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: 2017-04-27

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2017-05-01

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 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 7 5 0 0
ODI 0 0 0 0 4 22 0 0
CDI 0 0 0 0 2 80 10 0
VCDI 0 0 0 0 11 835 6595 29331
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 1 0 0 0
VODI 0 0 0 0 6 8 0 0
ODI 0 0 0 0 4 24 0 0
CDI 0 0 0 0 2 72 9 0
VCDI 0 0 0 0 11 838 6596 29331

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 11 159 731 2232
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 11 159 731 2232

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 2 1 0
CDI 0 0 0 0 0 37 55 16
VCDI 0 0 0 0 0 342 1707 7822
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 10 11 0
CDI 0 0 0 0 0 55 59 27
VCDI 0 0 0 0 0 316 1693 7811

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 1 6 0 0 0
OW 0 0 0 1 18 0 0 0
VODI 0 0 0 61 75 0 0 0
ODI 0 0 0 37 167 4 0 0
CDI 0 0 0 51 236 11 0 0
VCDI 0 0 0 31 142 363 2751 1699
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 7 0 0 0
OW 0 0 0 1 26 0 0 0
VODI 0 0 0 9 58 0 0 0
ODI 0 0 0 21 72 6 0 0
CDI 0 0 0 38 129 11 4 0
VCDI 0 0 0 112 352 361 2747 1699

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 2 3 0 0 0
ODI 0 0 0 12 7 0 0 0
CDI 0 0 0 53 70 8 11 0
VCDI 0 0 0 10 120 526 4065 2359
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 0 0
CDI 0 0 0 45 42 10 108 10
VCDI 0 0 0 32 157 524 3968 2349

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 4 4 5
VCDI 0 0 0 0 0 361 2861 2091
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 4 9 18
VCDI 0 0 0 0 0 361 2856 2078

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 5 23 41 0 0 0 0
OW 0 0 0 13 1 0 0 0
VODI 0 0 0 13 9 0 0 0
ODI 0 0 0 3 24 28 0 0
CDI 0 0 0 0 49 122 29 0
VCDI 0 0 0 0 70 1104 4483 314
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 4 22 39 0 0 0 0
OW 0 1 1 12 0 0 0 0
VODI 0 0 0 13 7 0 0 0
ODI 0 0 0 6 10 13 1 0
CDI 0 0 0 0 39 95 40 0
VCDI 0 0 0 0 97 1146 4471 314

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 5502 2079 520 91 11 0 0
OW 0 18 19 143 68 16 0 0
VODI 0 12 0 74 153 27 0 0
ODI 0 3 0 24 173 59 0 0
CDI 0 0 0 4 159 282 0 0
VCDI 0 0 0 9 56 883 946 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 5497 2038 445 108 20 0 0
OW 0 17 40 125 53 20 0 0
VODI 0 13 19 137 169 37 0 0
ODI 0 8 1 42 138 60 0 0
CDI 0 0 0 15 168 327 14 0
VCDI 0 0 0 10 64 814 932 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 3331 4090 430 149 2 0 0 0
OW 0 0 6 168 9 0 0 0
VODI 0 0 0 162 42 0 0 0
ODI 0 0 0 56 147 8 0 0
CDI 0 0 0 2 329 374 13 0
VCDI 0 0 0 0 14 1603 761 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3331 4090 416 179 5 0 0 0
OW 0 0 18 127 21 0 0 0
VODI 0 0 2 125 55 5 0 0
ODI 0 0 0 61 93 22 0 0
CDI 0 0 0 45 255 217 14 0
VCDI 0 0 0 0 114 1741 760 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 6371 4427 915 332 67 22 0 0
OW 0 0 0 113 47 1 0 0
VODI 0 0 0 44 96 18 0 0
ODI 0 0 0 3 108 103 7 0
CDI 0 0 0 0 40 206 31 0
VCDI 0 0 0 0 0 16 21 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6371 4421 902 334 100 22 0 0
OW 0 6 13 97 47 15 0 0
VODI 0 0 0 54 80 45 5 0
ODI 0 0 0 7 92 103 14 0
CDI 0 0 0 0 39 165 24 0
VCDI 0 0 0 0 0 16 16 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 14 0 0 0 0
OW 0 0 0 19 0 0 0 0
VODI 0 0 0 40 9 0 0 0
ODI 0 0 0 20 37 0 0 0
CDI 0 0 0 18 80 20 8 0
VCDI 0 0 0 25 261 1187 3347 718
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 26 0 0 0 0
OW 0 0 0 13 0 0 0 0
VODI 0 0 0 18 12 0 0 0
ODI 0 0 0 16 29 1 0 0
CDI 0 0 0 21 59 30 4 0
VCDI 0 0 0 42 287 1176 3351 718

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 26 2 0 0
CDI 0 0 0 0 134 43 29 0
VCDI 0 0 0 0 303 1541 5052 1457
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 1 0 0 0
ODI 0 0 0 0 52 5 0 0
CDI 0 0 0 0 123 36 42 0
VCDI 0 0 0 0 287 1545 5039 1457

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7012 6108 1147 860 26 0 0 0
OW 0 5 14 309 161 4 0 0
VODI 0 0 0 173 464 26 1 0
ODI 0 0 0 5 651 205 3 0
CDI 0 0 0 11 299 1027 89 0
VCDI 0 0 0 2 203 911 493 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7012 6113 1161 1156 136 6 0 0
OW 0 0 0 149 343 34 0 0
VODI 0 0 0 42 429 248 3 0
ODI 0 0 0 0 319 306 13 0
CDI 0 0 0 2 259 496 68 0
VCDI 0 0 0 11 318 1083 502 0


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