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: 2017-03-23

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2017-03-27

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 0 0 4 0 0
OW 0 0 0 0 2 9 5 0
VODI 0 0 0 0 1 11 20 0
ODI 0 0 0 0 0 13 17 0
CDI 0 0 0 0 0 29 34 0
VCDI 0 0 0 0 2 754 6602 29399
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 1 13 10 0
OW 0 0 0 0 2 7 16 0
VODI 0 0 0 0 0 17 22 0
ODI 0 0 0 0 0 19 28 0
CDI 0 0 0 0 0 31 49 2
VCDI 0 0 0 0 2 733 6553 29397

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 53 299 2781
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 53 299 2781

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 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 1 32 6
CDI 0 0 0 0 0 23 145 13
VCDI 0 0 0 0 0 398 3212 3416
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 61 8
CDI 0 0 0 0 0 34 150 16
VCDI 0 0 0 0 0 387 3178 3411

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 3 34 6 0
CDI 0 0 0 0 1 78 26 4
VCDI 0 0 0 0 0 318 3162 1694
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 3 50 8 0
CDI 0 0 0 0 1 105 49 12
VCDI 0 0 0 0 0 275 3137 1686

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 198 325 51 0 0 0 0
OW 0 0 61 127 0 0 0 0
VODI 0 0 7 281 58 0 0 0
ODI 0 0 0 75 163 31 0 0
CDI 0 0 0 33 118 131 24 0
VCDI 0 0 0 25 143 582 3474 424
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 133 70 6 0 0 0 0
OW 0 54 79 52 20 0 0 0
VODI 0 6 158 122 80 0 0 0
ODI 0 5 62 151 52 27 0 0
CDI 0 0 23 122 61 80 20 0
VCDI 0 0 1 139 269 637 3478 424

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 5628 2066 427 31 0 0 0
OW 0 9 41 247 39 0 0 0
VODI 0 1 1 138 150 1 0 0
ODI 0 0 0 44 139 25 0 0
CDI 0 0 0 7 164 133 2 0
VCDI 0 0 0 0 166 1079 793 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 5626 2051 402 42 0 0 0
OW 0 8 50 192 57 1 0 0
VODI 0 4 7 218 150 7 0 0
ODI 0 0 0 37 126 38 0 0
CDI 0 0 0 12 132 128 2 0
VCDI 0 0 0 2 182 1064 793 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 21 4209 3486 317 43 4 0 0
OW 0 5 46 103 32 1 0 0
VODI 0 1 26 94 64 6 0 0
ODI 0 0 3 36 95 7 0 0
CDI 0 0 0 34 106 54 1 0
VCDI 0 0 0 11 118 838 1903 32
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 21 4189 3460 306 52 5 0 0
OW 0 23 37 98 23 4 0 0
VODI 0 3 32 83 57 7 0 0
ODI 0 0 24 32 71 9 0 0
CDI 0 0 8 31 98 36 0 1
VCDI 0 0 0 45 157 849 1904 31

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6252 4463 721 433 88 10 0 0
OW 0 0 3 121 42 3 0 0
VODI 0 0 0 56 104 11 0 0
ODI 0 0 0 5 80 49 2 0
CDI 0 0 0 0 40 166 73 0
VCDI 0 0 0 0 0 80 186 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6252 4463 715 465 116 9 0 0
OW 0 0 9 82 69 11 0 0
VODI 0 0 0 53 75 42 3 0
ODI 0 0 0 15 50 63 6 0
CDI 0 0 0 0 40 118 116 0
VCDI 0 0 0 0 4 76 136 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 0 0 0 3 6 0 0
OW 0 0 0 0 4 5 0 0
VODI 0 0 0 3 7 13 0 0
ODI 0 0 0 5 9 13 0 0
CDI 0 0 0 2 16 19 9 0
VCDI 0 0 0 0 14 420 2219 3036
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 6 5 0 0
OW 0 0 0 0 2 7 0 0
VODI 0 0 0 3 9 16 0 0
ODI 0 0 0 7 7 16 3 0
CDI 0 0 0 0 10 14 10 0
VCDI 0 0 0 0 19 418 2215 3036

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 13 0 0
CDI 0 0 0 0 0 53 39 4
VCDI 0 0 0 0 0 672 5325 2481
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 23 0 0
CDI 0 0 0 0 0 53 42 2
VCDI 0 0 0 0 0 662 5322 2483

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4027 7133 2893 597 156 13 0 0
OW 0 36 166 339 223 21 0 0
VODI 0 0 0 163 341 87 0 0
ODI 0 0 0 8 244 272 0 0
CDI 0 0 0 0 102 567 9 0
VCDI 0 0 0 0 14 1190 1562 46
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4027 7169 2988 839 315 50 0 0
OW 0 0 68 109 243 77 0 0
VODI 0 0 3 150 234 175 0 0
ODI 0 0 0 9 179 286 0 0
CDI 0 0 0 0 96 423 26 0
VCDI 0 0 0 0 13 1139 1545 46


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