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: 2017-10-05

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2017-10-09

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 157 2019 39 186 3 0 0 0
OW 0 74 22 225 61 3 0 0
VODI 0 1 7 248 306 15 0 0
ODI 0 0 0 25 475 92 0 0
CDI 0 0 0 0 170 798 14 0
VCDI 0 0 0 0 1 2580 12465 16916
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 157 1779 39 250 83 4 0 0
OW 0 239 17 210 132 21 0 0
VODI 0 76 12 196 378 76 0 0
ODI 0 0 0 28 291 208 0 0
CDI 0 0 0 0 123 545 41 0
VCDI 0 0 0 0 9 2634 12438 16916

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 0 375 25 68 7 0 0 0
OW 0 7 9 58 83 0 0 0
VODI 0 0 0 56 92 1 0 0
ODI 0 0 0 1 225 12 0 0
CDI 0 0 0 0 84 77 0 0
VCDI 0 0 0 0 30 460 543 920
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 382 33 131 50 0 0 0
OW 0 0 1 49 117 1 0 0
VODI 0 0 0 2 62 12 0 0
ODI 0 0 0 0 58 7 0 0
CDI 0 0 0 1 92 40 1 7
VCDI 0 0 0 0 142 490 542 913

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2292 2537 13 35 0 0 0 0
OW 0 204 34 190 23 0 0 0
VODI 0 1 4 202 174 0 0 0
ODI 0 0 0 5 352 57 0 0
CDI 0 0 0 0 52 484 34 0
VCDI 0 0 0 0 0 305 1952 1032
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 2292 2467 19 128 21 0 0 0
OW 0 172 19 132 76 0 0 0
VODI 0 103 13 163 285 66 0 0
ODI 0 0 0 9 190 177 27 0
CDI 0 0 0 0 29 315 120 1
VCDI 0 0 0 0 0 288 1839 1031

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5049 565 0 0 0 0 0 0
OW 0 2 5 10 0 0 0 0
VODI 0 0 0 15 0 0 0 0
ODI 0 0 0 1 7 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 5049 480 0 0 0 0 0 0
OW 0 81 1 0 0 0 0 0
VODI 0 6 4 25 0 0 0 0
ODI 0 0 0 1 7 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 1253 3530 37 108 1 0 0 0
OW 0 169 29 179 29 0 0 0
VODI 0 9 4 162 141 4 0 0
ODI 0 0 0 8 260 28 0 0
CDI 0 0 0 0 65 479 9 0
VCDI 0 0 0 0 0 243 499 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 1253 3542 47 210 74 11 0 0
OW 0 159 18 143 99 7 0 0
VODI 0 7 5 92 125 41 0 0
ODI 0 0 0 12 122 100 0 0
CDI 0 0 0 0 73 212 51 0
VCDI 0 0 0 0 3 383 457 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 0 1229 49 365 86 0 0 0
OW 0 278 33 275 179 2 0 0
VODI 0 64 17 461 234 24 0 0
ODI 0 0 0 13 440 59 0 0
CDI 0 0 0 0 66 238 4 0
VCDI 0 0 0 0 0 356 854 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 942 56 502 325 50 0 0
OW 0 453 25 212 89 27 0 0
VODI 0 175 17 303 191 4 0 0
ODI 0 1 1 97 240 32 0 0
CDI 0 0 0 0 132 78 9 0
VCDI 0 0 0 0 28 488 849 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 3584 2089 13 45 1 0 0 0
OW 87 297 8 48 4 0 0 0
VODI 2 28 1 46 27 0 0 0
ODI 0 0 0 10 26 0 0 0
CDI 0 0 0 0 7 8 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 3673 2166 14 61 3 0 0 0
OW 0 231 7 55 11 0 0 0
VODI 0 17 1 32 25 0 0 0
ODI 0 0 0 1 26 0 0 0
CDI 0 0 0 0 0 8 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 10092 1218 10 11 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 10092 1218 10 11 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 8885 2018 18 139 72 0 0 0
OW 0 12 4 157 56 0 0 0
VODI 0 0 0 14 82 7 0 0
ODI 0 0 0 0 53 17 0 0
CDI 0 0 0 0 27 66 15 0
VCDI 0 0 0 0 0 42 12 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8885 2025 22 253 120 2 0 0
OW 0 5 0 52 57 9 0 0
VODI 0 0 0 5 55 16 0 0
ODI 0 0 0 0 24 10 0 0
CDI 0 0 0 0 31 28 13 0
VCDI 0 0 0 0 3 67 14 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 12573 415 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 12573 415 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 4172 1241 24 65 7 0 0 0
OW 0 3 7 41 20 0 0 0
VODI 0 0 0 27 17 1 0 0
ODI 0 0 0 2 37 6 0 0
CDI 0 0 0 0 15 29 1 0
VCDI 0 0 0 0 41 44 3 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4172 1215 17 84 25 0 0 0
OW 0 24 5 5 6 1 0 0
VODI 0 5 9 32 8 2 0 0
ODI 0 0 0 14 33 14 0 0
CDI 0 0 0 0 19 18 4 0
VCDI 0 0 0 0 46 45 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 5939 2618 9 21 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 5939 2618 9 21 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 19819 376 10 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 19819 376 10 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


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