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

Validation of sea ice concentration - Full domain

Reference date: 2020-11-19

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2020-11-13:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 95141 15639 153 586 180 62 0 0
OW 1116 2063 62 556 677 582 23 0
VODI 67 1230 83 818 1232 2243 666 5
ODI 0 194 25 374 1303 2466 928 51
CDI 0 0 0 10 705 4690 4769 711
VCDI 0 0 0 0 60 6168 14616 26794

Date: 2020-11-15:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 95370 15382 157 834 255 68 0 0
OW 803 1660 73 555 618 591 10 0
VODI 159 1149 49 639 1043 1479 406 0
ODI 0 286 29 488 1239 2618 1135 21
CDI 0 5 1 24 897 6075 3120 945
VCDI 0 0 0 0 69 4066 24296 20434

Date: 2020-11-17:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 93333 16565 176 729 219 168 3 0
OW 695 1928 74 658 880 332 28 0
VODI 28 964 67 807 962 959 296 0
ODI 0 307 35 525 1303 2839 937 0
CDI 0 2 0 22 1048 6910 2864 14
VCDI 0 0 0 0 70 3457 18303 28541

Date: 2020-11-19:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 92897 16670 168 879 498 30 0 0
OW 202 1823 67 460 476 141 0 0
VODI 2 895 57 727 1208 1052 442 1
ODI 0 466 58 595 1170 2105 1033 13
CDI 0 35 6 86 902 7215 3086 70
VCDI 0 0 0 0 66 3375 17290 30782

Date: 2020-11-21:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 89189 15959 136 585 118 13 0 0
OW 598 3805 116 1140 649 173 0 0
VODI 8 866 76 828 1141 1210 222 0
ODI 0 250 48 632 1349 2057 1147 21
CDI 0 19 1 57 763 7382 3801 133
VCDI 0 0 0 0 21 2766 17019 32750

Date: 2020-11-23:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 86669 15796 154 581 44 8 0 0
OW 1141 3064 118 1345 1409 294 0 0
VODI 57 785 80 961 1347 889 66 1
ODI 0 96 35 466 1560 1781 1660 55
CDI 0 2 1 39 589 5120 6574 410
VCDI 0 0 0 0 2 1446 14078 38325

Date: 2020-11-25:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 85251 16396 160 861 365 118 0 0
OW 868 2768 83 467 848 539 0 0
VODI 348 1514 97 1004 1158 708 10 3
ODI 1 116 32 636 1667 1480 257 389
CDI 0 0 0 102 939 4297 4241 2739
VCDI 0 0 0 0 61 2341 16458 37726

Date: 2020-11-27:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 84849 16999 171 924 664 512 14 0
OW 378 2295 88 458 384 385 37 0
VODI 339 1733 115 1096 1236 442 139 0
ODI 5 201 35 601 1710 1125 453 61
CDI 0 4 2 78 1000 5297 3393 2051
VCDI 0 0 0 14 84 3057 14744 39875


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