netcdf CQMKhnMERod550l311v1_1_282110550269248483 { dimensions: time = UNLIMITED ; // (1956 currently) lat = 96 ; lon = 192 ; bnds = 2 ; variables: double time(time) ; time:bounds = "time_bnds" ; time:units = "days since 1850-01-01 00:00:00" ; time:calendar = "noleap" ; time:axis = "T" ; time:long_name = "time" ; time:standard_name = "time" ; double time_bnds(time, bnds) ; double lat(lat) ; lat:bounds = "lat_bnds" ; lat:units = "degrees_north" ; lat:axis = "Y" ; lat:long_name = "latitude" ; lat:standard_name = "latitude" ; double lat_bnds(lat, bnds) ; double lon(lon) ; lon:bounds = "lon_bnds" ; lon:units = "degrees_east" ; lon:axis = "X" ; lon:long_name = "longitude" ; lon:standard_name = "longitude" ; double lon_bnds(lon, bnds) ; float od550lt1aer(time, lat, lon) ; od550lt1aer:standard_name = "atmosphere_optical_thickness_due_to_pm1_ambient_aerosol" ; od550lt1aer:long_name = "Ambient Fine Aerosol Optical Thickness at 550 nm" ; od550lt1aer:comment = "The raw model output has been divided by the fraction of time each pixel is in sun light. This is necessary because the calculation of optical depth is only performed at sunlit points in the model, and zero is returned at non-sunlit points. If the fraction of time in sun light is less than 0.1 in that month, the missing value is assigned, CMIP5_table_comment: od550 due to particles with wet diameter less than 1 um (\"\"ambient\"\" means \"\"wetted\"\"). When models do not include explicit size information, it can be assumed that all anthropogenic aerosols and natural secondary aerosols have diameter less than 1 um." ; od550lt1aer:units = "1" ; od550lt1aer:original_name = "tas" ; od550lt1aer:cell_methods = "time: mean" ; od550lt1aer:cell_measures = "area: areacella" ; od550lt1aer:history = "2011-07-19T06:52:41Z altered by CMOR: replaced missing value flag (-7.77778e+06) with standard missing value (1e+20)." ; od550lt1aer:missing_value = 1.e+20f ; od550lt1aer:_FillValue = 1.e+20f ; od550lt1aer:associated_files = "baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_aerosol_fx_CSIRO-Mk3-6-0_historicalNat_r0i0p0.nc areacella: areacella_fx_CSIRO-Mk3-6-0_historicalNat_r0i0p0.nc" ; // global attributes: :institution = "Australian Commonwealth Scientific and Industrial Research Organization (CSIRO) Marine and Atmospheric Research (Melbourne, Australia) in collaboration with the Queensland Climate Change Centre of Excellence (QCCCE) (Brisbane, Australia)" ; :institute_id = "CSIRO-QCCCE" ; :experiment_id = "historicalNat" ; :source = "CSIRO-Mk3-6-0 2010 atmosphere: AGCM v7.3.8 (T63 spectral, 1.875 degrees EW x approx. 1.875 degrees NS, 18 levels); ocean: GFDL MOM2.2 (1.875 degrees EW x approx. 0.9375 degrees NS, 31 levels)" ; :model_id = "CSIRO-Mk3-6-0" ; :forcing = "Nat" ; :parent_experiment_id = "piControl" ; :parent_experiment_rip = "r1i1p1" ; :branch_time = 37595. ; :contact = "Project leaders: Stephen Jeffrey (