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: 2018-01-11

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-01-15

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 0 448 12 29 0 0 0 0
OW 0 33 6 28 9 0 0 0
VODI 0 32 2 35 32 0 0 0
ODI 0 21 1 12 45 1 0 0
CDI 0 14 5 21 71 10 0 0
VCDI 0 9 6 52 191 1174 6175 28428
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 399 10 10 0 0 0 0
OW 0 42 5 30 1 0 0 0
VODI 0 30 5 32 18 0 0 0
ODI 0 22 0 19 41 1 0 0
CDI 0 18 0 8 61 7 0 0
VCDI 0 46 12 78 227 1177 6175 28428

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 1 2 2
VCDI 0 0 0 0 0 259 1738 1131
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 2 3
VCDI 0 0 0 0 0 260 1738 1130

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 10 5 0 0
CDI 0 0 0 0 33 82 8 0
VCDI 0 0 0 0 46 825 3421 5552
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 11 14 0 0
CDI 0 0 0 0 29 76 0 0
VCDI 0 0 0 0 49 822 3429 5552

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 3 0 0 0
ODI 0 0 0 0 36 24 4 0
CDI 0 0 0 0 27 64 13 0
VCDI 0 0 0 0 24 284 1732 3443
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 2 0 0 0
ODI 0 0 0 0 22 0 0 0
CDI 0 0 0 0 33 12 3 0
VCDI 0 0 0 0 33 360 1746 3443

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 1
VCDI 0 0 0 0 0 0 0 7245
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 0 0 0
VCDI 0 0 0 0 0 21 645 4660
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 9 5
VCDI 0 0 0 0 0 21 636 4655

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 339 5 8 0 0 0 0
OW 0 90 14 62 1 0 0 0
VODI 0 38 4 78 66 0 0 0
ODI 0 20 0 33 155 29 0 0
CDI 0 15 4 52 226 165 26 1
VCDI 0 0 0 1 102 679 3084 1034
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 255 2 4 0 0 0 0
OW 0 76 1 5 1 0 0 0
VODI 0 69 10 24 35 0 0 0
ODI 0 37 10 56 76 4 0 0
CDI 0 33 0 84 131 92 22 2
VCDI 0 32 4 61 307 777 3088 1033

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5878 3522 41 109 22 0 0 0
OW 0 68 7 73 68 0 0 0
VODI 0 33 6 73 156 9 0 0
ODI 0 14 1 10 186 37 0 0
CDI 0 4 4 11 117 128 2 0
VCDI 0 0 0 3 38 376 335 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5878 3466 36 101 36 0 0 0
OW 0 83 11 72 39 0 0 0
VODI 0 45 6 59 133 7 0 0
ODI 0 23 1 20 134 18 0 0
CDI 0 16 1 11 115 67 0 0
VCDI 0 8 4 16 130 458 337 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 6500 2684 4 15 0 0 0 0
OW 0 127 12 53 5 0 0 0
VODI 0 28 11 114 40 0 0 0
ODI 0 0 0 57 64 3 0 0
CDI 0 0 0 21 87 42 7 0
VCDI 0 0 0 1 174 832 815 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6500 2575 4 31 0 0 0 0
OW 0 141 4 39 20 0 0 0
VODI 0 96 8 45 46 0 0 0
ODI 0 22 9 46 40 15 0 0
CDI 0 5 2 56 43 43 8 0
VCDI 0 0 0 44 221 819 814 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 9404 2664 39 100 61 13 0 0
OW 0 34 18 85 57 11 0 0
VODI 0 1 0 48 75 34 1 0
ODI 0 0 0 2 59 44 6 0
CDI 0 0 0 0 47 112 37 0
VCDI 0 0 0 0 14 19 3 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9404 2641 47 151 152 41 0 0
OW 0 48 9 48 33 51 5 0
VODI 0 10 1 22 34 57 26 0
ODI 0 0 0 12 24 35 16 0
CDI 0 0 0 2 40 35 0 0
VCDI 0 0 0 0 30 14 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 75 11 55 9 0 0 0
OW 0 1 0 7 35 0 0 0
VODI 0 0 0 0 75 12 0 0
ODI 0 0 0 5 66 49 0 0
CDI 0 0 0 2 66 125 11 0
VCDI 0 0 0 0 74 390 3464 1271
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 76 11 50 10 0 0 0
OW 0 0 0 11 26 0 0 0
VODI 0 0 0 1 52 8 0 0
ODI 0 0 0 4 58 28 0 0
CDI 0 0 0 2 56 84 5 0
VCDI 0 0 0 1 123 456 3470 1271

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 0 66 0 1
VCDI 0 0 0 0 0 869 3127 4524
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 48 0 1
VCDI 0 0 0 0 0 887 3127 4524

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12701 3845 49 218 22 0 0 0
OW 4 67 14 189 74 1 0 0
VODI 0 0 0 78 301 6 0 0
ODI 0 0 0 0 310 26 0 0
CDI 0 0 0 0 239 130 8 0
VCDI 0 0 0 0 196 1300 431 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12705 3824 53 291 47 0 0 0
OW 0 87 7 132 139 0 0 0
VODI 0 1 3 59 264 3 0 0
ODI 0 0 0 3 192 19 0 0
CDI 0 0 0 0 194 77 1 0
VCDI 0 0 0 0 306 1364 438 0


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