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: 2019-05-09

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-05-13

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 24 56 3 0
OW 0 2 1 0 5 17 7 0
VODI 0 10 2 7 11 25 12 0
ODI 0 3 1 3 18 32 69 0
CDI 0 3 2 16 13 283 152 10
VCDI 0 0 1 15 71 432 5736 29860
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 28 71 11 0
OW 0 0 0 0 7 24 15 0
VODI 0 4 3 5 14 50 80 0
ODI 0 7 0 2 2 53 51 0
CDI 0 5 1 7 8 232 196 29
VCDI 0 2 3 27 83 415 5626 29841

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 3 0 28 8 0 0 0
ODI 0 12 5 32 19 1 0 0
CDI 0 4 2 34 93 101 65 0
VCDI 0 0 0 0 4 149 1438 1135
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 2 0 0 0 0
ODI 0 2 0 24 9 3 1 0
CDI 0 17 7 64 50 95 156 0
VCDI 0 0 0 4 65 153 1346 1135

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 5 17 0 0 0
VODI 0 0 0 22 59 1 0 0
ODI 0 0 0 24 119 8 0 0
CDI 0 0 0 5 488 869 42 0
VCDI 0 0 0 0 48 771 3629 3875
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 2 24 1 0 0
ODI 0 0 0 13 85 3 0 0
CDI 0 0 0 35 253 331 79 0
VCDI 0 0 0 6 369 1314 3592 3875

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4 660 10 49 0 0 0 0
OW 2 175 22 84 1 0 0 0
VODI 0 12 7 150 64 0 0 0
ODI 0 0 0 18 129 3 0 0
CDI 0 0 0 8 120 98 0 0
VCDI 0 0 0 0 56 318 2632 1032
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4 683 12 49 0 0 0 0
OW 2 93 8 36 0 0 0 0
VODI 0 57 10 108 21 0 0 0
ODI 0 13 8 75 67 1 0 0
CDI 0 1 1 33 154 31 0 0
VCDI 0 0 0 8 128 387 2632 1032

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 32 17 2 0
VCDI 0 0 0 0 131 507 4868 1689
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 1 2 0 0
CDI 0 0 0 0 16 8 28 0
VCDI 0 0 0 0 146 514 4842 1689

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 6 5 0 0 0
VODI 0 0 0 14 58 5 1 0
ODI 0 2 2 18 117 16 7 0
CDI 0 23 4 41 152 86 49 0
VCDI 0 11 2 45 220 391 2086 1965
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 48 4 4 0
ODI 0 0 0 0 53 16 33 1
CDI 0 1 2 31 70 30 167 45
VCDI 0 35 6 93 381 448 1939 1919

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 87 6 23 3 0 0 0
OW 0 38 6 33 10 0 0 0
VODI 0 17 5 36 44 3 0 0
ODI 0 15 4 10 69 67 4 0
CDI 0 1 1 37 123 320 77 0
VCDI 0 0 0 0 130 1171 3957 34
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 95 7 42 10 0 0 0
OW 0 11 5 24 28 0 0 0
VODI 0 8 1 22 60 23 0 0
ODI 0 16 4 4 27 97 21 0
CDI 0 28 5 43 22 187 150 0
VCDI 0 0 0 4 232 1254 3867 34

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5070 3066 36 151 36 0 0 0
OW 0 76 13 114 29 0 0 0
VODI 0 47 3 116 175 2 0 0
ODI 0 4 2 31 258 32 0 0
CDI 0 3 1 20 209 584 2 0
VCDI 0 4 1 40 203 397 606 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5070 2991 36 170 44 0 0 0
OW 0 106 9 89 40 0 0 0
VODI 0 78 7 97 164 3 0 0
ODI 0 12 0 28 185 20 2 0
CDI 0 5 2 35 234 527 47 0
VCDI 0 8 2 53 243 465 559 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 5658 3062 28 161 42 0 0 0
OW 0 30 11 104 32 0 0 0
VODI 0 0 0 90 124 4 0 0
ODI 0 0 0 4 177 89 18 0
CDI 0 0 0 0 100 955 19 0
VCDI 0 0 0 0 0 238 750 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5658 3043 28 196 60 0 0 0
OW 0 49 10 66 56 4 0 0
VODI 0 0 1 82 99 75 29 0
ODI 0 0 0 15 118 219 5 0
CDI 0 0 0 0 140 423 3 0
VCDI 0 0 0 0 2 565 750 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 8589 3467 60 314 178 8 0 0
OW 0 0 0 16 70 4 0 0
VODI 0 0 0 0 60 24 0 0
ODI 0 0 0 0 19 44 0 0
CDI 0 0 0 0 1 74 60 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 8589 3467 60 326 254 17 0 0
OW 0 0 0 4 62 43 0 0
VODI 0 0 0 0 12 89 52 0
ODI 0 0 0 0 0 5 8 0
CDI 0 0 0 0 0 0 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 0 514 18 68 0 0 0 0
OW 0 15 6 126 15 0 0 0
VODI 0 1 1 138 179 0 0 0
ODI 0 0 0 16 351 85 0 0
CDI 0 0 0 0 294 1634 231 0
VCDI 0 0 0 0 9 162 1850 90
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 514 19 106 16 0 0 0
OW 0 14 4 85 41 0 0 0
VODI 0 2 2 113 161 14 0 0
ODI 0 0 0 34 270 117 5 0
CDI 0 0 0 10 330 1515 634 0
VCDI 0 0 0 0 30 235 1442 90

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 28 26 0 0 0
OW 0 0 0 20 32 0 0 0
VODI 0 0 0 24 179 5 1 0
ODI 0 0 0 8 406 80 8 0
CDI 0 0 0 3 171 456 76 4
VCDI 0 0 0 0 35 1161 3858 2006
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 23 22 0 1 0
OW 0 0 0 23 73 12 4 0
VODI 0 0 0 12 186 38 5 0
ODI 0 0 0 18 327 110 44 4
CDI 0 0 0 5 171 258 234 84
VCDI 0 0 0 2 70 1284 3655 1922

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11626 5208 70 385 220 39 0 0
OW 0 0 0 78 181 44 11 0
VODI 0 0 0 7 243 104 24 0
ODI 0 0 0 0 409 284 40 0
CDI 0 0 0 0 35 424 142 0
VCDI 0 0 0 0 0 48 587 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11626 5208 70 447 440 120 27 0
OW 0 0 0 23 187 153 46 0
VODI 0 0 0 0 210 294 71 0
ODI 0 0 0 0 178 220 77 0
CDI 0 0 0 0 73 140 197 0
VCDI 0 0 0 0 0 16 386 0


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