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

Validation of sea ice concentration - Full domain

Bulletin date: 2025-07-10

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

Model vs. observations, sea ice class contingency tables

Date: 2025-07-04:

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 80183 16784 151 114 41 6 0 0
OW 1403 5551 1043 1039 158 50 0 0
VODI 2964 883 620 2218 1328 168 10 0
ODI 0 158 106 1178 4799 1641 41 0
CDI 0 46 79 418 6178 12633 1205 0
VCDI 0 1 1 5 4252 17574 15780 1
...date precedes bulletin

Date: 2025-07-06:

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 79046 18931 208 186 51 13 2 0
OW 1394 5318 765 1003 196 51 4 0
VODI 2928 1061 664 2077 1342 201 11 0
ODI 0 214 194 1467 4852 1322 30 0
CDI 0 99 83 536 7086 12183 939 0
VCDI 0 1 1 7 3459 19033 13666 186
...date precedes bulletin

Date: 2025-07-08:

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 81473 18686 211 192 67 28 5 0
OW 1701 4140 589 826 306 51 2 0
VODI 2908 1136 716 1823 1103 114 3 0
ODI 0 332 273 1646 3970 1020 39 0
CDI 0 172 115 652 8018 13622 1011 0
VCDI 0 2 1 23 2899 23107 7828 0
...date precedes bulletin

Date: 2025-07-10:

Best estimate Forecast
...observations not yet available ...observations not yet available

Date: 2025-07-12:

Best estimate Forecast
...observations not yet available ...observations not yet available

Date: 2025-07-14:

Best estimate Forecast
...observations not yet available ...observations not yet available

Date: 2025-07-16:

Best estimate Forecast
...observations not yet available ...observations not yet available

Date: 2025-07-18:

Best estimate Forecast
...observations not yet available ...observations not yet available


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