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: 2018-05-24

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-05-28

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 0 754 24 111 2 0 0 0
OW 0 67 11 135 20 0 0 0
VODI 0 27 5 89 64 1 0 0
ODI 0 0 3 41 84 24 0 0
CDI 0 0 0 15 128 500 91 0
VCDI 0 0 0 0 0 1682 9399 23625
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 747 30 162 2 0 0 0
OW 0 43 3 83 50 2 0 0
VODI 0 36 4 54 61 14 0 0
ODI 0 16 4 44 45 61 0 0
CDI 0 6 2 48 138 437 116 0
VCDI 0 0 0 0 2 1693 9374 23625

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 15 25 1 0 0
ODI 0 0 0 57 36 12 1 0
CDI 0 0 0 69 45 21 64 0
VCDI 0 0 0 0 3 159 1434 1191
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 12 3 0 0
ODI 0 0 0 16 27 11 0 0
CDI 0 0 0 60 47 20 94 3
VCDI 0 0 0 65 23 159 1405 1188

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 11 2 0 0
VODI 0 0 0 34 84 8 0 0
ODI 0 0 0 31 118 12 0 0
CDI 0 0 0 81 470 172 12 0
VCDI 0 0 0 89 239 671 3968 3980
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 9 2 0 0
OW 0 0 0 10 13 3 0 0
VODI 0 0 0 18 52 12 0 0
ODI 0 0 0 3 94 10 0 0
CDI 0 0 0 19 161 179 40 0
VCDI 0 0 0 185 593 659 3940 3980

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 19 935 6 4 0 0 0 0
OW 0 220 8 31 5 0 0 0
VODI 0 103 12 68 36 1 0 0
ODI 0 25 11 29 57 3 0 0
CDI 0 2 6 70 96 63 1 0
VCDI 0 0 0 1 86 267 2516 973
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 19 871 8 27 1 0 0 0
OW 0 138 4 24 9 0 0 0
VODI 0 110 3 28 23 0 0 0
ODI 0 79 6 16 43 6 0 0
CDI 0 78 11 39 44 37 6 0
VCDI 0 9 11 69 160 291 2511 973

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 5 6 0 0 0
ODI 0 0 0 14 10 1 0 0
CDI 0 8 5 82 89 47 22 0
VCDI 0 0 0 6 88 209 3030 3624
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 1 1 0 0 0
ODI 0 0 0 2 9 6 1 0
CDI 0 1 1 60 60 27 71 0
VCDI 0 7 4 44 123 224 2980 3624

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 23 0 3 4 0
VODI 0 4 5 65 48 30 11 0
ODI 0 33 11 51 60 33 39 0
CDI 0 164 24 186 197 110 106 0
VCDI 0 37 6 52 169 1071 2753 31
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 1 4 0
OW 0 0 0 14 3 14 7 0
VODI 0 2 4 48 41 32 21 0
ODI 0 30 9 57 57 32 64 0
CDI 0 138 22 150 149 86 200 0
VCDI 0 68 11 108 224 1082 2617 31

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 30 16 0 0
CDI 0 0 0 3 87 230 130 0
VCDI 0 0 0 43 239 2330 3167 56
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 56 195 188 0
VCDI 0 0 0 46 300 2371 3109 56

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6372 3311 50 150 16 0 0 0
OW 0 65 11 188 29 1 0 0
VODI 0 16 10 149 187 1 0 0
ODI 0 0 0 34 243 51 0 0
CDI 0 0 0 0 13 250 119 0
VCDI 0 0 0 0 0 0 65 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6372 3364 57 333 72 0 0 0
OW 0 21 6 83 142 7 0 0
VODI 0 5 7 44 141 35 0 0
ODI 0 2 1 33 91 129 16 0
CDI 0 0 0 28 42 132 122 0
VCDI 0 0 0 0 0 0 46 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 6830 2803 16 177 31 0 0 0
OW 0 25 10 95 65 1 0 0
VODI 0 0 0 55 146 16 0 0
ODI 0 0 0 5 229 67 0 0
CDI 0 0 0 0 47 587 70 0
VCDI 0 0 0 0 0 267 154 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6830 2793 18 229 75 1 0 0
OW 0 33 6 49 143 22 0 0
VODI 0 2 2 35 181 92 5 0
ODI 0 0 0 19 46 130 12 0
CDI 0 0 0 0 73 417 78 0
VCDI 0 0 0 0 0 276 129 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 9440 2777 53 286 123 0 0 0
OW 0 0 0 16 64 0 0 0
VODI 0 0 0 0 72 9 0 0
ODI 0 0 0 0 52 35 0 0
CDI 0 0 0 0 13 48 0 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9440 2777 53 302 182 0 0 0
OW 0 0 0 0 94 12 0 0
VODI 0 0 0 0 48 61 0 0
ODI 0 0 0 0 0 19 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 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 0 491 6 24 0 0 0 0
OW 0 193 19 54 0 0 0 0
VODI 0 27 22 193 28 0 0 0
ODI 0 1 1 93 316 7 2 0
CDI 0 12 3 64 386 1290 135 0
VCDI 0 0 0 0 4 438 1994 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 396 6 19 0 0 0 0
OW 0 153 16 25 0 0 0 0
VODI 0 108 11 99 25 0 7 0
ODI 0 49 10 124 116 11 12 0
CDI 0 18 8 161 557 1016 154 0
VCDI 0 0 0 0 36 708 1958 0

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 508 10 47 6 0 0 0
OW 0 74 2 61 44 0 0 0
VODI 0 30 2 38 108 7 0 0
ODI 0 9 5 51 117 102 0 0
CDI 0 5 0 62 304 647 84 3
VCDI 0 0 0 9 301 1147 3990 814
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 461 9 56 11 0 0 0
OW 0 62 2 26 41 0 0 0
VODI 0 52 1 32 115 39 0 0
ODI 0 33 2 24 67 163 2 0
CDI 0 18 5 79 159 498 169 5
VCDI 0 0 0 51 487 1203 3903 812

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12418 3990 80 732 497 19 0 0
OW 0 0 4 166 372 5 0 0
VODI 0 0 0 69 500 29 0 0
ODI 0 0 0 4 403 88 0 0
CDI 0 0 0 0 91 459 205 0
VCDI 0 0 0 0 0 13 65 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12418 3989 82 828 1004 64 0 0
OW 0 1 2 108 230 4 0 0
VODI 0 0 0 33 339 53 0 0
ODI 0 0 0 2 207 205 0 0
CDI 0 0 0 0 83 273 229 0
VCDI 0 0 0 0 0 14 41 0


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