netcdf C6_4620834_1_15434437625055846152 {
dimensions:
lat = 192 ;
nbnd = 2 ;
lon = 288 ;
lev = 32 ;
time = UNLIMITED ; // (600 currently)
variables:
float cdnc(time, lev, lat, lon) ;
cdnc:_FillValue = 1.e+20f ;
cdnc:cell_measures = "area: areacella" ;
cdnc:cell_methods = "area: time: mean" ;
cdnc:comment = "chunits(NUMLIQ,units=\"m-3\")" ;
cdnc:coordinates = "time lev lat lon" ;
cdnc:description = "Cloud Droplet Number Concentration in liquid water clouds." ;
cdnc:frequency = "mon" ;
cdnc:id = "cdnc" ;
cdnc:long_name = "Cloud Liquid Droplet Number Concentration" ;
cdnc:mipTable = "AERmon" ;
cdnc:missing_value = 1.e+20 ;
cdnc:out_name = "cdnc" ;
cdnc:prov = "AERmon ((isd.003))" ;
cdnc:realm = "aerosol" ;
cdnc:standard_name = "number_concentration_of_cloud_liquid_water_particles_in_air" ;
cdnc:time = "time" ;
cdnc:time_label = "time-mean" ;
cdnc:time_title = "Temporal mean" ;
cdnc:title = "Cloud Liquid Droplet Number Concentration" ;
cdnc:type = "real" ;
cdnc:units = "m-3" ;
cdnc:variable_id = "cdnc" ;
float ps(time, lat, lon) ;
ps:long_name = "surface_air_pressure" ;
ps:units = "Pa" ;
float p0 ;
p0:long_name = "vertical coordinate formula term: reference pressure" ;
p0:units = "Pa" ;
double a(lev) ;
a:bounds = "a_bnds" ;
a:long_name = "vertical coordinate formula term: a(k)" ;
double b(lev) ;
b:bounds = "b_bnds" ;
b:long_name = "vertical coordinate formula term: b(k)" ;
double lat(lat) ;
lat:axis = "Y" ;
lat:bounds = "lat_bnds" ;
lat:standard_name = "latitude" ;
lat:title = "Latitude" ;
lat:type = "double" ;
lat:units = "degrees_north" ;
lat:valid_max = 90. ;
lat:valid_min = -90. ;
double lev(lev) ;
lev:axis = "Z" ;
lev:bounds = "lev_bnds" ;
lev:positive = "up" ;
lev:standard_name = "alevel" ;
lev:title = "atmospheric model level" ;
lev:type = "double" ;
lev:units = "hPa" ;
double lon(lon) ;
lon:axis = "X" ;
lon:bounds = "lon_bnds" ;
lon:standard_name = "longitude" ;
lon:title = "Longitude" ;
lon:type = "double" ;
lon:units = "degrees_east" ;
lon:valid_max = 360. ;
lon:valid_min = 0. ;
double time(time) ;
time:axis = "T" ;
time:bounds = "time_bnds" ;
time:standard_name = "time" ;
time:title = "time" ;
time:type = "double" ;
time:units = "days since 0001-01-01 00:00:00" ;
time:calendar = "365_day" ;
double time_bnds(time, nbnd) ;
time_bnds:calendar = "noleap" ;
time_bnds:units = "days since 0001-01-01 00:00:00" ;
double b_bnds(lev, nbnd) ;
b_bnds:long_name = "vertical coordinate formula term: b(k+1/2)" ;
double lat_bnds(lat, nbnd) ;
lat_bnds:units = "degrees_north" ;
double lon_bnds(lon, nbnd) ;
lon_bnds:units = "degrees_east" ;
double lev_bnds(lev, nbnd) ;
lev_bnds:formula = "p = a*p0 + b*ps" ;
lev_bnds:formula_terms = "p0: p0 a: a_bnds b: b_bnds ps: ps" ;
lev_bnds:standard_name = "atmosphere_hybrid_sigma_pressure_coordinate" ;
lev_bnds:units = "hPa" ;
double a_bnds(lev, nbnd) ;
a_bnds:long_name = "vertical coordinate formula term: a(k+1/2)" ;
// global attributes:
:Conventions = "CF-1.7 CMIP-6.2" ;
:activity_id = "DAMIP" ;
:branch_time_in_child = 674885. ;
:case_id = "1545" ;
:cesm_casename = "b.e21.B1850cmip6.f09_g17.DAMIP-hist-ghg.001" ;
:contact = "" ;
:creation_date = "2019-06-22T09:52:42Z" ;
:data_specs_version = "01.00.30" ;
:experiment = "Historical greenhouse-gas only simulations resemble the historical simulations but instead are forced by well-mixed greenhouse gas changes only. Models with interactive chemistry schemes should either turn off the chemistry or use a preindustrial climatology of stratospheric and tropospheric ozone in their radiation schemes. This will ensure that ozone is fixed in all these simulations, and simulated responses in models with and without coupled chemistry are comparable. Report what sets of emissions and boundary conditions are used." ;
:experiment_id = "hist-GHG" ;
:external_variables = "areacella" ;
:forcing_index = 1LL ;
:frequency = "mon" ;
:further_info_url = "https://furtherinfo.es-doc.org/CMIP6.NCAR.CESM2.hist-GHG.none.r1i1p1f1" ;
:grid = "native 0.9x1.25 finite volume grid (192x288 latxlon)" ;
:grid_label = "gn" ;
:initialization_index = 1LL ;
:institution = "National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, 1850 Table Mesa Drive, Boulder, CO 80305, USA" ;
:institution_id = "NCAR" ;
:license = "CMIP6 model data produced by <The National Center for Atmospheric Research> is licensed under a Creative Commons Attribution-[]ShareAlike 4.0 International License (https://creativecommons.org/licenses/). Consult https://pcmdi.llnl.gov/CMIP6/TermsOfUse for terms of use governing CMIP6 output, including citation requirements and proper acknowledgment. Further information about this data, including some limitations, can be found via the further_info_url (recorded as a global attribute in this file)[]. The data producers and data providers make no warranty, either express or implied, including, but not limited to, warranties of merchantability and fitness for a particular purpose. All liabilities arising from the supply of the information (including any liability arising in negligence) are excluded to the fullest extent permitted by law." ;
:mip_era = "CMIP6" ;
:model_doi_url = "https://doi.org/10.5065/D67H1H0V" ;
:nominal_resolution = "100 km" ;
:parent_mip_era = "CMIP6" ;
:parent_source_id = "CESM2" ;
:parent_time_units = "days since 0001-01-01 00:00:00" ;
:physics_index = 1LL ;
:product = "model-output" ;
:realization_index = 1LL ;
:realm = "aerosol" ;
:source = "CESM2 (2017): atmosphere: CAM6 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 32 levels; top level 2.25 mb); ocean: POP2 (320x384 longitude/latitude; 60 levels; top grid cell 0-10 m); sea_ice: CICE5.1 (same grid as ocean); land: CLM5 0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 32 levels; top level 2.25 mb); aerosol: MAM4 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 32 levels; top level 2.25 mb); atmoschem: MAM4 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 32 levels; top level 2.25 mb); landIce: CISM2.1; ocnBgchem: MARBL (320x384 longitude/latitude; 60 levels; top grid cell 0-10 m)" ;
:source_id = "CESM2" ;
:source_type = "AOGCM BGC AER" ;
:sub_experiment = "none" ;
:sub_experiment_id = "none" ;
:table_id = "AERmon" ;
:tracking_id = "hdl:21.14100/c3eacd3a-5ef9-4923-9f17-8d643d284ae4" ;
:variable_id = "cdnc" ;
:variant_info = "B1850 forcings + evolving GHG forcing" ;
:variant_label = "r1i1p1f1" ;
:parent_variant_label = "r1i1p1f1" ;
:parent_experiment_id = "piControl" ;
:parent_activity_id = "CMIP" ;
:branch_time_in_parent = 306600. ;
:branch_method = "standard" ;
}