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: 2019-01-31

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-02-04

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 0 358 3 5 0 0 0 0
OW 0 92 3 14 0 0 0 0
VODI 0 60 3 39 17 0 0 0
ODI 0 72 11 77 62 0 0 0
CDI 0 36 7 127 122 41 0 3
VCDI 0 0 0 10 307 508 4562 30363
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 297 3 12 0 0 0 0
OW 0 72 4 19 6 0 0 0
VODI 0 67 0 24 20 2 0 0
ODI 0 42 1 10 33 7 0 0
CDI 0 30 6 38 61 34 5 4
VCDI 0 110 13 169 388 506 4557 30362

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 11
VCDI 0 0 0 0 0 34 948 2140
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 13
VCDI 0 0 0 0 0 34 948 2138

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 59 13 2
VCDI 0 0 0 0 0 118 1699 8091
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 16 1 0
CDI 0 0 0 0 0 50 29 4
VCDI 0 0 0 0 0 111 1682 8089

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 9 2 0
ODI 0 0 0 0 0 31 10 0
CDI 0 0 0 0 0 44 34 0
VCDI 0 0 0 0 0 56 1787 3681
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 41 14 0
ODI 0 0 0 0 0 21 29 0
CDI 0 0 0 0 0 25 65 4
VCDI 0 0 0 0 0 53 1725 3677

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 0 0 0 0
VCDI 0 0 0 0 0 0 0 7246
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 7246

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 2 0 0
VCDI 0 0 0 0 0 40 1291 3993
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 0 0
VCDI 0 0 0 0 0 41 1291 3993

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 67 0 0 0 0 0 0
OW 0 28 0 0 0 0 0 0
VODI 0 32 0 0 0 0 0 0
ODI 0 14 5 8 3 0 0 0
CDI 0 2 2 33 23 8 0 8
VCDI 0 0 0 5 48 138 2556 3351
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 56 0 0 0 0 0 0
OW 0 18 0 0 0 0 0 0
VODI 0 27 0 0 0 0 0 0
ODI 0 25 0 0 0 0 0 0
CDI 0 14 6 10 7 4 1 6
VCDI 0 3 1 36 67 142 2555 3353

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4393 3607 29 120 25 0 0 0
OW 0 323 9 79 50 5 0 0
VODI 0 177 20 215 107 15 0 0
ODI 0 45 0 101 158 26 0 0
CDI 0 40 3 30 226 164 0 0
VCDI 0 4 4 30 158 619 549 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4382 3301 28 135 25 0 0 0
OW 11 338 2 46 46 6 0 0
VODI 0 270 12 63 69 8 0 0
ODI 0 102 10 113 111 9 0 0
CDI 0 80 4 104 95 112 0 0
VCDI 0 105 9 114 378 694 549 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 6620 2553 1 0 0 0 0 0
OW 0 185 3 9 0 0 0 0
VODI 0 103 22 79 8 0 0 0
ODI 0 12 4 69 43 0 0 0
CDI 0 0 0 50 108 20 8 0
VCDI 0 0 0 4 131 368 1264 32
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6620 2486 0 0 0 0 0 0
OW 0 162 2 1 0 0 0 0
VODI 0 133 7 29 1 0 0 0
ODI 0 57 12 44 16 0 0 0
CDI 0 15 7 77 65 11 8 0
VCDI 0 0 2 60 208 377 1264 32

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8345 3188 21 55 47 4 0 0
OW 0 79 30 104 11 13 0 0
VODI 0 2 4 101 108 10 0 0
ODI 0 0 0 6 129 40 0 0
CDI 0 0 0 0 49 296 117 0
VCDI 0 0 0 0 0 117 112 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8345 3179 28 79 55 15 0 0
OW 0 77 21 65 22 12 0 0
VODI 0 13 6 90 81 20 0 0
ODI 0 0 0 28 95 38 0 0
CDI 0 0 0 4 87 242 104 0
VCDI 0 0 0 0 4 153 125 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 68 0 0 0 0 0 0
OW 0 21 1 2 0 0 0 0
VODI 0 9 3 9 1 0 0 0
ODI 0 5 0 12 6 0 0 0
CDI 0 0 0 27 35 7 11 0
VCDI 0 0 0 11 127 564 2852 2032
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 55 0 0 0 0 0 0
OW 0 16 1 2 0 0 0 0
VODI 0 9 0 4 1 0 0 0
ODI 0 11 2 2 4 0 0 0
CDI 0 8 1 12 9 3 6 0
VCDI 0 4 0 41 155 568 2857 2032

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 0 0 0
CDI 0 0 0 0 3 59 4 0
VCDI 0 0 0 0 10 479 2768 5264
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 1 48 6 0
VCDI 0 0 0 0 12 490 2766 5264

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10896 4196 62 338 196 0 0 0
OW 0 81 15 142 133 0 0 0
VODI 0 26 13 118 266 11 0 0
ODI 0 24 5 40 416 56 0 0
CDI 0 1 1 24 427 308 3 0
VCDI 0 0 0 0 227 1262 885 37
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10896 4219 60 364 208 0 0 0
OW 0 61 14 111 122 0 0 0
VODI 0 28 14 84 232 3 0 0
ODI 0 18 4 59 236 44 0 0
CDI 0 2 4 29 406 179 0 0
VCDI 0 0 0 15 461 1411 888 37


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