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: 2022-07-07

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2022-07-11

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 0 363 9 21 0 0 0 0
OW 0 42 15 75 4 0 0 0
VODI 0 12 5 106 30 1 0 0
ODI 0 0 3 47 229 34 0 0
CDI 0 0 0 70 3166 9173 542 0
VCDI 0 0 0 0 160 11723 10552 520
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 277 8 19 0 0 0 0
OW 0 48 4 42 4 0 0 0
VODI 0 35 6 61 13 4 0 0
ODI 0 46 9 63 88 34 0 0
CDI 0 11 5 134 2864 7908 754 0
VCDI 0 0 0 0 620 12985 10340 520

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 25 5 28 5 0 0 0
OW 0 12 0 24 14 0 0 0
VODI 0 9 0 24 89 2 0 0
ODI 0 3 0 9 129 18 0 0
CDI 0 0 0 0 418 493 0 0
VCDI 0 0 0 8 434 1277 107 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 29 5 38 12 0 0 0
OW 0 13 0 25 29 0 0 0
VODI 0 4 0 15 103 15 0 0
ODI 0 3 0 7 69 25 0 0
CDI 0 0 0 0 380 468 0 0
VCDI 0 0 0 8 496 1282 107 0

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 75 8 77 0 0 0 0
OW 0 60 9 66 0 0 0 0
VODI 0 12 9 252 14 0 0 0
ODI 0 120 14 393 522 0 0 0
CDI 0 74 3 30 1599 1514 0 0
VCDI 0 0 0 0 208 4923 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 37 7 73 0 0 0 0
OW 0 38 3 35 0 0 0 0
VODI 0 60 9 126 21 0 0 0
ODI 0 16 8 177 68 0 0 0
CDI 0 190 16 407 1927 1261 0 0
VCDI 0 0 0 0 327 5176 0 0

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 876 1681 39 145 0 0 0 0
OW 3 25 14 277 0 0 0 0
VODI 0 0 0 685 75 0 0 0
ODI 0 0 0 102 583 12 0 0
CDI 0 0 0 0 971 166 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 876 1665 40 249 0 0 0 0
OW 3 37 10 366 16 0 0 0
VODI 0 4 3 401 163 0 0 0
ODI 0 0 0 162 334 15 0 0
CDI 0 0 0 31 1063 163 0 0
VCDI 0 0 0 0 53 0 0 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 0 570 14 29 0 0 0 0
OW 0 132 28 159 19 0 0 0
VODI 0 4 11 476 143 8 0 0
ODI 0 0 0 27 1358 108 0 0
CDI 0 0 0 0 191 3968 0 0
VCDI 0 0 0 1 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 0 493 12 26 18 0 0 0
OW 0 123 25 180 24 2 0 0
VODI 0 80 13 313 199 25 0 0
ODI 0 10 3 151 565 160 0 0
CDI 0 0 0 21 905 3897 0 0
VCDI 0 0 0 1 0 0 0 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 9 1530 16 40 5 0 0 0
OW 0 122 44 197 22 0 0 0
VODI 0 3 4 410 258 0 0 0
ODI 0 0 0 73 531 9 0 0
CDI 0 0 0 0 265 731 475 0
VCDI 0 0 0 0 0 9 573 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9 1455 15 67 16 0 0 0
OW 0 151 31 163 50 0 0 0
VODI 0 49 18 329 257 0 0 0
ODI 0 0 0 116 388 12 0 0
CDI 0 0 0 45 370 737 911 0
VCDI 0 0 0 0 0 0 137 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 975 3389 55 289 35 1 0 0
OW 2 107 29 245 58 1 0 0
VODI 0 9 7 268 100 17 0 0
ODI 0 2 0 43 170 24 0 0
CDI 0 1 0 30 152 200 32 0
VCDI 0 0 0 0 0 11 79 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 975 3271 51 319 72 2 0 0
OW 2 190 29 252 77 10 0 0
VODI 0 38 11 193 89 18 0 0
ODI 0 3 0 59 101 43 0 0
CDI 0 5 0 52 176 169 65 0
VCDI 0 1 0 0 0 12 46 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 10208 1122 0 1 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 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10208 1122 0 1 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 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 7160 2596 33 173 27 0 0 0
OW 0 85 13 161 24 0 0 0
VODI 0 33 9 139 103 6 0 0
ODI 0 1 0 45 368 10 0 0
CDI 0 0 0 63 404 243 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 7160 2578 37 220 53 0 0 0
OW 0 85 8 122 45 0 0 0
VODI 0 51 9 104 131 7 0 0
ODI 0 1 1 60 204 10 0 0
CDI 0 0 0 75 493 242 0 0
VCDI 0 0 0 0 0 0 0 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 10558 2167 18 39 0 0 0 0
OW 0 24 6 79 11 0 0 0
VODI 0 10 0 42 32 0 0 0
ODI 0 0 0 0 2 0 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 10558 2150 20 49 0 0 0 0
OW 0 43 4 88 9 0 0 0
VODI 0 8 0 23 36 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 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 1 3053 46 235 79 0 0 0
OW 0 99 32 147 43 0 0 0
VODI 0 10 3 195 224 0 0 0
ODI 0 0 0 8 675 84 0 0
CDI 0 0 0 0 89 780 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 1 3072 50 300 124 0 0 0
OW 0 79 23 126 123 0 0 0
VODI 0 11 8 143 428 10 0 0
ODI 0 0 0 16 349 345 0 0
CDI 0 0 0 0 86 509 0 0
VCDI 0 0 0 0 0 0 0 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 2922 3433 51 269 81 2 0 0
OW 0 115 17 195 120 2 0 0
VODI 0 26 16 307 506 0 0 0
ODI 0 0 0 9 459 37 0 0
CDI 0 0 0 0 8 12 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 2922 3414 51 276 93 2 0 0
OW 0 99 23 282 263 2 0 0
VODI 0 56 6 179 689 1 0 0
ODI 0 5 4 43 108 37 0 0
CDI 0 0 0 0 21 11 0 0
VCDI 0 0 0 0 0 0 0 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 17973 1709 21 93 16 0 0 0
OW 0 10 6 45 18 0 0 0
VODI 0 0 0 45 40 7 0 0
ODI 0 0 0 0 124 21 0 0
CDI 0 0 0 0 8 73 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 17973 1719 27 141 39 0 0 0
OW 0 0 0 40 91 13 0 0
VODI 0 0 0 2 75 67 0 0
ODI 0 0 0 0 1 21 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0


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