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

Validation of sea ice concentration - American sector

Bulletin date: 2019-04-04

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

Model vs. observations, sea ice class contingency tables

Date: 2019-03-29:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 43 59 1 0
VODI 0 0 0 3 29 37 1 0
ODI 0 0 0 2 50 55 12 0
CDI 0 0 0 0 168 154 105 6
VCDI 0 0 0 0 114 2489 13512 29026
...date precedes bulletin

Date: 2019-03-31:

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 0 0 0 0 1 15 0 0
OW 0 0 0 2 37 98 0 0
VODI 0 0 0 11 25 22 16 0
ODI 0 0 0 15 60 65 14 0
CDI 0 0 0 12 95 231 91 6
VCDI 0 0 0 0 103 2051 13416 29480
...date precedes bulletin

Date: 2019-04-02:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 15 12 0 0
VODI 0 0 0 9 67 126 0 0
ODI 0 0 0 14 37 108 9 0
CDI 0 0 0 15 67 244 43 3
VCDI 0 0 0 1 51 1507 10781 32757
...date precedes bulletin

Date: 2019-04-04:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 9 1 0 0
VODI 0 0 0 0 42 140 1 0
ODI 0 0 0 0 27 123 19 0
CDI 0 0 0 0 63 195 111 2
VCDI 0 0 0 0 142 1558 11751 31682
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 6 0 0 0
VODI 0 0 0 0 42 105 0 0
ODI 0 0 0 0 23 148 38 0
CDI 0 0 0 0 54 189 88 2
VCDI 0 0 0 0 158 1575 11756 31682

Date: 2019-04-06:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 20 52 0 0
ODI 0 0 0 0 46 136 23 0
CDI 0 0 0 0 75 190 26 8
VCDI 0 0 0 0 68 1700 9666 33856
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 1 0 0
VODI 0 0 0 0 22 51 0 0
ODI 0 0 0 0 44 132 20 0
CDI 0 0 0 0 74 188 41 4
VCDI 0 0 0 0 69 1706 9654 33860

Date: 2019-04-08:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 1 0 0 0
ODI 0 0 0 0 121 12 1 0
CDI 0 0 0 0 165 382 116 14
VCDI 0 0 0 0 63 1358 10234 33399
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 2 0 0 0
ODI 0 0 0 0 95 7 0 0
CDI 0 0 0 0 121 214 90 37
VCDI 0 0 0 0 132 1531 10261 33376

Date: 2019-04-10:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 4 0 0 0
ODI 0 0 0 0 48 16 0 0
CDI 0 0 0 0 119 190 11 19
VCDI 0 0 0 0 32 1571 8387 35469
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 1 0 0 0
ODI 0 0 0 0 34 8 0 0
CDI 0 0 0 0 81 101 13 29
VCDI 0 0 0 0 87 1668 8385 35459

Date: 2019-04-12:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 3 0 0 0
VODI 0 0 0 0 10 0 0 0
ODI 0 0 0 0 71 17 4 0
CDI 0 0 0 7 176 194 135 19
VCDI 0 0 0 7 264 1883 10565 32511
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 12 0 0 0
ODI 0 0 0 3 54 5 4 0
CDI 0 0 0 6 114 103 85 0
VCDI 0 0 0 5 344 1986 10615 32530


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