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: 2020-01-02

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-01-06

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 0 1 34 4 0 0 0
OW 0 1 3 22 20 0 0 0
VODI 0 0 0 10 36 0 0 0
ODI 0 0 0 1 27 14 0 0
CDI 0 0 0 0 18 55 5 0
VCDI 0 0 0 0 20 388 7634 28609
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 1 34 5 0 0 0
OW 0 1 3 17 12 0 0 0
VODI 0 0 0 13 30 0 0 0
ODI 0 0 0 3 21 5 0 0
CDI 0 0 0 0 17 14 0 0
VCDI 0 0 0 0 40 438 7639 28609

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 86 627 2420
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 86 627 2419

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 0 326 9656
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 0 326 9656

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 0 30 2 0
VCDI 0 0 0 0 0 431 2659 2532
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 15 0 0
VCDI 0 0 0 0 0 446 2661 2532

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 12
VCDI 0 0 0 0 0 9 700 6525
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 9 700 6532

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 54 16 0
VCDI 0 0 0 0 0 241 2829 2186
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 54 13 0
VCDI 0 0 0 0 0 241 2832 2186

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 30 0 2 0 0 0 0
OW 0 29 0 42 0 0 0 0
VODI 0 19 0 106 7 0 0 0
ODI 0 24 0 39 40 17 0 0
CDI 0 51 6 45 88 89 18 0
VCDI 0 81 7 40 181 1102 4206 62
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 22 0 7 0 0 0 0
OW 0 29 0 27 1 0 0 0
VODI 0 20 0 52 5 6 0 0
ODI 0 21 0 70 33 32 1 0
CDI 0 25 0 41 50 96 30 0
VCDI 0 117 13 77 227 1074 4193 62

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4271 3475 52 263 141 26 0 0
OW 0 39 7 73 88 41 0 0
VODI 0 29 0 39 109 63 0 0
ODI 0 14 1 13 78 75 5 0
CDI 0 40 2 11 69 120 17 0
VCDI 0 1 1 5 39 738 1386 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4271 3382 41 231 158 27 0 0
OW 0 98 12 43 56 35 0 0
VODI 0 45 6 80 66 48 0 0
ODI 0 17 0 25 74 64 1 0
CDI 0 19 1 10 93 94 11 0
VCDI 0 37 3 15 77 795 1396 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 5396 3284 23 106 11 0 0 0
OW 0 172 7 54 7 0 0 0
VODI 0 117 8 63 23 2 0 0
ODI 0 41 7 74 34 4 0 0
CDI 0 28 1 70 58 21 1 0
VCDI 0 0 0 32 237 549 1169 97
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5396 3148 21 104 13 0 0 0
OW 0 162 4 35 8 0 0 0
VODI 0 140 7 39 5 4 0 0
ODI 0 77 5 41 29 1 0 0
CDI 0 39 3 62 40 9 0 0
VCDI 0 76 6 118 275 562 1170 97

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9520 2382 18 80 116 136 11 0
OW 0 84 16 64 20 10 7 0
VODI 0 24 6 41 26 10 15 0
ODI 0 0 2 27 28 19 20 0
CDI 0 0 0 10 45 47 51 0
VCDI 0 0 0 0 34 56 63 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9520 2358 25 125 137 152 33 0
OW 0 65 3 16 15 9 8 0
VODI 0 52 7 22 21 18 24 0
ODI 0 14 4 22 15 18 40 0
CDI 0 1 3 32 19 23 40 0
VCDI 0 0 0 5 62 58 22 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 0 560 15 37 3 0 0 0
OW 0 22 6 48 8 0 0 0
VODI 0 7 1 49 35 0 0 0
ODI 0 0 0 18 65 0 0 0
CDI 0 0 0 1 92 13 0 0
VCDI 0 0 0 1 143 832 3473 374
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 520 11 13 0 0 0 0
OW 0 46 4 35 0 0 0 0
VODI 0 14 7 51 19 0 0 0
ODI 0 8 0 34 39 0 0 0
CDI 0 1 0 14 63 6 0 0
VCDI 0 0 0 7 225 839 3473 374

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 9 23 1 13
VCDI 0 0 0 0 71 839 1441 6190
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 6 33 1 10
VCDI 0 0 0 0 74 829 1441 6193

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 15156 2819 33 60 1 0 0 0
OW 0 78 5 54 5 0 0 0
VODI 0 61 10 60 26 2 0 0
ODI 0 26 4 128 102 41 0 0
CDI 0 2 0 70 269 141 0 0
VCDI 0 0 0 0 143 842 71 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 15156 2728 33 64 0 0 0 0
OW 0 90 9 53 9 0 0 0
VODI 0 74 3 49 28 23 0 0
ODI 0 40 3 34 59 28 0 0
CDI 0 54 4 59 91 85 0 0
VCDI 0 0 0 113 359 890 71 0


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