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: 2020-02-06

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-02-10

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 59 5 13 4 0 0 0
OW 0 27 3 15 7 0 0 0
VODI 0 16 1 30 15 2 0 0
ODI 0 7 1 32 45 6 0 0
CDI 0 0 0 4 51 52 21 0
VCDI 0 0 0 3 65 587 5567 30264
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 37 4 12 3 0 0 0
OW 0 15 1 8 6 0 0 0
VODI 0 34 3 18 11 1 0 0
ODI 0 22 2 29 26 5 0 0
CDI 0 1 0 26 51 10 0 0
VCDI 0 0 0 4 90 631 5588 30264

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 96 1080 1957
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 7
VCDI 0 0 0 0 0 96 1080 1950

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 1 0
VCDI 0 0 0 0 0 26 1625 4002
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 0
VCDI 0 0 0 0 0 26 1620 4002

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 43
VCDI 0 0 0 0 0 1 819 6383
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 46
VCDI 0 0 0 0 0 1 819 6380

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 16 26 2
VCDI 0 0 0 0 0 207 2385 2690
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 39 36 2
VCDI 0 0 0 0 0 184 2375 2690

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 0 0 0
CDI 0 0 0 0 15 154 16 13
VCDI 0 0 0 0 58 97 2270 3708
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 5 18 6
VCDI 0 0 0 0 73 246 2268 3715

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3041 3625 36 135 12 0 0 0
OW 0 201 37 195 39 0 0 0
VODI 0 66 21 245 182 19 0 0
ODI 0 17 5 84 266 36 3 0
CDI 0 0 0 22 233 180 20 0
VCDI 0 0 0 1 172 691 1747 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3041 3489 26 85 15 0 0 0
OW 0 217 18 115 19 2 0 0
VODI 0 148 31 186 66 15 0 0
ODI 0 39 17 156 161 36 3 0
CDI 0 16 7 99 270 103 24 0
VCDI 0 0 0 41 373 770 1743 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 5330 3595 15 77 7 0 0 0
OW 0 132 11 60 10 0 0 0
VODI 0 63 11 94 42 3 0 0
ODI 0 14 5 57 72 4 0 0
CDI 0 8 1 37 100 48 2 0
VCDI 0 2 2 38 204 868 784 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5330 3535 12 70 4 0 0 0
OW 0 141 10 55 16 2 0 0
VODI 0 85 7 76 42 2 0 0
ODI 0 33 11 43 54 2 0 0
CDI 0 12 2 63 77 52 3 0
VCDI 0 8 3 56 242 865 783 0

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8721 3057 36 127 88 29 0 0
OW 0 113 13 48 36 4 0 0
VODI 0 59 8 49 57 17 0 0
ODI 0 0 1 24 69 71 28 0
CDI 0 0 0 1 39 75 194 0
VCDI 0 0 0 0 1 11 12 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8721 3189 49 170 147 42 0 0
OW 0 36 5 33 36 32 2 0
VODI 0 4 4 25 42 63 70 0
ODI 0 0 0 18 13 22 100 0
CDI 0 0 0 3 46 34 51 0
VCDI 0 0 0 0 6 14 11 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 9 1 3 0 0 0 0
OW 0 9 1 20 1 0 0 0
VODI 0 7 3 25 20 5 0 0
ODI 0 7 1 19 35 32 0 0
CDI 0 0 0 9 88 42 20 0
VCDI 0 0 0 0 124 650 3174 1498
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 6 2 6 3 1 0 0
OW 0 1 0 9 2 6 0 0
VODI 0 9 0 10 10 27 1 0
ODI 0 7 3 16 15 19 5 0
CDI 0 9 1 26 38 26 9 0
VCDI 0 0 0 9 200 650 3179 1498

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 48 17 6
VCDI 0 0 0 0 0 116 3238 5162
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 43 40 6
VCDI 0 0 0 0 0 121 3215 5162

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11531 4060 66 349 93 0 0 0
OW 0 15 8 199 172 9 0 0
VODI 0 0 1 92 383 19 0 0
ODI 0 0 0 2 353 66 0 0
CDI 0 0 0 0 286 377 0 0
VCDI 0 0 0 0 160 1266 702 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11531 4061 65 347 108 3 0 0
OW 0 14 10 192 146 16 0 0
VODI 0 0 0 98 261 29 0 0
ODI 0 0 0 5 313 52 0 0
CDI 0 0 0 0 367 225 0 0
VCDI 0 0 0 0 252 1412 702 0


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