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: 2020-03-05

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-03-09

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 1 0 0
OW 0 0 0 0 0 13 1 0
VODI 0 0 0 0 0 9 9 0
ODI 0 0 0 0 0 6 29 0
CDI 0 0 0 0 0 1 66 0
VCDI 0 0 0 0 3 222 5467 31075
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 11 0 0
OW 0 0 0 0 0 10 3 0
VODI 0 0 0 0 0 6 25 0
ODI 0 0 0 0 0 2 34 0
CDI 0 0 0 0 0 1 57 0
VCDI 0 0 0 0 3 222 5453 31075

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 46 642 2445
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 46 642 2445

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 0 0 9982
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 0 0 9982

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 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 5654
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 0 0 5654

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 22
VCDI 0 0 0 0 0 0 0 7224
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

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 33
VCDI 0 0 0 0 0 0 0 5293
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 0 0 5326

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 16 8 0 0 0
CDI 0 0 1 28 78 22 18 1
VCDI 0 1 0 5 140 376 4123 1514
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 4 19 38 1
VCDI 0 1 1 49 222 379 4103 1514

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3019 3863 43 237 35 10 1 0
OW 0 125 19 198 76 7 1 0
VODI 0 69 16 169 174 16 9 0
ODI 0 12 2 71 190 50 10 0
CDI 0 17 2 42 115 102 15 0
VCDI 0 8 0 0 72 310 2226 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3019 3689 37 194 66 17 8 0
OW 0 212 12 161 40 15 6 0
VODI 0 103 18 169 110 25 13 0
ODI 0 48 6 91 142 31 18 0
CDI 0 24 7 41 177 68 40 0
VCDI 0 18 2 61 127 339 2177 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 4760 3419 18 120 55 19 0 0
OW 0 144 12 41 36 8 0 0
VODI 0 47 14 145 58 11 0 0
ODI 0 0 0 80 123 23 0 0
CDI 0 0 0 3 163 66 3 0
VCDI 0 0 0 0 81 458 1684 105
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4760 3510 28 161 72 22 0 0
OW 0 64 10 91 70 11 0 0
VODI 0 32 5 69 102 23 0 0
ODI 0 4 1 40 74 52 3 0
CDI 0 0 0 25 65 81 8 0
VCDI 0 0 0 3 133 396 1676 105

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8594 3129 30 91 81 6 0 0
OW 0 147 17 49 26 4 0 0
VODI 0 32 13 86 76 18 0 0
ODI 0 0 0 31 93 41 6 0
CDI 0 0 0 3 51 117 51 0
VCDI 0 0 0 0 22 67 107 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8594 3173 43 158 155 34 1 0
OW 0 76 5 15 48 32 11 0
VODI 0 45 6 30 29 52 28 0
ODI 0 13 3 17 31 22 43 0
CDI 0 1 3 36 29 73 79 0
VCDI 0 0 0 4 57 40 2 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 2 0 0 0 0 0 0
OW 0 2 2 7 0 0 0 0
VODI 0 0 0 20 8 0 0 0
ODI 0 0 0 17 12 7 0 0
CDI 0 0 0 26 24 17 0 0
VCDI 0 0 0 29 141 607 2802 2080
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1 1 0 0 0 0 0
OW 0 3 1 7 1 0 0 0
VODI 0 0 0 16 6 0 0 0
ODI 0 0 0 16 9 0 0 0
CDI 0 0 0 12 22 14 0 0
VCDI 0 0 0 48 147 617 2802 2080

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 18 18 3 2
VCDI 0 0 0 0 63 518 3430 4535
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 0 0 0
CDI 0 0 0 0 17 38 6 37
VCDI 0 0 0 0 63 498 3427 4500

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10842 4408 37 156 19 0 0 0
OW 2 140 23 187 85 0 0 0
VODI 0 86 16 264 315 22 0 0
ODI 0 6 0 45 363 122 0 0
CDI 0 0 0 0 260 529 11 0
VCDI 0 0 0 0 208 1287 721 55
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10844 4527 46 183 24 0 0 0
OW 0 80 26 246 124 1 0 0
VODI 0 30 3 153 282 78 0 0
ODI 0 3 1 53 248 176 0 0
CDI 0 0 0 17 301 398 4 0
VCDI 0 0 0 0 271 1307 728 55


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