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: 2018-04-19

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-04-23

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 0 218 16 73 45 0 0 0
OW 0 3 1 22 43 6 0 0
VODI 0 0 0 23 42 27 0 0
ODI 0 0 0 11 40 41 5 0
CDI 0 0 0 0 31 80 10 0
VCDI 0 0 0 0 24 317 5295 30529
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 214 16 88 81 3 0 0
OW 0 7 1 14 41 17 0 0
VODI 0 0 0 20 28 40 3 0
ODI 0 0 0 7 23 45 7 0
CDI 0 0 0 0 26 69 20 0
VCDI 0 0 0 0 26 297 5280 30529

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 53 560 2520
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 53 560 2520

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 14 572 9396
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 14 572 9396

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 17 73 1 0 0
ODI 0 0 0 0 164 57 0 0
CDI 0 0 0 0 107 79 1 0
VCDI 0 0 0 0 194 364 2660 1937
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 15 51 3 0 0
VODI 0 0 0 2 70 50 0 0
ODI 0 0 0 0 58 44 0 0
CDI 0 0 0 0 62 33 4 0
VCDI 0 0 0 0 297 371 2657 1937

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 1 0
CDI 0 0 0 0 2 14 32 0
VCDI 0 0 0 0 44 202 2581 4370
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 0
CDI 0 0 0 0 3 7 41 28
VCDI 0 0 0 0 43 209 2570 4342

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 51 29 5 0
CDI 0 0 0 0 99 65 30 2
VCDI 0 0 0 0 197 461 2256 2131
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 10 12 13 0
CDI 0 0 0 0 73 57 56 15
VCDI 0 0 0 0 264 486 2222 2118

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 0 28 11 0
VCDI 0 0 0 0 0 196 3602 2494
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 25 7 1
VCDI 0 0 0 0 0 199 3606 2493

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3431 3301 39 313 153 4 0 0
OW 0 72 16 74 127 23 0 0
VODI 0 3 2 66 172 58 0 0
ODI 0 0 0 0 165 116 0 0
CDI 0 0 0 0 93 332 38 0
VCDI 0 0 0 1 35 629 2068 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3420 3035 39 328 196 6 0 0
OW 5 188 9 68 152 30 0 0
VODI 6 147 6 23 131 92 0 0
ODI 0 6 3 24 102 124 0 0
CDI 0 0 0 10 114 287 19 0
VCDI 0 0 0 1 50 623 2087 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 5651 3331 17 33 0 0 0 0
OW 0 60 12 112 17 0 0 0
VODI 0 3 4 107 79 0 0 0
ODI 0 0 0 10 151 15 0 0
CDI 0 0 0 0 95 404 29 0
VCDI 0 0 0 0 2 191 1241 132
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5651 3260 15 44 3 0 0 0
OW 0 103 11 86 23 0 0 0
VODI 0 27 5 90 86 0 0 0
ODI 0 4 2 32 120 44 0 0
CDI 0 0 0 10 104 423 114 0
VCDI 0 0 0 0 8 143 1156 132

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8726 3270 44 182 132 34 2 0
OW 0 59 9 83 68 11 0 0
VODI 0 0 0 27 75 31 0 0
ODI 0 0 0 0 44 81 28 0
CDI 0 0 0 0 9 40 33 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8726 3327 52 257 226 70 2 0
OW 0 2 1 27 52 46 15 0
VODI 0 0 0 8 33 62 37 0
ODI 0 0 0 0 16 15 9 0
CDI 0 0 0 0 1 4 0 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 25 1 3 0 0 0 0
OW 0 2 2 42 3 0 0 0
VODI 0 0 0 36 52 0 0 0
ODI 0 0 0 12 98 3 0 0
CDI 0 0 0 1 105 48 38 0
VCDI 0 0 0 0 44 577 4256 455
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 24 0 19 1 0 0 0
OW 0 3 3 21 14 0 0 0
VODI 0 0 0 24 37 1 0 0
ODI 0 0 0 20 53 4 0 0
CDI 0 0 0 10 92 20 40 0
VCDI 0 0 0 0 105 603 4254 455

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 13 0 0 0
VODI 0 0 0 1 41 6 0 0
ODI 0 0 0 1 60 34 35 0
CDI 0 0 0 1 105 229 157 21
VCDI 0 0 0 0 73 1120 4654 2036
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 14 0 0 0
VODI 0 0 0 0 45 2 0 0
ODI 0 0 0 1 60 31 0 0
CDI 0 0 0 2 98 225 176 18
VCDI 0 0 0 0 75 1131 4670 2039

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12013 3911 47 348 236 53 0 0
OW 0 117 23 166 161 55 0 0
VODI 0 4 4 138 311 105 0 0
ODI 0 0 0 19 212 230 11 0
CDI 0 0 0 18 160 578 175 0
VCDI 0 0 0 0 72 402 640 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12013 3980 62 398 331 85 0 0
OW 0 50 11 186 201 85 0 0
VODI 0 2 1 51 218 151 0 0
ODI 0 0 0 15 131 191 31 0
CDI 0 0 0 37 167 420 204 0
VCDI 0 0 0 2 104 491 591 0


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