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: 2020-06-25

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2020-06-29

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 15 3 11 6 6 0 0
OW 0 15 5 45 13 7 0 0
VODI 0 12 1 71 113 16 0 0
ODI 0 6 4 46 402 135 0 0
CDI 0 0 0 9 236 7883 872 0
VCDI 0 0 0 0 76 10968 14229 1697
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 19 6 52 23 12 0 0
OW 0 8 1 49 33 17 0 0
VODI 0 6 2 25 135 70 0 0
ODI 0 10 1 12 322 704 8 0
CDI 0 5 3 44 235 6823 1905 0
VCDI 0 0 0 0 98 11389 13188 1697

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 26 8 136 38 4 0 0
OW 0 16 1 20 19 0 0 0
VODI 0 2 0 20 61 1 0 0
ODI 0 0 0 3 108 15 0 0
CDI 0 0 0 0 646 490 0 0
VCDI 0 0 0 0 1125 394 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 37 8 143 42 4 0 0
OW 0 5 1 16 29 1 0 0
VODI 0 2 0 17 58 4 0 0
ODI 0 0 0 3 78 7 0 0
CDI 0 0 0 0 436 320 0 0
VCDI 0 0 0 0 1354 568 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 0 203 20 314 34 0 0 0
OW 0 18 5 117 32 0 0 0
VODI 0 0 0 152 102 0 0 0
ODI 0 0 0 28 514 18 0 0
CDI 0 0 0 36 453 3720 0 0
VCDI 0 0 0 0 215 3288 713 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 211 20 349 58 0 0 0
OW 0 9 4 130 49 0 0 0
VODI 0 1 0 70 173 1 0 0
ODI 0 0 1 39 351 30 0 0
CDI 0 0 0 51 453 3384 0 0
VCDI 0 0 0 8 266 3611 713 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 161 1420 41 143 12 0 0 0
OW 0 45 10 192 55 0 0 0
VODI 0 3 3 235 270 0 0 0
ODI 0 0 0 10 1063 148 0 0
CDI 0 0 0 0 92 1725 0 0
VCDI 0 0 0 0 0 26 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 161 1423 46 227 50 0 0 0
OW 0 34 2 177 141 4 0 0
VODI 0 10 5 120 519 54 0 0
ODI 0 1 1 56 616 181 0 0
CDI 0 0 0 0 166 1594 0 0
VCDI 0 0 0 0 0 66 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 0 801 31 279 36 1 0 0
OW 0 99 36 276 70 10 0 0
VODI 0 3 2 345 394 11 0 0
ODI 0 0 0 7 1053 165 0 0
CDI 0 0 0 0 119 3453 54 0
VCDI 0 0 0 1 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 0 758 46 506 181 9 0 0
OW 0 122 19 216 352 12 0 0
VODI 0 23 4 185 693 159 0 0
ODI 0 0 0 0 411 1440 0 0
CDI 0 0 0 0 35 2020 54 0
VCDI 0 0 0 1 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 12 2459 46 173 11 0 0 0
OW 0 118 36 291 57 1 0 0
VODI 0 11 3 206 267 7 0 0
ODI 0 0 0 4 724 204 0 0
CDI 0 0 0 0 6 690 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 12 2364 44 225 36 0 0 0
OW 0 184 29 216 146 4 0 0
VODI 0 38 12 218 513 78 0 0
ODI 0 2 0 15 363 428 0 0
CDI 0 0 0 0 7 392 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 2199 2131 20 80 1 0 0 0
OW 2 56 20 110 9 0 0 0
VODI 0 1 2 117 171 0 0 0
ODI 0 0 0 0 510 110 0 0
CDI 0 0 0 0 33 743 16 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 2200 2103 30 127 3 0 0 0
OW 1 78 7 124 50 0 0 0
VODI 0 7 5 56 471 28 0 0
ODI 0 0 0 0 183 229 0 0
CDI 0 0 0 0 17 596 16 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 7183 3381 41 135 25 0 0 0
OW 0 34 8 117 51 2 0 0
VODI 0 10 2 89 117 12 0 0
ODI 0 0 0 3 77 17 0 0
CDI 0 0 0 0 3 24 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 7183 3386 39 166 58 1 0 0
OW 0 28 10 108 97 8 0 0
VODI 0 11 2 70 93 23 0 0
ODI 0 0 0 0 25 23 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 5768 2616 36 541 38 0 0 0
OW 0 13 4 169 121 0 0 0
VODI 0 0 0 54 415 18 0 0
ODI 0 0 0 27 1136 137 0 0
CDI 0 0 0 10 293 300 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 5768 2613 36 653 203 0 0 0
OW 0 12 4 81 383 1 0 0
VODI 0 4 0 25 540 95 0 0
ODI 0 0 0 10 522 201 0 0
CDI 0 0 0 32 355 158 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 11419 1365 14 57 10 0 0 0
OW 0 6 3 42 4 0 0 0
VODI 0 0 0 59 9 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 11419 1353 13 59 10 0 0 0
OW 0 18 4 41 5 0 0 0
VODI 0 0 0 58 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

Baffin Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 35 3370 57 309 7 5 0 0
OW 0 90 19 271 65 8 0 0
VODI 0 2 1 199 290 10 0 0
ODI 0 0 0 3 567 62 0 0
CDI 0 0 0 0 34 399 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 35 3422 71 493 71 16 0 0
OW 0 40 6 202 149 14 0 0
VODI 0 0 0 87 395 23 0 0
ODI 0 0 0 0 344 319 0 0
CDI 0 0 0 0 4 112 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 163 3042 86 511 66 8 0 0
OW 0 7 3 274 171 5 0 0
VODI 0 26 0 184 838 9 2 0
ODI 0 166 0 76 2079 145 9 0
CDI 0 6 0 11 215 438 13 0
VCDI 0 0 0 0 0 34 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 163 2979 73 557 278 16 0 0
OW 0 62 13 182 295 13 0 0
VODI 0 12 3 231 1259 64 1 0
ODI 0 149 0 48 1308 191 16 0
CDI 0 45 0 38 229 305 6 0
VCDI 0 0 0 0 0 50 1 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 16653 2267 58 417 59 0 0 0
OW 0 13 7 112 55 0 0 0
VODI 0 0 0 103 90 1 0 0
ODI 0 0 0 5 213 34 0 0
CDI 0 0 0 0 10 112 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 16653 2272 59 465 86 0 0 0
OW 0 8 6 123 76 0 0 0
VODI 0 0 0 47 119 14 0 0
ODI 0 0 0 2 120 64 0 0
CDI 0 0 0 0 26 69 0 0
VCDI 0 0 0 0 0 0 0 0


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