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: 2019-03-14

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-03-18

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 0 0 12 48 20 0 0
OW 0 0 0 4 11 28 4 0
VODI 0 0 0 14 20 37 10 0
ODI 0 0 0 22 11 32 26 0
CDI 0 0 0 8 19 23 72 0
VCDI 0 0 0 3 6 94 4645 31733
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 11 47 25 2 0
OW 0 0 0 4 16 31 5 0
VODI 0 0 0 6 13 37 16 0
ODI 0 0 0 8 7 27 41 0
CDI 0 0 0 19 4 19 77 0
VCDI 0 0 0 15 28 95 4616 31733

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 5 0 1
VCDI 0 0 0 0 24 133 1260 1710
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 5 0 0
VCDI 0 0 0 0 24 133 1260 1711

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 6 23 0 0
CDI 0 0 0 0 15 88 15 4
VCDI 0 0 0 0 16 278 2419 7118
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 2 6 0 0
CDI 0 0 0 0 12 63 17 5
VCDI 0 0 0 0 23 320 2417 7117

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 0 9 0 0
CDI 0 0 0 0 9 37 9 0
VCDI 0 0 0 0 0 281 1851 3456
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 8 3 0
CDI 0 0 0 0 0 22 12 0
VCDI 0 0 0 0 9 294 1845 3456

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 0
VCDI 0 0 0 0 0 0 0 7246
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 0 7246

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 3 2 19
VCDI 0 0 0 0 0 36 694 4572
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 3 26
VCDI 0 0 0 0 0 39 693 4565

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 0 0 0 0
OW 0 0 0 0 1 0 0 0
VODI 0 0 0 0 35 1 0 0
ODI 0 0 0 3 75 26 0 0
CDI 0 0 0 0 58 93 11 1
VCDI 0 0 0 0 53 438 3810 1726
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 17 1 0 0
ODI 0 0 0 0 34 15 0 0
CDI 0 0 0 3 82 57 16 2
VCDI 0 0 0 0 89 485 3805 1725

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3097 3381 36 225 143 64 18 0
OW 0 81 22 132 123 23 14 0
VODI 0 22 4 125 270 42 12 0
ODI 0 4 2 41 277 85 18 0
CDI 0 0 0 6 148 336 28 0
VCDI 0 0 0 9 62 708 1773 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3097 3366 33 216 163 78 25 0
OW 0 92 16 97 70 42 14 0
VODI 0 24 13 145 213 44 23 0
ODI 0 6 2 41 244 72 24 0
CDI 0 0 0 16 179 219 43 0
VCDI 0 0 0 23 154 803 1734 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 4950 3488 18 75 2 0 0 0
OW 0 153 13 64 11 0 0 0
VODI 0 67 15 124 36 1 0 0
ODI 0 8 5 52 99 1 0 0
CDI 0 0 0 23 127 15 0 0
VCDI 0 0 0 1 158 509 1643 38
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4950 3446 20 94 2 0 0 0
OW 0 143 10 58 16 0 0 0
VODI 0 77 10 79 35 1 0 0
ODI 0 37 6 53 76 1 0 0
CDI 0 13 5 29 99 14 0 0
VCDI 0 0 0 26 205 510 1643 38

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8432 3122 30 137 93 11 0 0
OW 0 151 21 53 37 1 0 0
VODI 0 28 17 77 78 19 0 0
ODI 0 0 0 35 75 36 0 0
CDI 0 0 0 7 77 85 28 0
VCDI 0 0 0 0 45 188 105 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8432 3117 34 173 134 28 0 0
OW 0 126 12 35 58 11 0 0
VODI 0 53 12 30 66 32 0 0
ODI 0 5 10 33 18 58 2 0
CDI 0 0 0 33 42 49 40 0
VCDI 0 0 0 5 87 162 91 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 3 0 0 0
OW 0 2 0 5 5 0 0 0
VODI 0 0 0 17 17 3 0 0
ODI 0 0 0 7 17 10 0 0
CDI 0 0 0 3 44 15 0 0
VCDI 0 0 0 0 196 1042 2818 1599
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 2 0 8 8 1 0 0
VODI 0 0 0 12 15 10 0 0
ODI 0 0 0 7 20 10 0 0
CDI 0 0 0 5 30 15 0 0
VCDI 0 0 0 0 207 1034 2818 1599

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 1 0 0 0
CDI 0 0 0 0 11 16 3 1
VCDI 0 0 0 0 5 206 2009 6335
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 4 2 5
VCDI 0 0 0 0 9 218 2010 6331

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10019 4978 70 383 182 11 0 0
OW 0 551 35 226 158 23 0 0
VODI 0 335 29 251 203 55 0 0
ODI 0 48 4 60 214 87 0 0
CDI 0 0 0 0 154 327 13 0
VCDI 0 0 0 0 31 742 1020 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10019 5048 78 416 273 57 0 0
OW 0 290 27 147 141 56 0 0
VODI 0 266 19 252 221 111 0 0
ODI 0 157 13 73 140 141 5 0
CDI 0 151 1 32 106 204 10 0
VCDI 0 0 0 0 61 676 1018 0


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