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: 2022-10-06

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2022-10-10

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 192 2951 23 117 0 0 0 0
OW 0 296 31 215 19 0 0 0
VODI 0 70 20 269 246 0 0 0
ODI 0 35 3 74 379 100 0 0
CDI 0 25 7 74 242 892 4 0
VCDI 0 0 0 15 166 3987 14405 12045
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 192 2441 15 71 10 0 0 0
OW 0 491 18 157 78 0 0 0
VODI 0 320 24 259 356 125 0 0
ODI 0 67 17 98 128 318 0 0
CDI 0 45 6 114 160 395 44 0
VCDI 0 13 4 65 320 4141 14365 12045

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 117 959 10 70 27 0 0 0
OW 1 106 13 25 9 0 0 0
VODI 0 36 9 67 24 0 0 0
ODI 0 1 1 16 298 6 0 0
CDI 0 0 0 0 71 115 1 0
VCDI 0 0 0 0 8 56 629 458
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 117 966 15 74 33 0 0 0
OW 1 86 8 20 4 0 0 0
VODI 0 48 8 36 13 0 0 0
ODI 0 2 2 48 81 1 0 0
CDI 0 0 0 0 273 66 1 0
VCDI 0 0 0 0 33 110 629 458

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 764 2684 16 44 2 0 0 0
OW 0 167 51 227 12 0 0 0
VODI 0 8 7 373 259 0 15 0
ODI 0 0 0 31 767 18 26 0
CDI 0 0 0 6 220 606 87 0
VCDI 0 0 0 2 87 880 1904 719
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 751 2461 18 72 16 0 0 0
OW 13 299 31 153 32 0 0 0
VODI 0 99 25 307 190 2 0 0
ODI 0 0 0 89 501 21 0 0
CDI 0 0 0 26 294 270 23 0
VCDI 0 0 0 36 314 1211 2009 719

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4844 801 1 1 0 0 0 0
OW 0 4 1 1 0 0 0 0
VODI 0 0 0 1 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 4844 725 0 0 0 0 0 0
OW 0 76 1 0 0 0 0 0
VODI 0 4 1 3 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

Siberian Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1009 2682 14 23 0 0 0 0
OW 15 697 28 143 11 0 0 0
VODI 3 62 20 365 302 0 0 0
ODI 0 0 0 0 776 80 0 0
CDI 0 0 0 0 51 578 19 0
VCDI 0 0 0 0 0 154 214 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 614 2521 24 71 17 0 0 0
OW 336 507 18 164 75 7 0 0
VODI 73 413 20 283 434 78 0 0
ODI 4 0 0 13 461 132 9 0
CDI 0 0 0 0 153 307 39 0
VCDI 0 0 0 0 0 288 185 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 136 2445 21 82 0 0 0 0
OW 13 100 16 185 34 0 0 0
VODI 12 1 0 64 155 1 0 0
ODI 0 0 0 6 173 64 0 0
CDI 0 0 0 0 80 278 12 0
VCDI 0 0 0 0 27 478 943 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 133 2400 31 147 17 0 0 0
OW 10 142 6 143 84 1 0 0
VODI 18 4 0 36 171 91 0 0
ODI 0 0 0 10 72 91 10 0
CDI 0 0 0 1 91 122 16 0
VCDI 0 0 0 0 34 516 929 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 5119 1194 1 11 0 0 0 0
OW 0 6 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 5119 1192 1 11 0 0 0 0
OW 0 8 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

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10879 448 2 2 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 10879 448 2 2 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 7503 2444 11 120 89 0 0 0
OW 0 46 7 40 11 0 0 0
VODI 0 17 5 61 28 0 0 0
ODI 0 1 2 32 61 10 0 0
CDI 0 0 0 12 113 49 0 0
VCDI 0 0 0 0 56 851 127 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7503 2343 11 99 87 0 0 0
OW 0 80 4 43 17 0 0 0
VODI 0 55 3 43 35 0 0 0
ODI 0 24 4 28 38 10 0 0
CDI 0 6 3 46 74 43 0 0
VCDI 0 0 0 6 107 857 127 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 12988 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 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12988 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 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 4059 1250 16 77 49 0 0 0
OW 0 22 19 35 3 0 0 0
VODI 0 0 0 69 18 0 0 0
ODI 0 0 0 3 58 3 0 0
CDI 0 0 0 0 11 23 0 0
VCDI 0 0 0 0 6 80 2 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4059 1235 16 81 52 0 0 0
OW 0 37 15 29 3 0 0 0
VODI 0 0 4 65 19 0 0 0
ODI 0 0 0 9 49 2 0 0
CDI 0 0 0 0 16 20 0 0
VCDI 0 0 0 0 6 84 2 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 7432 1146 2 7 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 7432 1146 2 7 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

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 19862 335 4 8 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 19862 335 4 8 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


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