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

Validation of sea ice concentration - European sector

Bulletin date: 2024-08-22

Data source: OSI SAF N.H. multi-product sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: 2024-08-16:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 88267 3320 37 44 0 0 0 0
OW 0 897 132 156 0 0 0 0
VODI 0 156 140 859 84 3 0 0
ODI 0 0 2 198 1666 274 1 0
CDI 0 0 0 0 573 2684 715 0
VCDI 0 0 0 0 0 20 188 0
...date precedes bulletin

Date: 2024-08-18:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 88945 2899 42 26 0 0 0 0
OW 0 826 104 118 4 0 0 0
VODI 0 200 126 755 108 1 0 0
ODI 0 0 0 162 1418 445 0 0
CDI 0 0 0 0 405 3040 587 0
VCDI 0 0 0 0 0 22 183 0
...date precedes bulletin

Date: 2024-08-20:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 89734 2704 44 45 0 0 0 0
OW 0 525 227 183 0 0 0 0
VODI 0 2 7 804 131 0 0 1
ODI 0 0 0 30 1961 74 0 0
CDI 0 0 0 0 262 2515 454 3
VCDI 0 0 0 0 0 31 542 137
...date precedes bulletin

Date: 2024-08-22:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 88902 3671 48 33 0 0 0 0
OW 19 522 194 173 2 0 0 0
VODI 0 16 35 753 133 1 0 0
ODI 0 1 0 101 1639 156 0 0
CDI 0 0 0 0 468 2790 259 0
VCDI 0 0 0 0 0 211 289 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 88906 3797 51 40 0 0 0 0
OW 15 393 194 173 2 0 0 0
VODI 0 19 32 735 108 1 0 0
ODI 0 1 0 112 1671 158 0 0
CDI 0 0 0 0 461 2743 219 0
VCDI 0 0 0 0 0 256 329 0

Date: 2024-08-24:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 89959 2661 35 28 0 0 0 0
OW 24 460 193 211 6 0 0 0
VODI 0 26 43 693 161 1 0 0
ODI 0 1 0 53 1100 479 2 0
CDI 0 0 0 0 184 2773 516 0
VCDI 0 0 0 0 0 123 684 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 89961 2775 45 37 0 0 0 0
OW 22 337 176 208 2 0 0 0
VODI 0 35 50 663 130 1 0 0
ODI 0 1 0 77 1114 522 14 0
CDI 0 0 0 0 205 2738 486 0
VCDI 0 0 0 0 0 115 702 0

Date: 2024-08-26:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 90225 2757 13 29 0 0 0 0
OW 29 311 133 227 4 0 0 0
VODI 0 12 2 774 89 1 0 0
ODI 0 0 0 31 1208 39 0 0
CDI 0 0 0 0 150 3532 82 0
VCDI 0 0 0 0 0 72 696 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 90215 2695 23 51 0 0 0 0
OW 39 331 66 296 9 0 0 0
VODI 0 53 59 608 132 0 0 0
ODI 0 1 0 106 1007 242 0 0
CDI 0 0 0 0 303 3234 585 0
VCDI 0 0 0 0 0 168 193 0

Date: 2024-08-28:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 90025 2776 24 10 0 0 0 0
OW 44 478 113 134 2 0 0 0
VODI 0 125 54 587 124 1 0 0
ODI 0 1 0 81 1120 133 0 0
CDI 0 0 0 0 240 3584 39 0
VCDI 0 0 0 0 0 87 634 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 90017 2769 45 18 0 0 0 0
OW 52 467 69 204 4 0 0 0
VODI 0 141 74 453 200 1 0 0
ODI 0 3 3 137 906 386 2 0
CDI 0 0 0 0 375 3289 579 0
VCDI 0 0 0 0 1 129 92 0

Date: 2024-08-30:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 90017 2652 5 2 0 0 0 0
OW 61 566 127 92 0 0 0 0
VODI 0 132 73 636 75 0 0 0
ODI 0 0 0 67 1153 111 1 0
CDI 0 0 0 0 327 3230 118 2
VCDI 0 0 0 0 0 130 636 203
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 90018 2638 12 6 0 0 0 0
OW 60 564 101 155 0 0 0 0
VODI 0 148 88 518 108 0 0 0
ODI 0 0 4 118 856 363 11 0
CDI 0 0 0 0 591 2974 649 60
VCDI 0 0 0 0 0 134 95 145


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