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: 2018-01-18

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-01-22

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 0 612 3 7 0 0 0 0
OW 0 137 3 24 1 0 0 0
VODI 0 48 12 61 18 0 0 0
ODI 0 22 7 61 52 0 0 0
CDI 0 2 5 43 124 22 0 0
VCDI 0 0 0 6 131 602 4407 30492
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 517 1 1 0 0 0 0
OW 0 84 2 10 0 0 0 0
VODI 0 81 2 19 5 0 0 0
ODI 0 63 4 21 17 0 0 0
CDI 0 53 10 62 47 14 0 0
VCDI 0 23 11 89 257 610 4407 30492

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 1 6 15
VCDI 0 0 0 0 0 137 1043 1931
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 3 7
CDI 0 0 0 0 0 0 5 11
VCDI 0 0 0 0 0 138 1041 1928

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 11 22 0
CDI 0 0 0 0 0 11 30 16
VCDI 0 0 0 0 0 41 999 8852
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 63 1051 8868

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 6 23 0
VCDI 0 0 0 0 0 41 1531 4053
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 2 0 0
VCDI 0 0 0 0 0 45 1554 4053

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 5
VCDI 0 0 0 0 0 14 513 6714
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 14 513 6713

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 0
VCDI 0 0 0 0 0 5 417 4904
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 5 417 4904

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3 459 1 3 0 0 0 0
OW 0 51 1 30 0 0 0 0
VODI 0 49 0 41 28 0 0 0
ODI 0 31 3 42 84 34 0 0
CDI 0 28 8 63 130 78 14 0
VCDI 0 0 0 2 112 424 3067 1545
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3 332 0 0 0 0 0 0
OW 0 61 1 8 0 0 0 0
VODI 0 61 1 37 1 0 0 0
ODI 0 51 0 36 40 1 0 0
CDI 0 46 0 16 58 41 18 2
VCDI 0 67 11 84 255 494 3063 1543

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6204 3167 24 104 4 0 0 0
OW 0 296 14 84 11 0 0 0
VODI 0 222 30 185 91 2 0 0
ODI 0 16 3 43 182 47 0 0
CDI 0 17 1 31 128 41 0 0
VCDI 0 0 0 1 107 230 46 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6204 3151 24 59 3 0 0 0
OW 0 236 13 88 3 0 0 0
VODI 0 175 22 132 38 0 0 0
ODI 0 62 2 70 106 10 0 0
CDI 0 41 4 25 94 27 0 0
VCDI 0 53 7 74 279 283 46 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 6534 2844 10 29 0 0 0 0
OW 0 59 12 111 12 0 0 0
VODI 0 5 4 90 93 3 0 0
ODI 0 0 0 17 126 19 0 0
CDI 0 0 0 0 67 156 79 0
VCDI 0 0 0 0 12 257 1155 2
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6534 2794 10 12 0 0 0 0
OW 0 98 7 86 4 0 0 0
VODI 0 16 9 109 52 0 0 0
ODI 0 0 0 35 110 13 0 0
CDI 0 0 0 5 112 80 24 0
VCDI 0 0 0 0 32 342 1210 2

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9255 2686 33 112 85 4 0 0
OW 0 39 13 44 51 7 0 0
VODI 0 1 4 44 74 40 0 0
ODI 0 0 0 3 65 58 15 0
CDI 0 0 0 0 20 147 150 0
VCDI 0 0 0 0 0 3 35 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9255 2701 39 140 138 8 0 0
OW 0 25 8 37 59 45 0 0
VODI 0 0 3 22 51 68 16 0
ODI 0 0 0 4 30 68 82 0
CDI 0 0 0 0 17 70 100 0
VCDI 0 0 0 0 0 0 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 75 6 19 4 0 0 0
OW 0 6 8 14 9 0 0 0
VODI 0 0 0 23 18 0 0 0
ODI 0 0 0 9 32 0 0 0
CDI 0 5 3 31 60 16 1 0
VCDI 0 2 1 11 145 777 2382 2146
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 49 5 14 2 0 0 0
OW 0 17 1 8 4 0 0 0
VODI 0 11 5 9 12 0 0 0
ODI 0 4 3 13 20 0 0 0
CDI 0 0 0 15 42 8 5 0
VCDI 0 7 4 48 188 785 2378 2146

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 0 10 38 3
VCDI 0 0 0 0 21 297 3778 4440
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 4 30 10
VCDI 0 0 0 0 21 303 3786 4433

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12053 4221 45 233 46 0 0 0
OW 0 120 27 117 84 0 0 0
VODI 0 28 13 142 175 0 0 0
ODI 0 10 5 56 300 7 0 0
CDI 0 2 1 33 420 88 0 0
VCDI 0 0 0 7 357 1048 571 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12048 4261 50 309 71 0 0 0
OW 5 76 26 103 147 0 0 0
VODI 0 26 9 98 179 0 0 0
ODI 0 13 3 34 273 15 0 0
CDI 0 5 3 25 304 74 0 0
VCDI 0 0 0 19 408 1054 571 0


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