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: 2019-05-23

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-05-27

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 26 1 0 8 38 0 0
OW 0 5 4 0 0 22 0 0
VODI 0 4 3 27 12 31 0 0
ODI 0 1 1 32 27 40 38 0
CDI 0 0 0 39 194 383 130 26
VCDI 0 0 0 0 62 523 6149 29076
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 13 1 0 8 59 0 0
OW 0 10 0 0 0 34 0 0
VODI 0 8 4 4 6 50 76 0
ODI 0 4 4 27 14 58 63 0
CDI 0 1 0 60 131 326 160 27
VCDI 0 0 0 7 144 510 6018 29075

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 0 196 11 23 0 0 0 0
OW 0 2 0 10 2 5 1 0
VODI 0 0 0 2 0 0 3 0
ODI 0 0 0 0 7 2 1 0
CDI 0 0 0 0 31 86 93 0
VCDI 0 0 0 0 0 12 905 1741
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 183 7 11 0 0 0 0
OW 0 15 4 9 2 5 2 0
VODI 0 0 0 13 0 0 2 0
ODI 0 0 0 2 8 2 1 0
CDI 0 0 0 0 30 85 180 4
VCDI 0 0 0 0 0 13 818 1737

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 755 56 220 22 0 0 0
OW 0 41 12 119 56 2 0 0
VODI 0 24 5 98 230 3 0 0
ODI 0 3 4 98 734 62 0 0
CDI 0 0 0 51 650 762 3 0
VCDI 0 0 0 2 39 1330 4422 179
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 711 57 258 101 1 0 0
OW 0 68 9 87 170 3 0 0
VODI 0 14 3 53 369 33 0 0
ODI 0 12 2 56 256 4 0 0
CDI 0 18 6 99 612 522 30 0
VCDI 0 0 0 35 223 1596 4395 179

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 66 1101 5 19 4 0 0 0
OW 10 154 10 47 2 0 0 0
VODI 0 66 21 93 32 0 0 0
ODI 0 7 5 62 77 5 0 0
CDI 0 1 2 47 169 141 9 0
VCDI 0 0 0 2 51 228 2499 719
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 66 1069 10 27 5 0 0 0
OW 10 102 3 46 5 0 0 0
VODI 0 86 8 50 28 1 1 0
ODI 0 45 8 42 51 13 3 0
CDI 0 27 14 84 164 176 69 0
VCDI 0 0 0 21 82 184 2435 719

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 6 13 6 0 0
CDI 0 0 0 27 130 185 23 0
VCDI 0 0 0 15 249 1389 4326 877
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 2 8 11 0
CDI 0 0 0 22 77 130 88 0
VCDI 0 0 0 26 313 1442 4250 877

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 45 3 16 2 0 0 0
OW 0 27 3 32 5 0 0 0
VODI 0 16 4 37 14 3 3 0
ODI 0 18 2 25 23 9 18 0
CDI 0 54 8 78 114 23 47 0
VCDI 0 139 23 85 129 346 2341 1634
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 3 1 0 0 0
OW 0 0 0 7 2 0 0 0
VODI 0 20 3 38 10 3 9 0
ODI 0 27 3 10 3 7 34 0
CDI 0 42 5 29 50 34 218 0
VCDI 0 210 32 186 221 337 2148 1634

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 190 3 32 8 0 0 0
OW 0 73 18 121 29 5 1 0
VODI 0 55 4 240 174 9 6 0
ODI 0 33 7 59 437 61 18 0
CDI 0 15 7 69 485 916 368 0
VCDI 0 0 0 0 85 1176 1627 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 173 8 77 35 5 0 0
OW 0 52 8 75 46 12 0 0
VODI 0 51 5 119 184 34 20 0
ODI 0 50 5 109 185 92 54 0
CDI 0 40 13 138 604 681 609 0
VCDI 0 0 0 3 164 1343 1337 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 5006 3613 60 236 5 0 0 0
OW 0 97 16 311 68 0 0 0
VODI 0 12 11 230 434 1 0 0
ODI 0 0 1 24 218 42 0 0
CDI 0 0 0 9 83 403 107 0
VCDI 0 0 0 0 0 42 302 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5006 3596 67 458 70 0 0 0
OW 0 73 8 184 243 0 0 0
VODI 0 42 5 112 269 17 0 0
ODI 0 9 3 26 129 104 19 0
CDI 0 2 5 26 81 314 258 0
VCDI 0 0 0 4 16 53 132 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 5802 2966 22 161 47 0 0 0
OW 0 12 7 93 76 0 0 0
VODI 0 0 0 64 110 33 0 0
ODI 0 0 0 0 189 90 1 0
CDI 0 0 0 0 78 1043 283 0
VCDI 0 0 0 0 0 163 456 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5802 2940 20 174 102 8 0 0
OW 0 37 8 58 60 67 8 0
VODI 0 1 1 77 102 142 161 0
ODI 0 0 0 9 154 177 97 0
CDI 0 0 0 0 82 870 237 0
VCDI 0 0 0 0 0 65 237 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 8833 3336 44 241 124 18 0 0
OW 0 2 3 29 73 6 0 0
VODI 0 0 0 5 75 11 0 0
ODI 0 0 0 0 30 34 2 0
CDI 0 0 0 0 3 78 31 0
VCDI 0 0 0 0 0 0 10 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8833 3338 47 274 203 25 0 0
OW 0 0 0 1 78 20 0 0
VODI 0 0 0 0 24 61 7 0
ODI 0 0 0 0 0 40 32 0
CDI 0 0 0 0 0 1 4 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 1235 32 185 37 0 0 0
OW 0 42 15 240 110 7 0 0
VODI 0 0 0 179 330 8 0 0
ODI 0 0 0 1 373 113 4 0
CDI 0 0 0 0 38 699 240 0
VCDI 0 0 0 0 0 50 1716 149
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1241 34 295 176 8 0 0
OW 0 36 13 213 219 9 1 0
VODI 0 0 0 85 323 75 4 0
ODI 0 0 0 12 146 316 24 0
CDI 0 0 0 0 24 466 1254 12
VCDI 0 0 0 0 0 3 677 137

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 8 2 102 76 21 1 0
OW 0 0 0 92 182 27 0 0
VODI 0 0 0 109 333 26 0 0
ODI 0 0 0 1 743 311 19 0
CDI 0 0 0 0 195 965 175 1
VCDI 0 0 0 0 59 519 3842 778
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 8 2 173 360 56 1 0
OW 0 0 0 91 185 56 0 0
VODI 0 0 0 40 354 100 18 0
ODI 0 0 0 0 317 407 31 0
CDI 0 0 0 0 245 487 430 12
VCDI 0 0 0 0 127 763 3557 767

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 13222 4131 50 390 235 43 0 0
OW 0 16 19 233 147 16 0 0
VODI 0 0 0 161 338 40 0 0
ODI 0 0 0 2 238 70 5 0
CDI 0 0 0 0 8 190 26 0
VCDI 0 0 0 0 0 8 621 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 13222 4130 60 582 515 64 0 0
OW 0 17 9 118 232 53 0 0
VODI 0 0 0 79 175 86 5 0
ODI 0 0 0 7 44 117 15 0
CDI 0 0 0 0 0 47 460 0
VCDI 0 0 0 0 0 0 172 0


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