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: 2019-06-20

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-06-24

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 4 0 23 0 9 2 0
OW 0 8 4 48 13 5 1 0
VODI 0 3 2 105 71 7 6 0
ODI 0 18 4 64 272 26 8 0
CDI 0 3 2 28 633 3806 172 0
VCDI 0 0 0 0 288 7934 13225 10108
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 6 1 48 3 13 2 0
OW 0 5 3 24 46 5 6 0
VODI 0 4 1 52 125 31 13 0
ODI 0 0 1 67 120 141 13 0
CDI 0 21 6 77 613 2587 333 0
VCDI 0 0 0 0 370 9010 13047 10108

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 0 239 2 5 9 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 6 11 1 0 0
ODI 0 0 0 10 38 22 0 0
CDI 0 0 0 0 116 185 0 0
VCDI 0 0 0 0 747 846 571 325
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 239 2 5 9 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 2 12 3 0 0
ODI 0 0 0 11 37 28 0 0
CDI 0 0 0 3 32 135 0 0
VCDI 0 0 0 0 831 888 571 325

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 1945 46 225 146 0 0 0
OW 0 33 14 124 51 0 0 0
VODI 0 19 4 148 131 0 0 0
ODI 0 17 2 32 449 12 0 0
CDI 0 15 5 82 582 1613 96 0
VCDI 0 0 0 0 0 1182 2323 686
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1851 44 232 174 0 0 0
OW 0 57 10 109 90 0 0 0
VODI 0 41 4 112 261 7 0 0
ODI 0 28 4 41 248 54 0 0
CDI 0 52 9 117 586 1337 157 0
VCDI 0 0 0 0 0 1409 2262 686

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 371 2002 29 54 0 0 0 0
OW 5 33 29 181 5 0 0 0
VODI 0 0 0 200 148 0 0 0
ODI 0 0 0 15 439 51 0 0
CDI 0 0 0 0 57 1031 65 0
VCDI 0 0 0 0 0 463 476 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 372 2003 36 111 9 0 0 0
OW 4 31 16 154 71 0 0 0
VODI 0 1 6 146 228 7 0 0
ODI 0 0 0 39 221 84 0 0
CDI 0 0 0 0 120 879 107 0
VCDI 0 0 0 0 0 575 434 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 56 5 47 18 0 0 0
OW 0 36 8 100 71 0 0 0
VODI 0 0 0 203 205 10 0 0
ODI 0 0 0 63 1011 181 0 0
CDI 0 0 0 1 550 4126 334 0
VCDI 0 1 0 1 49 131 39 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 59 6 38 22 0 0 0
OW 0 21 2 89 124 2 0 0
VODI 0 12 5 146 276 166 0 0
ODI 0 0 0 120 489 406 0 0
CDI 0 0 0 20 927 3637 354 0
VCDI 0 1 0 2 66 237 19 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 1537 62 251 89 24 15 0
OW 0 73 18 146 134 2 0 0
VODI 0 28 0 134 319 21 0 0
ODI 0 4 0 29 837 182 0 0
CDI 0 0 0 3 184 1232 0 0
VCDI 0 0 0 0 2 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 1447 56 281 230 28 15 0
OW 0 122 11 126 255 39 0 0
VODI 0 71 13 93 521 303 0 0
ODI 0 2 0 50 286 326 0 0
CDI 0 0 0 10 229 765 0 0
VCDI 0 0 0 3 44 0 0 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 2080 44 361 90 7 0 0
OW 0 116 41 388 96 2 0 0
VODI 0 15 9 430 606 6 0 0
ODI 0 0 0 1 1198 106 7 0
CDI 0 0 0 0 25 566 69 0
VCDI 0 0 0 0 0 0 68 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 2141 56 521 184 9 0 0
OW 0 69 35 425 317 6 0 0
VODI 0 1 3 234 1019 101 14 0
ODI 0 0 0 0 488 407 55 0
CDI 0 0 0 0 7 164 58 0
VCDI 0 0 0 0 0 0 17 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 5385 4141 47 197 32 0 0 0
OW 0 37 35 157 38 0 0 0
VODI 0 3 0 139 183 16 0 0
ODI 0 0 0 1 409 56 3 0
CDI 0 0 0 0 29 392 29 0
VCDI 0 0 0 0 0 0 2 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5385 4163 64 304 110 0 0 0
OW 0 18 18 127 163 21 0 0
VODI 0 0 0 63 330 136 2 0
ODI 0 0 0 0 85 241 12 0
CDI 0 0 0 0 3 66 20 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 5988 2626 40 340 45 0 0 0
OW 0 2 1 180 122 0 0 0
VODI 0 0 0 152 545 10 0 0
ODI 0 3 1 94 1379 42 0 0
CDI 0 0 0 1 94 31 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 5988 2628 41 432 97 0 0 0
OW 0 0 0 174 358 0 0 0
VODI 0 0 0 46 785 23 0 0
ODI 0 0 0 29 564 45 0 0
CDI 0 3 1 86 381 15 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 10557 1936 25 143 0 0 0 0
OW 0 70 14 135 0 0 0 0
VODI 0 20 5 52 17 0 0 0
ODI 0 0 0 0 14 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 10557 1940 32 192 0 0 0 0
OW 0 46 6 111 29 0 0 0
VODI 0 40 6 27 2 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 3 3098 75 364 101 0 0 0
OW 0 33 19 324 36 5 0 0
VODI 0 6 3 307 323 2 0 0
ODI 0 0 0 13 976 60 0 0
CDI 0 0 0 0 15 40 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 3 3103 83 499 114 4 0 0
OW 0 32 12 326 160 3 0 0
VODI 0 2 2 154 527 2 0 0
ODI 0 0 0 29 396 40 0 0
CDI 0 0 0 0 254 58 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 0 2140 136 777 41 0 0 0
OW 0 40 19 426 221 1 0 0
VODI 0 3 2 209 901 27 0 0
ODI 0 2 0 17 1546 1047 0 0
CDI 0 4 1 11 38 978 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 0 2140 141 1009 443 0 0 0
OW 0 37 12 281 681 115 0 0
VODI 0 6 4 122 1228 525 0 0
ODI 0 0 0 8 283 700 0 0
CDI 0 6 1 20 112 713 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 16600 2817 36 153 28 1 0 0
OW 0 13 8 88 19 5 0 0
VODI 0 1 2 63 119 16 0 0
ODI 0 0 0 1 158 57 0 0
CDI 0 0 0 0 0 24 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 16600 2817 37 194 84 12 0 0
OW 0 13 7 75 64 19 0 0
VODI 0 1 2 36 122 44 0 0
ODI 0 0 0 0 54 28 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0


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