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: 2018-05-03

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-05-07

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 0 494 1 28 9 0 0 0
OW 0 60 9 25 18 6 0 0
VODI 0 14 4 65 25 16 0 0
ODI 0 10 2 36 54 20 2 0
CDI 0 4 2 37 96 96 21 0
VCDI 0 0 0 28 249 1148 9538 24785
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 468 3 39 21 4 0 0
OW 0 37 3 12 17 15 0 0
VODI 0 27 3 34 19 23 4 0
ODI 0 18 2 26 33 18 16 0
CDI 0 24 6 50 64 65 41 0
VCDI 0 8 1 58 297 1161 9500 24785

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 9 0
VCDI 0 0 0 0 10 39 497 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 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 8 0
VCDI 0 0 0 0 10 39 498 2578

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 7 711 9264
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 7 711 9264

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 110 3 3 0 0 0 0
OW 0 119 10 85 0 0 0 0
VODI 0 2 2 63 147 0 0 0
ODI 0 0 0 4 114 5 0 0
CDI 0 0 0 9 76 60 0 0
VCDI 0 0 0 0 105 404 2370 1963
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 116 2 2 0 0 0 0
OW 0 91 2 22 0 0 0 0
VODI 0 24 11 80 102 0 0 0
ODI 0 0 0 44 99 10 0 0
CDI 0 0 0 10 74 20 0 0
VCDI 0 0 0 6 167 439 2370 1963

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 1 0
VCDI 0 0 0 0 0 167 2347 4731
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 3 0
VCDI 0 0 0 0 0 167 2345 4731

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 3 9 0
VCDI 0 0 0 0 10 445 2891 1968
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 12 15 0
VCDI 0 0 0 0 10 436 2885 1968

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 3 2 0 0
CDI 0 0 0 0 24 42 0 16
VCDI 0 0 0 0 9 602 3533 2100
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 0 0
CDI 0 0 0 0 9 49 30 42
VCDI 0 0 0 0 27 596 3503 2074

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4366 3314 35 119 29 0 0 0
OW 0 71 19 166 67 0 0 0
VODI 0 2 2 152 214 1 0 0
ODI 0 0 0 32 356 43 4 0
CDI 0 0 0 23 368 522 39 0
VCDI 0 0 0 0 101 903 383 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4364 3257 35 165 37 0 0 0
OW 2 127 17 126 100 0 0 0
VODI 0 3 4 127 217 2 0 0
ODI 0 0 0 34 203 53 7 0
CDI 0 0 0 11 305 220 62 0
VCDI 0 0 0 29 273 1194 357 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 6513 3027 26 102 13 0 0 0
OW 0 12 12 107 50 0 0 0
VODI 0 0 0 47 134 15 0 0
ODI 0 0 0 0 146 27 0 0
CDI 0 0 0 0 44 279 4 0
VCDI 0 0 0 0 0 179 930 29
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6513 3002 25 114 30 0 0 0
OW 0 37 13 109 69 6 0 0
VODI 0 0 0 32 162 29 0 0
ODI 0 0 0 1 83 85 1 0
CDI 0 0 0 0 38 222 96 0
VCDI 0 0 0 0 5 158 837 29

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8430 3502 46 229 112 23 0 0
OW 0 11 8 119 53 44 0 0
VODI 0 0 0 34 146 28 3 0
ODI 0 0 0 0 87 39 4 0
CDI 0 0 0 0 4 64 2 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 8430 3513 54 341 187 85 1 0
OW 0 0 0 39 133 27 4 0
VODI 0 0 0 2 81 68 4 0
ODI 0 0 0 0 1 18 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 0 0 19 0 0 0 0
OW 0 0 0 15 8 0 0 0
VODI 0 0 0 20 28 0 0 0
ODI 0 0 0 0 68 5 0 0
CDI 0 0 0 0 95 126 4 0
VCDI 0 0 0 0 30 784 3945 656
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 24 8 0 0 0
OW 0 0 0 17 7 0 0 0
VODI 0 0 0 13 26 0 0 0
ODI 0 0 0 0 40 5 0 0
CDI 0 0 0 0 78 35 0 0
VCDI 0 0 0 0 70 875 3949 656

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 4 4 0 0 0
VODI 0 0 0 14 53 0 0 0
ODI 0 0 0 21 54 23 0 0
CDI 0 0 0 16 113 310 36 0
VCDI 0 0 0 0 205 1855 4836 1043
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 1 3 0 0 0
VODI 0 0 0 6 12 0 0 0
ODI 0 0 0 7 60 7 0 0
CDI 0 0 0 30 108 188 39 0
VCDI 0 0 0 11 246 1993 4833 1043

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11482 4272 72 686 365 73 13 0
OW 0 0 0 86 139 53 2 0
VODI 0 0 0 55 245 71 0 0
ODI 0 0 0 25 355 223 0 0
CDI 0 0 0 8 298 1126 74 0
VCDI 0 0 0 0 52 282 152 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11482 4272 72 743 495 115 13 0
OW 0 0 0 36 156 94 2 0
VODI 0 0 0 5 203 157 5 0
ODI 0 0 0 10 151 185 60 0
CDI 0 0 0 31 248 638 45 0
VCDI 0 0 0 35 201 639 116 0


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