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: 2020-03-26

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-03-30

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 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 1 0
ODI 0 0 0 0 0 0 5 0
CDI 0 0 0 0 0 26 51 0
VCDI 0 0 0 0 0 422 4672 31725
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 0 0 15 0
CDI 0 0 0 0 0 9 59 0
VCDI 0 0 0 0 0 439 4650 31725

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 0
VCDI 0 0 0 0 0 64 411 2658
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 0
VCDI 0 0 0 0 0 64 411 2658

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 0 0 0
VCDI 0 0 0 0 0 7 474 9501
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 0
VCDI 0 0 0 0 0 7 474 9501

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 0 0
ODI 0 0 0 0 1 14 6 0
CDI 0 0 0 0 26 73 68 0
VCDI 0 0 0 0 16 442 3198 1810
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 13 4 0
CDI 0 0 0 0 10 62 45 0
VCDI 0 0 0 0 33 454 3223 1810

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 12 20 45 1
CDI 0 0 0 0 13 77 65 9
VCDI 0 0 0 0 9 394 2258 4343
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 19 63 6
CDI 0 0 0 0 20 57 78 51
VCDI 0 0 0 0 7 415 2227 4296

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 3 3 0
VCDI 0 0 0 0 0 74 979 4267
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 5 0
VCDI 0 0 0 0 0 77 977 4267

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 3 19 1 0 0
ODI 0 0 0 0 89 88 0 0
CDI 0 0 0 0 25 146 73 2
VCDI 0 0 0 0 4 286 3088 2507
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 7 5 0 0
ODI 0 0 0 1 46 29 0 1
CDI 0 0 0 0 65 98 19 31
VCDI 0 0 0 0 19 389 3142 2477

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2620 3837 50 238 151 50 0 0
OW 0 114 17 142 137 40 0 0
VODI 0 17 0 65 222 65 2 0
ODI 0 0 0 7 109 103 11 0
CDI 0 0 0 13 68 291 61 0
VCDI 0 0 0 0 23 621 2257 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2620 3837 52 250 139 63 0 0
OW 0 114 9 81 105 39 0 0
VODI 0 16 6 96 184 62 9 0
ODI 0 1 0 21 129 71 14 0
CDI 0 0 0 2 82 202 43 0
VCDI 0 0 0 15 71 733 2265 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 4317 3317 31 252 60 24 19 0
OW 0 42 12 100 61 18 6 0
VODI 0 9 6 59 172 35 18 0
ODI 0 1 1 14 149 70 12 0
CDI 0 0 0 0 90 231 49 0
VCDI 0 0 0 0 9 642 1820 50
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4317 3289 38 284 81 30 21 0
OW 0 48 2 71 81 32 13 0
VODI 0 27 3 31 122 32 18 0
ODI 0 4 7 19 116 52 14 0
CDI 0 1 0 18 111 162 21 0
VCDI 0 0 0 2 30 712 1837 50

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8103 3345 52 239 194 8 0 0
OW 0 53 11 177 127 0 0 0
VODI 0 0 0 67 178 1 0 0
ODI 0 0 0 20 220 47 0 0
CDI 0 0 0 0 82 64 0 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 8103 3372 56 320 278 8 0 0
OW 0 26 7 77 132 0 0 0
VODI 0 0 0 52 135 32 0 0
ODI 0 0 0 30 131 40 0 0
CDI 0 0 0 24 121 40 0 0
VCDI 0 0 0 0 4 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 48 3 9 0 0 0 0
OW 0 25 5 24 0 0 0 0
VODI 0 7 5 25 37 0 0 0
ODI 0 1 1 14 52 6 0 0
CDI 0 0 0 43 22 44 6 0
VCDI 0 0 0 1 95 377 3367 1586
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 30 4 19 2 0 0 0
OW 0 20 1 15 15 0 0 0
VODI 0 19 3 8 27 15 0 0
ODI 0 8 2 9 16 19 1 0
CDI 0 4 4 14 21 13 17 0
VCDI 0 0 0 51 125 380 3355 1586

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 2 0 0
CDI 0 0 0 0 0 109 6 27
VCDI 0 0 0 0 19 490 3463 4471
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 68 1 31
VCDI 0 0 0 0 19 533 3468 4467

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10773 4624 47 265 69 0 0 0
OW 0 107 35 316 118 4 0 0
VODI 0 11 2 233 630 67 0 0
ODI 0 0 0 3 626 236 1 0
CDI 0 0 0 0 190 532 35 0
VCDI 0 0 0 0 95 759 431 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10773 4722 79 684 365 8 0 0
OW 0 20 5 119 499 79 0 0
VODI 0 0 0 14 242 263 3 0
ODI 0 0 0 0 187 94 12 0
CDI 0 0 0 0 231 268 20 0
VCDI 0 0 0 0 204 886 432 0


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