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: 2020-05-28

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-06-01

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 94 9 84 36 1 0 0
OW 0 2 2 40 31 13 0 0
VODI 0 0 0 38 51 21 2 0
ODI 0 0 0 7 104 58 7 0
CDI 0 0 0 12 146 553 114 0
VCDI 0 0 0 0 0 1054 7821 26602
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 94 9 97 54 13 0 0
OW 0 2 2 52 46 20 3 0
VODI 0 0 0 17 82 68 15 0
ODI 0 0 0 3 56 101 76 0
CDI 0 0 0 12 130 485 541 0
VCDI 0 0 0 0 0 1013 7309 26602

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 3 0 0 0 0
OW 0 0 0 11 0 0 0 0
VODI 0 0 0 11 0 0 0 0
ODI 0 6 1 10 2 12 3 0
CDI 0 14 3 2 84 147 34 0
VCDI 0 0 0 3 2 82 637 2066
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 5 0 0 0 0
OW 0 0 0 14 0 0 0 0
VODI 0 0 0 6 0 0 1 0
ODI 0 4 1 10 2 9 8 0
CDI 0 16 1 1 84 158 102 2
VCDI 0 0 2 4 2 74 563 2064

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 8 9 0 0
VODI 0 0 0 12 39 8 0 0
ODI 0 0 0 2 129 39 0 0
CDI 0 0 0 0 260 640 45 0
VCDI 0 0 0 0 49 263 4463 4016
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 3 0 0
OW 0 0 0 0 6 8 0 0
VODI 0 0 0 6 42 31 0 0
ODI 0 0 0 6 123 13 0 0
CDI 0 0 0 2 251 707 263 0
VCDI 0 0 0 0 63 197 4245 4016

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 646 16 95 14 0 0 0
OW 0 135 10 44 3 0 0 0
VODI 0 10 10 190 46 0 0 0
ODI 0 0 0 9 165 13 0 0
CDI 0 0 0 0 65 270 113 0
VCDI 0 0 0 0 0 92 2620 1088
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 642 16 122 16 0 0 0
OW 0 90 3 23 17 0 0 0
VODI 0 58 16 90 45 4 0 0
ODI 0 1 1 103 125 44 0 0
CDI 0 0 0 0 90 292 656 0
VCDI 0 0 0 0 0 35 2077 1088

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 17 1 32 19 7 0 0
OW 0 69 4 55 33 5 8 0
VODI 0 49 4 177 108 3 9 0
ODI 0 7 0 57 283 27 2 0
CDI 0 2 1 32 391 970 192 0
VCDI 0 0 0 2 50 360 3308 962
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 16 0 67 47 7 0 0
OW 0 21 2 30 46 9 6 0
VODI 0 47 2 47 93 20 11 0
ODI 0 34 4 80 117 48 51 0
CDI 0 23 1 112 459 803 320 0
VCDI 0 3 1 19 122 485 3131 962

Laptev Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 161 3 4 0 0 0 0
OW 0 63 11 47 7 0 0 0
VODI 0 1 1 170 85 7 0 0
ODI 0 0 0 37 324 107 12 0
CDI 0 0 0 40 441 1363 345 0
VCDI 0 0 0 0 9 208 1699 181
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 153 4 9 0 0 0 0
OW 0 48 5 32 11 3 0 0
VODI 0 23 3 99 36 20 2 0
ODI 0 1 3 70 157 93 16 0
CDI 0 0 0 88 610 1388 832 2
VCDI 0 0 0 0 52 181 1206 179

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 1633 42 211 24 1 0 0
OW 0 58 18 168 48 0 0 0
VODI 0 4 4 162 250 16 6 0
ODI 0 0 0 3 537 159 20 0
CDI 0 0 0 0 80 1223 328 0
VCDI 0 0 0 0 0 176 1160 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1629 44 320 94 1 0 0
OW 0 54 14 138 164 15 6 0
VODI 0 12 6 76 437 351 40 0
ODI 0 0 0 10 152 553 359 0
CDI 0 0 0 0 92 566 623 0
VCDI 0 0 0 0 0 89 486 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 5561 3903 67 358 58 0 0 0
OW 0 0 0 145 73 0 0 0
VODI 0 0 0 38 215 18 0 0
ODI 0 0 0 0 301 132 0 0
CDI 0 0 0 0 9 453 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 5561 3903 67 439 100 0 0 0
OW 0 0 0 97 171 16 0 0
VODI 0 0 0 5 310 167 0 0
ODI 0 0 0 0 71 291 0 0
CDI 0 0 0 0 4 129 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 5008 3006 37 354 158 0 0 0
OW 0 31 5 90 96 0 1 0
VODI 0 22 7 87 156 4 3 0
ODI 0 0 0 32 298 78 20 0
CDI 0 0 0 0 236 953 313 0
VCDI 0 0 0 0 0 13 687 1
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5008 3016 39 390 228 0 1 0
OW 0 23 5 71 179 15 4 0
VODI 0 15 1 52 139 178 25 0
ODI 0 5 4 39 147 256 82 0
CDI 0 0 0 11 251 599 795 0
VCDI 0 0 0 0 0 0 117 1

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10107 2360 23 170 105 0 0 0
OW 0 0 2 26 35 0 0 0
VODI 0 0 0 11 64 0 0 0
ODI 0 0 0 0 85 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 10107 2360 25 193 159 0 0 0
OW 0 0 0 14 122 0 0 0
VODI 0 0 0 0 8 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 0 1265 34 307 53 0 0 0
OW 0 37 5 182 109 6 1 0
VODI 0 10 0 86 195 14 10 0
ODI 0 0 0 0 408 163 11 0
CDI 0 0 0 0 37 1357 466 0
VCDI 0 0 0 0 0 61 986 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1269 37 432 264 18 5 0
OW 0 29 2 103 189 94 6 0
VODI 0 14 0 38 242 392 14 0
ODI 0 0 0 2 83 438 59 0
CDI 0 0 0 0 23 638 971 0
VCDI 0 0 0 0 1 21 419 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 0 811 75 335 51 4 0 0
OW 0 2 2 176 118 4 0 0
VODI 0 0 1 72 420 28 0 0
ODI 0 0 0 2 480 226 4 0
CDI 0 0 0 0 71 801 199 9
VCDI 0 0 0 0 1 135 3665 895
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 812 77 447 248 16 1 0
OW 0 1 1 89 306 83 7 0
VODI 0 0 0 41 372 255 32 8
ODI 0 0 0 8 122 336 125 5
CDI 0 0 0 0 93 489 2048 500
VCDI 0 0 0 0 0 19 1655 391

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14645 3361 80 507 263 11 0 0
OW 0 11 1 95 112 13 0 0
VODI 0 1 1 70 177 24 0 0
ODI 0 0 0 0 180 69 1 0
CDI 0 0 0 0 27 296 94 0
VCDI 0 0 0 0 0 2 168 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14645 3372 81 610 403 35 0 0
OW 0 1 1 51 176 37 0 0
VODI 0 0 0 11 151 141 31 0
ODI 0 0 0 0 27 175 57 0
CDI 0 0 0 0 2 27 162 0
VCDI 0 0 0 0 0 0 13 0


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