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: 2018-01-04

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-01-08

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 0 359 12 63 23 0 0 0
OW 0 5 8 25 35 1 0 0
VODI 0 0 0 23 44 12 0 0
ODI 0 0 0 7 36 29 0 0
CDI 0 0 0 0 46 46 5 0
VCDI 0 0 0 0 60 1248 8293 26522
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 352 14 52 24 0 0 0
OW 0 9 4 26 32 5 0 0
VODI 0 3 1 21 33 22 1 0
ODI 0 0 1 11 32 39 8 0
CDI 0 0 0 8 38 67 9 0
VCDI 0 0 0 0 85 1203 8280 26522

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 0 224 1397 1511
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 0 224 1397 1512

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 3 15 25
VCDI 0 0 0 0 0 112 2474 7353
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 2 0 0
VCDI 0 0 0 0 0 113 2489 7378

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 1 0 45 30 0 0 0
ODI 0 0 0 11 184 110 0 0
CDI 0 0 0 0 117 130 7 0
VCDI 0 0 0 0 123 827 3167 902
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 10 0 0
VODI 0 1 0 14 59 40 0 0
ODI 0 0 0 42 120 49 0 0
CDI 0 0 0 0 124 107 3 0
VCDI 0 0 0 0 151 861 3171 902

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 12 0 6
VCDI 0 0 0 0 0 53 919 6256
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 2 0 0
CDI 0 0 0 0 0 14 0 6
VCDI 0 0 0 0 0 49 919 6256

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 0
VCDI 0 0 0 0 0 0 99 5227
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 99 5227

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14 399 6 15 0 0 0 0
OW 0 72 12 60 7 0 0 0
VODI 0 57 3 206 72 3 0 0
ODI 0 34 1 14 198 29 0 0
CDI 0 15 3 35 99 225 5 4
VCDI 0 1 1 31 102 534 3286 788
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14 293 2 16 0 0 0 0
OW 0 103 8 26 0 0 0 0
VODI 0 66 8 122 13 0 0 0
ODI 0 38 2 98 73 10 0 0
CDI 0 39 1 30 164 125 5 2
VCDI 0 39 5 69 228 656 3286 790

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5881 3415 37 173 52 0 0 0
OW 0 85 15 72 53 0 0 0
VODI 0 36 11 88 104 8 0 0
ODI 0 8 4 24 106 58 0 0
CDI 0 2 2 11 59 108 2 0
VCDI 0 0 0 0 26 578 313 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5881 3368 39 164 74 3 0 0
OW 0 101 13 72 54 9 0 0
VODI 0 44 10 81 88 36 0 0
ODI 0 16 0 29 70 51 0 0
CDI 0 13 3 4 72 81 0 0
VCDI 0 4 4 18 42 572 315 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 5751 3136 8 68 2 0 0 0
OW 0 61 10 57 36 0 0 0
VODI 0 27 9 58 75 2 0 0
ODI 0 3 3 36 60 24 0 0
CDI 0 0 0 18 80 72 0 0
VCDI 0 0 0 0 77 579 1444 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5751 2998 3 37 1 0 0 0
OW 0 118 10 44 28 0 0 0
VODI 0 73 3 59 55 2 0 0
ODI 0 32 7 28 53 27 0 0
CDI 0 6 7 49 53 52 1 0
VCDI 0 0 0 20 140 596 1443 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 8867 3142 38 89 92 10 0 0
OW 0 116 17 51 7 10 0 0
VODI 0 21 9 68 61 13 0 0
ODI 0 0 0 6 76 23 6 0
CDI 0 0 0 0 49 98 64 0
VCDI 0 0 0 0 5 29 21 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8867 3053 36 96 104 28 0 0
OW 0 126 12 27 7 10 8 0
VODI 0 100 13 49 35 13 40 0
ODI 0 0 3 37 72 44 24 0
CDI 0 0 0 5 47 57 15 0
VCDI 0 0 0 0 25 31 4 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 0 265 12 27 3 0 0 0
OW 0 53 8 37 4 0 0 0
VODI 0 29 2 55 12 0 0 0
ODI 0 13 0 16 41 0 0 0
CDI 0 6 1 23 76 5 5 0
VCDI 0 0 0 25 183 540 2786 1576
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 170 7 22 0 0 0 0
OW 0 32 3 9 6 0 0 0
VODI 0 41 1 19 8 0 0 0
ODI 0 56 3 26 9 0 0 0
CDI 0 38 7 42 28 3 1 0
VCDI 0 29 2 65 268 542 2790 1576

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 30 0 0 0
CDI 0 0 0 0 19 7 3 30
VCDI 0 0 0 0 24 434 1933 6107
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 0 0 1
CDI 0 0 0 0 25 4 1 68
VCDI 0 0 0 0 37 437 1935 6068

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 13662 4009 31 115 29 0 0 0
OW 0 121 24 95 69 0 0 0
VODI 0 29 15 106 99 1 0 0
ODI 0 11 3 64 138 4 0 0
CDI 0 0 2 29 159 58 2 0
VCDI 0 0 0 4 241 655 434 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 13662 3980 36 149 51 0 0 0
OW 0 121 9 38 76 0 0 0
VODI 0 54 18 69 62 1 0 0
ODI 0 11 7 73 95 1 0 0
CDI 0 4 4 50 132 37 0 0
VCDI 0 0 1 34 319 679 436 0


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