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: 2019-04-11

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-04-15

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 3 53 44 4 0
OW 0 0 0 0 6 21 6 0
VODI 0 0 0 0 3 20 18 0
ODI 0 0 0 0 5 17 25 0
CDI 0 0 0 0 5 46 102 0
VCDI 0 0 0 0 0 90 3210 33224
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 57 55 9 0
OW 0 0 0 0 3 23 15 0
VODI 0 0 0 0 5 17 31 0
ODI 0 0 0 0 5 13 43 0
CDI 0 0 0 0 2 33 94 0
VCDI 0 0 0 0 0 97 3173 33224

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 5 39 4 0
VCDI 0 0 0 0 0 62 492 2531
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 1 0
VCDI 0 0 0 0 5 83 495 2531

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 9 15 0 0
CDI 0 0 0 0 18 56 18 26
VCDI 0 0 0 0 17 296 1984 7543
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 5 0 0
CDI 0 0 0 0 14 48 23 38
VCDI 0 0 0 0 29 314 1979 7531

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 20 6 0 0
ODI 0 0 0 0 28 37 0 0
CDI 0 0 0 0 13 118 0 0
VCDI 0 0 0 0 2 473 1750 3207
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 1 0 0 0
VODI 0 0 0 0 13 0 0 0
ODI 0 0 0 0 25 3 0 0
CDI 0 0 0 0 9 51 0 0
VCDI 0 0 0 0 15 580 1750 3207

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 6 26
VCDI 0 0 0 0 0 4 659 6551
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 14
VCDI 0 0 0 0 0 4 665 6563

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 2 0
CDI 0 0 0 0 0 14 99 0
VCDI 0 0 0 0 0 55 2225 2931
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 1 2 0
VCDI 0 0 0 0 0 68 2324 2931

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 47 4 0 0
ODI 0 0 0 0 93 90 0 0
CDI 0 0 0 0 15 182 106 25
VCDI 0 0 0 0 7 196 2844 2722
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 2 0 0 0
VODI 0 0 0 0 51 4 0 0
ODI 0 0 0 0 64 40 0 0
CDI 0 0 0 0 23 163 69 27
VCDI 0 0 0 0 22 265 2881 2720

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3287 3877 89 375 148 4 0 0
OW 0 105 21 155 103 16 0 0
VODI 0 21 4 99 250 50 0 0
ODI 0 0 0 4 221 83 0 0
CDI 0 0 0 0 60 280 1 0
VCDI 0 0 0 0 6 682 1390 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3287 3909 95 432 221 11 0 0
OW 0 79 12 111 113 44 0 0
VODI 0 13 7 83 163 66 0 0
ODI 0 2 0 7 177 87 0 0
CDI 0 0 0 0 104 225 2 0
VCDI 0 0 0 0 10 682 1389 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 4991 3097 33 215 29 0 0 0
OW 0 25 8 204 53 0 0 0
VODI 0 0 0 75 256 8 0 0
ODI 0 0 0 2 172 119 0 0
CDI 0 0 0 0 191 665 0 0
VCDI 0 0 0 0 25 551 971 6
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4991 3108 35 275 50 0 0 0
OW 0 14 6 117 68 1 0 0
VODI 0 0 0 77 130 18 0 0
ODI 0 0 0 24 147 44 0 0
CDI 0 0 0 3 188 363 2 0
VCDI 0 0 0 0 143 917 969 6

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8669 3358 42 106 51 26 0 0
OW 0 33 23 130 13 1 0 0
VODI 0 3 0 65 137 0 0 0
ODI 0 0 0 0 177 60 5 0
CDI 0 0 0 0 5 66 14 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 8669 3379 59 209 87 27 0 0
OW 0 15 5 49 74 0 0 0
VODI 0 0 1 36 123 14 1 0
ODI 0 0 0 7 94 71 19 0
CDI 0 0 0 0 5 41 3 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 75 13 49 15 1 0 0
OW 0 25 3 53 17 7 0 0
VODI 0 8 1 84 27 9 0 0
ODI 0 0 0 23 68 11 0 0
CDI 0 0 0 6 104 63 10 0
VCDI 0 0 0 0 117 1410 2885 719
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 46 10 37 13 5 0 0
OW 0 34 4 15 8 10 0 0
VODI 0 20 2 67 17 13 0 0
ODI 0 8 1 50 34 14 0 0
CDI 0 0 0 28 89 34 2 0
VCDI 0 0 0 18 187 1425 2893 719

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 5 0 0 0
VODI 0 0 0 16 24 9 0 0
ODI 0 0 0 11 30 36 14 20
CDI 0 0 0 15 38 125 117 112
VCDI 0 0 0 0 48 335 3191 4441
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 16 28 0
CDI 0 0 0 8 51 79 76 83
VCDI 0 0 0 34 82 410 3218 4490

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12246 4138 54 258 130 9 0 0
OW 0 111 16 194 190 22 0 0
VODI 0 21 8 146 190 45 0 0
ODI 0 0 0 24 194 109 6 0
CDI 0 0 0 0 138 375 58 0
VCDI 0 0 0 0 40 489 998 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12246 4262 73 405 198 31 0 0
OW 0 8 5 144 219 27 0 0
VODI 0 0 0 29 176 131 3 0
ODI 0 0 0 22 80 113 23 0
CDI 0 0 0 18 129 230 74 0
VCDI 0 0 0 4 80 517 962 0


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