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: 2018-04-26

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-04-30

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 0 143 10 83 70 16 0 0
OW 0 0 1 11 22 28 2 0
VODI 0 0 0 8 26 34 12 0
ODI 0 0 0 0 21 24 27 0
CDI 0 0 0 1 24 51 41 0
VCDI 0 0 0 2 18 288 5402 30537
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 142 11 90 87 34 1 0
OW 0 1 0 8 22 33 7 0
VODI 0 0 0 4 20 31 31 0
ODI 0 0 0 0 20 26 40 0
CDI 0 0 0 0 15 49 78 0
VCDI 0 0 0 3 17 268 5327 30537

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 49 883 2201
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 49 883 2201

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 1 10 0 0
CDI 0 0 0 0 7 57 10 5
VCDI 0 0 0 0 1 344 3030 6517
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 2 9 0 0
CDI 0 0 0 0 7 54 19 60
VCDI 0 0 0 0 0 348 3021 6462

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 33 3 73 0 0 0 0
OW 0 116 15 78 0 0 0 0
VODI 0 77 3 77 40 0 0 0
ODI 0 31 1 23 41 23 0 0
CDI 0 32 2 43 41 17 11 0
VCDI 0 17 2 72 161 239 2578 1805
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 38 4 80 0 0 0 0
OW 0 39 4 39 0 0 0 0
VODI 0 35 3 56 24 0 0 0
ODI 0 42 7 40 23 13 0 0
CDI 0 56 5 59 58 19 3 0
VCDI 0 96 3 92 178 247 2586 1805

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 2 5 9 0
VCDI 0 0 0 0 104 181 2439 4506
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 7 14 26 0
VCDI 0 0 0 0 99 172 2422 4506

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 29 6 0
CDI 0 0 0 0 5 86 35 0
VCDI 0 0 0 0 0 496 2627 2042
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 34 6 0
CDI 0 0 0 0 5 94 78 0
VCDI 0 0 0 0 0 483 2584 2042

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 2 0 0
VCDI 0 0 0 0 0 43 2619 3667
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 1 8 5
VCDI 0 0 0 0 0 44 2611 3662

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3486 3243 34 259 183 41 0 0
OW 0 28 13 76 113 53 0 0
VODI 0 0 0 72 182 73 3 0
ODI 0 0 0 3 101 109 10 0
CDI 0 0 0 5 80 295 53 0
VCDI 0 0 0 14 42 452 2308 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3467 3101 32 257 290 108 0 0
OW 17 77 8 52 90 86 5 0
VODI 2 76 6 59 84 128 22 0
ODI 0 17 1 25 68 98 38 0
CDI 0 0 0 17 83 162 118 0
VCDI 0 0 0 19 86 441 2191 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 5517 3447 27 57 3 0 0 0
OW 0 30 18 152 26 0 0 0
VODI 0 0 0 105 128 0 0 0
ODI 0 0 0 1 208 6 0 0
CDI 0 0 0 0 127 210 14 0
VCDI 0 0 0 0 5 415 1200 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5517 3393 25 92 20 0 0 0
OW 0 75 15 116 43 0 0 0
VODI 0 9 5 91 124 0 0 0
ODI 0 0 0 16 166 9 0 0
CDI 0 0 0 0 112 175 19 0
VCDI 0 0 0 0 32 447 1195 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 8414 3373 59 335 149 15 0 0
OW 0 17 6 106 53 11 0 0
VODI 0 2 1 46 104 19 0 0
ODI 0 0 0 3 138 63 0 0
CDI 0 0 0 0 3 71 0 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 8414 3389 64 467 337 84 0 0
OW 0 3 2 16 54 78 0 0
VODI 0 0 0 7 35 17 0 0
ODI 0 0 0 0 21 0 0 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 0 0 26 8 0 0 0
OW 0 0 0 13 16 0 0 0
VODI 0 0 0 11 54 0 0 0
ODI 0 0 0 0 96 8 0 0
CDI 0 0 0 0 63 147 5 0
VCDI 0 0 0 0 11 934 3766 645
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 27 9 0 0 0
OW 0 0 0 12 24 0 0 0
VODI 0 0 0 11 42 0 0 0
ODI 0 0 0 0 45 5 0 0
CDI 0 0 0 0 56 64 24 0
VCDI 0 0 0 0 72 1020 3747 645

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 13 0 0 0
ODI 0 0 0 0 73 16 0 0
CDI 0 0 0 0 95 200 41 44
VCDI 0 0 0 0 75 994 4815 2221
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 1 0 0 0
VODI 0 0 0 0 26 0 1 0
ODI 0 0 0 0 72 47 30 36
CDI 0 0 0 0 78 222 84 90
VCDI 0 0 0 0 79 941 4741 2139

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11401 4472 81 654 337 11 0 0
OW 0 8 1 128 185 41 0 0
VODI 0 2 1 26 296 89 0 0
ODI 0 0 0 5 333 216 0 0
CDI 0 0 0 0 305 826 62 0
VCDI 0 0 0 0 74 517 138 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11401 4462 79 737 569 53 0 0
OW 0 12 3 37 192 77 0 0
VODI 0 8 1 21 147 144 0 0
ODI 0 0 0 14 125 182 35 0
CDI 0 0 0 4 247 455 27 0
VCDI 0 0 0 0 250 789 138 0


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