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: 2020-04-09

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

Model vs. observations, sea ice class contingency tables

Date: 2020-04-03:

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 9 0 0
VODI 0 0 0 0 7 27 33 0
ODI 0 0 0 0 97 123 31 0
CDI 0 0 0 0 175 370 111 3
VCDI 0 0 0 0 198 2002 14066 28614
...date precedes bulletin

Date: 2020-04-05:

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 2 1 2 0
VODI 0 0 0 0 35 13 32 0
ODI 0 0 0 0 106 121 28 0
CDI 0 0 0 0 124 399 123 0
VCDI 0 0 0 0 206 2345 13230 29099
...date precedes bulletin

Date: 2020-04-07:

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 11 0 0
VODI 0 0 0 0 3 69 5 0
ODI 0 0 0 1 36 174 33 0
CDI 0 0 0 1 106 478 211 0
VCDI 0 0 0 0 188 1914 14038 28598
...date precedes bulletin

Date: 2020-04-09:

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 11 1 0 0
VODI 0 0 0 0 88 11 1 0
ODI 0 0 0 0 130 54 4 0
CDI 0 0 0 5 179 327 71 0
VCDI 0 0 0 2 298 1708 11015 31961
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 7 1 0 0
VODI 0 0 0 0 120 14 1 0
ODI 0 0 0 0 111 76 3 0
CDI 0 0 0 2 173 315 76 4
VCDI 0 0 0 5 295 1695 11011 31957

Date: 2020-04-11:

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 8 3 0 0
VODI 0 0 0 10 105 24 3 0
ODI 0 0 0 0 99 88 18 1
CDI 0 0 0 8 171 259 88 6
VCDI 0 0 0 14 411 1744 9447 33359
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 4 0 0
VODI 0 0 0 10 145 42 2 0
ODI 0 0 0 0 99 103 13 0
CDI 0 0 0 11 127 258 89 4
VCDI 0 0 0 11 414 1711 9452 33362

Date: 2020-04-13:

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 11 43 16 4 0
ODI 0 0 0 13 135 163 32 10
CDI 0 0 0 15 159 710 149 101
VCDI 0 0 0 10 305 1987 10385 31618
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 84 34 19 0
ODI 0 0 0 5 60 192 29 1
CDI 0 0 0 12 84 454 110 0
VCDI 0 0 0 32 414 2196 10412 31728

Date: 2020-04-15:

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 1 0 0
VODI 0 0 0 7 5 22 7 0
ODI 0 0 0 36 87 164 41 0
CDI 0 0 0 32 171 587 185 0
VCDI 0 0 0 23 282 1798 9442 32976
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 2 0 0
VODI 0 0 0 1 27 68 19 0
ODI 0 0 0 8 80 149 36 0
CDI 0 0 0 29 95 470 139 0
VCDI 0 0 0 60 343 1883 9481 32976

Date: 2020-04-17:

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 1 1 0
VODI 0 0 0 5 3 26 16 0
ODI 0 0 0 24 61 128 34 2
CDI 0 0 0 17 136 494 165 59
VCDI 0 0 0 0 260 1698 10098 32638
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 1 7 0 0 0
VODI 0 0 0 8 24 29 23 0
ODI 0 0 0 16 45 219 51 0
CDI 0 0 0 15 77 411 151 9
VCDI 0 0 0 6 307 1688 10089 32690


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