Dataset: Sea Ice Thickness derived from merging CryoSat-2 and SMOS ice thickness

Dataset: Sea Ice Thickness derived from merging CryoSat-2 and SMOS ice thickness#

Dataset identifier: esa_obs-si_arc_phy-sit_nrt_l4_multi_P1D-m
Data store: cmems

How to open this dataset in AVL JupyterLab

cmems_store = new_data_store('cmems')
ds = cmems_store.open_data('esa_obs-si_arc_phy-sit_nrt_l4_multi_P1D-m')

Basic information#

Parameter	Value
Bounding box longitude (°)	-5400 to 5400
Bounding box latitude (°)	-5400 to 5400
Time range	2019-10-31 to 2023-04-08

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
Lambert_Azimuthal_Grid	[none]	[none]
analysis_sea_ice_thickness	CS2SMOS merged sea ice thickness	m
analysis_sea_ice_thickness_unc	uncertainty of the merged sea ice thickness	m
background_sea_ice_thickness	optimal interpolation background field	m
correlation_length_scale	correlation length scale of sea ice thickness	m
cryosat_sea_ice_thickness	weekly averaged CryoSat-2 ice thickness	m
cryosat_sea_ice_thickness_uncertainty	weekly averaged CryoSat-2 ice thickness	m
innovation	difference between background and analysis ice thickness	m
sea_ice_concentration	sea ice concentration	%
sea_ice_type	sea ice type	[none]
smos_sea_ice_thickness	weekly averaged SMOS ice thickness	m
smos_sea_ice_thickness_uncertainty	weekly averaged SMOS ice thickness uncertaintyy	m
weighted_mean_sea_ice_thickness	weighted mean of weekly cs2 and smos ice thickness retrievals	m

Full variable metadata#

Lambert_Azimuthal_Grid#

Field	Value
grid_mapping_name	lambert_azimuthal_equal_area
longitude_of_projection_origin	0.0
latitude_of_projection_origin	90.0
false_easting	0.0
false_northing	0.0
semi_major_axis	6378137.0
inverse_flattening	298.2572326660156
proj4_string	+proj=laea +lon_0=0 +datum=WGS84 +ellps=WGS84 +lat_0=90.0

analysis_sea_ice_thickness#

Field	Value
units	m
long_name	CS2SMOS merged sea ice thickness
standard_name	sea_ice_thickness
grid_mapping	Lambert_Azimuthal_Grid

analysis_sea_ice_thickness_unc#

Field	Value
units	m
long_name	uncertainty of the merged sea ice thickness
grid_mapping	Lambert_Azimuthal_Grid

background_sea_ice_thickness#

Field	Value
units	m
long_name	optimal interpolation background field
standard_name	sea_ice_thickness
grid_mapping	Lambert_Azimuthal_Grid

correlation_length_scale#

Field	Value
units	m
long_name	correlation length scale of sea ice thickness
grid_mapping	Lambert_Azimuthal_Grid

cryosat_sea_ice_thickness#

Field	Value
units	m
long_name	weekly averaged CryoSat-2 ice thickness
standard_name	sea_ice_thickness
grid_mapping	Lambert_Azimuthal_Grid
source	AWI Sea Ice Radar Altimetry (SIRAL)
source_product_version	2.5

cryosat_sea_ice_thickness_uncertainty#

Field	Value
units	m
long_name	weekly averaged CryoSat-2 ice thickness
standard_name	sea_ice_thickness
grid_mapping	Lambert_Azimuthal_Grid
source	AWI Sea Ice Radar Altimetry (SIRAL)
source_product_version	2.5

innovation#

Field	Value
units	m
long_name	difference between background and analysis ice thickness
grid_mapping	Lambert_Azimuthal_Grid

sea_ice_concentration#

Field	Value
units	%
long_name	sea ice concentration
standard_name	sea_ice_area_fraction
grid_mapping	Lambert_Azimuthal_Grid
source_product_id	OSI-401
source_product_version	4.0

sea_ice_type#

Field	Value
long_name	sea ice type
standard_name	sea_ice_classification
grid_mapping	Lambert_Azimuthal_Grid
source_product_id	OSI-403-d
source_product_version	5.0
flag_values	2, 3
flag_meanings	first_year_ice multi_year_ice
flag_descriptions	2 -> relatively young ice\\n 3 -> ice that survived a summer melt

smos_sea_ice_thickness#

Field	Value
units	m
long_name	weekly averaged SMOS ice thickness
standard_name	sea_ice_thickness
grid_mapping	Lambert_Azimuthal_Grid
source	SMOS-Icethickness
source_product_version	3.3

smos_sea_ice_thickness_uncertainty#

Field	Value
units	m
long_name	weekly averaged SMOS ice thickness uncertaintyy
standard_name	sea_ice_thickness
grid_mapping	Lambert_Azimuthal_Grid
source	SMOS-Icethickness
source_product_version	3.3

weighted_mean_sea_ice_thickness#

Field	Value
units	m
long_name	weighted mean of weekly cs2 and smos ice thickness retrievals
standard_name	sea_ice_thickness
grid_mapping	Lambert_Azimuthal_Grid

Full dataset metadata#

Field	Value
title	Sea Ice Thickness derived from merging CryoSat-2 and SMOS ice thickness
description	Weekly Arctic sea-ice thickness derived from CryoSat-2 and SMOS using an optimal interpolation scheme
summary	Weekly Arctic sea-ice thickness derived from CryoSat-2 and SMOS using an optimal interpolation scheme
keywords	Cryosphere > Sea Ice > Sea Ice Thickness
product_version	205
processing_mode	o
time_of_creation	Thu Apr 13 10:07:53 2023
history	Thu Apr 13 10:07:53 2023 creation
cdm_data_type	Grid
Conventions	CF-1.6
spatial_resolution	25.0 km grid spacing
geospatial_lat_min	16.623929977416992
geospatial_lat_max	90.0
geospatial_lon_min	-180.0
geospatial_lon_max	180.0
geospatial_vertical_min	0.0
geospatial_vertical_max	0.0
time_coverage_start	2023-04-05T00:00:00Z
time_coverage_end	2023-04-12T00:00:00Z
time_coverage_duration	P7D
time_coverage_resolution	P1D
platform	CryoSat-2, SMOS
project	CS2SMOS PDS: SMOS & CryoSat-2 Sea Ice Data Product Processing and Dissemination Service
institution	Alfred-Wegener-Institut Helmholtz Zentrum für Polar und Meeresforschung (AWI), http://www.awi.de
creator_name	Alfred-Wegener-Institut Helmholtz Zentrum für Polar und Meeresforschung (AWI), http://www.awi.de
creator_type	institution
creator_url	www.awi.de
contributor_name	Robert Ricker, Stefan Hendricks, Xiangshan Tian-Kunze, Lars Kaleschke
contributor_role	PrincipalInvestigator, Author, Author, Author
publisher_email	cs2smos-support@awi.de
publisher_url	https://spaces.awi.de/confluence/x/DwVmEQ
references	Ricker, R., Hendricks, S., Kaleschke, L., Tian-Kunze, X., King, J., and Haas, C.: A weekly Arctic sea-ice thickness data record from merged CryoSat-2 and SMOS satellite data, The Cryosphere, 11, 1607-1623, https://doi.org/10.5194/tc-11-1607-2017, 2017.