Dataset: Daily Sea Ice Concentration Analysis from OSI SAF EUMETSAT, using the OSI SAF Ice Concentration Algorithm#

Dataset identifier: osisaf_obs-si_glo_phy-sic-north_nrt_amsr2_l4_P1D-m
Data store: cmems

How to open this dataset in AVL JupyterLab  

cmems_store = new_data_store('cmems')
ds = cmems_store.open_data('osisaf_obs-si_glo_phy-sic-north_nrt_amsr2_l4_P1D-m')

Basic information#

Parameter Value
Bounding box longitude (°) -3850 to 3750
Bounding box latitude (°) -5350 to 5850
Time range 2020-01-15 to 2023-04-14

Click here for full dataset metadata.

Variable list#

Click on a variable name to jump to the variable’s full metadata.

Variable Long name Units
Polar_Stereographic_Grid [none] [none]
algorithm_uncertainty The sea ice concentration algorithm and tie-point uncertainty on the northern hemisphere 1
confidence_level confidence level [none]
ice_conc The sea ice concentration on the northern hemisphere %
smearing_uncertainty The sea ice concentration smearing uncertainty on the northern hemisphere 1
status_flag status flag for concentration of sea ice retrieval 1
total_uncertainty The sea ice concentration uncertainty on the northern hemisphere 1

Full variable metadata#

Polar_Stereographic_Grid#

Field Value
grid_mapping_name polar_stereographic
false_easting 0.0
false_northing 0.0
semi_major_axis 6378273.0
semi_minor_axis 6356889.44891
straight_vertical_longitude_from_pole -45.0
latitude_of_projection_origin 90.0
standard_parallel 70.0
proj4_string +proj=stere +a=6378273 +b=6356889.44891 +lat_0=90 +lat_ts=70 +lon_0=-45

algorithm_uncertainty#

Field Value
least_significant_digit 3
units 1
long_name The sea ice concentration algorithm and tie-point uncertainty on the northern hemisphere
grid_mapping Polar_Stereographic_Grid

confidence_level#

Field Value
long_name confidence level
valid_min 0
valid_max 5
grid_mapping Polar_Stereographic_Grid
flag_values 0, 1, 2, 3, 4, 5
flag_meanings unprocessed erroneous unreliable acceptable good excellent
flag_descriptions 0 -> not processed, no input data 1 -> computation failed 2 -> processed but to be used with care 3 -> nominal processing, acceptable quality 4 -> nominal processing, good quality 5 -> nominal processing, excellent quality

ice_conc#

Field Value
long_name The sea ice concentration on the northern hemisphere
standard_name sea_ice_area_fraction
units %
valid_min 0
valid_max 10000
grid_mapping Polar_Stereographic_Grid

smearing_uncertainty#

Field Value
least_significant_digit 3
units 1
long_name The sea ice concentration smearing uncertainty on the northern hemisphere
grid_mapping Polar_Stereographic_Grid

status_flag#

Field Value
units 1
long_name status flag for concentration of sea ice retrieval
standard_name sea_ice_area_fraction status_flag
valid_min 0
valid_max 102
grid_mapping Polar_Stereographic_Grid
flag_values 0, 2, 10, 14, 100, 101, 102
flag_meanings nominal lake background type_mask land missing unclassified
flag_descriptions 0 -> nominal value from algorithm used 2 -> sea ice algorithm applied over lake 10 -> background data was used for setting the value 14 -> value set using an ice type mask 100 -> missing value due to over land 101 -> missing value due to missing data 102 -> unclassified pixel

total_uncertainty#

Field Value
least_significant_digit 3
units 1
long_name The sea ice concentration uncertainty on the northern hemisphere
grid_mapping Polar_Stereographic_Grid

Full dataset metadata#

Field Value
title Daily Sea Ice Concentration Analysis from OSI SAF EUMETSAT, using the OSI SAF Ice Concentration Algorithm
product_id OSI-408
product_name osi_saf_amsr2ice_conc
product_status operational
abstract The daily analysis of sea ice concentration is obtained from operation satellite images of the polar regions. It is ased on atmospherically corrected signal and a carefully selected sea ice concentration algorithm. This product is freely available from the EUMETSAT Oean and Sea Ice Satellite Application Facility (OSI SAF).
topiccategory Oceans Climatology Meteorology Atmosphere
keywords Sea Ice Concentration, Sea Ice, Oceanography, Meteorology, Climate, Remote Sensing
gcmd_keywords Cryosphere > Sea Ice > Sea Ice Concentration Oceans > Sea Ice > Sea Ice Concentration Geographic Region > Northern Hemisphere Vertical Location > Sea Surface EUMETSAT/OSISAF > Satellite Application Facility on Ocean and Sea Ice, European Organisation for the Exploitation of Meteorological Satellites
activity_type Space borne instrument
easternmost_longitude 180.0
westernmost_longitude -180.0
northernmost_latitude 90.0
southernmost_latitude 30.98056
area Northern Hemisphere
instrument_type AMSR2
platform_name GCOM-W
start_date 2023-04-14 00:00:00
stop_date 2023-04-15 00:00:00
project_name EUMETSAT OSI SAF
institution EUMETSAT OSI SAF
PI_name Rasmus Tonboe
contact osisaf-manager@met.no
distribution_statement Free
copyright_statement Copyright 2023 EUMETSAT
references Product User Manual for OSI SAF AMSR2 Global Sea Ice Concentration, Rasmus Tonboe et al. (editor) v1.1, Aug 2016 http://www.osi-saf.org
history 2023-04-15 creation
product_version 1.0
software_version 1.0
netcdf_version 3.6.3
Conventions CF-1.4