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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL abstract String The daily analysis of sea ice concentration is obtained from operation satellite images of the polar regions. It is based on atmospherically corrected signal and a carefully selected sea ice concentration algorithm. This product is freely available from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI SAF).
attribute NC_GLOBAL activity_type String Space borne instrument
attribute NC_GLOBAL area String Southern Hemisphere
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL contact String osisaf-manager at
attribute NC_GLOBAL Conventions String CF-1.6, COARDS, ACDD-1.3
attribute NC_GLOBAL copyright_statement String Copyright 2023 EUMETSAT
attribute NC_GLOBAL creator_email String osisaf-manager at
attribute NC_GLOBAL creator_name String Osisaf Manager
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL defaultGraphQuery String ice_conc%5B%282020-09-04T12%3A00%3A00Z%29%5D%5B%285845.0%29%3A%28-5345.0%29%5D%5B%28-3845.0%29%3A%283745.0%29%5D%26.draw%3Dsurface%26.vars%3Dxc%257Cyc%257Cice_conc%26.colorBar%3DKT_ice
attribute NC_GLOBAL distribution_statement String Free
attribute NC_GLOBAL gcmd_keywords String Cryosphere > Sea Ice > Sea Ice Concentration\nOceans > Sea Ice > Sea Ice Concentration\nGeographic Region > Southern Hemisphere\nVertical Location > Sea Surface\nEUMETSAT/OSISAF > Satellite Application Facility on Ocean and Sea Ice, European Organisation for the Exploitation of Meteorological Satellites
attribute NC_GLOBAL history String 2023-03-22 creation
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String EUMETSAT OSI SAF
attribute NC_GLOBAL instrument_type String Multi-sensor analysis
attribute NC_GLOBAL keywords String agg, algorithm, algorithm_uncertainty, analysis, application, area, climate, conc, concentration, confidence, confidence_level, cryosphere, daily, data, day, distribution, earth, Earth Science > Cryosphere > Sea Ice > Ice Extent, Earth Science > Oceans > Sea Ice > Ice Extent, eumetsat, european, exploitation, extent, facility, filter, filtered, flag, fraction, hemisphere, ice, ice distribution, ice_conc, ice_conc_unfiltered, laboratory, level, masks, meteorological, meteorology, ocean, oceanographic, oceanography, oceans, organisation, osi, osisaf, point, pol, proudman, quality, remote sensing, retrieval, saf, satellite, satellites, science, sea, sea ice, sea ice concentration, sea_ice_area_fraction, sea_ice_area_fraction status_flag, smearing, smearing_uncertainty, southern, statistics, status, status_flag, tie, tie-point, time, total_uncertainty, uncertainty, unfiltered, used
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String This product is freely available from the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) Ocean and Sea Ice Satellite Application Facility (OSI SAF). The data may be used and redistributed for free but is not intended\nfor legal use, since it may contain inaccuracies. Neither the data\nContributor, ERD, NOAA, nor the United States Government, nor any\nof their employees or contractors, makes any warranty, express or\nimplied, including warranties of merchantability and fitness for a\nparticular purpose, or assumes any legal liability for the accuracy,\ncompleteness, or usefulness, of this information.
attribute NC_GLOBAL netcdf_version String 3.6.3
attribute NC_GLOBAL PI_name String Rasmus Tonboe
attribute NC_GLOBAL platform_name String Multi-sensor analysis
attribute NC_GLOBAL product_id String OSI-401
attribute NC_GLOBAL product_name String osi_saf_ice_conc
attribute NC_GLOBAL product_status String operational
attribute NC_GLOBAL product_version String 4.0
attribute NC_GLOBAL proj_crs_code String osisaf_ps_sh
attribute NC_GLOBAL proj_crs_code_description String The proj_crs_code attribute references a registered projection identifier (i.e. EPSG) when available. If the projection is not registered, non-standard then this attribute references a PolarWatch assigned internal identifier.
attribute NC_GLOBAL proj_false_easting String 0.0
attribute NC_GLOBAL proj_false_northing String 0.0
attribute NC_GLOBAL proj_grid_mapping_name String polar_stereographic
attribute NC_GLOBAL proj_latitude_of_projection_origin String -90.0
attribute NC_GLOBAL proj_pro4_string String +proj=stere +a=6378273 +b=6356889.44891 +lat_0=-90 +lat_ts=-70 +lon_0=0
attribute NC_GLOBAL proj_semi_major_axis String 6378273.0
attribute NC_GLOBAL proj_semi_minor_axis String 6356889.44891
attribute NC_GLOBAL proj_straight_vertical_logitude_from_pole String 0.0
attribute NC_GLOBAL proj_strandard_parallel String -70.0
attribute NC_GLOBAL project_name String EUMETSAT OSI SAF
attribute NC_GLOBAL references String Product User Manual for OSI SAF Global Sea Ice Concentration, \nRasmus Tonboe et al. (editor)\n v1.4, May 2017\n
attribute NC_GLOBAL software_version String 1.3
attribute NC_GLOBAL sourceUrl String (external link)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String The OSI SAF Sea Ice data are developed and produced by the Norwegian and Danish Meteorological Institutes as a part of the OSI SAF project for EUMETSAT. Ice concentration is computed from atmospherically corrected SSMIS brightness temperatures, using a combination of state-of-the-art algorithms. The product series is operational since 2005 (version OSI-401-b since 26/05/2016). This product is complementary to the AMSR-2 global sea ice concentration product (OSI-408). The daily analysis of sea ice concentration is obtained from operation satellite images of the polar regions. This product is freely available from the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) Ocean and Sea Ice Satellite Application Facility (OSI SAF).
attribute NC_GLOBAL testOutOfDate String now-4days
attribute NC_GLOBAL time_coverage_end String 2023-03-22T12:00:00Z
attribute NC_GLOBAL time_coverage_start String 2005-03-01T12:00:00Z
attribute NC_GLOBAL title String Sea Ice Concentration, OSI SAF EUMETSAT, Antarctic, Polar Stereographic, 10km, 2005-present
attribute NC_GLOBAL topiccategory String Oceans Climatology Meteorology Atmosphere
dimension time double nValues=6571, evenlySpaced=false, averageSpacing=1 day 0h 5m 29s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.1096784E9, 1.6794864E9
attribute time axis String T
attribute time calendar String standard
attribute time ioos_category String Time
attribute time long_name String reference time of product
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
dimension yc double nValues=830, evenlySpaced=true, averageSpacing=-10.0
attribute yc actual_range double -3945.0, 4345.0
attribute yc axis String Y
attribute yc ioos_category String Location
attribute yc long_name String y coordinate in polar stereo projection
attribute yc standard_name String projection_y_coordinate
attribute yc units String km
dimension xc double nValues=790, evenlySpaced=true, averageSpacing=10.0
attribute xc actual_range double -3945.0, 3945.0
attribute xc axis String X
attribute xc ioos_category String Location
attribute xc long_name String x coordinate in polar stereo projection
attribute xc standard_name String projection_x_coordinate
attribute xc units String km
variable ice_conc float time, yc, xc
attribute ice_conc _FillValue float -9.99
attribute ice_conc colorBarMaximum double 100.0
attribute ice_conc colorBarMinimum double 0.0
attribute ice_conc comment String This field contains the ice concentration from field ice_conc_unfiltered, which has been filtered to remove spurious ice. Note, this removes some amounts of valid ice at the ice edge.
attribute ice_conc grid_mapping String Polar_Stereographic_Grid
attribute ice_conc ioos_category String Ice Distribution
attribute ice_conc long_name String The filtered sea ice concentration on the southern hemisphere
attribute ice_conc standard_name String sea_ice_area_fraction
attribute ice_conc units String 1
attribute ice_conc valid_max float 100.0
attribute ice_conc valid_min float 0.0
variable ice_conc_unfiltered float time, yc, xc
attribute ice_conc_unfiltered _FillValue float -9.99
attribute ice_conc_unfiltered colorBarMaximum double 100.0
attribute ice_conc_unfiltered colorBarMinimum double 0.0
attribute ice_conc_unfiltered comment String This field contains the unfiltered ice concentration. A climatology mask has been applied to remove spurious ice, but no other filtering is applied. This field may contain spurious ice. If a filtered field is required, use the \"ice_conc\" field.
attribute ice_conc_unfiltered grid_mapping String Polar_Stereographic_Grid
attribute ice_conc_unfiltered ioos_category String Ice Distribution
attribute ice_conc_unfiltered long_name String The unfiltered sea ice concentration on the southern hemisphere
attribute ice_conc_unfiltered standard_name String sea_ice_area_fraction
attribute ice_conc_unfiltered units String 1
attribute ice_conc_unfiltered valid_max float 100.0
attribute ice_conc_unfiltered valid_min float 0.0
variable masks byte time, yc, xc
attribute masks _FillValue byte -128
attribute masks colorBarMaximum double 5.0
attribute masks colorBarMinimum double 0.0
attribute masks comment String This bitmask gives the masks which have been applied to convert the ice_conc_unfiltered variable to the ice_conc variable.
attribute masks flag_descriptions String all bits to 0 -> no masks set\nbit 1 -> mask for sea ice maximum climatology set\nbit 2 -> open water filter mask set\nbit 3 -> NWP 2m air temperature mask set
attribute masks flag_masks byte 1, 2, 4
attribute masks flag_meanings String max_ice_climato open_water_filtered high_t2m
attribute masks grid_mapping String Polar_Stereographic_Grid
attribute masks ioos_category String Ice Distribution
attribute masks long_name String masks used to filter ice concentration
attribute masks units String 1
attribute masks valid_range byte 0, 7
variable confidence_level byte time, yc, xc
attribute confidence_level _FillValue byte -128
attribute confidence_level colorBarContinuous String false
attribute confidence_level colorBarMaximum double 6.0
attribute confidence_level colorBarMinimum double 0.0
attribute confidence_level colorBarNSections int 6
attribute confidence_level colorBarPalette String Rainbow
attribute confidence_level flag_descriptions String 0 -> not processed, no input data\n1 -> computation failed\n2 -> processed but to be used with care\n3 -> nominal processing, acceptable quality\n4 -> nominal processing, good quality\n5 -> nominal processing, excellent quality
attribute confidence_level flag_meanings String unprocessed erroneous unreliable acceptable good excellent
attribute confidence_level flag_values byte 0, 1, 2, 3, 4, 5
attribute confidence_level grid_mapping String Polar_Stereographic_Grid
attribute confidence_level ioos_category String Statistics
attribute confidence_level long_name String confidence level
attribute confidence_level valid_max byte 5
attribute confidence_level valid_min byte 0
variable status_flag byte time, yc, xc
attribute status_flag _FillValue byte -1
attribute status_flag colorBarMaximum double 150.0
attribute status_flag colorBarMinimum double 0.0
attribute status_flag comment String This file contains two ice concentration variables: \"ice_conc\" and \"ice_conc_unfiltered\". These flags relate to the \"ice_conc\" variable.
attribute status_flag flag_descriptions String 0 -> nominal value from algorithm used\n  2 -> sea ice algorithm applied over lake\n 10 -> maximum climatology test applied\n 11 -> coastal correction algorithm applied\n 12 -> open water filter applied\n100 -> missing value due to over land\n101 -> missing value due to missing data\n102 -> unclassified pixel
attribute status_flag flag_meanings String nominal lake background coastal_correction open_water_filter land missing unclassified
attribute status_flag flag_values byte 0, 2, 10, 11, 12, 100, 101, 102
attribute status_flag grid_mapping String Polar_Stereographic_Grid
attribute status_flag ioos_category String Quality
attribute status_flag long_name String status flag for concentration of sea ice retrieval
attribute status_flag standard_name String sea_ice_area_fraction status_flag
attribute status_flag units String 1
attribute status_flag valid_max byte 102
attribute status_flag valid_min byte 0
variable total_uncertainty float time, yc, xc
attribute total_uncertainty _FillValue float -1.0E10
attribute total_uncertainty colorBarMaximum double 1.5
attribute total_uncertainty colorBarMinimum double 0.0
attribute total_uncertainty grid_mapping String Polar_Stereographic_Grid
attribute total_uncertainty ioos_category String Quality
attribute total_uncertainty least_significant_digit int 3
attribute total_uncertainty long_name String The sea ice concentration uncertainty on the southern hemisphere
attribute total_uncertainty units String 1
variable smearing_uncertainty float time, yc, xc
attribute smearing_uncertainty _FillValue float -1.0E10
attribute smearing_uncertainty colorBarMaximum double 1.5
attribute smearing_uncertainty colorBarMinimum double 0.0
attribute smearing_uncertainty grid_mapping String Polar_Stereographic_Grid
attribute smearing_uncertainty ioos_category String Quality
attribute smearing_uncertainty least_significant_digit int 3
attribute smearing_uncertainty long_name String The sea ice concentration smearing uncertainty on the southern hemisphere
attribute smearing_uncertainty units String 1
variable algorithm_uncertainty float time, yc, xc
attribute algorithm_uncertainty _FillValue float -1.0E10
attribute algorithm_uncertainty colorBarMaximum double 1.5
attribute algorithm_uncertainty colorBarMinimum double 0.0
attribute algorithm_uncertainty grid_mapping String Polar_Stereographic_Grid
attribute algorithm_uncertainty ioos_category String Quality
attribute algorithm_uncertainty least_significant_digit int 3
attribute algorithm_uncertainty long_name String The sea ice concentration algorithm and tie-point uncertainty on the southern hemisphere
attribute algorithm_uncertainty units String 1

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