = "atmosphere_hybrid_sigma_pressure_coordinate";
      :formula_terms = "a: hyam b: hybm p0: P0 ps: PS";

    double hyam(lev=32);
      :long_name = "hybrid A coefficient at layer midpoints";

    double hybm(lev=32);
      :long_name = "hybrid B coefficient at layer midpoints";

    double P0;
      :long_name = "reference pressure";
      :units = "Pa";

    double ilev(ilev=33);
      :long_name = "hybrid level at interfaces (1000*(A+B))";
      :units = "hPa";
      :positive = "down";
      :standard_name = "atmosphere_hybrid_sigma_pressure_coordinate";
      :formula_terms = "a: hyai b: hybi p0: P0 ps: PS";

    double hyai(ilev=33);
      :long_name = "hybrid A coefficient at layer interfaces";

    double hybi(ilev=33);
      :long_name = "hybrid B coefficient at layer interfaces";

    double time(time=24);
      :long_name = "time";
      :units = "days since 2001-01-01 00:00:00";
      :calendar = "gregorian";
      :bounds = "time_bnds";

    int date(time=24);
      :long_name = "current date (YYYYMMDD)";

    int datesec(time=24);
      :long_name = "current seconds of current date";

    double time_bnds(time=24, nbnd=2);
      :long_name = "time interval endpoints";

    char date_written(time=24, chars=8);

    char time_written(time=24, chars=8);

    int ndbase;
      :long_name = "base day";

    int nsbase;
      :long_name = "seconds of base day";

    int nbdate;
      :long_name = "base date (YYYYMMDD)";

    int nbsec;
      :long_name = "seconds of base date";

    int mdt;
      :long_name = "timestep";
      :units = "s";

    int ndcur(time=24);
      :long_name = "current day (from base day)";

    int nscur(time=24);
      :long_name = "current seconds of current day";

    double co2vmr(time=24);
      :long_name = "co2 volume mixing ratio";

    double ch4vmr(time=24);
      :long_name = "ch4 volume mixing ratio";

    double n2ovmr(time=24);
      :long_name = "n2o volume mixing ratio";

    double f11vmr(time=24);
      :long_name = "f11 volume mixing ratio";

    double f12vmr(time=24);
      :long_name = "f12 volume mixing ratio";

    double sol_tsi(time=24);
      :long_name = "total solar irradiance";
      :units = "W/m2";

    int nsteph(time=24);
      :long_name = "current timestep";

    float AODVIS(time=24, lat=192, lon=288);
      :_FillValue = 1.0E36f; // float
      :missing_value = 1.0E36f; // float
      :long_name = "Aerosol optical depth 550 nm, day only";

    float CO_SRF(time=24, lat=192, lon=288);
      :units = "mol/mol";
      :long_name = "CO in bottom layer";

    float NO2_SRF(time=24, lat=192, lon=288);
      :units = "mol/mol";
      :long_name = "NO2 in bottom layer";

    float NOY_SRF(time=24, lat=192, lon=288);
      :units = "mol/mol";
      :long_name = "surface noy volume mixing ratio";

    float NO_SRF(time=24, lat=192, lon=288);
      :units = "mol/mol";
      :long_name = "NO in bottom layer";

    float O3_SRF(time=24, lat=192, lon=288);
      :units = "mol/mol";
      :long_name = "O3 in bottom layer";

    float PHIS(time=24, lat=192, lon=288);
      :units = "m2/s2";
      :long_name = "Surface geopotential";

    float PM25_SRF(time=24, lat=192, lon=288);
      :units = "kg/m3";
      :long_name = "surface PM2.5 concentration";

    float PS(time=24, lat=192, lon=288);
      :units = "Pa";
      :long_name = "Surface pressure";

    float SO2_SRF(time=24, lat=192, lon=288);
      :units = "mol/mol";
      :long_name = "SO2 in bottom layer";

    float TS(time=24, lat=192, lon=288);
      :units = "K";
      :long_name = "Surface temperature (radiative)";

  // global attributes:
  :Conventions = "CF-1.0";
  :source = "CAM";
  :case = "f.e22.FCnudged.f09_f09_mg17.daily_control.001";
  :logname = "gaubert";
  :host = "cheyenne6.ib0.ch";
  :initial_file = "/glade/p/cesmdata/cseg/inputdata/atm/cam/inic/fv/f.e22.FC2010climo.f09_f09_mg17.cam6_2_022.001.cam.i.0016-01-01-00000_c200610.nc";
  :topography_file = "/glade/p/cesmdata/cseg/inputdata/atm/cam/topo/fv_0.9x1.25_nc3000_Nsw042_Nrs008_Co060_Fi001_ZR_sgh30_24km_GRNL_c170103.nc";
  :model_doi_url = "https://doi.org/10.5065/D67H1H0V";
  :time_period_freq = "hour_1";
}