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: 2018-07-05

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-07-09

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 97 1376 22 52 1 0 0 0
OW 0 85 26 283 8 0 0 0
VODI 0 1 2 393 324 0 0 0
ODI 0 0 0 42 1290 75 0 0
CDI 0 0 0 12 1378 10466 71 0
VCDI 0 0 0 0 285 17372 3240 1
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 97 1424 34 199 6 0 0 0
OW 0 33 11 317 123 0 0 0
VODI 0 5 5 202 662 19 0 0
ODI 0 0 0 26 697 692 1 0
CDI 0 0 0 38 900 7129 72 0
VCDI 0 0 0 0 898 20073 3238 1

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 0 198 5 32 30 0 0 0
OW 0 0 0 12 9 0 0 0
VODI 0 0 0 20 38 0 0 0
ODI 0 1 0 17 100 34 0 0
CDI 0 0 0 0 178 797 7 0
VCDI 0 2 0 7 210 1021 415 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 198 5 33 31 0 0 0
OW 0 0 0 13 14 0 0 0
VODI 0 0 0 17 27 0 0 0
ODI 0 1 0 17 105 31 0 0
CDI 0 0 0 1 158 710 2 0
VCDI 0 2 0 7 230 1111 420 0

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 449 12 99 12 0 0 0
OW 0 35 4 57 17 6 0 0
VODI 0 16 6 175 55 18 0 0
ODI 0 0 0 153 483 77 0 0
CDI 0 0 0 10 3088 2012 0 0
VCDI 0 0 0 0 844 1956 398 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 457 15 147 21 10 0 0
OW 0 17 3 60 34 20 0 0
VODI 0 18 1 33 107 45 0 0
ODI 0 8 3 53 122 142 0 0
CDI 0 0 0 201 1649 1284 0 0
VCDI 0 0 0 0 2566 2568 398 0

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 913 1736 27 165 13 0 0 0
OW 1 21 16 172 70 0 0 0
VODI 0 0 0 90 219 3 0 0
ODI 0 0 0 1 467 56 0 0
CDI 0 0 0 0 211 1473 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 913 1742 35 333 218 0 0 0
OW 1 15 8 57 214 4 0 0
VODI 0 0 0 38 236 57 0 0
ODI 0 0 0 0 123 276 0 0
CDI 0 0 0 0 185 1191 0 0
VCDI 0 0 0 0 4 4 0 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 0 140 7 29 3 0 0 0
OW 0 18 5 99 29 0 0 0
VODI 0 1 1 100 203 3 0 0
ODI 0 1 3 37 1456 44 0 0
CDI 0 0 0 20 1686 3314 0 0
VCDI 0 0 0 1 0 46 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 115 7 84 117 0 0 0
OW 0 38 4 59 337 0 0 0
VODI 0 6 2 69 435 31 0 0
ODI 0 0 0 28 367 109 0 0
CDI 0 1 3 45 1336 2143 0 0
VCDI 0 0 0 1 785 1124 0 0

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 2276 67 311 79 0 0 0
OW 0 31 22 273 63 0 0 0
VODI 0 14 2 264 341 1 0 0
ODI 0 1 2 2 947 13 0 0
CDI 0 0 0 0 43 574 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 0 2229 75 472 177 0 0 0
OW 0 72 11 237 219 0 0 0
VODI 0 19 5 128 737 9 0 0
ODI 0 2 2 13 339 579 0 0
CDI 0 0 0 0 1 0 0 0
VCDI 0 0 0 0 0 0 0 0

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 2185 44 345 238 149 4 0
OW 0 312 53 465 150 54 0 0
VODI 0 33 8 462 652 61 0 0
ODI 0 0 0 0 1016 52 0 0
CDI 0 0 0 0 13 35 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 0 2226 68 678 437 224 4 0
OW 0 226 22 326 635 54 0 0
VODI 0 78 15 265 952 59 0 0
ODI 0 0 0 3 45 13 0 0
CDI 0 0 0 0 0 1 0 0
VCDI 0 0 0 0 0 0 0 0

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9266 1846 15 54 2 0 0 0
OW 0 0 1 61 0 0 0 0
VODI 0 0 0 43 22 0 0 0
ODI 0 0 0 0 21 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 9266 1846 13 84 2 0 0 0
OW 0 0 3 74 43 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 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 7139 2690 34 221 12 0 0 0
OW 0 5 4 197 58 0 0 0
VODI 0 0 0 174 216 11 0 0
ODI 0 0 0 6 614 68 0 0
CDI 0 0 0 0 15 158 31 0
VCDI 0 0 0 0 0 0 43 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7139 2695 38 372 78 0 0 0
OW 0 0 0 120 143 0 0 0
VODI 0 0 0 57 287 21 0 0
ODI 0 0 0 46 308 87 0 0
CDI 0 0 0 3 99 129 74 0
VCDI 0 0 0 0 0 0 0 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 12931 57 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 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12930 57 0 0 0 0 0 0
OW 1 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 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 25 2926 93 555 112 20 0 0
OW 0 26 11 259 82 19 0 0
VODI 0 0 0 137 372 20 0 0
ODI 0 0 0 0 768 131 0 0
CDI 0 0 0 0 13 234 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 25 2908 88 692 239 32 0 0
OW 0 44 16 151 296 20 0 0
VODI 0 0 0 94 499 258 0 0
ODI 0 0 0 14 313 114 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 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 904 2962 89 884 93 2 0 0
OW 0 140 26 469 109 6 0 0
VODI 0 3 1 325 1248 33 0 0
ODI 0 0 0 28 826 89 0 0
CDI 0 0 0 0 111 176 0 0
VCDI 0 0 0 0 0 63 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 904 2994 98 1164 471 15 0 0
OW 0 102 16 302 626 17 0 0
VODI 0 9 2 197 1000 39 0 0
ODI 0 0 0 22 115 70 0 0
CDI 0 0 0 21 113 88 0 0
VCDI 0 0 0 0 62 140 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 17063 2097 48 415 73 0 0 0
OW 0 11 9 84 66 0 0 0
VODI 0 0 0 53 124 2 0 0
ODI 0 0 0 1 134 12 0 0
CDI 0 0 0 0 0 17 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 17063 2092 51 429 108 0 0 0
OW 0 16 6 77 76 0 0 0
VODI 0 0 0 47 194 18 0 0
ODI 0 0 0 0 19 10 0 0
CDI 0 0 0 0 0 3 0 0
VCDI 0 0 0 0 0 0 0 0


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