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: 2022-06-09

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2022-06-13

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 86 1 1 0 0 0 0
OW 0 41 1 14 3 0 0 0
VODI 0 41 6 50 4 0 0 0
ODI 0 50 2 49 28 9 0 0
CDI 0 72 14 93 289 646 123 0
VCDI 0 0 0 0 0 2646 16251 16382
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 80 1 1 1 0 0 0
OW 0 34 0 10 2 0 0 0
VODI 0 43 4 35 3 0 0 0
ODI 0 41 4 51 18 20 0 0
CDI 0 92 15 110 300 928 680 0
VCDI 0 0 0 0 0 2353 15694 16382

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 1 0 0 0 0
OW 0 1 0 3 0 0 0 0
VODI 0 0 0 6 2 0 0 0
ODI 0 0 0 6 2 2 0 0
CDI 0 0 0 0 4 4 19 4
VCDI 0 0 0 70 195 299 669 1846
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 0 0 0 0
VODI 0 1 0 5 2 0 0 0
ODI 0 0 0 5 2 3 1 0
CDI 0 0 0 4 4 3 85 37
VCDI 0 0 0 70 195 299 602 1813

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 17 270 1104 7057 1534
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 17 270 1104 7057 1534

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 598 12 46 1 0 0 0
OW 0 150 11 37 0 0 0 0
VODI 0 84 5 41 2 0 0 0
ODI 0 65 7 47 12 0 0 0
CDI 0 109 20 110 207 148 5 0
VCDI 0 6 4 43 158 994 2732 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 485 12 51 1 0 0 0
OW 0 100 6 22 0 0 0 0
VODI 0 104 7 23 0 0 0 0
ODI 0 82 2 22 2 0 0 0
CDI 0 131 16 106 77 1 18 0
VCDI 0 110 16 100 300 1141 2719 0

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 18 1 2 0 0 0 0
OW 0 9 2 10 0 0 0 0
VODI 0 0 3 34 1 0 0 0
ODI 0 1 0 38 10 0 0 0
CDI 0 0 0 50 247 112 14 0
VCDI 0 0 0 0 704 5027 963 0
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 1 1 2 0 0 0 0
VODI 0 9 0 4 0 0 0 0
ODI 0 14 1 14 0 0 0 0
CDI 0 4 4 89 71 79 14 0
VCDI 0 0 0 25 891 5060 963 0

Laptev Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 773 23 44 0 0 0 0
OW 0 116 18 91 6 0 0 0
VODI 0 113 12 219 31 0 0 0
ODI 0 89 16 227 103 5 0 0
CDI 0 127 17 352 424 830 154 0
VCDI 0 5 3 150 120 276 982 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 207 14 49 0 0 0 0
OW 0 125 5 44 11 0 0 0
VODI 0 277 8 95 7 2 0 0
ODI 0 201 14 132 46 8 0 0
CDI 0 381 39 482 427 667 202 0
VCDI 0 32 9 281 193 434 934 0

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 630 8 48 2 1 0 0
OW 0 236 39 136 20 0 0 0
VODI 0 69 11 436 321 10 3 0
ODI 0 0 0 155 2077 186 8 0
CDI 0 0 0 5 463 1208 212 0
VCDI 0 0 0 0 0 15 32 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 637 19 100 51 1 0 0
OW 0 116 24 171 93 1 0 0
VODI 0 118 4 185 287 36 4 0
ODI 0 64 11 279 895 212 27 0
CDI 0 0 0 45 1557 1170 223 0
VCDI 0 0 0 0 0 0 1 0

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8760 2206 7 14 2 0 0 0
OW 0 89 6 22 6 0 0 0
VODI 0 61 6 47 23 0 0 0
ODI 0 8 0 16 57 1 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8760 2220 7 16 3 0 0 0
OW 0 74 7 25 8 0 0 0
VODI 0 56 2 30 39 0 0 0
ODI 0 14 3 28 38 1 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0

Greenland Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6305 2480 28 119 0 0 0 0
OW 0 51 14 176 3 0 0 0
VODI 0 4 1 312 96 0 0 0
ODI 0 0 0 51 428 20 1 0
CDI 0 0 0 0 830 408 5 0
VCDI 0 0 0 0 60 113 191 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6305 2481 29 205 14 0 0 0
OW 0 52 13 150 37 0 0 0
VODI 0 2 1 188 119 0 0 0
ODI 0 0 0 89 217 19 1 0
CDI 0 0 0 26 935 427 17 0
VCDI 0 0 0 0 95 95 179 0

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8764 3162 34 157 43 0 0 0
OW 0 54 8 55 79 1 0 0
VODI 0 12 8 82 132 7 0 0
ODI 0 0 0 4 125 50 6 0
CDI 0 0 0 0 12 187 6 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8764 3155 38 196 137 1 0 0
OW 0 44 5 29 102 7 0 0
VODI 0 29 7 60 110 73 0 0
ODI 0 0 0 13 38 159 12 0
CDI 0 0 0 0 4 5 0 0
VCDI 0 0 0 0 0 0 0 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 0 691 3 42 28 2 0 0
OW 0 67 18 116 54 0 0 0
VODI 0 24 4 250 334 1 0 0
ODI 0 4 2 102 488 37 0 0
CDI 0 0 0 13 299 1372 234 0
VCDI 0 0 0 0 0 139 1479 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 681 9 96 83 2 0 0
OW 0 41 11 147 134 0 0 0
VODI 0 40 2 97 376 22 0 0
ODI 0 23 3 93 218 168 109 0
CDI 0 1 2 90 392 1359 1219 0
VCDI 0 0 0 0 0 0 385 0

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 1970 101 936 41 1 0 0
OW 0 12 6 209 140 0 0 0
VODI 0 0 0 121 431 0 0 0
ODI 0 3 1 7 1164 273 0 0
CDI 0 2 0 28 594 1411 11 0
VCDI 0 4 0 11 22 843 245 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1964 98 898 144 0 0 0
OW 0 18 9 251 248 1 0 0
VODI 0 0 0 83 439 25 0 0
ODI 0 1 0 34 512 218 0 0
CDI 0 3 1 34 953 826 64 0
VCDI 0 5 0 12 96 1458 192 0

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 15718 2670 46 446 145 0 0 0
OW 0 32 32 235 35 0 0 0
VODI 0 0 0 133 134 1 0 0
ODI 0 0 0 0 317 8 0 0
CDI 0 0 0 0 19 207 31 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 15718 2698 71 648 173 0 0 0
OW 0 4 7 125 56 0 0 0
VODI 0 0 0 41 150 16 0 0
ODI 0 0 0 0 233 43 1 0
CDI 0 0 0 0 38 157 30 0
VCDI 0 0 0 0 0 0 0 0


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