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: 2019-04-18

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-04-22

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 9 42 35 0 0
OW 0 0 0 0 6 20 1 0
VODI 0 0 0 0 4 31 9 0
ODI 0 0 0 0 1 34 17 0
CDI 0 0 0 0 4 67 91 0
VCDI 0 0 0 0 21 492 5893 30125
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 9 49 56 2 0
OW 0 0 0 0 4 29 13 0
VODI 0 0 0 0 0 37 17 0
ODI 0 0 0 0 0 43 33 0
CDI 0 0 0 0 0 33 70 0
VCDI 0 0 0 0 25 481 5876 30125

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 15 15 5 0
VCDI 0 0 0 0 22 166 672 2238
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 7 5 0
VCDI 0 0 0 0 29 174 672 2238

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 8 23 0 0 0
ODI 0 0 0 13 15 3 0 0
CDI 0 0 0 10 18 36 19 1
VCDI 0 0 0 2 57 350 2116 7311
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 3 0 0 0
ODI 0 0 0 4 19 0 2 0
CDI 0 0 0 15 16 32 47 11
VCDI 0 0 0 14 75 357 2086 7301

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 6 0 0 0
ODI 0 0 0 0 28 28 0 0
CDI 0 0 0 4 38 121 13 0
VCDI 0 0 0 0 73 261 1725 3357
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 12 0 0 0
VCDI 0 0 0 4 133 410 1738 3357

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 1 1 13 0
CDI 0 0 0 0 11 6 56 5
VCDI 0 0 0 0 54 301 2622 4176
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 4 42 0
VCDI 0 0 0 0 64 304 2649 4181

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 2 12 2 0
CDI 0 0 0 0 10 90 53 3
VCDI 0 0 0 0 0 371 2263 2520
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 13 24 16
CDI 0 0 0 0 2 84 66 43
VCDI 0 0 0 0 10 376 2228 2464

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 4 1 0 0 0
OW 0 2 2 44 14 0 0 0
VODI 0 0 0 82 106 0 0 0
ODI 0 0 0 2 113 14 0 0
CDI 0 0 0 0 42 109 0 7
VCDI 0 0 0 0 70 720 3346 1653
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 10 0 0 0 0
OW 0 0 0 42 10 0 0 0
VODI 0 2 2 35 47 0 0 0
ODI 0 0 0 39 84 16 0 0
CDI 0 0 0 6 76 98 7 5
VCDI 0 0 0 0 129 729 3339 1655

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4202 3407 60 269 57 0 0 0
OW 0 162 15 106 73 0 0 0
VODI 0 90 14 140 121 5 0 0
ODI 0 0 0 50 170 19 0 0
CDI 0 0 0 0 137 205 0 0
VCDI 0 0 0 0 22 1433 574 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4202 3524 65 320 100 0 0 0
OW 0 116 16 102 96 3 0 0
VODI 0 19 8 95 165 15 0 0
ODI 0 0 0 31 96 46 0 0
CDI 0 0 0 17 76 154 9 0
VCDI 0 0 0 0 47 1444 565 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 5435 2871 32 84 7 0 0 0
OW 0 59 21 173 38 0 0 0
VODI 0 0 1 147 191 3 0 0
ODI 0 0 0 7 253 111 6 0
CDI 0 0 0 3 69 619 100 0
VCDI 0 0 0 0 30 488 948 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5435 2919 48 270 51 0 0 0
OW 0 11 5 92 144 2 0 0
VODI 0 0 1 38 163 39 0 0
ODI 0 0 0 10 99 97 0 0
CDI 0 0 0 4 64 274 27 0
VCDI 0 0 0 0 67 809 1027 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 8618 3340 48 191 179 50 10 0
OW 0 70 19 48 24 8 0 0
VODI 0 9 4 73 62 25 2 0
ODI 0 0 0 0 112 69 0 0
CDI 0 0 0 0 2 23 2 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 8618 3405 69 238 175 51 10 0
OW 0 14 2 72 93 26 0 0
VODI 0 0 0 2 96 78 3 0
ODI 0 0 0 0 15 20 1 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 62 7 14 5 0 0 0
OW 0 14 8 55 7 1 0 0
VODI 0 0 0 68 51 6 0 0
ODI 0 0 0 1 90 12 0 0
CDI 0 0 0 0 50 83 3 0
VCDI 0 0 0 0 7 601 3471 1187
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 41 3 7 8 0 0 0
OW 0 18 2 7 6 2 0 0
VODI 0 17 9 49 5 10 0 0
ODI 0 0 1 60 28 10 0 0
CDI 0 0 0 15 95 12 16 0
VCDI 0 0 0 0 68 669 3458 1187

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 1 0 0 0 0
ODI 0 0 0 20 81 20 5 0
CDI 0 0 0 0 76 101 88 0
VCDI 0 0 0 0 60 1180 5998 957
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 4 23 2 0 0
CDI 0 0 0 14 52 62 36 0
VCDI 0 0 0 3 142 1237 6055 957

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11536 4774 74 452 114 0 0 0
OW 0 10 7 142 226 2 0 0
VODI 0 0 0 18 368 106 4 0
ODI 0 0 0 4 232 153 1 0
CDI 0 0 0 0 108 420 54 0
VCDI 0 0 0 0 22 597 785 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11536 4784 81 571 286 7 0 0
OW 0 0 0 21 291 61 3 0
VODI 0 0 0 13 228 157 2 0
ODI 0 0 0 9 105 154 8 0
CDI 0 0 0 2 95 266 166 0
VCDI 0 0 0 0 65 633 665 0


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