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: 2020-01-16

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-01-20

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 46 6 6 0 0 0 0
OW 0 8 4 33 0 0 0 0
VODI 0 11 3 31 14 0 0 0
ODI 0 0 0 16 30 0 0 0
CDI 0 0 0 15 38 17 0 0
VCDI 0 0 0 0 48 921 8345 27310
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 34 3 4 0 0 0 0
OW 0 11 5 18 0 0 0 0
VODI 0 10 3 28 8 0 0 0
ODI 0 7 1 15 22 0 0 0
CDI 0 3 1 13 22 6 0 0
VCDI 0 0 0 23 78 932 8345 27310

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 4
VCDI 0 0 0 0 0 42 717 2370
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 9
VCDI 0 0 0 0 0 42 717 2365

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 6 9
VCDI 0 0 0 0 0 2 539 9426
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 1 2
VCDI 0 0 0 0 0 2 544 9433

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 5 17 19 0
CDI 0 0 0 0 1 42 23 2
VCDI 0 0 0 0 0 220 1541 3784
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 7 0
ODI 0 0 0 0 5 22 22 0
CDI 0 0 0 0 1 30 13 0
VCDI 0 0 0 0 0 227 1541 3786

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 5
VCDI 0 0 0 0 0 0 0 7241
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 2
VCDI 0 0 0 0 0 0 0 7244

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 31 24 3
VCDI 0 0 0 0 0 116 1577 3575
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 33 23 1
VCDI 0 0 0 0 0 114 1578 3577

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 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 28 12 0 0
CDI 0 0 0 0 19 77 1 0
VCDI 0 0 0 0 3 173 3497 2521
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 10 0 0
CDI 0 0 0 0 1 26 14 0
VCDI 0 0 0 0 49 226 3484 2521

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3722 3350 60 281 82 22 0 0
OW 0 59 17 167 117 30 0 0
VODI 0 18 1 102 205 55 1 0
ODI 0 2 0 18 150 114 8 0
CDI 0 0 0 5 82 239 26 0
VCDI 0 0 0 1 59 617 1721 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3722 3288 54 271 156 41 0 0
OW 0 113 16 109 103 33 2 0
VODI 0 27 8 117 125 76 8 0
ODI 0 1 0 52 108 98 17 0
CDI 0 0 0 18 108 253 37 0
VCDI 0 0 0 7 95 576 1692 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 5454 3549 15 33 1 0 0 0
OW 0 115 19 74 10 0 0 0
VODI 0 37 9 106 65 1 0 0
ODI 0 12 6 64 72 8 0 0
CDI 0 0 0 40 130 75 6 0
VCDI 0 0 0 5 100 648 1009 33
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5454 3326 7 24 5 0 0 0
OW 0 186 9 26 7 0 0 0
VODI 0 135 15 66 17 1 0 0
ODI 0 45 10 84 43 2 0 0
CDI 0 20 6 65 86 12 4 0
VCDI 0 1 2 57 220 717 1011 33

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9168 2562 27 105 96 64 21 0
OW 0 106 11 68 24 11 27 0
VODI 0 23 6 68 58 13 38 0
ODI 0 0 1 22 67 22 33 0
CDI 0 0 0 3 41 88 93 0
VCDI 0 0 0 0 3 18 101 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9168 2597 33 178 164 100 125 0
OW 0 56 4 41 50 16 30 0
VODI 0 28 4 17 14 33 40 0
ODI 0 10 2 16 12 10 53 0
CDI 0 0 2 14 48 31 49 0
VCDI 0 0 0 0 1 26 16 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 0 212 8 68 27 0 0 0
OW 0 13 8 33 23 1 0 0
VODI 0 4 2 31 45 7 0 0
ODI 0 0 0 13 45 24 0 0
CDI 0 0 0 3 43 60 2 0
VCDI 0 0 0 2 27 584 3043 1475
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 202 9 53 28 0 0 0
OW 0 16 4 38 23 0 0 0
VODI 0 8 4 25 33 12 0 0
ODI 0 3 1 14 33 22 0 0
CDI 0 0 0 15 26 34 3 0
VCDI 0 0 0 5 67 608 3042 1475

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 21 2 0 0
CDI 0 0 0 0 59 96 1 6
VCDI 0 0 0 0 46 1224 5026 2106
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 36 6 0 0
CDI 0 0 0 0 67 104 5 5
VCDI 0 0 0 0 23 1212 5022 2107

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12557 3947 40 131 12 0 0 0
OW 0 54 16 184 25 0 0 0
VODI 0 0 1 188 100 0 0 0
ODI 0 0 0 34 406 2 0 0
CDI 0 0 0 4 452 128 0 0
VCDI 0 0 0 0 256 1210 462 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12557 3971 45 184 17 0 0 0
OW 0 30 12 160 49 0 0 0
VODI 0 0 0 149 114 0 0 0
ODI 0 0 0 37 226 4 0 0
CDI 0 0 0 10 420 74 0 0
VCDI 0 0 0 1 425 1262 462 0


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