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: 2019-12-26

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-12-30

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 94 1 3 0 0 0 0
OW 0 24 5 6 0 0 0 0
VODI 0 13 3 18 2 0 0 0
ODI 0 6 1 22 9 0 0 0
CDI 0 1 2 12 60 3 1 0
VCDI 0 0 0 5 89 537 6536 29449
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 79 1 1 0 0 0 0
OW 0 28 3 8 0 0 0 0
VODI 0 13 4 17 3 0 0 0
ODI 0 9 1 10 10 0 0 0
CDI 0 7 0 11 18 0 0 0
VCDI 0 2 3 19 129 540 6537 29449

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 0 120 837 2176
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 0 120 837 2175

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 0
VCDI 0 0 0 0 0 0 0 9982
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 9982

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 12 109 22 0
VCDI 0 0 0 0 87 828 2670 1926
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 9 0 0
VCDI 0 0 0 0 92 928 2692 1926

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 3 0 53
VCDI 0 0 0 0 0 36 602 6552
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 0 60
VCDI 0 0 0 0 0 36 602 6545

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 37
VCDI 0 0 0 0 0 0 0 5289
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 37
VCDI 0 0 0 0 0 0 0 5289

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 62 0 0 0 0 0 0
OW 0 15 1 1 1 0 0 0
VODI 0 24 1 15 6 0 0 0
ODI 0 15 2 17 22 18 0 0
CDI 0 12 3 29 52 57 18 0
VCDI 0 2 1 14 137 551 4135 1120
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 41 0 0 0 0 0 0
OW 0 25 0 0 0 0 0 0
VODI 0 21 1 0 1 0 0 0
ODI 0 16 0 8 6 15 0 0
CDI 0 13 3 17 23 49 20 0
VCDI 0 14 4 51 188 562 4133 1120

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4934 3460 44 109 49 0 0 0
OW 1 111 10 86 18 4 0 0
VODI 0 46 6 115 52 17 0 0
ODI 0 14 1 54 67 25 0 0
CDI 0 20 1 22 78 65 0 0
VCDI 0 21 0 16 142 795 948 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4934 3264 26 82 34 1 0 0
OW 0 206 7 53 25 3 0 0
VODI 1 135 20 86 26 13 0 0
ODI 0 19 7 94 44 19 0 0
CDI 0 14 1 54 56 52 0 0
VCDI 0 34 1 33 221 818 948 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 4941 3495 23 103 13 0 0 0
OW 0 100 12 80 10 0 0 0
VODI 0 31 16 144 43 2 0 0
ODI 0 0 1 75 93 3 0 0
CDI 0 0 0 13 150 111 0 0
VCDI 0 0 0 0 82 449 1565 141
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4941 3391 23 121 21 0 0 0
OW 0 151 10 56 9 1 0 0
VODI 0 73 13 74 30 3 0 0
ODI 0 11 6 84 40 10 0 0
CDI 0 0 0 64 141 67 0 2
VCDI 0 0 0 16 150 484 1565 139

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9292 2651 25 116 116 120 52 0
OW 0 50 10 30 20 19 43 0
VODI 0 4 3 60 35 8 25 0
ODI 0 0 0 5 55 18 17 0
CDI 0 0 0 0 35 111 11 0
VCDI 0 0 0 0 0 55 2 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9292 2647 24 131 138 143 117 0
OW 0 51 10 32 23 26 23 0
VODI 0 7 4 37 32 24 6 0
ODI 0 0 0 10 30 24 2 0
CDI 0 0 0 1 38 88 1 0
VCDI 0 0 0 0 0 26 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 7 736 22 69 8 0 0 0
OW 0 14 2 72 42 0 0 0
VODI 0 3 0 35 80 3 0 0
ODI 0 0 0 6 76 9 0 0
CDI 0 0 0 0 87 46 0 0
VCDI 0 0 0 0 57 836 3444 149
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7 703 11 25 6 0 0 0
OW 0 39 11 54 18 0 0 0
VODI 0 10 2 69 33 2 0 0
ODI 0 1 0 29 75 7 0 0
CDI 0 0 0 5 99 17 0 0
VCDI 0 0 0 0 119 868 3444 149

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 10 0 0
CDI 0 0 0 25 314 253 93 0
VCDI 0 0 0 18 68 1424 5213 1139
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 27 0 0
CDI 0 0 0 8 56 150 34 0
VCDI 0 0 0 35 351 1510 5272 1139

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14911 3337 37 54 0 0 0 0
OW 0 83 13 137 33 0 0 0
VODI 0 42 12 168 176 0 0 0
ODI 0 5 5 54 205 0 0 0
CDI 0 0 0 12 263 94 0 0
VCDI 0 0 0 0 101 467 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14911 3178 31 35 0 0 0 0
OW 0 82 11 58 14 0 0 0
VODI 0 95 7 116 65 0 0 0
ODI 0 93 10 139 144 0 0 0
CDI 0 19 8 74 285 55 0 0
VCDI 0 0 0 3 270 506 0 0


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