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: 2018-04-12

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-04-16

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 0 304 12 79 8 0 0 0
OW 0 11 2 53 22 0 0 0
VODI 0 0 2 30 69 0 0 0
ODI 0 0 0 7 77 13 0 0
CDI 0 0 0 0 58 81 7 0
VCDI 0 0 0 0 21 512 5419 30115
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 294 12 81 10 0 0 0
OW 0 13 0 41 21 0 0 0
VODI 0 8 2 24 50 0 0 0
ODI 0 0 2 16 55 9 0 0
CDI 0 0 0 7 71 64 8 0
VCDI 0 0 0 0 48 533 5418 30115

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 18 0 0
VCDI 0 0 0 0 0 6 272 2837
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 7 0 0
VCDI 0 0 0 0 0 17 272 2837

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 1
CDI 0 0 0 0 0 0 0 56
VCDI 0 0 0 0 0 6 527 9392
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 6 527 9449

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 6 0 0 0
VODI 0 0 0 9 86 20 0 0
ODI 0 0 0 0 69 34 0 0
CDI 0 0 0 0 46 87 2 0
VCDI 0 0 0 0 21 301 2462 2511
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 0 0 0
VODI 0 0 0 8 46 12 0 0
ODI 0 0 0 0 46 29 0 0
CDI 0 0 0 1 60 54 1 0
VCDI 0 0 0 0 70 347 2463 2511

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 1 1 0 0
CDI 0 0 0 0 5 10 7 20
VCDI 0 0 0 0 8 67 2174 4953
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 1 0 0
CDI 0 0 0 0 4 10 8 26
VCDI 0 0 0 0 9 67 2173 4947

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 2 0
ODI 0 0 0 0 2 49 19 0
CDI 0 0 0 0 2 141 50 0
VCDI 0 0 0 0 11 316 3134 1600
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 2 45 20 0
CDI 0 0 0 0 2 111 58 1
VCDI 0 0 0 0 11 350 3127 1599

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 0 0 0 0
ODI 0 0 0 0 0 5 0 0
CDI 0 0 0 0 0 54 17 0
VCDI 0 0 0 0 0 485 4725 1045
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 43 10 0
VCDI 0 0 0 0 0 499 4732 1045

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3398 3249 38 199 61 2 0 0
OW 4 192 12 129 96 4 0 0
VODI 3 82 16 146 288 38 0 0
ODI 0 0 0 6 222 103 2 0
CDI 0 0 0 0 112 498 28 0
VCDI 0 0 0 0 17 771 1615 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3398 3357 38 231 86 4 0 0
OW 3 117 20 103 80 16 0 0
VODI 4 48 7 100 160 42 0 0
ODI 0 1 1 43 196 78 2 0
CDI 0 0 0 3 179 243 14 0
VCDI 0 0 0 0 95 1033 1629 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 5433 3335 17 71 14 0 0 0
OW 0 61 13 123 39 0 0 0
VODI 0 0 1 76 156 9 0 0
ODI 0 0 0 1 143 59 0 0
CDI 0 0 0 0 56 566 91 0
VCDI 0 0 0 0 0 210 1148 74
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5433 3328 15 84 34 0 0 0
OW 0 58 13 69 60 3 0 0
VODI 0 10 3 84 80 24 0 0
ODI 0 0 0 33 103 65 0 0
CDI 0 0 0 1 122 389 20 0
VCDI 0 0 0 0 9 363 1219 74

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8629 3285 47 166 146 7 0 0
OW 0 90 19 79 73 16 0 0
VODI 0 2 2 61 106 35 0 0
ODI 0 0 0 0 71 51 8 0
CDI 0 0 0 0 3 39 49 0
VCDI 0 0 0 0 0 0 4 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8629 3356 54 228 220 45 1 0
OW 0 21 11 40 48 27 14 0
VODI 0 0 3 38 67 28 26 0
ODI 0 0 0 0 55 36 12 0
CDI 0 0 0 0 9 12 8 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 0 1 10 0 0 0 0
OW 0 0 0 14 0 0 0 0
VODI 0 0 0 5 11 0 0 0
ODI 0 0 0 0 25 17 0 0
CDI 0 0 0 0 47 64 5 0
VCDI 0 0 0 0 56 590 3238 1720
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 1 6 0 0 0 0
OW 0 0 0 8 0 0 0 0
VODI 0 0 0 11 0 0 0 0
ODI 0 0 0 4 4 0 0 0
CDI 0 0 0 0 30 32 10 0
VCDI 0 0 0 0 105 639 3233 1720

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 1 0 0 0
ODI 0 0 0 0 39 37 15 0
CDI 0 0 0 0 58 109 52 50
VCDI 0 0 0 0 34 484 2971 4737
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 21 28 12 0
CDI 0 0 0 0 50 73 51 29
VCDI 0 0 0 0 61 529 2975 4758

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10276 5195 51 224 115 14 0 0
OW 0 133 31 226 132 32 0 0
VODI 0 40 14 233 389 68 0 0
ODI 0 0 0 20 347 141 10 0
CDI 0 0 0 0 168 457 49 0
VCDI 0 0 0 0 57 648 1139 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10276 5288 80 437 254 51 0 0
OW 0 57 11 183 239 64 0 0
VODI 0 23 5 80 369 117 7 0
ODI 0 0 0 3 158 169 13 0
CDI 0 0 0 0 100 294 55 0
VCDI 0 0 0 0 88 665 1123 0


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