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: 2019-01-10

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-01-14

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 0 155 4 19 5 0 0 0
OW 0 47 4 8 9 0 0 0
VODI 0 32 3 51 24 0 0 0
ODI 0 28 5 81 23 8 0 0
CDI 0 29 5 75 105 21 0 0
VCDI 0 16 0 50 300 818 5360 29617
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 113 3 16 4 0 0 0
OW 0 40 0 7 9 0 0 0
VODI 0 47 5 6 15 2 0 0
ODI 0 23 3 17 10 7 0 0
CDI 0 38 5 81 15 12 0 0
VCDI 0 46 5 157 413 826 5360 29617

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 54 1343 1736
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 2
VCDI 0 0 0 0 0 54 1343 1734

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 10 10 0
VCDI 0 0 0 0 0 74 2681 7207
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 10 10 3
VCDI 0 0 0 0 0 74 2681 7204

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 0 0 0 0
CDI 0 0 0 0 11 21 5 0
VCDI 0 0 0 0 33 338 1924 3322
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 8 12 0 0
VCDI 0 0 0 0 36 347 1929 3322

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 2
VCDI 0 0 0 0 0 0 0 7244
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 2
VCDI 0 0 0 0 0 0 0 7244

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 6 3
VCDI 0 0 0 0 0 29 1317 3971
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 7 4
VCDI 0 0 0 0 0 29 1316 3970

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 252 5 13 0 0 0 0
OW 0 122 15 78 7 0 0 0
VODI 0 40 6 52 69 1 0 0
ODI 0 25 0 15 74 19 0 0
CDI 0 37 6 51 109 111 45 0
VCDI 0 28 4 37 156 655 4267 32
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 153 4 12 0 0 0 0
OW 0 85 5 27 3 0 0 0
VODI 0 144 11 36 18 0 0 0
ODI 0 36 6 46 33 10 0 0
CDI 0 25 1 36 68 40 43 0
VCDI 0 61 9 89 293 736 4269 32

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5731 3176 34 219 64 0 0 0
OW 0 162 13 110 86 0 0 0
VODI 0 62 8 56 142 1 0 0
ODI 0 19 1 48 88 59 0 0
CDI 0 14 1 31 68 65 0 0
VCDI 0 14 4 26 223 534 272 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5731 3095 34 200 102 1 0 0
OW 0 136 13 88 47 1 0 0
VODI 0 105 1 60 71 15 0 0
ODI 0 56 4 30 79 22 0 0
CDI 0 27 4 40 77 32 0 0
VCDI 0 28 5 72 295 588 272 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 6305 2603 4 9 0 0 0 0
OW 0 147 8 39 2 0 0 0
VODI 0 62 9 74 13 0 0 0
ODI 0 6 7 65 47 0 0 0
CDI 0 0 1 37 86 17 0 0
VCDI 0 0 0 8 222 669 1256 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6305 2515 3 12 0 0 0 0
OW 0 131 2 26 1 0 0 0
VODI 0 112 10 29 12 0 0 0
ODI 0 45 4 52 27 0 0 0
CDI 0 12 7 54 51 6 0 0
VCDI 0 3 3 59 279 680 1256 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 8552 3054 31 124 197 119 0 0
OW 0 94 10 41 14 7 0 0
VODI 0 32 15 103 57 10 0 0
ODI 0 0 0 40 119 35 0 0
CDI 0 0 0 5 67 99 0 0
VCDI 0 0 0 0 38 125 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8552 3108 40 152 213 123 0 0
OW 0 68 9 73 39 7 0 0
VODI 0 4 7 58 94 14 0 0
ODI 0 0 0 18 44 51 0 0
CDI 0 0 0 11 43 63 0 0
VCDI 0 0 0 1 59 137 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 64 6 29 2 0 0 0
OW 0 0 0 14 8 0 0 0
VODI 0 0 0 8 17 1 0 0
ODI 0 0 0 2 18 4 0 0
CDI 0 0 0 5 59 31 0 0
VCDI 0 0 0 2 102 441 2235 2755
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 64 5 19 0 0 0 0
OW 0 0 1 15 5 0 0 0
VODI 0 0 0 13 13 0 0 0
ODI 0 0 0 6 10 2 0 0
CDI 0 0 0 0 24 8 0 0
VCDI 0 0 0 7 154 467 2235 2755

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 2 0 0 0
CDI 0 0 0 0 27 69 71 5
VCDI 0 0 0 0 0 1199 4749 2465
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 0 35 0
CDI 0 0 0 0 21 26 170 45
VCDI 0 0 0 0 7 1242 4615 2425

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12719 4000 23 95 7 0 0 0
OW 0 110 36 146 32 0 0 0
VODI 0 21 11 218 167 17 0 0
ODI 0 0 0 61 166 69 0 0
CDI 0 0 0 2 247 153 3 0
VCDI 0 0 0 0 70 878 958 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12719 4067 47 127 6 0 0 0
OW 0 64 21 197 41 0 0 0
VODI 0 0 2 165 192 3 0 0
ODI 0 0 0 33 163 76 0 0
CDI 0 0 0 0 173 117 0 0
VCDI 0 0 0 0 114 921 961 0


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