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: 2018-03-22

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-03-26

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 0 509 14 67 30 0 0 0
OW 0 32 7 43 33 2 0 0
VODI 0 1 2 47 63 14 0 0
ODI 0 0 0 18 66 27 0 0
CDI 0 0 0 6 98 112 15 0
VCDI 0 0 0 15 73 737 4367 30504
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 507 13 58 29 0 0 0
OW 0 28 8 39 35 5 0 0
VODI 0 7 2 53 53 15 0 0
ODI 0 0 0 22 59 24 0 0
CDI 0 0 0 3 60 46 1 0
VCDI 0 0 0 21 127 802 4381 30504

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 8 0
VCDI 0 0 0 0 0 56 823 2246
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 56 831 2246

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 2 4 0
VCDI 0 0 0 0 0 103 1570 8303
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 12
VCDI 0 0 0 0 0 105 1567 8291

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 2 0 0
ODI 0 0 0 0 2 60 12 0
CDI 0 0 0 0 16 115 59 6
VCDI 0 0 0 0 3 172 2232 2975
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 91 0 0
ODI 0 0 0 0 0 68 15 0
CDI 0 0 0 0 10 65 83 0
VCDI 0 0 0 0 11 125 2205 2981

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 30
VCDI 0 0 0 0 0 0 0 7216
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 34
VCDI 0 0 0 0 0 0 0 7212

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 35
VCDI 0 0 0 0 0 0 99 5192
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 99 5227

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 25 0 0 0
OW 0 0 0 0 19 0 0 0
VODI 0 0 0 0 15 4 0 0
ODI 0 0 0 0 4 8 0 0
CDI 0 0 0 0 6 30 6 0
VCDI 0 0 0 0 6 59 3211 2938
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 21 0 0 0
OW 0 0 0 0 22 3 0 0
VODI 0 0 0 0 11 5 0 0
ODI 0 0 0 0 7 8 0 0
CDI 0 0 0 0 7 22 3 0
VCDI 0 0 0 0 7 63 3214 2938

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2898 3843 49 254 76 1 0 0
OW 0 61 18 143 99 11 0 0
VODI 0 10 8 95 169 31 0 0
ODI 0 0 0 35 170 79 0 0
CDI 0 0 0 11 194 280 2 0
VCDI 0 0 0 15 131 1333 1315 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2898 3795 39 222 79 6 0 0
OW 0 82 15 111 68 10 0 0
VODI 0 33 17 95 134 33 0 0
ODI 0 4 4 65 124 56 0 0
CDI 0 0 0 42 195 185 2 0
VCDI 0 0 0 18 239 1445 1315 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 5391 3607 17 64 7 0 0 0
OW 0 113 10 82 13 0 0 0
VODI 0 28 12 146 75 0 0 0
ODI 0 0 1 24 150 1 0 0
CDI 0 0 0 0 93 153 17 0
VCDI 0 0 0 0 7 322 1354 9
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5391 3568 19 70 6 0 0 0
OW 0 117 9 71 7 0 0 0
VODI 0 57 9 85 66 0 0 0
ODI 0 6 3 66 90 7 0 0
CDI 0 0 0 24 151 96 16 0
VCDI 0 0 0 0 25 373 1355 9

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8806 3053 20 124 130 19 0 0
OW 0 144 21 58 39 4 0 0
VODI 0 33 22 79 65 16 0 0
ODI 0 0 0 23 122 86 8 0
CDI 0 0 0 0 33 51 25 0
VCDI 0 0 0 0 0 1 6 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8806 3079 38 183 195 25 0 0
OW 0 87 6 19 52 29 0 0
VODI 0 51 10 31 36 34 6 0
ODI 0 13 8 31 53 66 20 0
CDI 0 0 1 20 53 23 13 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 0 0 0 0 0 0 0
OW 0 0 0 0 5 0 0 0
VODI 0 0 0 0 8 0 0 0
ODI 0 0 0 0 6 0 0 0
CDI 0 0 0 0 6 5 2 0
VCDI 0 0 0 0 9 187 2038 3537
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 2 0 0 0
OW 0 0 0 0 3 0 0 0
VODI 0 0 0 0 7 0 0 0
ODI 0 0 0 0 6 1 0 0
CDI 0 0 0 0 6 7 0 0
VCDI 0 0 0 0 10 184 2040 3537

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 5 0 0
ODI 0 0 0 0 0 122 8 0
CDI 0 0 0 0 5 302 76 3
VCDI 0 0 0 0 9 477 4390 3190
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 16 3 0
ODI 0 0 0 0 0 128 34 0
CDI 0 0 0 0 1 277 74 4
VCDI 0 0 0 0 13 485 4363 3189

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10482 4546 51 273 126 176 13 0
OW 0 190 21 262 192 53 16 0
VODI 0 2 2 160 416 114 20 0
ODI 0 0 0 1 321 236 67 0
CDI 0 0 0 0 127 473 266 0
VCDI 0 0 0 0 70 400 1123 10
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10482 4520 61 327 202 207 22 0
OW 0 165 5 175 152 95 30 0
VODI 0 53 8 162 334 173 58 0
ODI 0 0 0 32 305 183 61 0
CDI 0 0 0 0 139 305 131 0
VCDI 0 0 0 0 120 489 1203 10


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