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: 2018-04-05

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-04-09

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 0 326 13 63 32 1 0 0
OW 0 7 1 46 25 4 0 0
VODI 0 1 2 22 52 9 0 0
ODI 0 0 0 2 53 34 0 0
CDI 0 0 0 0 36 59 3 0
VCDI 0 0 0 0 27 247 5195 30642
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 326 13 79 33 0 0 0
OW 0 7 2 31 34 8 0 0
VODI 0 1 1 20 54 22 0 0
ODI 0 0 0 3 43 36 2 0
CDI 0 0 0 0 37 52 11 0
VCDI 0 0 0 0 24 236 5185 30642

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 32 402 2699
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 32 402 2699

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 8 6 0
VCDI 0 0 0 0 0 41 1563 8364
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 2 0
VCDI 0 0 0 0 0 48 1567 8364

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 1 0 0
ODI 0 0 0 0 2 26 0 0
CDI 0 0 0 0 6 111 63 11
VCDI 0 0 0 0 0 332 2566 2536
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 14 0 0
CDI 0 0 0 0 7 45 20 0
VCDI 0 0 0 0 0 411 2609 2547

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 4 0
CDI 0 0 0 0 0 2 12 0
VCDI 0 0 0 0 0 44 1893 5291
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 3 1
VCDI 0 0 0 0 0 45 1906 5290

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 0 0 0
CDI 0 0 0 0 0 0 1 3
VCDI 0 0 0 0 0 9 1372 3941
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 9 1373 3944

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 13 5 0
CDI 0 0 0 0 0 78 66 3
VCDI 0 0 0 0 14 696 4681 775
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 4 0 0
CDI 0 0 0 0 0 56 46 0
VCDI 0 0 0 0 14 727 4706 778

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2998 3557 41 179 88 13 0 0
OW 0 57 16 105 103 17 0 0
VODI 0 23 3 103 213 66 0 0
ODI 0 2 0 11 144 155 0 0
CDI 0 0 0 7 106 517 19 0
VCDI 0 0 0 0 56 1111 1621 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2998 3504 40 169 117 21 0 0
OW 0 89 11 75 81 26 0 0
VODI 0 35 9 80 103 73 0 0
ODI 0 9 0 53 124 138 0 0
CDI 0 2 0 20 154 269 6 0
VCDI 0 0 0 8 131 1352 1634 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 5015 3623 20 132 19 0 0 0
OW 0 125 14 93 34 0 0 0
VODI 0 28 7 118 114 2 0 0
ODI 0 3 2 21 120 34 0 0
CDI 0 0 0 1 92 176 4 0
VCDI 0 0 0 0 22 315 1449 113
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5015 3589 21 154 32 0 0 0
OW 0 115 8 67 57 0 0 0
VODI 0 64 8 61 83 20 0 0
ODI 0 8 5 47 85 39 0 0
CDI 0 3 1 35 86 138 37 0
VCDI 0 0 0 1 58 330 1416 113

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8503 3304 40 136 128 7 0 0
OW 0 61 22 95 29 10 0 0
VODI 0 4 3 82 101 23 1 0
ODI 0 0 0 4 98 59 14 0
CDI 0 0 0 0 30 151 76 0
VCDI 0 0 0 0 0 0 7 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8503 3328 46 191 146 16 0 0
OW 0 34 15 64 54 22 0 0
VODI 0 7 4 44 76 30 16 0
ODI 0 0 0 18 69 62 39 0
CDI 0 0 0 0 41 119 43 0
VCDI 0 0 0 0 0 1 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 12 0 3 0 0 0 0
OW 0 3 3 8 0 0 0 0
VODI 0 0 0 14 4 0 0 0
ODI 0 0 0 2 25 3 0 0
CDI 0 0 0 0 64 23 7 0
VCDI 0 0 0 0 64 412 2784 2372
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 9 0 1 0 0 0 0
OW 0 6 3 4 0 0 0 0
VODI 0 0 0 14 1 0 0 0
ODI 0 0 0 8 11 1 0 0
CDI 0 0 0 0 44 10 10 0
VCDI 0 0 0 0 101 427 2781 2372

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 6 32 4 0
CDI 0 0 0 0 11 94 56 2
VCDI 0 0 0 0 7 286 2658 5431
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 19 9 0
CDI 0 0 0 0 7 88 92 15
VCDI 0 0 0 0 17 305 2617 5418

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10020 5437 84 277 97 0 0 0
OW 0 190 23 255 165 6 0 0
VODI 0 72 8 147 426 48 0 0
ODI 0 0 0 13 326 240 0 0
CDI 0 0 0 0 99 559 98 0
VCDI 0 0 0 0 38 336 1176 69
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10020 5633 96 436 273 0 0 0
OW 0 66 18 184 240 13 0 0
VODI 0 0 1 62 292 205 2 0
ODI 0 0 0 10 170 342 20 0
CDI 0 0 0 0 105 286 151 0
VCDI 0 0 0 0 71 343 1101 69


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