Validation of sea ice concentration

Bulletin date: 2017-08-17

Model vs. observations, sea ice class contingency tables

Date: 2017-08-11:

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 19519 7703 1413 1621 410 105 56 0
OW 0 0 9 125 212 57 30 0
VODI 0 0 6 45 308 241 88 0
ODI 0 0 1 9 52 743 901 1
CDI 0 0 0 1 30 204 2678 337
VCDI 0 0 0 0 0 0 319 935
...date precedes bulletin

Date: 2017-08-15:

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 20837 7466 1290 1103 274 87 37 0
OW 0 5 41 190 145 39 11 0
VODI 0 0 13 116 249 113 26 0
ODI 0 0 2 32 241 727 254 0
CDI 0 0 0 3 20 943 2544 0
VCDI 0 0 0 0 0 90 713 548
...date precedes bulletin

Date: 2017-08-17:

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 21129 7468 1070 1053 250 64 37 0
OW 0 23 38 192 141 17 17 0
VODI 0 1 34 185 254 77 18 0
ODI 0 0 5 47 224 722 283 0
CDI 0 0 0 1 19 704 2561 3
VCDI 0 0 0 0 0 172 802 548
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 21129 7471 1076 1055 251 63 42 0
OW 0 21 33 186 141 14 9 0
VODI 0 0 32 187 237 72 19 0
ODI 0 0 6 50 238 708 296 0
CDI 0 0 0 0 21 708 2543 3
VCDI 0 0 0 0 0 191 809 548

Date: 2017-08-21:

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 21459 6771 1259 1032 469 83 3 0
OW 0 9 30 106 148 32 4 0
VODI 0 4 28 49 196 193 30 0
ODI 0 0 5 11 174 821 877 0
CDI 0 0 0 0 9 129 1913 48
VCDI 0 0 0 0 1 20 895 1351
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 21459 6770 1243 1010 395 84 5 0
OW 0 11 33 102 196 36 3 0
VODI 0 2 29 64 244 234 56 0
ODI 0 1 17 19 152 648 487 0
CDI 0 0 0 3 8 258 2568 405
VCDI 0 0 0 0 2 18 603 994

Date: 2017-08-23:

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 20827 7286 1285 1179 448 46 11 0
OW 0 20 19 135 104 33 5 0
VODI 0 10 23 80 192 172 18 0
ODI 0 0 4 23 199 789 833 0
CDI 0 0 0 1 16 162 1971 19
VCDI 0 0 0 1 2 7 630 1609
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 20827 7294 1267 1115 379 46 11 0
OW 0 13 37 149 142 25 7 0
VODI 0 8 16 108 251 233 37 0
ODI 0 1 11 44 174 628 561 0
CDI 0 0 0 2 13 271 2542 271
VCDI 0 0 0 1 2 6 310 1357

Date: 2017-08-25:

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 22640 5697 1265 1161 334 42 7 0
OW 0 20 24 136 111 39 7 0
VODI 0 5 25 86 208 219 26 0
ODI 0 0 1 24 149 736 831 0
CDI 0 0 0 1 12 160 1832 20
VCDI 0 0 0 1 3 7 766 1564
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 22640 5669 1206 1035 284 45 11 0
OW 0 38 59 174 96 18 5 0
VODI 0 11 29 143 240 228 34 0
ODI 0 4 21 51 173 647 593 0
CDI 0 0 0 5 22 255 2454 199
VCDI 0 0 0 1 2 10 372 1385


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