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: 2019-02-28

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-03-04

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 4 57 42 0 0
OW 0 0 0 0 9 59 2 0
VODI 0 0 0 0 4 68 14 0
ODI 0 0 0 0 1 38 26 0
CDI 0 0 0 8 0 19 45 0
VCDI 0 0 0 13 22 372 3766 32333
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 4 63 74 3 0
OW 0 0 0 0 6 52 3 0
VODI 0 0 0 0 2 55 17 0
ODI 0 0 0 0 0 30 24 0
CDI 0 0 0 0 0 18 46 0
VCDI 0 0 0 21 22 369 3760 32333

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 4 0 0
VCDI 0 0 0 0 0 33 98 2998
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 37 98 2998

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 3 0 3
VCDI 0 0 0 0 0 136 1280 8560
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 0 23
VCDI 0 0 0 0 0 136 1280 8540

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 1 0 0 0 0
VODI 0 0 0 124 145 0 0 0
ODI 0 0 0 7 188 46 0 0
CDI 0 0 0 0 18 194 25 1
VCDI 0 0 0 0 0 89 2421 2395
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 3 23 0 0 0
OW 0 0 0 95 67 0 0 0
VODI 0 0 0 34 166 25 0 0
ODI 0 0 0 0 75 62 10 0
CDI 0 0 0 0 20 99 38 1
VCDI 0 0 0 0 0 143 2398 2395

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 1 1 18
VCDI 0 0 0 0 0 0 629 6597
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 30
VCDI 0 0 0 0 0 1 630 6585

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 0 0 0
VCDI 0 0 0 0 0 0 0 5326
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 4
VCDI 0 0 0 0 0 0 0 5322

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 19 3 0 0 0
OW 0 0 0 11 13 0 0 0
VODI 0 0 0 1 20 0 0 0
ODI 0 0 0 0 15 1 10 0
CDI 0 0 0 0 26 27 36 34
VCDI 0 0 0 0 26 236 2764 3089
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 11 0 0 0 0
OW 0 0 0 15 12 0 0 0
VODI 0 0 0 5 16 0 0 0
ODI 0 0 0 0 17 0 0 0
CDI 0 0 0 0 21 16 0 21
VCDI 0 0 0 0 37 248 2810 3102

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2825 3456 65 318 367 32 0 0
OW 0 68 18 161 119 63 0 0
VODI 0 17 4 104 181 116 6 0
ODI 0 7 0 20 196 133 10 0
CDI 0 0 0 17 171 292 35 0
VCDI 0 0 0 9 105 1132 1284 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2825 3407 61 289 398 47 0 0
OW 0 102 20 118 69 72 0 0
VODI 0 24 6 149 115 104 3 0
ODI 0 11 0 37 180 107 9 0
CDI 0 4 0 12 187 210 30 0
VCDI 0 0 0 24 190 1228 1293 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 5224 3379 18 74 9 0 0 0
OW 0 147 5 59 17 0 0 0
VODI 0 75 15 75 51 0 0 0
ODI 0 28 3 66 74 5 0 0
CDI 0 3 1 55 93 41 0 0
VCDI 0 0 0 5 150 438 1506 80
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5224 3367 19 85 10 0 0 0
OW 0 137 4 42 16 0 0 0
VODI 0 78 12 56 37 0 0 0
ODI 0 39 4 57 51 0 0 0
CDI 0 11 3 59 80 16 0 0
VCDI 0 0 0 35 200 468 1506 80

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8723 3028 20 39 22 7 0 0
OW 0 149 24 61 11 4 0 0
VODI 0 38 15 107 42 10 0 0
ODI 0 0 0 35 93 10 0 0
CDI 0 0 0 0 99 86 19 0
VCDI 0 0 0 0 14 188 144 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8723 2999 25 74 37 10 0 0
OW 0 137 5 15 33 9 0 0
VODI 0 76 19 55 25 17 0 0
ODI 0 3 10 62 36 21 0 0
CDI 0 0 0 36 95 68 8 0
VCDI 0 0 0 0 55 180 155 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 0 1 2 0 0
OW 0 0 0 5 12 5 0 0
VODI 0 0 0 16 33 8 0 0
ODI 0 0 0 4 59 13 0 0
CDI 0 0 0 3 111 65 40 0
VCDI 0 0 0 0 130 812 2809 1675
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 1 3 0 0
OW 0 0 0 11 8 6 0 0
VODI 0 0 0 10 29 12 0 0
ODI 0 0 0 0 37 13 0 0
CDI 0 0 0 0 59 34 21 0
VCDI 0 0 0 7 212 837 2828 1675

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 0 0 0
CDI 0 0 0 0 0 1 5 7
VCDI 0 0 0 0 0 104 1572 6898
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 1 13 3
VCDI 0 0 0 0 0 104 1564 6902

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11361 4112 64 164 107 3 0 0
OW 0 119 20 190 113 31 0 0
VODI 0 14 6 167 253 92 0 0
ODI 0 0 0 1 299 242 3 0
CDI 0 0 0 0 90 746 156 0
VCDI 0 0 0 0 0 652 1204 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 11361 4058 67 222 179 12 0 0
OW 0 105 9 124 128 59 0 0
VODI 0 72 9 103 180 162 1 0
ODI 0 10 5 67 175 240 23 0
CDI 0 0 0 6 185 629 234 0
VCDI 0 0 0 0 15 664 1105 0


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