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: 2018-11-08

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-11-12

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 111 1208 12 76 82 0 0 0
OW 0 88 5 56 75 5 0 0
VODI 0 44 6 81 108 9 0 0
ODI 0 18 3 50 123 35 0 0
CDI 0 8 3 30 142 257 0 81
VCDI 0 0 2 16 266 3891 14597 15414
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 111 1109 5 50 48 0 0 0
OW 0 103 5 31 47 1 0 0
VODI 0 73 9 70 95 3 0 0
ODI 0 35 4 58 95 5 0 0
CDI 0 29 3 52 124 84 0 6
VCDI 0 17 5 48 387 4104 14597 15489

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 6 0 0
ODI 0 0 0 0 0 8 2 0
CDI 0 0 0 0 0 19 5 0
VCDI 0 0 0 0 0 217 747 2129
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 4 0 0
ODI 0 0 0 0 0 6 0 0
CDI 0 0 0 0 0 11 1 0
VCDI 0 0 0 0 0 229 753 2129

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 2 1 19 32 0 0 0
OW 0 0 0 0 27 0 0 0
VODI 0 0 0 0 34 11 0 0
ODI 0 0 0 0 19 17 0 0
CDI 0 0 0 0 21 115 5 0
VCDI 0 0 0 0 0 598 3331 5750
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 2 1 19 32 0 0 0
OW 0 0 0 0 21 0 0 0
VODI 0 0 0 0 32 7 0 0
ODI 0 0 0 0 19 19 2 0
CDI 0 0 0 0 25 51 49 0
VCDI 0 0 0 0 4 664 3285 5750

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1221 2218 50 276 76 0 0 0
OW 20 20 3 91 170 25 0 0
VODI 0 4 0 17 388 114 0 0
ODI 0 0 0 0 215 246 0 0
CDI 0 0 0 0 1 190 12 0
VCDI 0 0 0 0 0 117 180 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1217 2224 49 273 92 0 0 0
OW 24 17 4 91 207 21 0 0
VODI 0 1 0 20 358 85 0 0
ODI 0 0 0 0 131 206 0 0
CDI 0 0 0 0 62 219 24 0
VCDI 0 0 0 0 0 161 168 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 0 6 4 16 25 0 0 0
OW 0 0 0 44 47 22 0 0
VODI 0 0 0 9 50 91 0 0
ODI 0 0 0 0 15 98 47 0
CDI 0 0 0 0 1 83 309 203
VCDI 0 0 0 0 0 95 2860 3221
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 3 2 5 30 0 0 0
OW 0 3 2 49 46 4 0 0
VODI 0 0 0 15 52 74 0 0
ODI 0 0 0 0 8 106 37 1
CDI 0 0 0 0 2 103 281 154
VCDI 0 0 0 0 0 102 2898 3269

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 12 0 0
CDI 0 0 0 0 0 136 31 0
VCDI 0 0 0 0 0 730 3544 873
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 16 0 0
CDI 0 0 0 0 0 142 32 0
VCDI 0 0 0 0 0 720 3543 873

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 584 1505 27 102 40 0 0 0
OW 1 202 8 154 102 8 0 0
VODI 0 7 3 144 359 44 0 0
ODI 0 0 0 2 116 206 0 0
CDI 0 0 0 3 33 737 114 0
VCDI 0 0 0 0 10 1117 703 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 585 1517 20 99 58 5 0 0
OW 0 167 13 130 93 14 0 0
VODI 0 30 5 164 305 104 0 0
ODI 0 0 0 8 134 168 25 0
CDI 0 0 0 3 46 459 142 0
VCDI 0 0 0 1 24 1362 650 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 9861 1401 16 28 0 0 0 0
OW 0 17 1 7 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 9861 1337 12 15 0 0 0 0
OW 0 44 2 0 0 0 0 0
VODI 0 37 3 20 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 7059 2457 4 19 0 0 0 0
OW 0 98 6 79 3 0 0 0
VODI 0 13 9 132 51 0 0 0
ODI 0 1 1 29 122 0 0 0
CDI 0 0 0 9 129 142 10 0
VCDI 0 0 0 0 27 802 494 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7059 2403 3 37 0 0 0 0
OW 0 104 6 46 11 0 0 0
VODI 0 57 7 81 41 0 0 0
ODI 0 4 2 75 55 8 0 0
CDI 0 1 2 24 141 43 1 0
VCDI 0 0 0 5 84 893 503 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 11549 1295 14 43 42 6 0 0
OW 0 4 2 11 12 0 0 0
VODI 0 0 0 5 3 0 0 0
ODI 0 0 0 1 1 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 11549 1299 16 57 56 6 0 0
OW 0 0 0 3 2 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 0 1008 21 141 21 0 0 0
OW 0 22 8 36 107 0 0 0
VODI 0 1 2 44 106 48 0 0
ODI 0 0 0 3 78 195 16 0
CDI 0 0 0 0 35 166 284 2
VCDI 0 0 0 0 35 1270 2056 98
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 785 10 40 0 0 0 0
OW 0 168 16 112 34 0 0 0
VODI 0 78 5 55 172 40 0 0
ODI 0 0 0 8 76 188 65 0
CDI 0 0 0 9 34 103 134 4
VCDI 0 0 0 0 66 1348 2157 96

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4335 2667 12 93 10 0 0 0
OW 0 146 7 73 11 0 0 0
VODI 0 90 17 128 44 0 0 0
ODI 0 9 1 70 177 21 0 0
CDI 0 0 0 1 54 146 0 0
VCDI 0 0 0 0 14 330 131 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4333 2531 10 86 1 0 0 0
OW 2 176 2 46 14 0 0 0
VODI 0 132 10 60 24 0 0 0
ODI 0 69 12 127 64 0 0 0
CDI 0 4 3 23 107 18 0 0
VCDI 0 0 0 23 100 479 131 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 17022 2602 21 63 1 0 0 0
OW 0 27 5 89 34 0 0 0
VODI 0 12 2 56 195 19 0 0
ODI 0 4 3 7 7 1 0 0
CDI 0 17 3 19 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 17022 2618 24 113 12 0 0 0
OW 0 17 4 92 106 0 0 0
VODI 0 9 3 9 72 4 0 0
ODI 0 1 0 2 43 15 0 0
CDI 0 16 3 18 4 1 0 0
VCDI 0 1 0 0 0 0 0 0


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