Attributes { level { String units "millibar"; Float32 actual_range 1.0, 1000.0; String long_name "Level"; String standard_name "air_pressure"; String positive "down"; String axis "Z"; String coordinate_defines "point"; } lat { String long_name "Latitude"; String short_name "lat"; String units "degrees_north"; Float64 actual_range 90.0, -90.0; String standard_name "latitude"; String axis "Y"; String coordinate_defines "point"; } lon { String long_name "Longitude"; String short_name "lon"; String units "degrees_east"; Float64 actual_range 0.0, 359.75; String standard_name "longitude"; String axis "X"; String coordinate_defines "point"; } time { String long_name "Time"; String units "hours since 1800-01-01 00:00:00"; String standard_name "time"; String axis "T"; String calendar "standard"; String coordinate_defines "start"; String cell_methods "time: mean"; String delta_t "0000-01-00 00:00:00"; String avg_period "0040-00-00 00:00:00"; String prev_avg_period "0000-01-00 00:00:00"; String climatology "climatology_bounds"; String climo_period "1981/01/01 - 2020/12/31"; Float64 actual_range -1.5769752E7, -1.5761736E7; Float64 ltm_range 1586616.0, 1936512.0; String interpreted_actual_range "0001/01/01 00:00:00 - 0001/12/01 00:00:00"; } climatology_bounds { String long_name "Climate Time Boundaries"; String units "hours since 1800-01-01 00:00:00"; } shum { Float32 missing_value -9.96921E36; String GridType "Cylindrical Equidistant Projection Grid"; String datum "wgs84"; String units "kg/kg"; String var_desc "Specific Humidity"; String standard_name "specific_humidity"; String dataset "ERA5"; String level_desc "Pressure Levels"; String statistic "Long Term Mean"; String parent_stat "Ensemble Mean"; Int32 number_of_significant_digits 7; Int32 ecmwf_local_table 128; Int32 ecmwf_parameter 133; String cell_methods "time: mean"; String long_name "Long Term Mean Monthly Average Specific Humidity on Pressure Levels"; Float32 actual_range 1.0029369E-6, 0.023902267; Int32 _ChunkSizes 1, 1, 721, 1440; } valid_yr_count { String long_name "count of non-missing values used in mean"; Int16 missing_value 32767; Float32 add_offset 0.0; Float32 scale_factor 1.0; } NC_GLOBAL { String Conventions "CF-1.6"; String title "ERA5 Reanalysis"; String comments "Obtained at NCAR and converted to PSD NetCDF format and attributes"; String standard_name_vocabulary "NetCDF Climate and Forecast (CF) Metadata Convention"; String license "These data can be used at PSD. Do not redistribute files outside of PSD w/o explicit ECMWF permision"; String creator_name "NOAA/ESRL PSD"; String spatial_resolution "0.25 degree"; String platform "Model"; String institution "NOAA ESRL Physical Sciences Division & CU/CIRES (325 Broadway R/PSD, Boulder, CO 80305)"; String version "5"; String contact "esrl.psd.data@noaa.gov"; String product "reanalysis"; String References "https://www.esrl.noaa.gov/psd/data/gridded/data.era5.html"; String citation "European Centre for Medium-Range Weather Forecasts. 2017 updated monthly. ERA5 Reanalysis. Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.5065/D6X34W69. Accessed Jan 2020. "; String netcdf_conversion "CISL RDA: Conversion from ECMWF GRIB1 data to netCDF4."; String rda_dataset "ds633.0"; String rda_dataset_url "https:/rda.ucar.edu/datasets/ds633.0/"; String rda_dataset_doi "DOI: 10.5065/BH6N-5N20"; String rda_dataset_group "ERA5 atmospheric surface analysis"; String grid_specification "0.25 degree x 0.25 degree from 90N to 90S and 0E to 359.75E (721 x 1440 Latitude/Longitude)"; String original_source "ECMWF: https://cds.climate.copernicus.eu, Copernicus Climate Data Store"; String source "NCAR, Boulder CO"; String creation_date "2020-02-07T02:38:04Z"; String history "Created 2021/11/12 by doMonthLTMNC4"; String NCO "netCDF Operators version 4.8.1 (Homepage = http://nco.sf.net, Code = http://github.com/nco/nco)"; String comment "Obtained at NCAR and converted to PSD NetCDF format and attributes 2000-2006 from the ERA5.1 dataset "; String not_missing_threshold_percent "minimum 2% values input to have non-missing output value"; String dataset_title "ERA5 Reanalyses at PSL"; } }