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: 2017-08-10

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2017-08-14

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 94 1680 53 211 20 0 0 0
OW 0 174 43 418 28 0 0 0
VODI 0 25 9 791 416 0 0 0
ODI 0 0 0 92 8887 728 0 0
CDI 0 0 0 3 1200 13852 1113 1
VCDI 0 0 0 0 0 2980 3649 435
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 94 1680 57 370 59 0 0 0
OW 0 157 31 437 117 7 0 0
VODI 0 41 14 488 1899 50 0 1
ODI 0 1 3 200 6932 3373 134 10
CDI 0 0 0 20 1544 9942 1366 99
VCDI 0 0 0 0 0 4188 3262 326

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 296 462 15 49 0 0 0 0
OW 0 18 8 112 0 0 0 0
VODI 0 4 2 244 49 0 0 0
ODI 0 0 0 112 107 6 0 0
CDI 0 0 0 24 237 261 32 0
VCDI 0 0 0 4 19 118 927 27
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 296 411 10 37 0 0 0 0
OW 0 55 8 103 1 0 0 0
VODI 0 18 6 184 39 0 0 0
ODI 0 0 1 121 59 8 0 0
CDI 0 0 0 95 290 241 40 0
VCDI 0 0 0 5 23 136 919 27

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2093 2947 7 12 0 0 0 0
OW 0 797 40 136 0 0 0 0
VODI 0 175 28 829 39 0 0 0
ODI 0 0 0 181 762 0 0 0
CDI 0 0 0 3 448 829 0 0
VCDI 0 0 0 0 0 281 375 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2093 3193 12 63 0 0 0 0
OW 0 326 9 94 0 0 0 0
VODI 0 334 39 373 103 0 0 0
ODI 0 62 12 349 333 0 0 0
CDI 0 4 3 282 686 520 0 0
VCDI 0 0 0 0 127 590 375 0

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4855 712 7 3 0 0 0 0
OW 0 4 3 26 0 0 0 0
VODI 0 0 0 19 14 0 0 0
ODI 0 0 0 0 11 0 0 0
CDI 0 0 0 0 0 0 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 4855 716 10 38 1 0 0 0
OW 0 0 0 8 11 0 0 0
VODI 0 0 0 2 13 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 0 0

Siberian Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3392 2723 18 50 0 0 0 0
OW 0 38 21 192 6 0 0 0
VODI 0 0 0 135 159 0 0 0
ODI 0 0 0 0 329 36 0 0
CDI 0 0 0 0 4 143 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 3392 2675 24 153 3 0 0 0
OW 0 79 8 121 62 0 0 0
VODI 0 7 7 103 204 29 0 0
ODI 0 0 0 0 229 150 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0

Laptev Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1001 2158 10 29 2 0 0 0
OW 1 82 40 87 6 0 0 0
VODI 0 1 4 169 59 0 0 0
ODI 0 0 0 16 291 22 0 0
CDI 0 0 0 0 56 906 315 0
VCDI 0 0 0 0 0 1 70 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1001 2066 17 38 5 0 0 0
OW 1 133 19 85 21 0 0 0
VODI 0 41 13 108 104 3 0 0
ODI 0 1 5 70 197 373 54 0
CDI 0 0 0 0 87 553 323 0
VCDI 0 0 0 0 0 0 8 0

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2674 3371 42 188 23 0 0 0
OW 0 4 2 24 0 0 0 0
VODI 0 0 0 2 1 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 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2674 3331 30 119 5 0 0 0
OW 0 32 11 61 4 0 0 0
VODI 0 12 3 33 15 0 0 0
ODI 0 0 0 1 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9846 1470 5 9 1 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 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9846 1469 5 9 1 0 0 0
OW 0 1 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 0 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 8079 2922 39 84 4 0 0 0
OW 0 20 16 174 0 0 0 0
VODI 0 0 0 225 16 0 0 0
ODI 0 0 0 0 50 11 0 0
CDI 0 0 0 0 8 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 8079 2790 30 121 4 0 0 0
OW 0 138 17 146 3 0 0 0
VODI 0 14 8 210 29 0 0 0
ODI 0 0 0 6 42 43 0 0
CDI 0 0 0 0 0 16 0 0
VCDI 0 0 0 0 0 0 0 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 12988 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 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12988 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 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 3223 2449 26 83 14 0 0 0
OW 0 1 1 6 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 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3223 2444 25 83 14 0 0 0
OW 0 6 2 6 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 0 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 7431 1144 5 7 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 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7431 1144 5 7 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 0 0

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 19112 1060 10 27 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 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 19112 1060 10 27 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 0 0


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