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: 2019-05-30

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-06-03

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 44 1 11 42 29 0 0
OW 0 24 6 18 14 20 0 0
VODI 0 16 10 50 26 36 0 0
ODI 0 4 5 30 73 29 37 0
CDI 0 0 0 19 209 570 209 0
VCDI 0 0 0 0 0 1338 10166 23866
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 38 1 12 48 69 1 0
OW 0 18 0 13 17 34 13 0
VODI 0 12 9 19 29 32 103 0
ODI 0 11 7 32 34 39 80 0
CDI 0 9 5 52 208 436 303 0
VCDI 0 0 0 0 28 1412 9912 23866

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 0 235 5 4 0 1 0 0
OW 0 0 0 0 2 2 2 0
VODI 0 0 0 0 0 0 4 0
ODI 0 0 0 0 7 0 0 0
CDI 0 0 0 0 11 90 51 0
VCDI 0 0 0 0 0 133 1398 1188
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 235 5 4 2 3 3 0
OW 0 0 0 0 0 0 3 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 10 6 2 0
CDI 0 0 0 0 8 96 146 0
VCDI 0 0 0 0 0 121 1301 1188

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2 1360 26 211 30 0 0 0
OW 0 127 22 226 18 0 0 0
VODI 0 49 10 276 171 0 0 0
ODI 0 6 4 92 638 24 0 0
CDI 0 0 0 27 504 1050 82 0
VCDI 0 0 0 0 0 464 3569 994
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2 1354 27 297 43 0 0 0
OW 0 82 14 202 121 0 0 0
VODI 0 51 8 147 363 0 0 0
ODI 0 28 7 89 250 49 0 0
CDI 0 22 4 63 526 914 85 0
VCDI 0 5 2 34 58 575 3566 994

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 85 1366 9 10 0 0 0 0
OW 5 233 18 35 1 0 0 0
VODI 0 69 22 99 44 0 0 0
ODI 0 14 8 60 78 6 0 0
CDI 0 2 2 55 159 138 8 0
VCDI 0 0 0 1 50 197 2323 557
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 85 1332 11 15 0 0 0 0
OW 5 141 8 31 1 0 0 0
VODI 0 114 8 47 24 0 0 0
ODI 0 64 19 43 57 13 0 0
CDI 0 26 11 87 156 157 173 0
VCDI 0 7 2 37 94 171 2158 557

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 3 0 0 0 0
ODI 0 0 0 9 5 2 0 0
CDI 0 1 3 41 145 193 22 0
VCDI 0 0 0 6 186 354 4677 1599
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 4 1 2 0
CDI 0 1 3 47 34 91 234 0
VCDI 0 0 0 6 298 457 4463 1599

Laptev Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 176 4 6 0 0 0 0
OW 0 156 6 25 11 0 0 0
VODI 0 102 9 58 41 9 15 0
ODI 0 77 15 64 99 11 22 0
CDI 0 25 9 83 205 139 103 0
VCDI 0 0 0 0 128 709 2986 33
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 136 4 8 2 0 0 0
OW 0 34 2 20 2 1 6 0
VODI 0 40 5 21 17 9 51 0
ODI 0 38 4 17 48 17 73 0
CDI 0 174 16 103 121 65 221 0
VCDI 0 114 12 67 294 776 2775 33

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 442 23 69 15 2 0 0
OW 0 108 23 226 42 10 1 0
VODI 0 44 12 326 310 23 3 0
ODI 0 1 2 73 715 128 16 0
CDI 0 0 0 15 402 1845 154 0
VCDI 0 0 0 0 1 383 917 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 417 33 184 63 9 0 0
OW 0 58 9 128 192 22 4 0
VODI 0 70 7 207 299 114 15 0
ODI 0 35 5 108 415 404 87 0
CDI 0 15 6 82 516 1409 610 0
VCDI 0 0 0 0 0 433 375 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 6096 3335 59 329 6 0 0 0
OW 0 75 29 143 28 0 0 0
VODI 0 1 7 100 108 4 0 0
ODI 0 0 0 4 196 58 0 0
CDI 0 0 0 0 20 316 146 0
VCDI 0 0 0 0 0 12 259 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6096 3290 69 374 19 0 0 0
OW 0 96 14 130 68 3 0 0
VODI 0 22 9 48 162 17 4 0
ODI 0 3 3 19 66 139 17 0
CDI 0 0 0 5 43 216 228 0
VCDI 0 0 0 0 0 15 156 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 5905 2948 20 76 27 0 0 0
OW 0 45 11 105 31 0 0 0
VODI 0 0 0 97 78 15 3 0
ODI 0 0 0 0 205 45 7 0
CDI 0 0 0 3 228 586 381 0
VCDI 0 0 0 0 0 39 841 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5905 2970 27 145 67 5 0 0
OW 0 23 4 92 40 21 0 0
VODI 0 0 0 41 149 96 96 0
ODI 0 0 0 0 125 195 254 0
CDI 0 0 0 3 188 368 646 0
VCDI 0 0 0 0 0 0 236 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 8881 3320 40 198 109 24 0 0
OW 0 7 4 31 48 4 0 0
VODI 0 0 0 15 59 12 0 0
ODI 0 0 0 0 57 23 1 0
CDI 0 0 0 0 10 116 29 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 8881 3322 40 208 152 39 0 0
OW 0 5 4 29 57 26 5 0
VODI 0 0 0 7 61 22 17 0
ODI 0 0 0 0 13 79 6 0
CDI 0 0 0 0 0 13 2 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 1625 55 448 64 1 0 0
OW 0 20 13 213 101 2 0 0
VODI 0 0 0 94 240 11 0 0
ODI 0 0 0 0 402 129 1 0
CDI 0 0 0 0 34 1201 241 0
VCDI 0 0 0 0 0 145 763 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1638 63 621 213 2 0 0
OW 0 7 5 109 197 16 0 0
VODI 0 0 0 25 300 117 0 0
ODI 0 0 0 0 113 309 1 0
CDI 0 0 0 0 18 960 634 0
VCDI 0 0 0 0 0 85 370 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 0 180 19 222 194 49 0 0
OW 0 32 7 191 131 15 1 0
VODI 0 0 1 154 525 39 3 0
ODI 0 0 0 15 870 323 10 0
CDI 0 22 5 86 185 744 278 0
VCDI 0 0 0 1 44 660 3150 431
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 205 25 327 334 83 1 0
OW 0 5 1 117 333 62 1 0
VODI 0 2 1 103 685 208 37 0
ODI 0 0 0 16 286 301 182 0
CDI 0 14 3 69 239 442 511 0
VCDI 0 8 2 37 72 734 2710 431

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14156 3942 75 443 60 6 0 0
OW 0 62 16 161 86 26 0 0
VODI 0 0 2 87 161 16 0 0
ODI 0 0 0 8 170 28 1 0
CDI 0 0 0 0 4 334 56 0
VCDI 0 0 0 0 0 43 266 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14156 3957 88 592 136 31 0 0
OW 0 47 5 81 126 6 0 0
VODI 0 0 0 25 159 28 0 0
ODI 0 0 0 1 59 97 1 0
CDI 0 0 0 0 1 273 219 0
VCDI 0 0 0 0 0 18 103 0


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