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: 2019-07-25

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-07-29

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 1128 7 25 12 0 0 0
OW 0 420 77 238 13 2 0 0
VODI 0 59 22 1490 416 27 0 0
ODI 0 0 0 64 3089 277 0 0
CDI 0 0 0 0 342 16377 4133 366
VCDI 0 0 0 0 0 52 6174 2092
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 994 29 133 24 2 0 0
OW 0 288 39 373 93 32 0 0
VODI 0 315 38 879 576 187 0 0
ODI 0 10 0 430 2812 4709 454 0
CDI 0 0 0 2 367 11805 9683 2123
VCDI 0 0 0 0 0 0 170 335

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 0 385 17 8 0 0 0 0
OW 0 27 4 67 26 0 0 0
VODI 0 18 0 125 107 2 0 0
ODI 0 13 0 0 398 22 0 0
CDI 0 2 1 5 686 1001 4 0
VCDI 0 0 0 4 47 159 5 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 382 16 39 20 0 0 0
OW 0 32 5 119 101 1 0 0
VODI 0 14 0 41 178 14 0 0
ODI 0 16 0 1 181 55 0 0
CDI 0 1 1 5 474 861 4 0
VCDI 0 0 0 4 310 253 5 0

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1422 2315 3 19 0 0 0 0
OW 0 180 34 117 1 0 0 0
VODI 0 6 12 721 222 0 0 0
ODI 0 0 0 24 2258 243 0 0
CDI 0 0 0 0 206 2137 62 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 1422 2127 5 39 0 0 0 0
OW 0 249 14 172 17 0 0 0
VODI 0 125 30 608 867 20 0 0
ODI 0 0 0 62 1679 874 0 0
CDI 0 0 0 0 124 1486 62 0
VCDI 0 0 0 0 0 0 0 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 3867 1527 14 20 0 0 0 0
OW 0 119 14 93 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 3867 1501 17 83 0 0 0 0
OW 0 145 11 28 0 0 0 0
VODI 0 0 0 2 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

Siberian Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 289 2369 47 114 0 0 0 0
OW 0 508 74 568 0 0 0 0
VODI 0 44 27 2667 287 0 0 0
ODI 0 0 0 10 242 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 289 2168 59 268 5 0 0 0
OW 0 507 46 849 44 0 0 0
VODI 0 246 42 1955 395 0 0 0
ODI 0 0 1 287 85 0 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 1756 2260 12 29 2 0 0 0
OW 0 207 15 63 4 0 0 0
VODI 0 5 4 272 87 0 0 0
ODI 0 0 0 2 312 22 0 0
CDI 0 0 0 0 21 227 4 0
VCDI 0 0 0 0 0 0 22 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1756 2256 14 48 5 0 0 0
OW 0 110 7 41 12 0 0 0
VODI 0 106 10 192 60 0 0 0
ODI 0 0 0 84 315 114 0 0
CDI 0 0 0 1 34 135 26 0
VCDI 0 0 0 0 0 0 0 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 3650 2032 18 56 5 0 0 0
OW 0 103 15 94 5 0 0 0
VODI 0 7 2 214 75 0 0 0
ODI 0 0 0 4 50 0 0 0
CDI 0 0 0 1 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 3650 2020 23 109 16 0 0 0
OW 0 91 9 112 34 0 0 0
VODI 0 31 3 138 76 0 0 0
ODI 0 0 0 10 9 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 8431 2594 13 16 1 0 0 0
OW 0 25 19 61 3 0 0 0
VODI 0 0 0 40 19 6 0 0
ODI 0 0 0 4 78 14 0 0
CDI 0 0 0 0 1 6 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 8431 2580 14 30 2 0 0 0
OW 0 38 14 53 4 2 0 0
VODI 0 1 4 32 42 11 0 0
ODI 0 0 0 6 53 9 0 0
CDI 0 0 0 0 1 4 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 7185 2705 29 152 2 0 0 0
OW 0 15 4 169 8 0 0 0
VODI 0 0 0 648 181 0 0 0
ODI 0 0 0 31 555 2 0 0
CDI 0 0 0 0 10 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 7185 2661 28 220 21 0 0 0
OW 0 59 5 309 35 0 0 0
VODI 0 0 0 409 361 0 0 0
ODI 0 0 0 62 299 0 0 0
CDI 0 0 0 0 40 2 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 11331 1653 0 4 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 11331 1653 0 4 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 5116 598 6 13 1 0 0 0
OW 0 4 2 25 1 0 0 0
VODI 0 0 0 30 2 0 0 0
ODI 0 0 0 3 2 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 5116 598 7 25 2 0 0 0
OW 0 4 1 17 1 0 0 0
VODI 0 0 0 20 2 0 0 0
ODI 0 0 0 9 1 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 5217 2806 67 493 1 0 0 0
OW 0 0 0 3 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 5217 2806 67 496 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

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 19847 349 4 9 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 19847 349 4 9 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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