Description of algorithm
Full domain
American sector
European sector
Asian sector
GODAE regions
  Ice concntr, edge pos
  Contingency tables

Validation of sea ice concentration - GODAE regions

Bulletin date: 2020-02-27

Model: ARC MFC - TOPAZ

Data source: OSI SAF N.H. sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: 2020-03-02

Best estimate

Forecast

Arctic Deep Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 6 4 0
OW 0 0 0 0 0 7 7 0
VODI 0 0 0 0 0 5 10 0
ODI 0 0 0 0 0 1 22 0
CDI 0 0 0 0 0 9 53 6
VCDI 0 0 0 0 1 47 4777 31947
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 9 5 0
OW 0 0 0 0 0 6 6 0
VODI 0 0 0 0 0 4 14 0
ODI 0 0 0 0 0 1 32 0
CDI 0 0 0 0 0 0 40 7
VCDI 0 0 0 0 1 55 4776 31946

Queen Elisabeth Islands:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 2
VCDI 0 0 0 0 0 1 289 2841
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 1 289 2843

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 9982
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 9982

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 3 626 5025
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 3 626 5025

Siberian Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 12 14 0
CDI 0 0 0 0 8 62 60 9
VCDI 0 0 0 0 16 215 3122 3728
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 8 7 0
CDI 0 0 0 0 2 53 61 4
VCDI 0 0 0 0 22 228 3128 3733

Laptev Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 1 0 0 0
ODI 0 0 0 0 23 61 0 0
CDI 0 0 0 0 62 209 14 4
VCDI 0 0 0 0 5 459 2557 1931
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 8 17 0 0
CDI 0 0 0 0 43 85 5 3
VCDI 0 0 0 0 40 627 2566 1932

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 1 0 14 87 5 0 0
ODI 0 7 2 13 175 266 6 0
CDI 0 27 4 42 63 436 107 0
VCDI 0 4 1 50 147 667 4191 16
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 2 5 0 0 0
VODI 0 0 0 11 107 2 0 0
ODI 0 0 0 0 140 150 2 0
CDI 0 0 0 0 33 294 32 0
VCDI 0 39 7 106 187 928 4270 16

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3006 3740 52 214 115 59 1 0
OW 0 80 16 228 65 49 6 0
VODI 0 41 7 110 229 73 30 0
ODI 0 21 0 29 98 73 28 0
CDI 0 12 0 4 77 56 65 0
VCDI 0 2 2 7 55 317 2224 140
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3006 3624 50 218 137 117 7 0
OW 0 153 10 152 35 44 20 0
VODI 0 58 11 127 129 36 53 0
ODI 0 16 3 64 167 74 49 0
CDI 0 22 1 21 80 53 92 0
VCDI 0 23 2 10 91 303 2133 140

Greenland Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4676 3538 17 157 85 16 0 0
OW 0 139 14 55 41 12 1 0
VODI 0 36 5 139 72 19 3 0
ODI 0 0 0 57 95 36 5 0
CDI 0 0 0 8 138 61 26 0
VCDI 0 0 0 0 60 340 1681 164
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4676 3492 20 176 102 20 0 0
OW 0 150 8 35 54 16 2 0
VODI 0 59 5 110 51 23 9 0
ODI 0 11 3 62 59 33 8 0
CDI 0 1 0 28 115 44 20 0
VCDI 0 0 0 5 110 348 1677 164

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8652 2986 30 131 180 36 0 0
OW 0 164 3 9 17 5 0 0
VODI 0 85 20 31 38 21 4 0
ODI 0 17 9 52 25 40 21 0
CDI 0 0 4 34 82 46 68 0
VCDI 0 0 0 1 57 46 74 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8652 3053 35 144 204 43 0 0
OW 0 100 7 13 31 29 8 0
VODI 0 66 9 26 22 24 21 0
ODI 0 27 7 30 12 18 38 0
CDI 0 6 6 33 55 30 52 0
VCDI 0 0 2 12 75 50 48 0

Baffin Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 5 0 0 0 0
VODI 0 0 0 8 11 0 0 0
ODI 0 0 0 0 24 10 0 0
CDI 0 0 0 11 27 24 0 0
VCDI 0 0 0 1 96 282 2020 3284
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 5 0 0 0 0
OW 0 0 0 3 2 0 0 0
VODI 0 0 0 5 10 4 0 0
ODI 0 0 0 0 20 13 0 0
CDI 0 0 0 0 25 18 0 0
VCDI 0 0 0 12 101 281 2020 3284

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 31
VCDI 0 0 0 0 0 23 1028 7505
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 16
VCDI 0 0 0 0 0 23 1028 7520

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10503 4541 39 143 10 0 0 0
OW 0 194 27 225 70 3 0 0
VODI 0 12 11 215 272 34 0 0
ODI 0 0 0 38 471 108 0 0
CDI 0 0 0 0 187 524 54 0
VCDI 0 0 0 0 2 895 1631 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10503 4713 70 395 179 30 0 0
OW 0 34 4 132 169 46 0 0
VODI 0 0 3 71 231 103 0 0
ODI 0 0 0 23 225 96 1 0
CDI 0 0 0 0 159 246 84 0
VCDI 0 0 0 0 49 1043 1600 0


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