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: 2019-05-02

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-05-06

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 12 48 9 0
OW 0 0 0 0 1 16 12 0
VODI 0 5 0 2 0 17 18 0
ODI 0 2 0 4 2 27 67 0
CDI 0 3 1 3 11 92 98 0
VCDI 0 0 1 3 46 890 7104 28408
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 13 64 21 0
OW 0 0 0 0 0 22 19 0
VODI 0 0 0 0 0 24 65 0
ODI 0 1 0 1 0 29 55 0
CDI 0 3 0 4 9 77 92 0
VCDI 0 6 2 7 50 874 7056 28408

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 13 46 2 0
VCDI 0 0 0 0 29 206 532 2305
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 9 42 9 0
VCDI 0 0 0 0 33 210 525 2305

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 31 1 0 0
ODI 0 0 0 1 65 32 0 0
CDI 0 0 0 0 170 311 59 0
VCDI 0 0 0 0 54 1055 4675 3528
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 36 36 0 0
CDI 0 0 0 1 126 123 74 0
VCDI 0 0 0 0 158 1240 4660 3528

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 223 24 222 90 0 0 0
OW 0 97 16 124 17 0 0 0
VODI 0 7 4 143 76 0 0 0
ODI 0 0 0 20 145 20 0 0
CDI 0 0 0 3 67 212 6 0
VCDI 0 0 0 0 30 284 2944 880
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 216 30 261 106 0 0 0
OW 0 75 8 77 17 0 0 0
VODI 0 33 5 108 57 0 0 0
ODI 0 3 1 44 111 42 0 0
CDI 0 0 0 22 86 234 205 0
VCDI 0 0 0 0 48 240 2745 880

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 2 3 0 0 0
ODI 0 0 0 1 12 0 0 0
CDI 0 0 0 0 72 23 3 0
VCDI 0 0 0 0 38 435 5199 1458
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 2 8 0 0 0
CDI 0 0 0 1 55 23 34 0
VCDI 0 0 0 0 62 435 5168 1458

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 6 1 0 0
VODI 0 0 0 53 52 3 2 0
ODI 0 0 0 34 42 8 16 0
CDI 0 0 0 81 53 21 54 28
VCDI 0 0 0 80 204 374 2155 2059
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 4 12 2 16 0
ODI 0 0 0 27 28 11 17 10
CDI 0 0 0 51 45 22 133 64
VCDI 0 0 0 166 272 372 2061 2013

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 9 6 86 1 0 0 0
VODI 0 0 0 41 48 1 0 0
ODI 0 0 0 16 67 23 1 0
CDI 0 0 0 21 118 185 41 0
VCDI 0 0 0 0 35 769 4108 755
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 1 0 0 0 0
VODI 0 5 2 33 0 0 0 0
ODI 0 4 4 72 25 20 0 0
CDI 0 0 0 44 101 121 77 0
VCDI 0 0 0 14 143 837 4073 755

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3663 3539 72 369 219 22 0 0
OW 0 27 9 112 105 33 0 0
VODI 0 14 2 131 177 60 0 0
ODI 0 11 1 29 135 76 0 0
CDI 0 10 1 9 125 195 4 0
VCDI 0 26 5 44 124 1198 784 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3663 3474 66 343 270 60 0 0
OW 0 74 6 66 105 49 0 0
VODI 0 18 8 110 83 108 3 0
ODI 0 5 2 97 112 85 13 0
CDI 0 7 0 23 112 149 28 0
VCDI 0 49 8 55 203 1133 744 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 5210 3233 40 163 42 0 0 0
OW 0 11 3 158 27 0 0 0
VODI 0 0 0 71 176 3 0 0
ODI 0 0 0 4 277 216 0 0
CDI 0 0 0 0 107 600 13 0
VCDI 0 0 0 0 0 423 919 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5210 3202 30 186 66 0 0 0
OW 0 42 13 117 54 7 0 0
VODI 0 0 0 79 233 69 0 0
ODI 0 0 0 13 153 285 0 0
CDI 0 0 0 1 111 372 24 0
VCDI 0 0 0 0 12 509 908 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 8631 3419 62 305 214 20 0 0
OW 0 0 0 20 89 11 1 0
VODI 0 0 0 0 61 26 0 0
ODI 0 0 0 0 21 61 0 0
CDI 0 0 0 0 0 44 3 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 8631 3419 62 322 306 26 0 0
OW 0 0 0 3 58 75 1 0
VODI 0 0 0 0 21 61 3 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 0 265 18 46 0 0 0 0
OW 0 26 7 106 4 0 0 0
VODI 0 0 0 97 94 0 0 0
ODI 0 0 0 23 191 16 0 0
CDI 0 0 0 30 373 698 43 0
VCDI 0 0 0 0 71 1272 2422 1
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 261 15 36 0 0 0 0
OW 0 21 7 80 3 0 0 0
VODI 0 9 3 82 60 0 0 0
ODI 0 0 0 46 117 14 0 0
CDI 0 0 0 31 301 383 89 0
VCDI 0 0 0 27 252 1589 2376 1

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 3 1 0 0 0
OW 0 2 1 79 15 0 0 0
VODI 0 0 0 36 11 1 0 0
ODI 0 0 0 15 78 26 3 0
CDI 0 0 0 34 237 438 62 0
VCDI 0 0 0 0 71 1120 6276 78
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 13 3 0 0 0
VODI 0 0 0 21 9 0 0 0
ODI 0 2 1 26 36 7 2 0
CDI 0 0 0 67 120 251 71 0
VCDI 0 0 0 40 245 1327 6268 78

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11567 5222 74 305 91 3 0 0
OW 0 4 6 122 203 56 11 0
VODI 0 0 0 23 232 75 19 0
ODI 0 0 0 0 219 230 11 0
CDI 0 0 0 0 37 526 239 0
VCDI 0 0 0 0 3 277 654 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11567 5225 76 408 249 46 0 0
OW 0 1 4 33 200 88 31 0
VODI 0 0 0 9 185 209 46 0
ODI 0 0 0 0 111 233 106 0
CDI 0 0 0 0 40 346 232 0
VCDI 0 0 0 0 0 245 519 0


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