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: 2019-11-21

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-11-25

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 48 3 28 13 13 0 0
OW 0 3 0 24 18 110 0 0
VODI 0 1 2 26 42 130 0 0
ODI 0 0 0 20 92 145 61 0
CDI 0 0 0 0 84 243 116 0
VCDI 0 0 0 0 22 2599 10981 22078
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 48 3 28 4 2 0 0
OW 0 1 0 22 16 48 0 0
VODI 0 2 0 14 39 155 3 0
ODI 0 1 2 3 45 152 50 0
CDI 0 0 0 19 48 109 106 0
VCDI 0 0 0 12 119 2774 10999 22078

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 8 8 5 6
VCDI 0 0 0 0 10 238 1641 1217
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 1 8 1 0
VCDI 0 0 0 0 17 238 1645 1223

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 1 3 7 0
OW 0 0 0 0 5 14 17 0
VODI 0 0 0 0 2 15 63 0
ODI 0 0 0 0 0 14 99 0
CDI 0 0 0 0 0 52 190 0
VCDI 0 0 0 0 0 1298 4602 3600
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 3 0
OW 0 0 0 0 5 15 18 0
VODI 0 0 0 0 1 17 59 0
ODI 0 0 0 0 0 12 72 0
CDI 0 0 0 0 0 20 90 0
VCDI 0 0 0 0 0 1332 4736 3600

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 78 3294 48 253 166 34 0 0
OW 0 86 12 118 248 66 17 0
VODI 0 2 2 24 215 197 52 0
ODI 0 0 0 0 48 263 9 0
CDI 0 0 0 0 4 119 40 0
VCDI 0 0 0 0 0 117 142 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 78 3154 43 166 117 35 0 0
OW 0 224 17 163 235 66 0 0
VODI 0 4 2 56 209 153 64 0
ODI 0 0 0 10 77 177 5 0
CDI 0 0 0 0 40 143 15 0
VCDI 0 0 0 0 3 222 176 0

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 3 0 0 0 0
OW 0 0 0 16 1 0 0 0
VODI 0 0 0 9 24 0 0 0
ODI 0 0 0 0 24 21 0 0
CDI 0 0 0 0 6 82 0 48
VCDI 0 0 0 0 0 381 1454 5177
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 3 0 0 0 0
VODI 0 0 0 16 4 0 0 0
ODI 0 0 0 9 26 7 0 5
CDI 0 0 0 0 16 24 0 88
VCDI 0 0 0 0 9 453 1454 5132

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 17 18
VCDI 0 0 0 0 0 71 2017 3199
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 26 25
VCDI 0 0 0 0 0 74 2008 3192

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 596 9 123 138 0 0 0
OW 0 139 23 104 59 3 0 0
VODI 0 13 11 243 218 46 0 0
ODI 0 1 0 32 263 157 0 0
CDI 0 0 0 2 50 840 143 1
VCDI 0 0 0 0 6 400 2579 132
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 621 11 146 188 14 0 0
OW 0 87 12 50 40 34 0 0
VODI 0 40 20 212 192 75 0 0
ODI 0 1 0 93 158 213 29 0
CDI 0 0 0 3 119 337 120 0
VCDI 0 0 0 0 37 773 2573 133

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5822 3626 42 233 133 1 0 0
OW 0 37 7 51 112 19 0 0
VODI 0 5 3 23 97 93 0 0
ODI 0 0 0 2 26 186 0 0
CDI 0 0 0 3 23 259 57 0
VCDI 0 0 0 0 11 227 233 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5822 3625 40 247 170 3 0 0
OW 0 27 11 32 112 19 0 0
VODI 0 14 1 25 60 102 0 0
ODI 0 2 0 4 21 135 0 0
CDI 0 0 0 3 18 196 35 0
VCDI 0 0 0 1 21 330 255 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 5322 2861 28 133 29 0 0 0
OW 0 17 7 91 54 3 0 0
VODI 0 1 2 49 129 23 0 0
ODI 0 0 0 5 104 52 0 0
CDI 0 0 0 0 38 314 31 0
VCDI 0 0 0 0 1 344 2058 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5322 2847 27 125 30 0 0 0
OW 0 27 8 95 45 3 0 0
VODI 0 5 2 45 121 25 0 0
ODI 0 0 0 13 101 70 3 0
CDI 0 0 0 0 47 236 30 0
VCDI 0 0 0 0 11 402 2056 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 10807 1700 19 99 108 42 0 0
OW 0 17 5 25 5 5 0 0
VODI 0 0 0 25 19 5 0 0
ODI 0 0 0 1 32 18 0 0
CDI 0 0 0 0 12 44 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 10807 1712 24 129 115 45 0 0
OW 0 5 0 17 25 6 0 0
VODI 0 0 0 4 24 23 0 0
ODI 0 0 0 0 11 33 0 0
CDI 0 0 0 0 1 7 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 1024 1871 28 164 48 5 0 0
OW 0 47 6 93 87 31 0 0
VODI 0 16 6 49 92 88 0 0
ODI 0 0 0 25 151 139 0 0
CDI 0 0 0 0 78 378 11 0
VCDI 0 0 0 0 45 741 580 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1024 1786 24 179 74 39 0 0
OW 0 60 5 38 73 72 0 0
VODI 0 54 4 52 45 122 0 0
ODI 0 34 4 31 79 196 4 0
CDI 0 0 3 31 148 327 26 0
VCDI 0 0 0 0 82 626 561 0

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3318 3432 19 161 5 0 0 0
OW 19 179 22 147 100 0 0 0
VODI 1 14 4 138 309 0 0 0
ODI 0 0 0 4 270 73 0 0
CDI 0 0 0 2 80 191 0 0
VCDI 0 0 0 0 35 64 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3304 3025 8 32 0 0 0 0
OW 30 392 23 95 3 0 0 0
VODI 4 207 13 191 186 4 0 0
ODI 0 1 1 78 243 78 0 0
CDI 0 0 0 54 296 99 0 0
VCDI 0 0 0 2 71 147 0 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 18627 1551 4 5 0 0 0 0
OW 5 8 1 1 0 0 0 0
VODI 0 0 1 3 0 0 0 0
ODI 0 0 0 3 0 0 0 0
CDI 0 0 0 0 0 0 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 18618 1542 4 4 0 0 0 0
OW 14 16 0 1 0 0 0 0
VODI 0 1 2 3 0 0 0 0
ODI 0 0 0 4 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0


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