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: 2017-04-13

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2017-04-17

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 0 0 0 0 0
OW 0 0 0 0 2 0 0 0
VODI 0 0 0 0 6 2 0 0
ODI 0 0 0 0 1 18 0 0
CDI 0 0 0 3 0 28 12 0
VCDI 0 0 0 11 57 279 6427 30056
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 3 0 0 0
VODI 0 0 0 0 6 8 0 0
ODI 0 0 0 0 0 26 2 0
CDI 0 0 0 0 1 17 33 0
VCDI 0 0 0 14 56 276 6404 30056

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 40 612 2481
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 40 612 2481

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 19 18 0
VCDI 0 0 0 0 0 204 4015 5726
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 21 31 0
VCDI 0 0 0 0 0 202 4002 5726

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 2 6 0 0
VODI 0 0 0 9 73 36 0 0
ODI 0 0 0 16 133 31 3 0
CDI 0 0 0 0 148 183 13 0
VCDI 0 0 0 0 25 330 3086 1560
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 17 29 0 0
VODI 0 0 0 0 65 27 4 0
ODI 0 0 0 15 104 37 8 0
CDI 0 0 0 10 119 135 56 0
VCDI 0 0 0 0 76 358 3034 1560

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 11 5 0 0
CDI 0 0 0 0 48 100 28 0
VCDI 0 0 0 0 2 653 4588 1811
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 1 0 0 0
ODI 0 0 0 0 6 13 1 0
CDI 0 0 0 0 41 83 79 0
VCDI 0 0 0 0 13 662 4536 1811

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 5 0 0
VCDI 0 0 0 0 0 84 1700 3537
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 3 1 0
VCDI 0 0 0 0 0 85 1699 3537

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 77 60 3 0 0 0 0
OW 0 0 10 28 0 0 0 0
VODI 0 0 0 36 3 0 0 0
ODI 0 0 0 17 59 4 0 0
CDI 0 0 0 15 99 33 46 0
VCDI 0 0 0 4 168 593 4532 544
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 76 38 1 0 0 0 0
OW 0 1 27 1 0 0 0 0
VODI 0 0 5 25 1 0 0 0
ODI 0 0 0 33 38 10 6 0
CDI 0 0 0 30 87 62 79 0
VCDI 0 0 0 13 203 558 4493 544

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 96 5605 1522 509 71 2 0 0
OW 0 11 4 239 62 11 0 0
VODI 0 3 2 281 166 26 0 0
ODI 0 0 0 49 164 52 0 0
CDI 0 0 0 8 131 193 3 0
VCDI 0 0 0 0 54 857 1210 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 96 5565 1466 478 87 12 0 0
OW 0 47 29 159 54 22 0 0
VODI 0 7 33 267 127 37 0 0
ODI 0 0 0 133 137 64 1 0
CDI 0 0 0 47 110 205 28 0
VCDI 0 0 0 2 133 801 1184 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 2207 4429 947 256 9 0 0 0
OW 0 4 46 121 24 0 0 0
VODI 0 0 20 166 49 5 0 0
ODI 0 0 0 53 128 17 0 0
CDI 0 0 0 8 169 162 2 1
VCDI 0 0 0 0 2 363 2153 355
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2207 4421 922 248 18 0 0 0
OW 0 10 49 130 30 6 0 0
VODI 0 2 35 109 53 14 0 0
ODI 0 0 7 81 71 22 2 0
CDI 0 0 0 36 163 87 25 2
VCDI 0 0 0 0 46 418 2128 354

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5847 4114 1223 762 29 0 0 0
OW 0 0 0 110 52 0 0 0
VODI 0 0 0 47 119 2 0 0
ODI 0 0 0 4 136 36 0 0
CDI 0 0 0 0 42 384 76 0
VCDI 0 0 0 0 0 3 2 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5847 4114 1223 801 50 0 0 0
OW 0 0 0 87 93 0 0 0
VODI 0 0 0 31 145 32 0 0
ODI 0 0 0 4 58 96 6 0
CDI 0 0 0 0 32 278 71 0
VCDI 0 0 0 0 0 19 1 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 0 0 4 0 0 0 0
OW 0 0 0 6 3 0 0 0
VODI 0 0 0 8 9 0 0 0
ODI 0 0 0 0 38 2 0 0
CDI 0 0 0 0 47 62 8 0
VCDI 0 0 0 0 32 885 3203 1496
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 1 1 0 0 0
OW 0 0 0 4 3 0 0 0
VODI 0 0 0 4 8 0 0 0
ODI 0 0 0 9 19 6 0 0
CDI 0 0 0 0 52 49 9 0
VCDI 0 0 0 0 46 894 3202 1496

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 0 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 55 14 0
VCDI 0 0 0 0 1 1261 6796 460
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 5 0
VCDI 0 0 0 0 1 1251 6805 460

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4328 7286 2407 887 88 0 0 0
OW 0 0 0 272 90 0 0 0
VODI 0 0 0 180 263 28 0 0
ODI 0 0 0 5 437 231 1 0
CDI 0 0 0 0 111 1133 80 0
VCDI 0 0 0 0 32 1391 959 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4328 7286 2405 1017 212 12 0 0
OW 0 0 2 256 190 58 0 0
VODI 0 0 0 71 388 172 35 0
ODI 0 0 0 0 138 301 23 0
CDI 0 0 0 0 32 540 126 0
VCDI 0 0 0 0 61 1700 856 0


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