netcdf CQMKpcDADhur111v111029_1_6497308900942206115 { dimensions: time = UNLIMITED ; // (1825 currently) plev = 8 ; lat = 96 ; lon = 192 ; bnds = 2 ; variables: double time(time) ; time:bounds = "time_bnds" ; time:units = "days since 0001-01-01 00:00:00" ; time:calendar = "noleap" ; time:axis = "T" ; time:long_name = "time" ; time:standard_name = "time" ; double time_bnds(time, bnds) ; double plev(plev) ; plev:units = "Pa" ; plev:axis = "Z" ; plev:positive = "down" ; plev:long_name = "pressure" ; plev:standard_name = "air_pressure" ; 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 hur(time, plev, lat, lon) ; hur:standard_name = "relative_humidity" ; hur:long_name = "Relative Humidity" ; hur:comment = "The relative humidity was computed on model sigma levels and then vertically interpolated to prescribed pressure levels using linear interpolation ie. the variable is assumed to vary linearly with pressure. Data at the 1000 hPa level were extrapolated (with the aforementioned method) using data at the (approx.) 978 and 995 hPa model levels; all other data were interpolated. The missing value was assigned to locations where the pressure surface is underground. CMIP5_table_comment: This is the relative humidity with respect to liquid water for T> 0 C, and with respect to ice for T<0 C." ; hur:units = "%" ; hur:original_name = "q01_q18" ; hur:history = "Daily relative humidity was computed as follows: Rel.H = q /qs * 100.0% where q is the specific humidity (model output) and qs is the saturation specific humidity. The saturation specific humidity was computed as follows: qs = 0.622*es/p where es is the saturation vapour pressure and p is the pressure (both in hPa). The saturation vapour pressure was computed as follows: if the temperature is above 0C, es = 6.112*exp(17.62*t/(243.12 + t)), otherwise es = 6.112*exp(22.46*t/(272.62 + t)), where t is temperature in degrees C and es is in hPa. The relative humidity was capped at 105.0% if t > 0C. For t <= 0C, the relative humidity was capped at 200% to allow for supersaturation with respect to ice. Altered by CMOR: replaced missing value flag (-7.77778e+06) with standard missing value (1e+20)" ; hur:cell_methods = "time: mean" ; hur:cell_measures = "area: areacella" ; hur:missing_value = 1.e+20f ; hur:_FillValue = 1.e+20f ; hur:associated_files = "baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_atmos_fx_CSIRO-Mk3-6-0_piControl_r0i0p0.nc areacella: areacella_fx_CSIRO-Mk3-6-0_piControl_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 = "piControl" ; :source = "CSIRO-Mk3-6-0 2010 atmosphere: AGCM v7.3.4 (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 = "N/A (Pre-industrial conditions with all forcings fixed at 1850 levels)" ; :parent_experiment_id = "N/A" ; :parent_experiment_rip = "N/A" ; :branch_time = 0. ; :contact = "Project leaders: Stephen Jeffrey (
: ocean & sea-ice)" ; :history = "Minor changes were made to the model physics between years 1-160. Data for years 1-160 were subsequently discarded, and data for years 161-660 were remapped to years 1-500.Daily relative humidity was computed by averaging relative humidity computed at 0Z, 6Z, 12Z and 18Z, using the procedure outlined in the variable history. The relative humidity was capped at the levels specified in the variable history. With those thresholds, approximately 0.005% of data values are capped at 105% (t > 0C), and 0.01% of data values are capped at 200% (t <= 0C) (based on a 2-year sample of the historic experiment, Expt. 3.2). 2012-05-30T04:52:34Z CMOR rewrote data to comply with CF standards and CMIP5 requirements." ; :comment = "Model output post-processed by the CSIRO-QCCCE CMIP5 Data post-processor for the IPCC Fifth Assessment." ; :references = "a) Rotstayn, L., Collier, M., Dix, M., Feng, Y., Gordon, H., O\\\'Farrell, S., Smith, I. and Syktus, J. 2010. Improved simulation of Australian climate and ENSO-related climate variability in a GCM with an interactive aerosol treatment. Int. J. Climatology, vol 30(7), pp1067-1088, DOI 10.1002/joc.1952 b) Please refer to online documentation at: http://cmip-pcmdi.llnl.gov/cmip5/" ; :initialization_method = 1 ; :physics_version = 1 ; :tracking_id = "b36059b1-60e0-40a1-ad63-c08b998dcf2a" ; :version_number = "v20111029" ; :product = "output" ; :experiment = "pre-industrial control" ; :frequency = "day" ; :creation_date = "2012-05-30T04:52:34Z" ; :Conventions = "CF-1.4" ; :project_id = "CMIP5" ; :table_id = "Table day (27 April 2011) b920f4b91a34cfaa0b9737bf20085940" ; :title = "CSIRO-Mk3-6-0 model output prepared for CMIP5 pre-industrial control" ; :parent_experiment = "N/A" ; :modeling_realm = "atmos" ; :realization = 1 ; :cmor_version = "2.6.0" ; }