Arctic sea ice concentration, thickness, and volume dataset from CICE5/DART for 20 years

This dataset consists of sea ice concentration (SIC), sea ice thickness (SIT), and sea ice volume (SIV) data over the Arctic Ocean, obtained from satellite-derived sea ice data assimilation experiments for 20 years (ciceDA_02SICSITDA_20years_02.nc : May 2014 - April 2020).

The sea ice model and data assimilation system used for this dataset were Los Alamos Sea Ice Model version 5.1.2 (CICE5) and Data Assimilation Research Testbed (DART), respectively.

The CICE5/DART experiments were conducted: (1) 'noDA' - experiment without data assimilation, (2) 'SICSITDA' - experiment with both satellite-derived SIC and PIOMAS SIT assimilation.

Descriptions of the variables are provided below.

Variable
Long Name
Unit
Dimension

LAT
latitude
degrees_north_from_50N
[1-d latitude]

LON
longitude
degrees_east_from_0E
[1-d longitude]

TIME
time
days since 1994-05-01
[time]

ENS
number of ensemble member
-
[1-d range from 1 to 30]

SIC
sea ice concentration
-
[number of ensemble member, time, 1-d latitude+longitude]

SIT
sea ice thickness
m
[number of ensemble member, time, 1-d latitude+longitude]

SIV
sea ice volume
km^3
[number of ensemble member, time, 1-d latitude+longitude]