netcdf files/d092493/etccdi-e3smv2-csdi/v2.FV1.historical_0141.eam.h1.CSDI.1850-2014.nc {
  dimensions:
    lat = 192;
    lon = 288;
    year = 166;
  variables:
    float CSDI(year=166, lat=192, lon=288);
      :_FillValue = NaNf; // float
      :cell_methods = "tasmin: time: minimum";
      :history = "tasmin: \ntasmin_per: \n[2026-03-17 15:17:18] csdi_6: COLD_SPELL_DURATION_INDEX(tasmin=TREFHTMN, tasmin_per=per, window=6, freq=\'YS\', resample_before_rl=True, bootstrap=False, op=\'<\') with options check_missing=any - xclim version: 0.57.0";
      :standard_name = "cold_spell_duration_index";
      :long_name = "Total number of days constituting events of at least 6 consecutive days where the daily minimum temperature is below the {unknown}th percentile";
      :description = "Annual number of days with at least 6 consecutive days where the daily minimum temperature is below the {unknown}th percentile. a {unknown} day(s) window, centred on each calendar day in the {unknown} period, is used to compute the {unknown}th percentile(s).";
      :dtype = "timedelta64[ns]";
      :units = "days";

    double lat(lat=192);
      :_FillValue = NaN; // double
      :long_name = "Latitude of Grid Cell Centers";
      :standard_name = "latitude";
      :units = "degrees_north";
      :axis = "Y";
      :valid_min = -90.0; // double
      :valid_max = 90.0; // double
      :bounds = "lat_bnds";
      :_ChunkSizes = 192U; // uint

    double lon(lon=288);
      :_FillValue = NaN; // double
      :long_name = "Longitude of Grid Cell Centers";
      :standard_name = "longitude";
      :units = "degrees_east";
      :axis = "X";
      :valid_min = 0.0; // double
      :valid_max = 360.0; // double
      :bounds = "lon_bnds";
      :_ChunkSizes = 288U; // uint

    long year(year=166);

  // global attributes:
  :units = "days";
  :long_name = "Duration of spells >6 days with nights below calendar 10th Percentile, Cold Spell";
  :cell_methods = "time: minimum";
  :climatology_bounds = "1981-01-01; 2010-12-31";
  :history = "2026-03-17 14:06:11.571470";
  :Conventions = "CF-1.7";
  :title = "Extreme Temperature Indices";
  :institution = "NSF NCAR CGD";
  :comment = "Percentiles calculated from 1981-2010 climatological baseline per Zhang et al. 2009 10.1002/joc.1738";
  :source = "E3SMv2 atm daily";
  :references = "Danabasoglu et al. 2020 10.1029/2019MS001916; Rodgers et al. 2021 10.5194/esd-12-1393-2021";
}