netcdf C6_4860251_1_10230063122910332939 {
dimensions:
lat = 192 ;
nbnd = 2 ;
lon = 288 ;
lev = 70 ;
time = UNLIMITED ; // (1980 currently)
variables:
float ch4(time, lev, lat, lon) ;
ch4:_FillValue = 1.e+20f ;
ch4:cell_measures = "area: areacella" ;
ch4:cell_methods = "area: time: mean" ;
ch4:comment = "Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y." ;
ch4:coordinates = "time lev lat lon" ;
ch4:description = "Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y." ;
ch4:frequency = "mon" ;
ch4:id = "ch4" ;
ch4:long_name = "Mole Fraction of CH4" ;
ch4:mipTable = "AERmon" ;
ch4:missing_value = 1.e+20 ;
ch4:out_name = "ch4" ;
ch4:prov = "AERmon ((isd.003))" ;
ch4:realm = "aerosol" ;
ch4:standard_name = "mole_fraction_of_methane_in_air" ;
ch4:time = "time" ;
ch4:time_label = "time-mean" ;
ch4:time_title = "Temporal mean" ;
ch4:title = "Mole Fraction of CH4" ;
ch4:type = "real" ;
ch4:units = "mol mol-1" ;
ch4:variable_id = "ch4" ;
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 = "noleap" ;
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 = "CMIP" ;
:branch_method = "standard" ;
:branch_time_in_child = 674885. ;
:branch_time_in_parent = 20075. ;
:case_id = "4" ;
:cesm_casename = "b.e21.BWHIST.f09_g17.CMIP6-historical-WACCM.001" ;
:contact = "" ;
:creation_date = "2019-03-12T03:24:44Z" ;
:data_specs_version = "01.00.29" ;
:experiment = "all-forcing simulation of the recent past" ;
:experiment_id = "historical" ;
:external_variables = "areacella" ;
:forcing_index = 1LL ;
:frequency = "mon" ;
:further_info_url = "https://furtherinfo.es-doc.org/CMIP6.NCAR.CESM2-WACCM.historical.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_activity_id = "CMIP" ;
:parent_experiment_id = "piControl" ;
:parent_mip_era = "CMIP6" ;
:parent_source_id = "CESM2-WACCM" ;
: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 = "aerosol" ;
:source = "CESM2 (2017): atmosphere: CAM6 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 70 levels; top level 4.5e-6 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; 70 levels; top level 4.5e-6 mb); aerosol: MAM4 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 70 levels; top level 4.5e-6 mb); atmosChem: WACCM (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 70 levels; top level 4.5e-6 mb; landIce: CISM2.1; ocnBgchem: MARBL (320x384 longitude/latitude; 60 levels; top grid cell 0-10 m)" ;
:source_id = "CESM2-WACCM" ;
:source_type = "AOGCM BGC CHEM AER" ;
:sub_experiment = "none" ;
:sub_experiment_id = "none" ;
:table_id = "AERmon" ;
:tracking_id = "hdl:21.14100/98429004-994e-4256-aab3-250c7447a132" ;
:variable_id = "ch4" ;
:variant_info = "CMIP6 CESM2 hindcast (1850-2014) with high-top atmosphere (WACCM6) with interactive chemistry (TSMLT1), interactive land (CLM5), coupled ocean (POP2) with biogeochemistry (MARBL), interactive sea ice (CICE5.1), and non-evolving land ice (CISM2.1)" ;
:variant_label = "r1i1p1f1" ;
}