HDF5 file, superblock version 0
group /
	attribute Conventions = "CF-1.6, Unidata Dataset Discovery v1.0, NOAA CDR v1.0, GDS v2.0"
	attribute NCO = "\"4.6.3\""
	attribute cdm_data_type = "Grid"
	attribute cdr_program = "NOAA Climate Data Record Program for satellites"
	attribute cdr_variable = "cdr_surface_temperature, cdr_surface_albedo, cdr_surface_downwelling_shortwave_flux, cdr_surface_downwelling_longwave_flux, cdr_surface_upwelling_shortwave_flux, cdr_surface_upwelling_longwave_flux, cdr_cloud_binary_mask, cdr_sea_ice_thickness, cdr_toa_net_downward_shortwave_flux, cdr_toa_outgoing_shortwave_flux, cdr_toa_outgoing_longwave_flux,surface_type, cloud_particle_phase, cloud_particle_radius, cloud_optical_depth, cloud_top_pressure, cloud_top_temperature, Cloud_type, surface_shortwave_cloud_radiative_forcing, surface_longwave_cloud_radiative_forcing"
	attribute date_created = "2019-06-24"
	attribute geospatial_lat_max = "90.0"
	attribute geospatial_lat_min = "48.4"
	attribute geospatial_lat_units = "degrees_north"
	attribute geospatial_lon_max = "180.0"
	attribute geospatial_lon_min = "-180.0"
	attribute geospatial_lon_units = "degrees_east"
	attribute history = (text block)
| Sun Nov 10 01:25:16 2019: ncpdq -O -a time,rows,columns /cwdata/APPX/work_nh/temp.nc /cwdata/APPX/nh/1995/Polar-APP-X_v02r00_Nhem_1400_d19951130_c20190624_cw.nc
| Data files were obtained from NCEI at https://www.ncei.noaa.gov/data/avhrr-polar-pathfinder-extended/access/. For each data variable plus the latitude and longitude variables, the two dimensional x-y grid was rotated clockwise by 90 degrees, resulting in geographical orientation where the Greenwich Meridian runs parallel to the y (rows)-axis from the North Pole at the grid center to the middle of the x (columns)-axis at the bottom edge of the grid and -90 degree E meridian runs parallel to the x (columns)-axis from the North Pole at the grid center to the middle of the y (rows)-axis at the left edge of the grid. To coordinate variables (columns and rows) were added that correspond to the columns and rows dimensions. The coordinate variables have units of meters.
	attribute id = "Polar-APP-X_v02r00_Nhem_1400_d19951130_c20190624.nc"
	attribute institution = "Cooperative Institute for Meteorological Studies, University of Wisconsin at Madison"
	attribute keywords = "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION, EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > LONGWAVE RADIATION, EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > RADIATIVE FLUX, EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD DROPLET CONCENTRATION(SIZE), EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD OPTICAL DEPTH(THICKNESS), EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD DROPLET PHASE, EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD TOP PRESSURE, EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD TOP TEMPERATURE, EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD TYPE, EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD FRACTION, EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD RADIATIVE TRANSFER > CLOUD RADIATIVE FORCING, EARTH SCIENCE > CLIMATE INDICATORS > CRYOSPHERIC INDICATORS > ICE DEPTH(THICKNESS), EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE DEPTH(THICKNESS),EARTH SCIENCE > CRYOSPHERE > SNOW and ICE > ALBEDO, EARTH SCIENCE > CRYOSPHERE > SNOW and ICE > SNOW and ICE TEMPERATURE, EARTH SCIENCE > LAND SURFACE > LAND TEMPERATURE, EARTH SCIENCE > LAND SURFACE > LAND ALBEDO, EARTH SCIENCE > OCEANS > SEA ICE > ICE DEPTH(THICKNESS),EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW and ICE > ALBEDO, EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW and ICE > ICE DEPTH(THICKNESS), "
	attribute keywords_vocabulary = "NASA Global Change Master Directory (GCMD) Earth Science Keywords, Version 8"
	attribute license = "No restrictions on access or use"
	attribute metadata_link = "https://doi.org/10.25921/AE96-0E57"
	attribute nameing_authority = "gov.noaa.ncdc"
	attribute nco_openmp_thread_number = 1
	attribute platform = " NOAA polar orbiting satellite 14"
	attribute product_version = "V2.0"
	attribute sensor = "Advanced Very High Resolution Radiometer (AVHRR)/2"
	attribute source = "individual twice daily APP-x data"
	attribute spatial_resolution = "25 km"
	attribute standard_name_vocabulary = "CF Standard Name Table (v26, 08 November 2013)"
	attribute summary = "The Extended AVHRR Polar Pathfinder (APP-x) Version-2 thematic Climate Data Record (CDR) includes more than 33 years of surface temperature, surface albedo, surface and the Top Of the Atmosphere (TOA) shortwave and longwave radiative fluxes, cloud properties (amount, phase, particle size, optical depth,top pressure and temperature, surface and TOA radiative effect), and ice thickness and age. The APP-x CDR has twice daily data at local solar times of 14 and 04(02) for the Arctic(Antarctic) at a spatial resolution of 25 km for both poles."
	attribute time_coverage_end = "1995-12-01T05:00:00Z"
	attribute time_coverage_start = "1995-11-29T23:00:00Z"
	attribute title = "Extended AVHRR Polar Pathfinder Fundamental Climate Data Record (APPx CDR)"
dataset /Time: float32, shape (0)
dataset /cdr_cloud_binary_mask: int16, shape (1, 361, 361)
	attribute _FillValue = 199
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "referenceInformation"
	attribute flag_meanings = "clear cloudy"
	attribute flag_values = 0, 1
	attribute grid_mapping = "crs"
	attribute ioos_category = "Identifier"
	attribute long_name = "NOAA CDR of cloud mask"
	attribute units = "1"
	attribute valid_range = 0, 1
dataset /cdr_sea_ice_thickness: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Ice Distribution"
	attribute long_name = "NOAA CDR of sea ice thickness"
	attribute standard_name = "sea_ice_thickness"
	attribute units = "m"
	attribute valid_range = 0.0, 10.0
dataset /cdr_surface_albedo: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "NOAA CDR of surface broadband albedo"
	attribute standard_name = "surface_albedo"
	attribute units = "1"
	attribute valid_range = 0.0, 1.0
dataset /cdr_surface_downwelling_longwave_flux: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "NOAA CDR of surface downwelling longwave radiative flux"
	attribute standard_name = "surface_downwelling_longwave_flux"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /cdr_surface_downwelling_shortwave_flux: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "NOAA CDR of surface downwelling shortwave radiative flux"
	attribute standard_name = "surface_downwelling_shortwave_flux"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /cdr_surface_temperature: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Temperature"
	attribute long_name = "NOAA CDR of surface skin temperature"
	attribute standard_name = "surface_temperature"
	attribute units = "K"
	attribute valid_range = 0.0, 1000.0
dataset /cdr_surface_upwelling_longwave_flux: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "NOAA CDR of surface upwelling longwave radiative flux"
	attribute standard_name = "surface_upwelling_longwave_flux"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /cdr_surface_upwelling_shortwave_flux: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "NOAA CDR of surface upwelling shortwave radiative flux"
	attribute standard_name = "surface_upwelling_shortwave_flux"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /cdr_toa_net_downward_shortwave_flux: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "NOAA CDR of TOA net downward shortwave radiative flux"
	attribute standard_name = "toa_net_downward_shortwave_flux"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /cdr_toa_outgoing_longwave_flux: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "NOAA CDR of TOA outgoing longwave radiative flux"
	attribute standard_name = "toa_outgoing_longwave_flux"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /cdr_toa_outgoing_shortwave_flux: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "NOAA CDR of TOA outgoing shortwave radiative flux"
	attribute standard_name = "toa_outgoing_shortwave_flux"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /cloud_optical_depth: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "cloud optical depth"
	attribute units = "1"
	attribute valid_range = 0.0, 300.0
dataset /cloud_particle_phase: int16, shape (1, 361, 361)
	attribute _FillValue = 199
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute flag_meanings = "liquid solid"
	attribute flag_values = 0, 1
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "cloud particle phase"
	attribute units = "1"
	attribute valid_range = 0, 1
dataset /cloud_particle_radius: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "cloud particle radius"
	attribute units = "microns"
	attribute valid_range = 0.0, 300.0
dataset /cloud_top_pressure: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "cloud top pressure"
	attribute units = "hPa"
	attribute valid_range = 0.0, 1000.0
dataset /cloud_top_temperature: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "cloud top temperature"
	attribute units = "K"
	attribute valid_range = 0.0, 1000.0
dataset /cloud_type: int16, shape (1, 361, 361)
	attribute _FillValue = 199
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "cloud type"
	attribute meanings = "Cloud type value has two digits, i.e. XX, the ones place X (the first X from left), representing cloud type from CASPR algorithm, and the tenth place X representing cloud type from CLAVR algorithm. For CLAVR algorithm the tenth place X meanings: 0=clear or partly cloudy,1=fogs,2=liquid,3=mixed phase,4=glaciated,5=cirrus6=cirrus over lower,7=unused,8=unused,9=missing. For CASPR algorithm the ones place X meanings: 0=clear,1=cirrus,2=low stratus,3=warm,4=cold,5=water6=ice,7=Polar stratospheric cloud (PSC),8=unknown,9=missing."
	attribute units = "1"
	attribute valid_range = 0, 99
dataset /columns: float32, shape (361)
	attribute _CoordinateAxisType = "GeoX"
	attribute axis = "X"
	attribute comment = "columns values are the upper left of the grid cells"
	attribute ioos_category = "Location"
	attribute long_name = "Projection Grid X Coordinates"
	attribute standard_name = "projection_x_coordinate"
	attribute units = "m"
// columns: first -4524688.5, last 4499620.5, count 361
dataset /crs: float32, shape ()
	attribute comment = "Data is stored in 25 km EASE-Grid. Refer to the link in the references"
	attribute earth_radius = 6371228.0
	attribute false_easting = 0.0
	attribute false_northing = 0.0
	attribute grid_mapping_name = "lambert_azimuthal_equal_area"
	attribute latitude_of_projection_origin = 90.0
	attribute longitude_of_projection_origin = 0.0
dataset /latitude: float32, shape (361, 361)
	attribute ioos_category = "Location"
	attribute long_name = "latitude of EASE Grid 25km resolution in the polar regionsArctic (361,361), Antarctic (321,321)"
	attribute standard_name = "latitude"
	attribute units = "degrees_north"
dataset /longitude: float32, shape (361, 361)
	attribute ioos_category = "Location"
	attribute long_name = "longitude of EASE Grid 25km resolution in the polar regions, Arctic (361,361), Antarctic (321,321)"
	attribute standard_name = "longitude"
	attribute units = "degrees_east"
dataset /rows: float32, shape (361)
	attribute _CoordinateAxisType = "GeoY"
	attribute axis = "Y"
	attribute comment = "columns values are the upper left of the grid cells"
	attribute ioos_category = "Location"
	attribute long_name = "Projection Grid Y Coordinates"
	attribute standard_name = "projection_y_coordinate"
	attribute units = "m"
// rows: first -4499620.5, last 4524688.5, count 361
dataset /surface_longwave_cloud_radiative_forcing: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "surface longwave cloud radiative forcing"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /surface_shortwave_cloud_radiative_forcing: float32, shape (1, 361, 361)
	attribute _FillValue = 9999.0
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "surface shortwave cloud radiative forcing"
	attribute units = "W m-2"
	attribute valid_range = 0.0, 1800.0
dataset /surface_type: int16, shape (1, 361, 361)
	attribute _FillValue = 255
	attribute coordinates = "longitude latitude time"
	attribute coverage_content_type = "physicalMeasurement"
	attribute flag_meanings = "not_land ice snow land"
	attribute flag_values = 0, 3, 4, 254
	attribute grid_mapping = "crs"
	attribute ioos_category = "Meteorology"
	attribute long_name = "surface type"
	attribute units = "1"
	attribute valid_range = 0, 254
dataset /time: float64, shape (1)
	attribute _CoordinateAxisType = "Time"
	attribute axis = "T"
	attribute long_name = "Time"
	attribute standard_name = "time"
	attribute units = "seconds since 1970-01-01T00:00:00Z"