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: 2019-03-07

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-03-11

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 4 21 36 22 7 0
OW 0 0 0 3 11 28 16 0
VODI 0 0 0 1 13 26 34 0
ODI 0 1 1 10 21 7 48 0
CDI 0 2 0 11 33 23 70 5
VCDI 0 0 0 10 19 127 3356 32936
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 4 22 38 35 14 0
OW 0 0 0 3 12 30 26 0
VODI 0 0 0 0 16 15 57 0
ODI 0 0 0 0 13 9 49 0
CDI 0 0 0 0 17 15 56 0
VCDI 0 3 1 31 37 129 3329 32941

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 10 66 694 2363
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 10 66 694 2363

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 0 0 0
VCDI 0 0 0 0 0 14 1324 8644
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 0
VCDI 0 0 0 0 0 14 1323 8644

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 0 0 0
ODI 0 0 0 0 50 4 0 0
CDI 0 0 0 0 54 214 37 0
VCDI 0 0 0 0 0 683 1913 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 12 0 0 0
ODI 0 0 0 0 50 49 0 0
CDI 0 0 0 0 42 112 0 0
VCDI 0 0 0 0 0 740 1950 2699

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 10
VCDI 0 0 0 0 0 0 0 5316
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 5326

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 2 0 0
OW 0 0 0 0 0 13 0 0
VODI 0 0 0 0 9 14 0 0
ODI 0 0 0 0 11 12 1 0
CDI 0 0 0 0 29 41 2 14
VCDI 0 0 0 0 18 81 1756 4328
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 6 0 0
OW 0 0 0 0 0 10 0 0
VODI 0 0 0 0 8 13 0 0
ODI 0 0 0 0 8 8 0 0
CDI 0 0 0 0 10 3 2 14
VCDI 0 0 0 0 41 123 1757 4328

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2358 3607 54 327 320 117 13 0
OW 0 44 19 140 118 54 11 0
VODI 0 5 2 96 231 100 28 0
ODI 0 17 6 42 217 139 36 0
CDI 0 1 1 10 166 356 86 0
VCDI 0 0 0 4 48 781 1777 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2358 3590 53 352 352 160 21 0
OW 0 56 11 82 112 55 23 0
VODI 0 9 11 103 131 80 44 0
ODI 0 2 0 28 152 97 54 0
CDI 0 2 0 7 198 224 87 0
VCDI 0 15 7 47 155 931 1722 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 4822 3622 26 31 4 0 0 0
OW 0 109 16 90 3 0 0 0
VODI 0 37 11 147 52 0 0 0
ODI 0 12 1 62 132 2 0 0
CDI 0 3 1 24 136 83 0 0
VCDI 0 0 0 2 67 330 1733 138
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4822 3578 27 36 5 0 0 0
OW 0 118 10 83 4 0 0 0
VODI 0 49 11 120 45 0 0 0
ODI 0 18 5 39 110 6 0 0
CDI 0 18 1 51 105 51 2 0
VCDI 0 2 1 27 125 358 1731 138

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8306 3238 28 102 87 16 0 0
OW 0 122 28 60 16 9 0 0
VODI 0 17 16 89 78 7 0 0
ODI 0 0 0 23 96 24 0 0
CDI 0 0 0 0 102 131 58 0
VCDI 0 0 0 0 6 170 159 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8306 3219 40 143 130 26 0 0
OW 0 102 17 20 43 14 0 0
VODI 0 46 4 51 37 43 0 0
ODI 0 10 11 36 40 41 0 0
CDI 0 0 0 24 113 90 126 0
VCDI 0 0 0 0 22 143 91 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 0 3 2 0 0
OW 0 0 0 9 2 4 0 0
VODI 0 2 0 18 7 9 0 0
ODI 0 0 1 3 27 14 0 0
CDI 0 0 0 0 83 57 4 0
VCDI 0 0 0 0 85 720 3291 1462
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 1 6 5 0 0
OW 0 0 0 3 0 7 0 0
VODI 0 1 0 10 4 13 0 0
ODI 0 1 1 14 2 19 0 0
CDI 0 0 0 2 31 22 2 0
VCDI 0 0 0 0 164 740 3293 1462

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 0 0 15
VCDI 0 0 0 0 0 108 989 7475
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 10
VCDI 0 0 0 0 0 108 989 7480

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10638 4578 74 255 105 8 0 0
OW 9 74 18 241 128 21 0 0
VODI 0 22 5 67 416 51 0 0
ODI 0 1 0 4 398 156 0 0
CDI 0 0 0 0 269 573 100 0
VCDI 0 0 0 0 52 789 1157 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10647 4557 71 270 163 22 0 0
OW 0 91 18 116 137 45 0 0
VODI 0 25 8 123 195 108 0 0
ODI 0 2 0 50 259 185 0 0
CDI 0 0 0 8 364 367 99 0
VCDI 0 0 0 0 250 871 1158 0


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