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: 2019-04-04

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-04-08

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 0 41 57 35 0
OW 0 0 0 0 6 9 25 0
VODI 0 0 0 4 5 13 28 0
ODI 0 0 0 32 8 17 45 0
CDI 0 0 0 4 35 35 120 0
VCDI 0 0 0 0 71 273 6311 29728
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 44 63 52 0
OW 0 0 0 0 5 10 34 0
VODI 0 0 0 0 6 14 43 0
ODI 0 0 0 0 3 16 54 0
CDI 0 0 0 22 0 35 131 0
VCDI 0 0 0 18 108 266 6250 29728

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 1 0 0
CDI 0 0 0 0 0 30 1 0
VCDI 0 0 0 0 0 43 505 2553
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 9 1 0
VCDI 0 0 0 0 0 65 505 2553

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 11 27 14
VCDI 0 0 0 0 0 24 1027 8879
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 11 24 37
VCDI 0 0 0 0 0 24 1030 8856

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 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 1 0 0 0
ODI 0 0 0 0 72 7 0 0
CDI 0 0 0 0 117 241 1 0
VCDI 0 0 0 0 0 383 1948 2884
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 2 0 0 0
ODI 0 0 0 0 75 5 0 0
CDI 0 0 0 0 69 136 0 0
VCDI 0 0 0 0 44 490 1949 2884

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 0 0 1 0
CDI 0 0 0 0 0 2 23 11
VCDI 0 0 0 0 0 29 970 6210
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 0 4 14
VCDI 0 0 0 0 0 31 990 6207

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 0 18 4 0
ODI 0 0 0 0 13 91 20 0
CDI 0 0 0 0 33 166 152 5
VCDI 0 0 0 0 16 215 2563 2030
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 12 3 0
ODI 0 0 0 0 4 58 32 0
CDI 0 0 0 0 29 140 118 0
VCDI 0 0 0 0 29 280 2586 2035

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 39 4 8 0 0 0 0
OW 0 40 6 54 3 0 0 0
VODI 0 5 2 89 135 28 0 0
ODI 0 0 1 17 213 129 6 0
CDI 0 0 0 0 85 296 190 0
VCDI 0 0 0 0 31 245 3499 1206
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 31 4 32 5 0 0 0
OW 0 32 2 29 17 0 0 0
VODI 0 20 6 77 153 32 0 0
ODI 0 1 0 15 87 205 38 0
CDI 0 0 1 15 74 136 264 9
VCDI 0 0 0 0 131 325 3393 1197

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3243 3969 83 401 133 3 0 0
OW 0 67 14 134 153 8 0 0
VODI 0 33 10 121 184 49 0 0
ODI 0 0 1 32 167 97 0 0
CDI 0 0 0 3 127 347 14 0
VCDI 0 0 0 0 46 813 1079 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3243 3988 85 454 196 8 0 0
OW 0 42 11 98 113 20 0 0
VODI 0 32 11 77 150 41 0 0
ODI 0 7 0 34 122 71 1 0
CDI 0 0 1 17 122 307 10 0
VCDI 0 0 0 11 107 870 1082 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 4795 3330 27 186 42 0 0 0
OW 0 68 11 95 38 0 0 0
VODI 0 4 4 94 125 0 0 0
ODI 0 0 0 23 154 18 0 0
CDI 0 0 0 7 126 284 39 0
VCDI 0 0 0 0 43 398 1785 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4795 3278 27 195 46 0 0 0
OW 0 89 2 69 45 0 0 0
VODI 0 33 10 52 95 0 0 0
ODI 0 2 3 54 94 12 0 0
CDI 0 0 0 35 175 248 92 0
VCDI 0 0 0 0 73 440 1732 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 8221 3443 47 110 58 15 0 0
OW 0 58 21 142 23 10 0 0
VODI 0 0 0 52 136 3 1 0
ODI 0 0 0 0 165 38 3 0
CDI 0 0 0 0 46 306 85 0
VCDI 0 0 0 0 0 3 2 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8221 3501 65 256 113 20 0 0
OW 0 0 3 41 108 14 0 0
VODI 0 0 0 7 113 52 2 0
ODI 0 0 0 0 62 96 47 0
CDI 0 0 0 0 32 188 42 0
VCDI 0 0 0 0 0 5 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 87 6 20 1 0 0 0
OW 0 9 3 41 9 0 0 0
VODI 0 0 0 43 45 0 0 0
ODI 0 0 0 2 102 14 0 0
CDI 0 0 0 0 79 81 92 4
VCDI 0 0 0 0 38 492 3046 1589
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 93 6 32 6 0 0 0
OW 0 3 3 28 19 0 0 0
VODI 0 0 0 29 40 6 0 0
ODI 0 0 0 16 53 25 1 0
CDI 0 0 0 1 79 47 153 1
VCDI 0 0 0 0 77 509 2984 1592

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 0 0 0 0
ODI 0 0 0 0 22 1 1 0
CDI 0 0 0 0 21 51 83 0
VCDI 0 0 0 0 38 398 3530 4442
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 16 0 0 0
CDI 0 0 0 0 20 24 58 0
VCDI 0 0 0 0 45 426 3556 4442

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10583 5201 84 430 16 0 0 0
OW 0 210 39 203 58 0 0 0
VODI 0 22 11 196 382 8 0 0
ODI 0 0 0 28 436 139 0 0
CDI 0 0 0 0 77 471 88 0
VCDI 0 0 0 0 1 377 1149 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10583 5190 99 494 22 0 0 0
OW 0 243 33 266 169 0 0 0
VODI 0 0 2 97 467 19 0 0
ODI 0 0 0 0 246 162 1 0
CDI 0 0 0 0 58 375 78 0
VCDI 0 0 0 0 8 439 1158 0


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