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: 2018-03-08

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-03-12

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 0 579 19 76 5 0 0 0
OW 0 23 8 61 26 0 0 0
VODI 0 2 2 59 76 0 0 0
ODI 0 0 0 12 86 10 0 0
CDI 0 0 0 0 80 86 0 0
VCDI 0 0 0 0 50 491 6339 28812
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 566 17 61 13 0 0 0
OW 0 30 8 50 18 0 0 0
VODI 0 8 4 64 56 4 0 0
ODI 0 0 0 31 74 12 0 0
CDI 0 0 0 2 79 57 0 0
VCDI 0 0 0 0 83 514 6339 28812

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 1
VCDI 0 0 0 0 0 47 1068 2017
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 7
VCDI 0 0 0 0 0 47 1068 2011

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 16 14 14
VCDI 0 0 0 0 0 350 2496 7092
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 16 17
VCDI 0 0 0 0 0 347 2494 7089

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 0 0
CDI 0 0 0 0 9 2 38 0
VCDI 0 0 0 0 22 183 1818 3582
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 7 1 3 0
VCDI 0 0 0 0 24 184 1853 3582

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 0 0 7246
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 0 7246

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 0 15
VCDI 0 0 0 0 0 0 100 5211
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 17
VCDI 0 0 0 0 0 0 100 5209

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 20 5 32 41 8 0 0
OW 0 0 1 6 9 12 0 0
VODI 0 0 0 0 7 13 0 0
ODI 0 0 0 0 4 12 0 0
CDI 0 0 0 0 3 26 0 3
VCDI 0 0 0 0 0 54 3061 3014
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 20 5 31 39 14 0 0
OW 0 0 1 5 7 7 0 0
VODI 0 0 0 2 6 9 0 0
ODI 0 0 0 0 5 9 0 0
CDI 0 0 0 0 5 11 0 1
VCDI 0 0 0 0 2 75 3061 3016

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3877 3417 42 244 64 12 0 0
OW 5 47 11 161 108 14 0 0
VODI 2 8 0 47 233 30 1 0
ODI 0 1 0 0 170 67 15 0
CDI 0 0 0 0 112 231 65 0
VCDI 0 0 0 0 27 888 1432 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3877 3331 29 194 83 23 0 0
OW 5 101 14 109 58 24 4 0
VODI 2 32 6 111 161 46 9 0
ODI 0 9 4 30 191 54 18 0
CDI 0 0 0 8 159 181 48 0
VCDI 0 0 0 0 62 914 1434 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 5518 3422 19 64 5 0 0 0
OW 0 112 15 93 19 0 0 0
VODI 0 28 6 132 86 0 0 0
ODI 0 0 0 7 154 8 0 0
CDI 0 0 0 0 113 113 2 0
VCDI 0 0 0 0 5 731 1044 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5518 3381 22 82 4 0 0 0
OW 0 141 9 83 36 0 0 0
VODI 0 40 9 101 107 9 0 0
ODI 0 0 0 28 125 36 0 0
CDI 0 0 0 2 83 105 8 0
VCDI 0 0 0 0 27 702 1038 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 8539 3203 23 94 76 2 0 0
OW 0 144 31 68 45 5 0 0
VODI 0 10 9 115 102 21 0 0
ODI 0 0 0 11 122 36 0 0
CDI 0 0 0 0 64 199 0 0
VCDI 0 0 0 0 0 57 12 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8539 3277 38 129 114 2 0 0
OW 0 64 21 87 66 20 0 0
VODI 0 15 3 55 118 56 0 0
ODI 0 1 1 13 52 78 0 0
CDI 0 0 0 4 53 111 2 0
VCDI 0 0 0 0 6 53 10 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 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 5 3 0 0
CDI 0 0 0 0 5 14 0 0
VCDI 0 0 0 0 5 138 1138 4495
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 2 0 0 0
ODI 0 0 0 0 2 4 0 0
CDI 0 0 0 0 2 6 0 0
VCDI 0 0 0 0 9 145 1138 4495

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 0 8 29
VCDI 0 0 0 0 0 4 1219 7327
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 25
VCDI 0 0 0 0 0 4 1227 7331

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9319 4950 45 277 218 47 0 0
OW 0 290 28 286 158 51 0 0
VODI 0 20 7 257 415 97 5 0
ODI 0 0 0 0 274 303 33 0
CDI 0 0 0 0 49 780 234 0
VCDI 0 0 0 0 0 850 1216 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9319 5195 65 463 376 120 0 0
OW 0 64 14 260 216 104 0 0
VODI 0 1 1 94 280 169 32 0
ODI 0 0 0 3 168 192 49 0
CDI 0 0 0 0 64 643 213 0
VCDI 0 0 0 0 10 900 1194 0


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