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: 2017-12-14

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2017-12-18

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 0 546 17 56 9 0 0 0
OW 0 2 7 68 39 1 0 0
VODI 0 0 0 34 73 17 0 0
ODI 0 0 0 8 60 46 2 0
CDI 0 0 0 2 83 120 23 0
VCDI 0 0 0 0 103 814 9097 25675
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 486 9 37 3 0 0 0
OW 0 35 8 36 26 1 0 0
VODI 0 18 5 50 57 8 0 0
ODI 0 7 1 25 53 22 3 0
CDI 0 2 1 13 46 45 12 0
VCDI 0 0 0 7 182 922 9107 25675

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 62 1002 2069
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 62 1002 2069

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 3 0 0
CDI 0 0 0 0 0 10 0 0
VCDI 0 0 0 0 0 118 2312 7539
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 0 131 2312 7539

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 101 7 106 72 0 0 0
OW 0 39 7 83 47 19 0 0
VODI 0 0 0 107 91 214 0 0
ODI 0 0 0 51 112 547 32 0
CDI 0 0 0 11 175 346 180 0
VCDI 0 0 0 0 131 593 1800 783
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 103 7 133 81 19 0 0
OW 0 37 7 53 30 106 0 0
VODI 0 0 0 75 103 364 6 0
ODI 0 0 0 53 38 249 33 0
CDI 0 0 0 40 112 171 69 0
VCDI 0 0 0 4 264 810 1904 783

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 1 0 0
CDI 0 0 0 0 0 14 0 2
VCDI 0 0 0 0 0 280 1253 5696
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 1 0 0
CDI 0 0 0 0 0 9 0 0
VCDI 0 0 0 0 0 285 1253 5698

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 52
VCDI 0 0 0 0 0 0 146 5128
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 69
VCDI 0 0 0 0 0 0 146 5111

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 205 7 11 0 0 0 0
OW 0 47 4 54 18 0 0 0
VODI 0 202 19 224 150 2 0 0
ODI 0 9 1 31 120 32 0 0
CDI 0 11 1 7 54 172 20 0
VCDI 0 5 1 25 50 1087 3559 203
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 272 10 88 36 0 0 0
OW 0 112 8 105 82 0 0 0
VODI 0 62 11 72 98 9 0 0
ODI 0 11 2 47 44 50 0 0
CDI 0 9 1 12 56 113 20 0
VCDI 0 13 1 28 76 1121 3559 203

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6808 3184 29 71 6 0 0 0
OW 0 70 20 149 61 0 0 0
VODI 0 12 2 67 151 19 0 0
ODI 0 5 1 13 97 26 0 0
CDI 0 2 2 14 69 42 5 0
VCDI 0 0 0 2 36 221 147 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6808 3133 26 74 9 0 0 0
OW 0 88 16 67 23 0 0 0
VODI 0 30 7 98 66 0 0 0
ODI 0 12 1 52 69 19 0 0
CDI 0 8 2 12 143 16 0 0
VCDI 0 2 2 13 110 273 152 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 6277 2860 12 37 0 0 0 0
OW 0 25 4 142 8 0 0 0
VODI 0 1 1 73 103 0 0 0
ODI 0 0 0 6 124 14 0 0
CDI 0 0 0 0 72 162 9 0
VCDI 0 0 0 0 16 307 1443 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6277 2809 5 63 1 0 0 0
OW 0 67 9 86 37 0 0 0
VODI 0 9 2 74 79 8 0 0
ODI 0 1 1 29 72 43 0 0
CDI 0 0 0 6 101 110 7 0
VCDI 0 0 0 0 33 322 1445 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 9963 2225 26 139 171 183 19 0
OW 0 9 7 36 16 18 0 0
VODI 0 0 0 28 35 11 0 0
ODI 0 0 0 0 49 15 0 0
CDI 0 0 0 0 13 25 0 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9963 2234 33 174 197 202 19 0
OW 0 0 0 25 22 14 0 0
VODI 0 0 0 4 46 16 0 0
ODI 0 0 0 0 19 10 0 0
CDI 0 0 0 0 0 10 0 0
VCDI 0 0 0 0 0 0 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 0 555 39 124 1 0 0 0
OW 0 2 1 102 56 0 0 0
VODI 0 0 0 26 137 4 0 0
ODI 0 0 0 1 100 27 0 0
CDI 0 0 0 0 83 69 4 0
VCDI 0 0 0 0 39 1173 2719 541
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 545 34 81 1 0 0 0
OW 0 12 6 93 34 0 0 0
VODI 0 0 0 70 89 4 0 0
ODI 0 0 0 9 104 15 0 0
CDI 0 0 0 0 102 41 1 0
VCDI 0 0 0 0 86 1213 2722 541

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 54 9 30 4 0 0 0
OW 0 76 3 34 31 1 0 0
VODI 0 12 3 18 291 92 0 0
ODI 0 0 1 0 193 311 0 0
CDI 0 0 0 0 41 414 261 0
VCDI 0 0 0 0 6 1236 4820 646
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 67 9 44 8 1 0 0
OW 0 65 3 27 47 6 0 0
VODI 0 8 2 10 243 62 1 0
ODI 0 2 2 1 137 203 101 0
CDI 0 0 0 0 76 334 204 0
VCDI 0 0 0 0 55 1448 4775 646

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 15563 2938 31 49 3 0 0 0
OW 25 161 26 205 67 0 0 0
VODI 4 124 5 96 184 0 0 0
ODI 0 2 1 7 192 1 0 0
CDI 0 0 0 0 88 97 1 0
VCDI 0 0 0 0 16 269 54 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 15581 2902 22 74 14 0 0 0
OW 11 239 20 100 61 0 0 0
VODI 0 84 21 126 109 0 0 0
ODI 0 0 0 50 122 0 0 0
CDI 0 0 0 7 144 13 0 0
VCDI 0 0 0 0 100 354 55 0


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