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: 2023-11-16

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2023-11-10:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 9144 2738 403 565 9 0 0 0
OW 14 171 43 729 130 0 0 0
VODI 4 140 41 444 434 24 0 0
ODI 1 74 67 271 436 147 0 0
CDI 0 4 0 117 571 1021 53 0
VCDI 0 0 0 6 273 2364 5390 20038

Date: 2023-11-12:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 9201 2396 175 359 46 0 0 0
OW 27 243 52 378 224 1 0 0
VODI 9 204 31 318 593 40 0 0
ODI 0 102 34 271 543 198 1 0
CDI 0 5 0 127 776 1075 59 2
VCDI 0 0 0 3 197 2361 5504 20311

Date: 2023-11-14:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 8790 2653 163 377 42 0 0 0
OW 30 216 33 250 212 2 0 0
VODI 2 251 58 186 428 14 0 0
ODI 0 55 72 332 855 199 1 0
CDI 0 0 0 85 1058 1346 129 0
VCDI 0 0 0 0 222 3933 6562 17310

Date: 2023-11-16:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 7966 2996 214 270 15 0 0 0
OW 16 200 18 247 402 2 0 0
VODI 1 39 39 211 392 53 0 0
ODI 1 2 4 178 553 282 0 0
CDI 0 0 0 113 952 2052 239 8
VCDI 0 0 0 2 215 2297 6242 19645

Date: 2023-11-18:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 7345 3321 212 239 6 0 0 0
OW 3 165 12 147 139 8 0 0
VODI 0 25 8 164 519 142 0 0
ODI 0 15 2 175 578 214 11 0
CDI 0 1 0 46 875 1719 422 0
VCDI 0 0 0 0 100 1798 6206 21249

Date: 2023-11-20:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 6663 3806 220 304 13 0 0 0
OW 20 81 15 131 73 8 0 0
VODI 14 68 8 114 125 123 3 0
ODI 2 11 4 103 558 417 24 0
CDI 0 0 0 12 740 1565 462 21
VCDI 0 0 0 0 36 1301 6621 22200

Date: 2023-11-22:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 5095 5318 439 258 3 0 0 0
OW 1 68 32 204 14 0 0 0
VODI 0 44 20 171 74 12 0 0
ODI 0 5 12 150 276 139 5 0
CDI 0 0 0 93 553 1279 221 5
VCDI 0 0 0 1 211 2507 6958 21698

Date: 2023-11-24:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 5214 4988 273 317 2 0 0 0
OW 2 88 16 172 60 16 0 0
VODI 2 66 19 160 61 32 0 0
ODI 0 37 14 199 230 86 7 0
CDI 0 1 0 42 505 1407 137 1
VCDI 0 0 0 2 66 2612 8099 20933


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