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: 2017-01-19

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2017-01-23

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 0 305 264 201 34 0 0 0
OW 0 0 38 114 29 5 0 0
VODI 0 0 8 132 45 11 0 0
ODI 0 0 0 90 82 22 0 0
CDI 0 0 0 69 154 95 1 0
VCDI 0 0 0 72 295 1283 6769 26784
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 285 192 158 39 0 0 0
OW 0 14 44 59 29 8 0 0
VODI 0 6 36 94 39 15 0 0
ODI 0 0 20 99 51 21 0 0
CDI 0 0 15 92 80 89 3 0
VCDI 0 0 3 176 401 1283 6767 26784

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 1
CDI 0 0 0 0 0 0 0 5
VCDI 0 0 0 0 0 63 426 2638
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 10
VCDI 0 0 0 0 0 63 426 2634

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 3
VCDI 0 0 0 0 0 0 4 9975
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 4 9978

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 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 40 1204 4410
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 40 1204 4410

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 3 5 0
CDI 0 0 0 0 0 31 103 18
VCDI 0 0 0 0 0 287 2975 3824
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 4 0
CDI 0 0 0 0 0 28 98 16
VCDI 0 0 0 0 0 292 2981 3826

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 12 7 10
VCDI 0 0 0 0 0 601 1643 3053
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 17 7 4
VCDI 0 0 0 0 0 596 1643 3059

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 186 146 111 0 0 0 0
OW 0 0 1 111 2 0 0 0
VODI 0 0 0 393 47 4 0 0
ODI 0 0 1 224 321 31 5 0
CDI 0 0 0 0 292 476 53 0
VCDI 0 0 0 0 16 755 2934 222
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 179 117 72 0 0 0 0
OW 0 7 19 91 1 0 0 0
VODI 0 0 11 180 24 19 0 0
ODI 0 0 0 193 171 83 11 0
CDI 0 0 1 295 308 203 93 0
VCDI 0 0 0 8 174 961 2888 222

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2442 6094 539 401 24 0 0 0
OW 0 1 5 189 69 0 0 0
VODI 0 0 0 135 204 0 0 0
ODI 0 1 0 24 235 20 0 0
CDI 0 0 0 2 137 266 5 0
VCDI 0 0 0 0 21 325 192 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2442 6054 508 402 49 0 0 0
OW 0 41 34 174 115 0 0 0
VODI 0 0 2 120 159 1 0 0
ODI 0 1 0 50 156 24 0 0
CDI 0 0 0 5 147 230 6 0
VCDI 0 0 0 0 64 356 191 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 3193 4585 689 189 2 0 0 0
OW 0 0 0 133 10 0 0 0
VODI 0 0 0 90 55 0 0 0
ODI 0 0 0 27 115 2 0 0
CDI 0 0 0 2 144 98 0 0
VCDI 0 0 0 0 17 718 1627 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 3193 4585 678 156 3 0 0 0
OW 0 0 11 130 15 0 0 0
VODI 0 0 0 92 49 0 0 0
ODI 0 0 0 48 85 2 0 0
CDI 0 0 0 15 135 59 0 0
VCDI 0 0 0 0 56 757 1627 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 4951 4907 2133 312 88 24 0 0
OW 0 0 40 103 44 8 0 0
VODI 0 0 0 54 62 14 0 0
ODI 0 0 0 8 80 38 0 0
CDI 0 0 0 1 43 72 0 0
VCDI 0 0 0 0 0 6 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4951 4907 2157 331 112 27 0 0
OW 0 0 16 60 47 16 0 0
VODI 0 0 0 50 42 6 0 0
ODI 0 0 0 30 43 19 0 0
CDI 0 0 0 7 72 91 0 0
VCDI 0 0 0 0 1 3 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 5 28 29 6 0 0 0
OW 0 0 0 7 11 0 0 0
VODI 0 0 0 4 17 9 0 0
ODI 0 0 0 2 5 12 0 0
CDI 0 0 0 0 6 30 3 0
VCDI 0 0 0 0 3 287 2917 2422
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 5 28 28 13 1 0 0
OW 0 0 0 6 14 6 0 0
VODI 0 0 0 6 6 15 0 0
ODI 0 0 0 2 5 18 1 0
CDI 0 0 0 0 5 16 15 0
VCDI 0 0 0 0 5 282 2904 2422

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 2 0 0
CDI 0 0 0 0 3 73 60 7
VCDI 0 0 0 0 13 696 6444 1289
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 1 5 0 0
CDI 0 0 0 0 4 106 62 7
VCDI 0 0 0 0 11 660 6442 1289

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4124 5755 5119 615 17 0 0 0
OW 0 2 2 256 88 0 0 0
VODI 0 0 0 152 230 3 0 0
ODI 0 0 0 24 310 29 0 0
CDI 0 0 0 0 266 228 0 0
VCDI 0 0 0 0 289 2100 600 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4124 5757 5073 531 37 0 0 0
OW 0 0 42 178 80 0 0 0
VODI 0 0 6 212 163 7 0 0
ODI 0 0 0 93 254 41 0 0
CDI 0 0 0 33 303 196 0 0
VCDI 0 0 0 0 363 2116 600 0


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