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: 2018-01-25

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-01-29

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 0 517 14 20 0 0 0 0
OW 0 56 12 53 4 0 0 0
VODI 0 36 1 57 50 0 0 0
ODI 0 3 1 22 80 2 0 0
CDI 0 0 0 11 76 66 52 0
VCDI 0 0 0 3 32 377 5471 29886
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 503 14 17 0 0 0 0
OW 0 53 9 44 2 0 0 0
VODI 0 28 4 53 36 1 0 0
ODI 0 13 0 19 55 7 0 0
CDI 0 12 0 10 66 25 5 0
VCDI 0 3 1 23 83 412 5518 29886

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 1
CDI 0 0 0 0 0 0 0 19
VCDI 0 0 0 0 0 81 1100 1932
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 8
CDI 0 0 0 0 0 0 0 14
VCDI 0 0 0 0 0 81 1100 1930

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 0 0 5
VCDI 0 0 0 0 0 0 118 9859
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 0 118 9864

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 0 0 0 0
ODI 0 0 0 0 0 0 1 0
CDI 0 0 0 0 0 7 24 0
VCDI 0 0 0 0 0 56 1989 3577
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 1 0
CDI 0 0 0 0 0 8 55 0
VCDI 0 0 0 0 0 55 1958 3577

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 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 14 1055 6177
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 1 1 0
VCDI 0 0 0 0 0 13 1054 6177

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 0 39 17
VCDI 0 0 0 0 0 3 465 4802
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 26 11
VCDI 0 0 0 0 0 3 478 4808

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 372 3 14 3 0 0 0
OW 0 62 10 30 3 0 0 0
VODI 0 82 10 65 10 0 0 0
ODI 0 48 5 58 129 41 5 0
CDI 0 20 2 61 113 256 69 17
VCDI 0 5 1 11 89 365 3329 1043
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 247 1 8 5 0 0 0
OW 0 55 1 13 2 0 0 0
VODI 0 80 8 20 7 2 0 0
ODI 0 80 5 30 13 10 6 0
CDI 0 55 5 36 45 81 50 12
VCDI 0 72 11 132 275 569 3347 1048

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4574 4010 70 283 59 0 0 0
OW 0 27 14 177 153 6 0 0
VODI 0 11 3 74 230 26 0 0
ODI 0 4 3 13 167 101 0 0
CDI 0 0 0 16 79 367 48 0
VCDI 0 0 0 0 57 283 476 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4574 3944 63 275 73 0 0 0
OW 0 56 13 138 139 4 0 0
VODI 0 26 9 93 175 42 0 0
ODI 0 11 1 26 131 68 0 0
CDI 0 13 2 11 110 171 3 0
VCDI 0 2 2 20 117 498 521 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 6010 3181 11 30 4 0 0 0
OW 0 70 12 89 16 0 0 0
VODI 0 4 1 97 81 5 0 0
ODI 0 0 0 18 99 38 0 0
CDI 0 0 0 0 89 78 1 0
VCDI 0 0 0 0 18 360 1321 63
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6010 3018 10 22 2 0 0 0
OW 0 152 3 51 25 0 0 0
VODI 0 75 9 81 51 8 0 0
ODI 0 9 2 53 67 25 0 0
CDI 0 1 0 27 89 65 2 0
VCDI 0 0 0 0 73 383 1320 63

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8711 3153 34 87 102 44 3 0
OW 0 72 13 58 31 20 2 0
VODI 0 17 13 54 67 31 2 0
ODI 0 0 0 10 73 32 11 0
CDI 0 0 0 0 25 127 152 0
VCDI 0 0 0 0 0 7 37 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8711 3177 40 123 165 85 2 0
OW 0 61 12 32 18 34 12 0
VODI 0 4 8 44 46 15 24 0
ODI 0 0 0 10 42 54 84 0
CDI 0 0 0 0 25 67 73 0
VCDI 0 0 0 0 2 6 12 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 1 2 28 4 0 0 0
OW 0 0 0 19 15 0 0 0
VODI 0 0 0 12 19 8 0 0
ODI 0 0 0 4 28 24 0 0
CDI 0 0 0 0 51 42 5 0
VCDI 0 0 0 0 27 275 2367 2872
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1 2 20 9 0 0 0
OW 0 0 0 17 8 2 0 0
VODI 0 0 0 15 10 8 0 0
ODI 0 0 0 10 15 8 0 0
CDI 0 0 0 1 26 13 1 0
VCDI 0 0 0 0 76 318 2371 2872

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 76 0 0
VCDI 0 0 0 0 0 204 2686 5621
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 61 0 0
VCDI 0 0 0 0 0 219 2686 5621

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11322 4389 66 296 69 0 0 0
OW 0 88 20 206 136 0 0 0
VODI 0 10 6 122 296 9 0 0
ODI 0 2 0 26 300 99 0 0
CDI 0 0 0 17 123 510 2 0
VCDI 0 0 0 3 116 843 1133 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11322 4365 77 355 201 5 0 0
OW 0 92 7 142 127 22 0 0
VODI 0 21 4 105 231 80 0 0
ODI 0 8 2 31 226 183 0 0
CDI 0 3 2 14 100 408 0 0
VCDI 0 0 0 23 155 763 1135 0


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