netcdf C6CDNRCES1Cr111SIscogn90613_1_914262324844636400 {
dimensions:
ni = 320 ;
nj = 384 ;
d2 = 2 ;
nvertices = 4 ;
time = UNLIMITED ; // (588 currently)
variables:
float siconc(time, nj, ni) ;
siconc:_FillValue = 1.e+20f ;
siconc:cell_measures = "area: areacello" ;
siconc:cell_methods = "area: mean where sea time: mean" ;
siconc:comment = "aice" ;
siconc:coordinates = "time lat lon" ;
siconc:description = "Area fraction of grid cell covered by sea ice" ;
siconc:frequency = "mon" ;
siconc:id = "siconc" ;
siconc:long_name = "Sea-ice Area Percentage (Ocean Grid)" ;
siconc:mipTable = "SImon" ;
siconc:missing_value = 1.e+20 ;
siconc:out_name = "siconc" ;
siconc:prov = "SIMIP [seaicemon]" ;
siconc:realm = "seaIce" ;
siconc:standard_name = "sea_ice_area_fraction" ;
siconc:time = "time" ;
siconc:time_label = "time-mean" ;
siconc:time_title = "Temporal mean" ;
siconc:title = "Sea-ice Area Percentage (Ocean Grid)" ;
siconc:type = "real" ;
siconc:units = "%" ;
siconc:variable_id = "siconc" ;
double lat(nj, ni) ;
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 lon(nj, ni) ;
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. ;
int ni(ni) ;
ni:long_name = "cell index along second dimension" ;
ni:units = "1" ;
int nj(nj) ;
nj:long_name = "cell index along first dimension" ;
nj:units = "1" ;
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 = "noleap" ;
double time_bnds(time, d2) ;
float lat_bnds(nj, ni, nvertices) ;
lat_bnds:units = "degrees_north" ;
float lon_bnds(nj, ni, nvertices) ;
lon_bnds:units = "degrees_east" ;
// global attributes:
:Conventions = "CF-1.7 CMIP-6.2" ;
:activity_id = "CDRMIP" ;
:branch_method = "standard" ;
:branch_time_in_child = 0. ;
:branch_time_in_parent = 51100. ;
:case_id = "60" ;
:cesm_casename = "b.e21.B1PCT.f09_g17.CMIP6-1pctCO2-cdr.001" ;
:contact = "" ;
:creation_date = "2019-03-13T22:33:47Z" ;
:data_specs_version = "01.00.29" ;
:experiment = "1 percent per year decrease in CO2 from 4xCO2" ;
:experiment_id = "1pctCO2-cdr" ;
:external_variables = "areacello" ;
:forcing_index = 1LL ;
:frequency = "mon" ;
:further_info_url = "https://furtherinfo.es-doc.org/CMIP6.NCAR.CESM2.1pctCO2-cdr.none.r1i1p1f1" ;
:grid = "native gx1v7 displaced pole grid (384x320 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_activity_id = "CMIP" ;
:parent_experiment_id = "1pctCO2" ;
:parent_mip_era = "CMIP6" ;
:parent_source_id = "CESM2" ;
:parent_time_units = "days since 0001-01-01 00:00:00" ;
:parent_variant_label = "r1i1p1f1" ;
:physics_index = 1LL ;
:product = "model-output" ;
:realization_index = 1LL ;
:realm = "seaIce" ;
: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 = "SImon" ;
:tracking_id = "hdl:21.14100/7c98e8ac-6062-4bfd-97b9-2ea1bed586f5" ;
:variable_id = "siconc" ;
:variant_info = "1 percent per year decrease in CO2 (immediately after reaching 4xCO2 in the DECK 1pctCO2 simulation); then held constant at pre-industrial level for 60 years (part of the CDR-reversibility experiment). CO2 concentration prescribed" ;
:variant_label = "r1i1p1f1" ;
}