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: 2019-07-18

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2019-07-22

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 0 473 20 47 27 0 0 0
OW 0 107 38 217 15 9 0 0
VODI 0 0 0 364 327 22 0 0
ODI 0 0 0 29 2645 330 0 0
CDI 0 0 0 0 386 25266 4106 0
VCDI 0 0 0 0 0 410 2064 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 500 36 183 60 4 0 0
OW 0 77 21 291 270 20 0 0
VODI 0 3 1 141 1488 220 0 0
ODI 0 0 0 42 1324 4984 6 0
CDI 0 0 0 0 258 20300 4293 0
VCDI 0 0 0 0 0 509 1871 0

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 0 288 10 41 1 0 0 0
OW 0 6 3 28 8 0 0 0
VODI 0 7 1 77 137 11 0 0
ODI 0 1 0 24 342 65 0 0
CDI 0 0 0 21 364 1147 155 0
VCDI 0 0 0 3 337 53 3 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 293 11 47 5 0 0 0
OW 0 7 2 31 98 6 0 0
VODI 0 2 1 32 226 51 0 0
ODI 0 0 0 14 157 142 0 0
CDI 0 0 0 62 258 1036 158 0
VCDI 0 0 0 8 445 41 0 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 691 2216 15 71 0 0 0 0
OW 0 278 29 125 5 0 0 0
VODI 0 25 13 580 291 0 0 0
ODI 0 0 0 24 3028 188 0 0
CDI 0 0 0 0 583 1814 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 691 2199 22 104 8 0 0 0
OW 0 240 15 162 113 0 0 0
VODI 0 80 20 524 1028 0 0 0
ODI 0 0 0 10 2066 506 0 0
CDI 0 0 0 0 692 1502 0 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 2448 1999 21 184 0 0 0 0
OW 0 77 10 167 0 0 0 0
VODI 0 23 11 494 122 0 0 0
ODI 0 0 0 1 97 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 2448 1968 28 457 42 0 0 0
OW 0 116 12 340 144 0 0 0
VODI 0 15 2 49 33 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 74 1759 59 315 2 0 0 0
OW 20 81 24 414 30 0 0 0
VODI 0 13 0 1196 536 0 0 0
ODI 0 0 0 37 2682 0 0 0
CDI 0 0 0 0 3 1 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 56 1677 74 779 99 0 0 0
OW 20 127 9 515 409 0 0 0
VODI 17 33 0 648 2108 0 0 0
ODI 1 16 0 20 637 1 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 1155 2605 19 61 2 0 0 0
OW 1 182 21 98 16 0 0 0
VODI 0 2 4 115 150 0 0 0
ODI 0 0 0 0 572 13 0 0
CDI 0 0 0 0 38 272 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 1145 2544 30 133 13 0 0 0
OW 11 240 14 92 53 0 0 0
VODI 0 5 0 49 470 0 0 0
ODI 0 0 0 0 214 179 0 0
CDI 0 0 0 0 28 106 0 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 3597 1960 25 97 5 0 0 0
OW 14 27 9 128 19 0 0 0
VODI 0 0 0 130 102 0 0 0
ODI 0 0 0 1 216 0 0 0
CDI 0 0 0 0 1 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 3576 1873 17 112 13 0 0 0
OW 35 114 16 124 49 0 0 0
VODI 0 0 1 120 179 0 0 0
ODI 0 0 0 0 101 0 0 0
CDI 0 0 0 0 1 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 8916 2029 13 10 0 0 0 0
OW 0 19 12 75 1 0 0 0
VODI 0 0 0 40 76 0 0 0
ODI 0 0 0 0 136 0 0 0
CDI 0 0 0 0 4 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 8916 2004 12 12 0 0 0 0
OW 0 35 12 90 17 0 0 0
VODI 0 8 1 23 91 0 0 0
ODI 0 1 0 0 98 0 0 0
CDI 0 0 0 0 11 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 6620 2787 66 330 10 0 0 0
OW 0 26 4 176 23 0 0 0
VODI 0 0 0 422 260 3 0 0
ODI 0 0 0 105 711 28 0 0
CDI 0 0 0 0 14 111 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 6620 2797 67 361 24 0 0 0
OW 0 16 3 231 102 0 0 0
VODI 0 0 0 365 528 16 0 0
ODI 0 0 0 76 346 113 0 0
CDI 0 0 0 0 18 13 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 11778 1172 7 31 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 11778 1172 7 31 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 4225 1402 13 64 17 0 0 0
OW 0 37 0 7 11 0 0 0
VODI 0 1 0 1 15 0 0 0
ODI 0 0 0 0 8 0 0 0
CDI 0 0 0 0 2 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 4225 1397 13 68 21 0 0 0
OW 0 41 0 4 10 0 0 0
VODI 0 2 0 0 14 0 0 0
ODI 0 0 0 0 6 0 0 0
CDI 0 0 0 0 2 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 3452 4243 69 608 58 0 0 0
OW 0 2 2 84 33 0 0 0
VODI 0 0 0 10 26 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 3452 4241 68 603 65 0 0 0
OW 0 4 3 92 44 0 0 0
VODI 0 0 0 7 8 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 19064 1116 6 23 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 19064 1116 6 23 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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