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: 2019-12-05

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-12-09

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 0 99 4 0 0 0 0 0
OW 0 29 3 10 0 0 0 0
VODI 0 3 5 36 2 0 0 0
ODI 0 0 0 22 23 0 0 0
CDI 0 0 0 5 71 60 1 0
VCDI 0 0 0 0 43 2156 11283 23047
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 84 0 0 0 0 0 0
OW 0 28 3 1 0 0 0 0
VODI 0 18 8 20 0 0 0 0
ODI 0 1 1 25 3 0 0 0
CDI 0 0 0 22 21 2 0 0
VCDI 0 0 0 5 115 2214 11284 23047

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 0
VCDI 0 0 0 0 0 6 356 2771
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 6 356 2771

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 2 0 0
CDI 0 0 0 0 1 42 16 0
VCDI 0 0 0 0 22 536 2155 7208
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 1 0 0
CDI 0 0 0 0 0 36 18 0
VCDI 0 0 0 0 23 543 2153 7208

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 1716 69 418 168 0 0 0
OW 0 23 9 220 254 2 0 0
VODI 0 0 1 82 349 92 0 0
ODI 0 0 0 15 236 349 13 0
CDI 0 0 0 0 37 295 33 0
VCDI 0 0 0 0 5 448 819 1
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1526 44 197 135 0 0 0
OW 0 193 24 242 118 0 0 0
VODI 0 20 10 212 314 138 0 0
ODI 0 0 1 69 310 197 10 0
CDI 0 0 0 15 155 271 14 0
VCDI 0 0 0 0 17 580 841 1

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 8 5 0 0 0
ODI 0 0 0 2 25 2 4 0
CDI 0 0 0 0 24 37 36 0
VCDI 0 0 0 0 3 24 705 6371
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 3 0 0 0 0
ODI 0 0 0 6 17 2 0 0
CDI 0 0 0 1 33 7 0 0
VCDI 0 0 0 0 7 54 745 6371

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 22 30 4
VCDI 0 0 0 0 0 152 2530 2588
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 23 36 7
VCDI 0 0 0 0 0 151 2524 2585

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 157 0 4 0 0 0 0
OW 0 36 7 41 20 3 0 0
VODI 0 28 3 26 78 117 2 0
ODI 0 9 4 11 19 110 34 0
CDI 0 0 1 31 42 292 115 0
VCDI 0 0 0 6 68 528 4460 79
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 44 0 4 1 0 0 0
OW 0 47 0 17 31 28 2 0
VODI 0 69 6 29 47 97 42 0
ODI 0 32 2 17 27 62 26 0
CDI 0 29 3 4 6 115 72 0
VCDI 0 9 4 48 115 748 4469 79

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5414 3292 49 237 88 6 0 0
OW 3 23 6 95 143 18 0 0
VODI 2 0 1 38 141 85 0 0
ODI 0 0 0 1 72 100 0 0
CDI 0 0 0 0 90 145 0 0
VCDI 0 0 0 0 11 541 730 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5417 3137 30 205 88 6 0 0
OW 2 107 13 57 84 13 0 0
VODI 0 69 13 66 113 48 0 0
ODI 0 2 0 28 82 83 0 0
CDI 0 0 0 15 103 133 0 0
VCDI 0 0 0 0 75 612 730 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 5177 3419 12 40 1 0 0 0
OW 0 144 15 58 5 0 0 0
VODI 0 38 10 121 25 0 0 0
ODI 0 0 0 68 69 2 0 0
CDI 0 0 0 26 104 31 0 0
VCDI 0 0 0 0 190 922 1219 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5177 3323 12 40 1 0 0 0
OW 0 141 8 49 6 0 0 0
VODI 0 85 9 74 24 1 0 0
ODI 0 46 2 54 37 10 0 0
CDI 0 6 6 61 74 20 0 0
VCDI 0 0 0 35 252 924 1219 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 10254 1996 25 143 147 89 0 0
OW 0 40 5 8 11 28 0 0
VODI 0 3 5 42 10 12 0 0
ODI 0 0 0 26 20 10 0 0
CDI 0 0 0 3 69 15 0 0
VCDI 0 0 0 0 11 16 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10254 1967 25 152 159 111 0 0
OW 0 41 1 5 7 13 0 0
VODI 0 30 6 15 10 12 0 0
ODI 0 1 3 32 7 3 0 0
CDI 0 0 0 16 62 15 0 0
VCDI 0 0 0 2 23 16 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 1 1309 38 202 132 9 0 0
OW 0 5 1 47 151 47 0 0
VODI 0 1 2 19 96 144 0 0
ODI 0 0 0 7 32 167 6 0
CDI 0 0 0 0 33 199 50 0
VCDI 0 0 0 0 39 482 2070 514
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1 1302 36 174 64 11 0 0
OW 0 10 2 56 133 18 0 0
VODI 0 3 2 23 144 145 0 0
ODI 0 0 1 16 39 134 19 0
CDI 0 0 0 6 40 160 58 0
VCDI 0 0 0 0 63 580 2049 514

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3 1096 28 149 22 0 0 0
OW 0 234 12 206 141 5 0 0
VODI 0 73 24 248 456 117 0 0
ODI 0 9 3 14 316 1427 2 0
CDI 0 2 1 7 210 1169 128 0
VCDI 0 0 0 0 79 1522 884 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3 939 24 167 105 6 0 0
OW 0 378 31 283 307 85 0 0
VODI 0 61 7 126 293 1175 0 0
ODI 0 24 2 22 120 717 10 0
CDI 0 12 4 18 138 396 49 0
VCDI 0 0 0 8 261 1861 955 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 16420 3168 25 167 4 0 0 0
OW 0 87 11 188 25 0 0 0
VODI 0 9 2 42 27 0 0 0
ODI 0 2 0 9 0 0 0 0
CDI 0 0 0 11 1 0 0 0
VCDI 0 0 0 2 9 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 16419 3199 27 241 29 0 0 0
OW 1 57 8 73 24 0 0 0
VODI 0 10 3 69 2 0 0 0
ODI 0 0 0 10 1 0 0 0
CDI 0 0 0 10 0 0 0 0
VCDI 0 0 0 16 10 0 0 0


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