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: 2020-03-12

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-03-16

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 0 0 0 0 0 0
OW 0 0 0 0 0 0 2 0
VODI 0 0 0 0 0 0 15 0
ODI 0 0 0 0 0 0 27 0
CDI 0 0 0 0 8 8 83 0
VCDI 0 0 0 0 21 307 6681 29750
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 13 0
VODI 0 0 0 0 0 0 23 0
ODI 0 0 0 0 0 0 35 0
CDI 0 0 0 0 2 2 63 0
VCDI 0 0 0 0 27 313 6674 29750

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 66 1086 1980
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 66 1086 1980

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 4 0 0
ODI 0 0 0 0 0 16 5 0
CDI 0 0 0 0 0 21 10 0
VCDI 0 0 0 0 0 30 928 8968
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 1 1
VCDI 0 0 0 0 0 69 942 8967

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 11 15 1 0
ODI 0 0 0 0 17 45 64 0
CDI 0 0 0 0 0 76 41 2
VCDI 0 0 0 0 0 27 2777 2578
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 8 27 0
ODI 0 0 0 0 16 11 31 0
CDI 0 0 0 0 12 73 54 5
VCDI 0 0 0 0 0 71 2771 2575

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 4 8
VCDI 0 0 0 0 0 15 919 6300
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 15 922 6306

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 48 25 0
VCDI 0 0 0 0 0 449 3509 1295
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 1 1 0
CDI 0 0 0 0 0 38 25 0
VCDI 0 0 0 0 0 458 3508 1295

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 1 3 26 1 0 0
CDI 0 8 1 14 68 64 0 9
VCDI 0 8 1 39 42 573 2984 2489
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 1 1 1 6 24 1 28
VCDI 0 15 2 55 130 614 2983 2470

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3041 3451 54 286 123 20 0 0
OW 0 65 11 150 154 38 5 0
VODI 0 25 5 93 238 69 9 0
ODI 0 13 1 29 137 102 8 0
CDI 0 6 1 9 127 179 24 0
VCDI 0 0 0 0 14 524 2320 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3040 3402 42 220 103 21 0 0
OW 1 99 21 112 77 26 7 0
VODI 0 34 6 151 151 40 9 0
ODI 0 12 2 49 195 61 14 0
CDI 0 12 0 30 159 123 30 0
VCDI 0 1 1 5 108 661 2306 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 4407 3442 31 175 48 22 0 0
OW 0 79 4 115 37 14 8 0
VODI 0 10 8 127 116 13 4 0
ODI 0 0 0 26 160 19 2 0
CDI 0 0 0 3 211 87 14 0
VCDI 0 0 0 0 109 614 1791 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4407 3419 32 182 61 26 3 0
OW 0 81 5 105 43 16 9 0
VODI 0 27 3 102 83 14 2 0
ODI 0 4 3 50 110 12 2 0
CDI 0 0 0 7 201 40 3 0
VCDI 0 0 0 0 183 661 1800 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 8436 3149 33 120 102 26 0 0
OW 0 135 12 59 18 10 2 0
VODI 0 33 11 63 78 8 0 0
ODI 0 9 5 33 74 26 0 0
CDI 0 0 1 38 77 125 23 0
VCDI 0 0 0 7 61 147 67 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8436 3079 31 143 123 29 2 0
OW 0 126 11 25 36 14 0 0
VODI 0 84 6 39 46 23 0 0
ODI 0 25 6 36 45 38 7 0
CDI 0 12 8 38 62 89 42 0
VCDI 0 0 0 39 98 149 41 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 7 0 0 0 0
OW 0 0 0 7 1 0 0 0
VODI 0 0 0 13 14 1 0 0
ODI 0 0 0 3 28 14 0 0
CDI 0 0 0 10 41 38 0 0
VCDI 0 0 0 10 141 614 3507 1354
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 6 5 0 0 0
VODI 0 0 0 7 12 0 0 0
ODI 0 0 0 10 9 9 0 0
CDI 0 0 0 7 27 22 0 0
VCDI 0 0 0 20 172 636 3507 1354

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 13 3 4
CDI 0 0 0 0 9 148 44 79
VCDI 0 0 0 0 35 607 4229 3416
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 18 0 4
CDI 0 0 0 0 0 129 34 60
VCDI 0 0 0 0 44 621 4242 3435

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10150 5099 60 199 51 0 0 0
OW 0 108 20 262 96 3 0 0
VODI 0 3 4 177 292 36 0 0
ODI 0 0 0 10 335 182 0 0
CDI 0 0 0 0 180 659 32 0
VCDI 0 0 0 0 232 1120 899 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10150 5090 66 290 94 5 0 0
OW 0 88 9 195 148 22 0 0
VODI 0 32 9 124 302 108 0 0
ODI 0 0 0 39 200 173 1 0
CDI 0 0 0 0 183 565 36 0
VCDI 0 0 0 0 259 1127 894 0


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