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: 2018-10-04

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-10-08

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 1533 5864 30 131 6 0 0 0
OW 0 502 79 411 47 0 0 0
VODI 0 31 40 813 517 0 0 0
ODI 0 0 0 72 1827 129 0 0
CDI 0 0 0 5 432 2094 71 0
VCDI 0 0 0 0 38 8698 10788 2744
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1533 4969 48 356 82 0 0 0
OW 0 920 15 298 207 0 0 0
VODI 0 491 72 512 786 74 0 0
ODI 0 17 14 223 809 358 0 0
CDI 0 0 0 43 881 1069 421 0
VCDI 0 0 0 0 102 9420 10438 2744

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 0 254 17 92 0 0 0 0
OW 0 10 2 63 5 0 0 0
VODI 0 10 2 193 83 0 0 0
ODI 0 0 0 26 61 13 0 0
CDI 0 0 0 14 101 42 0 0
VCDI 0 0 0 0 245 488 855 557
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 255 17 91 0 0 0 0
OW 0 6 1 6 10 0 0 0
VODI 0 1 1 149 72 0 0 0
ODI 0 7 1 59 12 12 0 0
CDI 0 5 1 71 88 24 0 0
VCDI 0 0 0 12 313 507 855 557

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1361 1928 14 68 45 0 0 0
OW 0 161 34 97 48 2 0 0
VODI 0 6 11 231 109 5 0 0
ODI 0 0 0 35 268 68 0 0
CDI 0 0 0 0 171 292 11 0
VCDI 0 0 0 0 21 397 3327 1272
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1361 1812 22 114 51 0 0 0
OW 0 148 8 86 84 2 0 0
VODI 0 111 15 66 138 32 0 0
ODI 0 24 12 97 98 131 0 0
CDI 0 0 2 68 162 201 130 0
VCDI 0 0 0 0 129 398 3208 1272

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5620 34 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 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5620 34 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 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 2298 2979 17 68 1 0 0 0
OW 0 317 25 150 13 0 0 0
VODI 0 52 11 694 111 0 0 0
ODI 0 0 0 13 497 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 2298 3191 34 241 13 0 0 0
OW 0 132 16 369 50 0 0 0
VODI 0 25 3 315 546 0 0 0
ODI 0 0 0 0 13 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 4300 1022 2 2 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 4300 1021 2 2 0 0 0 0
OW 0 1 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

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5830 488 3 10 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 5830 488 3 10 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

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10740 583 8 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 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 10740 583 8 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 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 7359 2387 25 142 50 0 0 0
OW 0 2 0 84 58 0 0 0
VODI 0 2 1 27 117 2 0 0
ODI 0 0 0 7 106 43 0 0
CDI 0 0 0 4 34 339 10 0
VCDI 0 0 0 0 10 349 538 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7359 2376 21 155 72 0 0 0
OW 0 9 3 72 106 3 0 0
VODI 0 6 2 18 88 40 0 0
ODI 0 0 0 10 65 74 0 0
CDI 0 0 0 8 27 215 14 0
VCDI 0 0 0 1 17 401 534 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 12988 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 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 12988 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 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 5029 576 0 0 0 0 0 0
OW 0 30 2 7 2 0 0 0
VODI 0 19 0 9 10 0 0 0
ODI 0 8 0 5 12 0 0 0
CDI 0 2 0 0 17 5 0 0
VCDI 0 0 0 0 37 33 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5029 504 0 0 0 0 0 0
OW 0 49 1 2 0 0 0 0
VODI 0 41 1 10 8 0 0 0
ODI 0 27 0 7 6 0 0 0
CDI 0 13 0 2 22 5 0 0
VCDI 0 1 0 0 42 33 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 5794 2747 20 26 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 5794 2747 20 26 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

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 19945 258 3 3 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 19945 258 3 3 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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