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: 2017-12-07

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2017-12-11

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 0 631 9 48 11 1 0 0
OW 0 57 7 60 21 5 0 0
VODI 0 8 7 81 59 17 0 0
ODI 0 0 0 11 92 17 0 0
CDI 0 0 0 0 118 140 0 0
VCDI 0 0 0 0 57 1743 10857 22845
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 546 4 27 11 1 0 0
OW 0 70 8 33 12 4 0 0
VODI 0 53 3 59 39 10 0 0
ODI 0 25 5 38 56 25 0 0
CDI 0 2 3 43 94 65 2 0
VCDI 0 0 0 0 146 1818 10855 22845

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 0 0
VCDI 0 0 0 0 0 10 1200 1922
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 11 1200 1922

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 2 18 0 0
VCDI 0 0 0 0 15 360 2430 7157
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 22 0 0
VCDI 0 0 0 0 17 356 2430 7157

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 1125 55 320 61 0 0 0
OW 0 23 7 210 167 13 0 0
VODI 0 0 0 59 275 96 0 0
ODI 0 0 0 4 363 296 0 0
CDI 0 0 0 0 122 485 2 0
VCDI 0 0 0 0 37 562 1336 36
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 718 17 173 63 0 0 0
OW 0 270 20 146 129 42 0 0
VODI 0 147 23 234 235 113 0 0
ODI 0 13 2 40 288 165 0 0
CDI 0 0 0 0 145 281 0 0
VCDI 0 0 0 0 165 851 1338 36

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 8 4 0 0
CDI 0 0 0 0 0 118 91 9
VCDI 0 0 0 0 0 72 991 5953
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 2
VCDI 0 0 0 0 0 182 1082 5960

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 0 111 5215
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 0 111 5215

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 223 5 7 29 10 0 0
OW 0 93 10 78 52 22 0 0
VODI 0 15 2 65 146 64 9 0
ODI 0 11 1 7 78 151 23 0
CDI 0 5 1 25 45 236 235 0
VCDI 0 0 0 0 23 525 4000 135
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 213 6 39 63 30 2 0
OW 0 51 1 24 59 10 3 0
VODI 0 53 9 77 82 51 2 0
ODI 0 12 2 9 66 80 3 0
CDI 0 12 0 9 24 166 58 0
VCDI 0 6 1 24 79 671 4199 135

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7020 3057 38 138 14 0 0 0
OW 0 21 7 223 111 0 0 0
VODI 0 6 2 45 119 17 0 0
ODI 0 2 1 5 103 40 0 0
CDI 0 0 1 7 27 73 4 0
VCDI 0 0 0 2 2 108 138 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7020 2879 22 91 20 0 0 0
OW 0 117 15 66 33 5 0 0
VODI 0 65 8 153 82 11 0 0
ODI 0 18 0 73 107 9 0 0
CDI 0 5 2 23 70 34 2 0
VCDI 0 2 2 14 64 179 140 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 6722 2485 16 43 5 0 0 0
OW 0 33 8 108 29 1 0 0
VODI 0 0 2 80 79 8 0 0
ODI 0 0 0 10 96 38 0 0
CDI 0 0 0 0 83 162 37 0
VCDI 0 0 0 0 5 286 1360 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6722 2471 11 60 18 2 0 0
OW 0 42 10 76 29 4 0 0
VODI 0 5 5 67 63 29 0 0
ODI 0 0 0 32 69 43 6 0
CDI 0 0 0 6 94 99 70 0
VCDI 0 0 0 0 24 318 1321 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 9304 2381 43 268 374 360 63 0
OW 0 0 0 11 34 27 0 0
VODI 0 0 0 0 38 25 0 0
ODI 0 0 0 0 4 36 0 0
CDI 0 0 0 0 0 20 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 9304 2381 43 279 430 409 60 0
OW 0 0 0 0 20 24 3 0
VODI 0 0 0 0 0 33 0 0
ODI 0 0 0 0 0 2 0 0
CDI 0 0 0 0 0 0 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 8 902 17 55 5 0 0 0
OW 0 41 8 104 25 1 0 0
VODI 0 2 4 126 134 4 0 0
ODI 0 0 0 17 190 86 0 0
CDI 0 0 0 10 53 313 14 0
VCDI 0 0 0 0 59 560 3040 25
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8 736 13 47 0 0 0 0
OW 0 132 1 91 31 0 0 0
VODI 0 59 9 119 152 15 0 0
ODI 0 15 3 10 151 181 0 0
CDI 0 3 3 23 34 253 60 0
VCDI 0 0 0 22 98 515 2994 25

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 442 25 191 74 0 0 0
OW 0 13 3 134 278 0 0 0
VODI 0 1 0 21 439 114 0 0
ODI 0 0 0 8 150 667 113 0
CDI 0 0 0 1 83 470 644 0
VCDI 0 0 0 0 25 1693 2998 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 368 22 290 342 1 0 0
OW 0 86 6 53 342 233 4 0
VODI 0 2 0 0 161 378 48 0
ODI 0 0 0 4 78 114 149 0
CDI 0 0 0 8 64 226 326 0
VCDI 0 0 0 0 62 1992 3228 0

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 15364 3378 47 278 28 0 0 0
OW 0 12 7 174 45 0 0 0
VODI 0 0 0 53 232 1 0 0
ODI 0 0 0 0 217 83 0 0
CDI 0 0 0 0 20 267 0 0
VCDI 0 0 0 0 0 3 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 15364 3332 48 264 44 0 0 0
OW 0 56 6 191 73 1 0 0
VODI 0 2 0 50 253 17 0 0
ODI 0 0 0 0 138 72 0 0
CDI 0 0 0 0 34 242 0 0
VCDI 0 0 0 0 0 22 0 0


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