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: 2019-01-24

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-01-28

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 0 165 1 16 9 0 0 0
OW 0 55 2 16 9 3 0 0
VODI 0 34 4 20 20 7 0 0
ODI 0 5 10 24 29 16 2 0
CDI 0 0 0 54 78 17 8 0
VCDI 0 0 0 7 136 438 4501 31216
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 133 1 12 9 0 0 0
OW 0 34 0 6 8 3 0 0
VODI 0 44 3 15 8 9 0 0
ODI 0 23 2 17 14 8 4 0
CDI 0 18 1 15 18 16 10 0
VCDI 0 7 10 72 224 445 4497 31216

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 0 0 0 2
VCDI 0 0 0 0 0 127 1499 1505
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 0 2
VCDI 0 0 0 0 0 127 1499 1505

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 3 0 0
CDI 0 0 0 0 2 58 3 10
VCDI 0 0 0 0 1 327 2347 7231
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 3 0 0
CDI 0 0 0 0 2 55 6 11
VCDI 0 0 0 0 1 330 2344 7230

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 0 0 5 0
ODI 0 0 0 0 3 20 10 0
CDI 0 0 0 0 19 75 18 0
VCDI 0 0 0 0 7 276 1912 3309
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 3 0
VODI 0 0 0 0 0 0 13 0
ODI 0 0 0 0 1 3 22 0
CDI 0 0 0 0 17 68 18 0
VCDI 0 0 0 0 11 300 1889 3309

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 0 0
CDI 0 0 0 0 0 0 0 13
VCDI 0 0 0 0 0 0 0 7233
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 0 11
VCDI 0 0 0 0 0 0 0 7235

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 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 6
VCDI 0 0 0 0 0 20 384 4916
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 0 8
VCDI 0 0 0 0 0 20 384 4914

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 57 2 1 0 0 0 0
OW 0 9 1 5 5 0 0 0
VODI 0 5 0 15 10 0 0 0
ODI 0 3 1 5 16 4 0 0
CDI 0 0 0 5 21 45 62 0
VCDI 0 0 0 0 4 111 2360 3584
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 57 3 4 1 0 0 0
OW 0 6 0 9 5 0 0 0
VODI 0 5 0 8 5 0 0 0
ODI 0 4 0 3 11 1 0 0
CDI 0 2 1 3 15 23 30 0
VCDI 0 0 0 4 19 136 2392 3584

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4374 3641 42 170 26 0 0 0
OW 0 95 18 154 82 11 0 0
VODI 0 25 6 61 158 52 0 0
ODI 0 5 2 12 131 76 0 0
CDI 0 0 0 9 96 222 26 0
VCDI 0 0 0 0 6 364 1467 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4374 3472 43 210 54 2 0 0
OW 0 180 13 71 99 8 0 0
VODI 0 92 8 90 144 35 0 0
ODI 0 13 1 17 89 93 0 0
CDI 0 7 3 9 53 221 32 0
VCDI 0 2 0 9 60 366 1461 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 6150 2813 9 11 0 0 0 0
OW 0 145 9 48 6 0 0 0
VODI 0 43 11 120 43 1 0 0
ODI 0 5 0 58 85 7 0 0
CDI 0 0 0 16 152 45 0 0
VCDI 0 0 0 0 42 391 1435 51
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6150 2661 11 20 1 0 0 0
OW 0 161 4 35 9 0 0 0
VODI 0 110 5 69 21 0 0 0
ODI 0 57 6 54 44 6 0 0
CDI 0 17 3 50 99 16 0 0
VCDI 0 0 0 25 154 422 1435 51

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8421 3151 27 119 63 34 1 0
OW 0 174 9 25 21 19 13 0
VODI 0 76 21 97 19 27 26 0
ODI 0 0 2 54 111 21 17 0
CDI 0 0 0 4 108 202 23 0
VCDI 0 0 0 0 2 79 22 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8421 3239 40 151 91 66 35 0
OW 0 101 6 52 23 21 20 0
VODI 0 47 5 38 73 52 6 0
ODI 0 13 5 28 47 62 5 0
CDI 0 1 3 30 47 97 32 0
VCDI 0 0 0 0 43 84 4 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 67 1 2 0 0 0 0
OW 0 11 4 5 1 0 0 0
VODI 0 7 1 11 4 0 0 0
ODI 0 0 0 12 10 0 0 0
CDI 0 0 0 8 74 7 0 0
VCDI 0 0 0 1 95 354 2534 2594
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 59 1 1 0 0 0 0
OW 0 10 2 5 0 0 0 0
VODI 0 10 2 6 1 0 0 0
ODI 0 5 1 7 6 0 0 0
CDI 0 1 0 11 24 2 0 0
VCDI 0 0 0 9 153 359 2534 2594

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 0 0 0 0
CDI 0 0 0 0 7 2 6 8
VCDI 0 0 0 0 31 399 3060 5074
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 8 17 10
VCDI 0 0 0 0 30 393 3049 5072

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11166 4311 58 285 33 0 0 0
OW 0 99 19 171 133 0 0 0
VODI 0 25 11 164 305 6 0 0
ODI 0 0 0 10 344 49 0 0
CDI 0 0 0 0 291 307 0 0
VCDI 0 0 0 0 292 1418 670 42
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11166 4282 59 308 46 0 0 0
OW 0 99 15 136 114 0 0 0
VODI 0 54 11 122 255 10 0 0
ODI 0 0 3 56 313 54 0 0
CDI 0 0 0 8 324 313 0 0
VCDI 0 0 0 0 346 1403 670 42


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