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: 2019-04-25

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-04-29

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 0 0 3 30 38 0 0
OW 0 0 0 0 5 20 4 0
VODI 0 0 0 0 7 18 8 0
ODI 0 0 0 0 13 32 18 0
CDI 0 0 0 1 12 109 98 0
VCDI 0 0 0 0 35 481 5273 30697
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 33 48 3 0
OW 0 0 0 0 5 21 9 0
VODI 0 0 0 0 7 23 22 0
ODI 0 0 0 0 9 44 46 0
CDI 0 0 0 1 13 81 64 0
VCDI 0 0 0 0 35 481 5257 30697

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 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 8 1 0 0
VCDI 0 0 0 0 11 136 474 2503
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 0 0 0 0
CDI 0 0 0 0 5 0 0 0
VCDI 0 0 0 0 14 137 474 2503

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 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 3 29 6
VCDI 0 0 0 0 0 102 1526 8316
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 0 0 2 0
CDI 0 0 0 0 0 2 53 0
VCDI 0 0 0 0 0 103 1500 8322

Chuckchi 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 12 5 0 0 0
OW 0 11 7 107 62 6 0 0
VODI 0 0 1 110 103 0 0 0
ODI 0 0 0 42 237 4 0 0
CDI 0 0 0 3 162 167 0 0
VCDI 0 0 0 0 94 1187 2868 466
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 9 20 5 0 0
OW 0 0 0 33 43 1 0 0
VODI 0 0 5 54 70 0 0 0
ODI 0 11 3 83 124 13 0 0
CDI 0 0 0 73 200 95 0 0
VCDI 0 0 0 22 206 1250 2868 466

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 0 7 2 0 0
CDI 0 0 0 0 22 76 5 7
VCDI 0 0 0 0 3 402 4370 2352
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 1 1 0 0
ODI 0 0 0 0 8 15 4 0
CDI 0 0 0 0 15 105 153 32
VCDI 0 0 0 0 8 359 4218 2327

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 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 3 2 0 0
ODI 0 0 0 0 28 31 0 0
CDI 0 0 0 0 48 33 35 0
VCDI 0 0 0 0 60 388 2312 2386
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 7 14 1 0
CDI 0 0 0 0 33 33 36 0
VCDI 0 0 0 0 99 407 2310 2386

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 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 28 0 0 0
ODI 0 0 0 0 121 68 0 0
CDI 0 0 0 0 17 207 38 0
VCDI 0 0 0 0 16 311 4105 1420
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 17 0 0 0
VODI 0 0 0 0 87 28 0 0
ODI 0 0 0 0 31 91 2 0
CDI 0 0 0 0 31 131 71 0
VCDI 0 0 0 0 16 336 4070 1420

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3466 3766 70 386 275 45 0 0
OW 0 77 16 102 82 43 1 0
VODI 0 3 0 73 127 68 3 0
ODI 0 0 0 9 158 80 4 0
CDI 0 0 0 15 110 266 17 0
VCDI 0 0 0 15 66 721 1267 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3466 3726 71 379 315 78 0 0
OW 0 101 11 81 54 68 2 0
VODI 0 19 4 88 98 70 8 0
ODI 0 0 0 17 119 83 9 0
CDI 0 0 0 17 131 193 28 0
VCDI 0 0 0 18 101 731 1245 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 5580 2891 40 180 1 0 0 0
OW 0 17 6 188 28 0 0 0
VODI 0 0 0 77 190 2 0 0
ODI 0 0 0 3 229 183 0 0
CDI 0 0 0 0 97 773 63 0
VCDI 0 0 0 0 17 371 760 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5580 2873 35 224 4 0 0 0
OW 0 34 9 168 96 2 0 0
VODI 0 1 2 51 218 71 0 0
ODI 0 0 0 5 113 209 0 0
CDI 0 0 0 0 115 654 78 0
VCDI 0 0 0 0 16 393 745 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 8843 3402 58 169 117 33 0 0
OW 0 6 7 59 35 13 0 0
VODI 0 0 0 5 97 43 2 0
ODI 0 0 0 0 26 68 3 0
CDI 0 0 0 0 0 1 1 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 8843 3406 63 198 194 55 0 0
OW 0 2 2 31 45 58 2 0
VODI 0 0 0 4 32 38 4 0
ODI 0 0 0 0 4 7 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 0 43 4 26 7 1 0 0
OW 0 4 2 75 7 1 0 0
VODI 0 0 0 56 80 6 0 0
ODI 0 0 0 0 82 13 0 0
CDI 0 0 0 0 72 163 44 0
VCDI 0 0 0 0 36 1160 3313 608
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 31 2 9 8 3 0 0
OW 0 12 2 34 7 5 0 0
VODI 0 4 2 63 8 10 0 0
ODI 0 0 0 48 52 12 0 0
CDI 0 0 0 3 147 112 72 0
VCDI 0 0 0 0 62 1202 3285 608

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 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 5 1 0 0
ODI 0 0 0 0 30 70 3 0
CDI 0 0 0 0 34 315 69 0
VCDI 0 0 0 0 127 1298 5560 1075
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 0 73 5 0
CDI 0 0 0 0 13 296 93 0
VCDI 0 0 0 0 183 1315 5534 1075

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11507 4704 90 448 185 4 0 0
OW 0 0 2 137 279 19 0 0
VODI 0 0 0 49 357 79 0 0
ODI 0 0 0 0 241 187 5 0
CDI 0 0 0 0 81 611 76 0
VCDI 0 0 0 0 18 452 678 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11507 4700 88 547 451 34 0 0
OW 0 4 4 56 237 60 0 0
VODI 0 0 0 15 217 139 4 0
ODI 0 0 0 10 115 231 26 0
CDI 0 0 0 6 93 447 106 0
VCDI 0 0 0 0 48 441 623 0


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