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: 2020-02-13

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-02-17

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 1 2 10 16 0 0 0
OW 0 0 1 12 13 3 0 0
VODI 0 4 3 11 22 8 0 0
ODI 0 0 0 12 27 22 2 0
CDI 0 0 0 12 18 62 26 0
VCDI 0 0 0 0 16 296 5992 30311
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1 2 10 21 1 0 0
OW 0 0 1 10 11 4 0 0
VODI 0 2 1 10 20 9 0 0
ODI 0 2 2 5 16 14 0 0
CDI 0 0 0 15 11 29 0 0
VCDI 0 0 0 7 33 334 6020 30311

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 1
VCDI 0 0 0 0 0 21 689 2422
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 1
VCDI 0 0 0 0 0 21 689 2422

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 1
VCDI 0 0 0 0 0 0 0 9981

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 59
VCDI 0 0 0 0 0 0 0 7187
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 86
VCDI 0 0 0 0 0 0 0 7160

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 1 0 0
CDI 0 0 0 0 0 12 18 4
VCDI 0 0 0 0 0 42 1064 4185
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 13 0
VCDI 0 0 0 0 0 50 1069 4189

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 32 39 4 0 0
ODI 0 31 10 40 100 63 0 1
CDI 0 52 4 76 82 157 28 10
VCDI 0 8 1 12 71 482 4511 517
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 3 0 0 0
VODI 0 0 0 0 39 8 0 0
ODI 0 0 0 0 60 46 0 3
CDI 0 4 1 17 52 116 35 7
VCDI 0 87 14 143 138 536 4504 518

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3861 3234 22 113 54 3 0 0
OW 0 350 29 145 64 10 0 0
VODI 0 141 12 185 209 27 0 0
ODI 0 14 3 101 130 69 4 0
CDI 0 6 0 11 112 123 28 0
VCDI 0 0 0 3 48 356 1864 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3861 3205 25 107 55 15 0 0
OW 0 224 16 61 43 13 0 0
VODI 0 120 6 122 115 24 11 0
ODI 0 78 3 85 157 40 17 0
CDI 0 84 9 77 77 89 32 0
VCDI 0 34 7 106 170 407 1836 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 5226 3577 18 82 19 0 0 0
OW 0 146 11 40 22 0 0 0
VODI 0 75 11 109 42 2 0 0
ODI 0 16 7 75 70 9 0 0
CDI 0 3 2 56 119 43 6 0
VCDI 0 0 0 11 158 511 1230 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5226 3448 17 75 26 0 0 0
OW 0 183 4 21 20 0 0 0
VODI 0 113 11 75 20 4 0 0
ODI 0 56 6 65 47 11 0 0
CDI 0 17 10 77 88 17 4 0
VCDI 0 0 1 60 229 533 1232 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 8921 2983 26 73 66 21 0 0
OW 0 128 10 29 20 8 0 0
VODI 0 41 19 61 50 25 0 0
ODI 0 0 0 26 74 58 10 0
CDI 0 0 0 2 49 70 151 0
VCDI 0 0 0 0 0 2 65 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8921 3060 37 101 107 43 0 0
OW 0 48 9 35 28 33 2 0
VODI 0 38 3 13 39 40 34 0
ODI 0 6 6 21 35 40 84 0
CDI 0 0 0 21 49 28 94 0
VCDI 0 0 0 0 1 0 12 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 6 0 0 0 0 0 0
OW 0 0 2 7 0 0 0 0
VODI 0 0 0 15 4 2 0 0
ODI 0 0 0 24 38 14 0 0
CDI 0 0 0 13 120 63 1 0
VCDI 0 0 0 5 84 444 2685 2276
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 5 0 0 0 0 0 0
OW 0 1 2 4 3 3 0 0
VODI 0 0 0 12 8 11 0 0
ODI 0 0 0 7 5 17 0 0
CDI 0 0 0 11 33 20 0 0
VCDI 0 0 0 30 197 472 2686 2276

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 67 6 4
VCDI 0 0 0 0 0 324 2391 5795
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 1 0 0
CDI 0 0 0 0 0 69 8 8
VCDI 0 0 0 0 0 321 2389 5791

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11282 4062 61 323 125 1 0 0
OW 0 49 19 199 100 7 0 0
VODI 0 2 4 198 295 23 0 0
ODI 0 0 0 12 354 67 0 0
CDI 0 0 0 0 339 346 3 0
VCDI 0 0 0 0 222 1338 778 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11282 4092 70 393 183 4 0 0
OW 0 12 12 175 128 29 0 0
VODI 0 9 2 100 215 54 0 0
ODI 0 0 0 58 309 82 0 0
CDI 0 0 0 6 339 376 11 0
VCDI 0 0 0 0 261 1237 770 0


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