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: 2019-03-28

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-04-01

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 18 60 87 0 0
OW 0 0 0 5 11 33 4 0
VODI 0 0 0 6 8 34 10 0
ODI 0 0 0 16 15 38 15 0
CDI 0 0 0 21 33 85 66 0
VCDI 0 0 0 21 63 696 7552 28005
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 17 63 101 6 0
OW 0 0 0 4 9 37 9 0
VODI 0 0 0 4 10 42 17 0
ODI 0 0 0 7 5 42 32 0
CDI 0 0 0 11 9 48 53 0
VCDI 0 0 0 44 94 703 7530 28005

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 22 0 0
VCDI 0 0 0 0 0 99 287 2725
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 5 0 0
VCDI 0 0 0 0 0 116 287 2725

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 1 0
CDI 0 0 0 0 0 4 29 17
VCDI 0 0 0 0 0 133 3860 5938
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 20 3
VCDI 0 0 0 0 0 134 3870 5952

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 15 4 0 0
VODI 0 0 0 13 63 114 1 0
ODI 0 0 0 17 33 85 21 0
CDI 0 0 0 10 36 80 57 0
VCDI 0 0 0 0 31 220 2291 2563
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 37 2 0
OW 0 0 0 2 21 83 11 0
VODI 0 0 0 7 20 22 21 0
ODI 0 0 0 11 37 26 15 0
CDI 0 0 0 16 41 73 34 0
VCDI 0 0 0 4 59 262 2287 2563

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 19
CDI 0 0 0 0 0 0 3 63
VCDI 0 0 0 0 0 2 459 6700
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 26
VCDI 0 0 0 0 0 2 462 6756

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 27 30 17 0
CDI 0 0 0 0 53 136 101 4
VCDI 0 0 0 0 19 292 2229 2418
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 5 11 0
CDI 0 0 0 0 15 64 110 5
VCDI 0 0 0 0 84 389 2226 2417

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 2 0 0 0 0 0 0
OW 0 54 8 68 15 0 0 0
VODI 0 14 4 122 178 6 0 0
ODI 0 6 0 55 224 101 3 0
CDI 0 5 0 61 101 270 46 13
VCDI 0 1 1 22 103 597 3691 560
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 12 2 33 23 0 0 0
OW 0 32 3 27 32 8 0 0
VODI 0 16 3 54 109 27 0 0
ODI 0 7 3 52 140 77 5 0
CDI 0 5 1 65 129 175 60 18
VCDI 0 10 1 97 188 687 3675 555

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3650 3689 50 244 84 0 0 0
OW 0 153 23 183 121 13 0 0
VODI 0 49 20 151 288 23 0 0
ODI 0 3 0 36 157 72 0 0
CDI 0 3 1 26 104 293 0 0
VCDI 0 0 0 13 123 804 955 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3650 3596 37 238 128 0 0 0
OW 0 195 26 121 109 10 0 0
VODI 0 86 18 124 210 20 0 0
ODI 0 13 10 80 100 45 0 0
CDI 0 5 3 64 110 186 0 0
VCDI 0 2 0 26 220 944 955 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 5078 3384 20 66 8 0 0 0
OW 0 118 12 91 7 0 0 0
VODI 0 49 7 115 39 1 0 0
ODI 0 1 2 63 98 0 0 0
CDI 0 0 0 8 189 26 0 0
VCDI 0 0 0 0 61 476 1777 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5078 3318 21 57 6 0 0 0
OW 0 136 5 79 7 0 0 0
VODI 0 78 11 88 33 0 0 0
ODI 0 20 3 70 62 1 0 0
CDI 0 0 1 44 125 10 0 0
VCDI 0 0 0 5 169 492 1777 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 8056 3453 45 169 84 7 0 0
OW 0 53 21 130 76 0 0 0
VODI 0 0 2 86 101 9 0 0
ODI 0 0 0 3 117 39 0 0
CDI 0 0 0 0 70 212 80 0
VCDI 0 0 0 0 0 91 84 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8056 3380 46 193 123 11 0 0
OW 0 93 8 96 61 10 0 0
VODI 0 33 14 65 79 32 0 0
ODI 0 0 0 33 70 46 19 0
CDI 0 0 0 1 105 124 87 0
VCDI 0 0 0 0 10 135 58 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 1 4 3 0 0 0
OW 0 5 0 7 5 2 0 0
VODI 0 9 3 22 13 7 0 0
ODI 0 0 0 9 18 9 5 0
CDI 0 0 0 18 67 50 26 0
VCDI 0 0 0 12 34 413 3201 1860
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 1 1 3 4 1 0 0
OW 0 4 1 5 6 5 0 0
VODI 0 9 2 22 5 6 8 0
ODI 0 0 0 3 9 3 9 0
CDI 0 0 0 3 9 6 35 0
VCDI 0 0 0 36 107 460 3180 1860

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 1 0 0
ODI 0 0 0 0 0 76 0 0
CDI 0 0 0 0 0 154 33 0
VCDI 0 0 0 0 0 381 3175 4767
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 2 0 0
ODI 0 0 0 0 0 67 0 0
CDI 0 0 0 0 0 116 45 2
VCDI 0 0 0 0 0 427 3163 4765

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10085 4808 75 387 55 0 0 0
OW 0 317 37 427 168 2 0 0
VODI 0 8 8 168 530 44 0 0
ODI 0 0 0 20 493 179 3 0
CDI 0 0 0 0 158 566 52 0
VCDI 0 0 0 0 1 613 972 33
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10085 4958 91 481 191 5 0 0
OW 0 119 19 308 205 26 0 0
VODI 0 56 10 176 422 82 5 0
ODI 0 0 0 23 332 180 19 0
CDI 0 0 0 14 248 531 69 0
VCDI 0 0 0 0 7 580 934 33


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