HDF5 file, superblock version 2
group /
	attribute Conventions = "CF-1.8"
	attribute datasets_included = "NIC, autoDMI, S1"
	attribute date = "20240112"
	attribute date_created = "2026-02-16T11:46:57Z"
	attribute hemisphere = "N"
	attribute ice_type_codes = "1=YI (Young Ice), 2=FYI (First-Year Ice), 3=SYI (Second-Year Ice), 4=MYI (Multi-Year Ice), -77=No Data"
	attribute projection = "+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0 +ellps=WGS84 +units=m +no_defs"
	attribute resolution_m = 25000
	attribute summary = "Multi-source sea ice type classification product gridded on 25 km EASE2 grid.Contains dominant ice type and MYI concentration where datasets agree,plus dominant ice types, their concentration and the MYI concentration of the single datasets.AMSR brightness temperatures and ERA5 variables are added."
	attribute title = "Round Robin Data Package for Sea Ice Types"
dataset /ASIMIR_myic_E: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "Multi-Year Ice Concentration (E) based on the ASIMIR algorithm"
dataset /ASIMIR_myic_M: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "Multi-Year Ice Concentration (M) based on the ASIMIR algorithm"
dataset /ASIMIR_myic_M_dc: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute grid_mapping = "crs"
	attribute long_name = "ASIMIR_myic_M with iterative drift correction"
dataset /ASIMIR_var_myic_E: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "Variance of Multi-Year Ice Concentration (E) based on the ASIMIR algorithm"
dataset /ASIMIR_var_myic_M: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "Variance of Multi-Year Ice Concentration (M) based on the ASIMIR algorithm"
dataset /ECICE_myic_confidence_tp_ORIG_E: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "Confidence level of MYI classification based on the ECICE algorithm using original tiepoints"
dataset /ECICE_myic_confidence_tp_ORIG_M: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "Confidence level of MYI classification based on the ECICE algorithm using original tiepoints"
dataset /ECICE_myic_confidence_tp_RRDP_E: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "Confidence level of MYI classification based on the ECICE algorithm using RRDP tiepoints"
dataset /ECICE_myic_confidence_tp_RRDP_M: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "Confidence level of MYI classification based on the ECICE algorithm using RRDP tiepoints"
dataset /ECICE_myic_tp_ORIG_E: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "MYI concentration based on the ECICE algorithm using original tiepoints"
dataset /ECICE_myic_tp_ORIG_M: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "MYI concentration based on the ECICE algorithm using original tiepoints"
dataset /ECICE_myic_tp_ORIG_M_dc: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute grid_mapping = "crs"
	attribute long_name = "ECICE_myic_tp_ORIG_M with iterative drift correction"
dataset /ECICE_myic_tp_RRDP_E: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "MYI concentration based on the ECICE algorithm using RRDP tiepoints"
dataset /ECICE_myic_tp_RRDP_M: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "MYI concentration based on the ECICE algorithm using RRDP tiepoints"
dataset /ECICE_myic_tp_RRDP_M_dc: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute grid_mapping = "crs"
	attribute long_name = "ECICE_myic_tp_RRDP_M with iterative drift correction"
dataset /OSISAF_sic: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area:mean where sea"
	attribute grid_mapping = "crs"
	attribute long_name = "Total sea ice concentration from EUMETSAT OSI SAF"
	attribute osisaf_file = "https://thredds.met.no/thredds/dodsC/metusers/steinare/osi438-l4/2024/01/ice_conc_nh_ease2-250_icdr-v3p0-amsr_202401121200.nc"
	attribute source = "osisaf-v3-amsr-icdr"
	attribute standard_name = "sea_ice_area_fraction"
dataset /crs: int32, shape ()
	attribute _FillValue = -77
	attribute crs_wkt = "+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0 +ellps=WGS84 +units=m +no_defs"
	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
	attribute spatial_ref = "+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0 +ellps=WGS84 +units=m +no_defs"
dataset /icetype_matches: int16, shape (1, 240, 240)
	attribute _FillValue = -77
	attribute flag_meanings = "young_ice first_year_ice second_year_ice multi_year_ice"
	attribute flag_values = 1, 2, 3, 4
	attribute grid_mapping = "crs"
	attribute long_name = "Dominant ice type where all datasets agree on ice type and its concentration >=80%"
	attribute units = "1"
	attribute valid_range = 1, 4
dataset /myi_concentration_matches: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute grid_mapping = "crs"
	attribute long_name = "Mean multi-year ice concentration if all datasets agree within +-20%"
	attribute units = "1"
	attribute valid_max = 1.0
	attribute valid_min = 0.0
dataset /nasaTeam_myic_E: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "MYI fraction based on the Nasa Team algorithm"
dataset /nasaTeam_myic_M: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "MYI fraction based on the Nasa Team algorithm"
dataset /origECICE_myic_regridded: float32, shape (1, 240, 240)
	attribute _FillValue = nan
	attribute cell_methods = "area: mean where sea_ice"
	attribute grid_mapping = "crs"
	attribute long_name = "MYI concentration based on the original ECICE output, regridded to RRDP grid"
dataset /time: float64, shape (1)
	attribute _FillValue = nan
	attribute axis = "T"
	attribute calendar = "proleptic_gregorian"
	attribute long_name = "time"
	attribute standard_name = "time"
	attribute units = "days since 1970-01-01"
dataset /xc: float64, shape (240)
	attribute _FillValue = nan
	attribute axis = "X"
	attribute long_name = "x coordinate of projection"
	attribute standard_name = "projection_x_coordinate"
	attribute units = "m"
// xc: first -2987500.0, last 2987500.0, count 240
dataset /yc: float64, shape (240)
	attribute _FillValue = nan
	attribute axis = "Y"
	attribute long_name = "y coordinate of projection"
	attribute standard_name = "projection_y_coordinate"
	attribute units = "m"
// yc: first 2987500.0, last -2987500.0, count 240