Description of algorithm
Interpretation of results
Full domain
American sector
  Ice concntr, edge pos
  Contingency tables
European sector
Asian sector

Validation of sea ice concentration - American sector

Reference date: 2020-11-12

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2020-11-06:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 8158 4869 47 193 24 0 0 0
OW 75 472 12 111 82 11 0 0
VODI 58 733 42 441 627 258 88 0
ODI 1 32 3 166 758 775 183 0
CDI 0 7 1 30 276 1190 1472 232
VCDI 0 0 0 0 1 705 4750 18983

Date: 2020-11-08:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 7646 4995 43 169 19 0 0 0
OW 46 484 49 194 64 8 0 0
VODI 20 497 38 371 558 138 8 0
ODI 0 27 5 185 714 900 211 1
CDI 0 1 1 16 304 1592 1366 227
VCDI 0 0 0 0 4 1190 5575 18200

Date: 2020-11-10:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 7607 4702 45 256 81 0 0 0
OW 60 421 26 136 61 3 0 0
VODI 35 450 23 317 249 33 0 0
ODI 0 59 9 205 965 715 112 3
CDI 0 0 0 17 317 1907 770 67
VCDI 0 0 0 0 7 554 6221 19433

Date: 2020-11-12:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 6437 4892 27 104 44 4 0 0
OW 14 1136 36 189 116 47 0 0
VODI 19 536 29 321 186 49 0 0
ODI 0 155 14 147 677 760 35 1
CDI 0 0 0 15 359 1609 976 8
VCDI 0 0 0 0 8 758 7249 18909

Date: 2020-11-14:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 5204 5515 90 476 37 19 0 0
OW 66 526 18 199 132 49 0 0
VODI 45 514 20 268 316 104 48 0
ODI 7 80 6 211 407 647 90 3
CDI 0 0 0 4 411 1239 1465 18
VCDI 0 0 0 6 77 1479 10631 15439

Date: 2020-11-16:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 5367 5041 95 408 114 5 0 0
OW 50 291 15 257 485 38 1 0
VODI 19 401 21 290 405 56 14 0
ODI 0 89 0 33 542 455 91 0
CDI 0 0 0 0 324 1349 1418 79
VCDI 0 0 0 0 44 832 9179 18058

Date: 2020-11-18:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 4934 4988 93 435 219 5 0 0
OW 31 360 22 218 410 108 0 0
VODI 1 294 18 314 554 111 0 0
ODI 0 200 8 139 561 241 10 1
CDI 0 5 1 18 439 1766 581 5
VCDI 0 0 0 0 42 934 7290 20510

Date: 2020-11-20:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 3980 5548 93 431 184 16 0 0
OW 82 353 17 222 269 258 0 0
VODI 2 243 13 244 368 471 1 1
ODI 0 88 14 169 521 452 19 2
CDI 0 2 0 7 203 1541 773 6
VCDI 0 0 0 0 20 729 6679 21845


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