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: 2018-11-22

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-11-26

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 0 681 23 147 39 0 0 0
OW 0 16 1 48 66 1 0 0
VODI 0 8 0 45 88 12 0 0
ODI 0 2 0 26 66 29 0 0
CDI 0 0 0 2 83 68 0 0
VCDI 0 0 0 0 72 680 8640 26059
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 663 20 111 39 0 0 0
OW 0 21 3 38 39 4 0 0
VODI 0 18 1 58 63 15 0 0
ODI 0 5 0 45 57 31 0 0
CDI 0 0 0 16 66 50 0 0
VCDI 0 0 0 0 150 690 8640 26059

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 4
VCDI 0 0 0 0 0 142 463 2524
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 2
VCDI 0 0 0 0 0 142 463 2526

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 65 56 3
VCDI 0 0 0 0 0 235 2125 7498
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 27 10 3
VCDI 0 0 0 0 0 273 2171 7498

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 2268 16 137 18 4 0 0
OW 2 154 25 204 108 33 6 0
VODI 0 10 4 95 231 68 11 0
ODI 0 0 1 16 154 215 20 0
CDI 0 0 0 3 91 107 31 0
VCDI 0 0 0 0 17 578 1019 8
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 2124 9 40 52 16 1 0
OW 2 252 20 143 38 38 7 0
VODI 0 56 16 178 164 111 11 0
ODI 0 0 1 60 163 128 12 0
CDI 0 0 0 28 138 143 19 0
VCDI 0 0 0 6 64 569 1037 8

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 20 4 0 0
ODI 0 0 0 0 13 21 0 0
CDI 0 0 0 0 1 33 0 0
VCDI 0 0 0 0 0 129 1630 5395
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 17 4 0 0
ODI 0 0 0 0 10 16 0 0
CDI 0 0 0 0 6 44 0 0
VCDI 0 0 0 0 0 123 1630 5395

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 7 53 17 4
VCDI 0 0 0 0 0 374 3453 1418
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 38 11 15
VCDI 0 0 0 0 5 389 3459 1407

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 733 19 72 47 4 0 0
OW 0 39 13 81 25 22 0 0
VODI 0 17 4 89 112 44 8 0
ODI 0 0 0 23 143 121 50 0
CDI 0 0 0 0 48 147 233 28
VCDI 0 0 0 0 5 344 3255 605
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 652 22 72 58 22 0 0
OW 0 94 3 33 28 29 1 0
VODI 0 31 7 82 52 33 27 0
ODI 0 8 2 43 59 84 67 0
CDI 0 4 2 32 147 123 211 29
VCDI 0 0 0 3 36 391 3240 604

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7923 2519 32 133 37 5 0 0
OW 0 4 1 51 67 12 0 0
VODI 0 0 0 6 58 53 0 0
ODI 0 0 0 0 18 89 10 0
CDI 0 0 0 0 3 62 53 0
VCDI 0 0 0 0 0 18 177 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7923 2493 23 72 27 4 0 0
OW 0 23 7 62 30 15 0 0
VODI 0 7 3 48 46 40 0 0
ODI 0 0 0 8 63 64 4 0
CDI 0 0 0 0 17 73 39 0
VCDI 0 0 0 0 0 43 197 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 6392 2521 23 65 5 0 0 0
OW 0 28 12 107 51 0 0 0
VODI 0 13 0 74 143 17 0 0
ODI 0 3 2 12 136 65 0 0
CDI 0 0 0 3 106 414 0 0
VCDI 0 0 0 0 55 1048 401 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6392 2493 21 73 21 0 0 0
OW 0 48 12 86 38 2 0 0
VODI 0 15 1 75 88 33 0 0
ODI 0 7 2 14 101 58 0 0
CDI 0 2 1 13 147 118 0 0
VCDI 0 0 0 0 101 1333 401 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 10052 2130 33 237 223 72 0 0
OW 0 0 0 34 41 16 0 0
VODI 0 0 0 3 97 6 0 0
ODI 0 0 0 0 37 7 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 10052 2130 33 268 265 94 0 0
OW 0 0 0 6 85 0 0 0
VODI 0 0 0 0 33 2 0 0
ODI 0 0 0 0 15 5 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 0 732 7 9 0 0 0 0
OW 0 79 12 35 1 0 0 0
VODI 0 37 5 77 17 0 0 0
ODI 0 8 7 63 63 0 0 0
CDI 0 0 0 27 135 28 0 0
VCDI 0 0 0 4 178 1069 3093 117
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 562 3 0 0 0 0 0
OW 0 85 3 9 0 0 0 0
VODI 0 92 6 20 4 0 0 0
ODI 0 64 9 38 11 0 0 0
CDI 0 43 4 78 37 9 0 0
VCDI 0 10 6 70 342 1088 3093 117

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 363 1809 23 48 7 0 0 0
OW 0 300 46 486 64 0 0 0
VODI 0 142 20 417 660 120 0 0
ODI 0 53 6 58 357 461 49 0
CDI 0 3 2 14 134 447 142 0
VCDI 0 1 0 17 130 1751 457 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 363 1955 44 394 167 9 0 0
OW 0 112 24 318 247 78 0 0
VODI 0 96 16 179 443 353 17 0
ODI 0 54 8 74 165 212 104 0
CDI 0 73 3 30 150 316 84 0
VCDI 0 18 2 45 180 1811 443 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 16041 3163 16 9 0 0 0 0
OW 0 185 21 64 1 0 0 0
VODI 0 38 12 83 31 0 0 0
ODI 0 3 2 33 84 8 0 0
CDI 0 0 0 10 119 24 0 0
VCDI 0 0 0 0 40 212 10 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 16041 2997 9 9 0 0 0 0
OW 0 243 4 16 0 0 0 0
VODI 0 107 26 55 10 0 0 0
ODI 0 35 7 59 29 0 0 0
CDI 0 7 5 40 68 6 0 0
VCDI 0 0 0 20 168 238 10 0


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