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

Validation of sea ice concentration - Full domain

Bulletin date: 2017-08-24

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

Model vs. observations, sea ice class contingency tables

Date: 2017-08-18:

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 121515 19176 185 871 46 0 0 0
OW 1 1381 128 1208 200 0 0 0
VODI 0 195 77 1894 2434 8 0 0
ODI 0 8 9 659 8981 2238 41 0
CDI 0 0 0 46 3543 11838 1483 0
VCDI 0 0 0 4 13 3667 4971 228
...date precedes bulletin

Date: 2017-08-20:

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 121470 19617 163 610 84 2 0 0
OW 0 1511 120 1206 127 0 0 0
VODI 0 449 108 1737 2888 24 0 0
ODI 0 49 15 843 8604 2671 19 0
CDI 0 0 0 126 3447 10208 2856 4
VCDI 0 0 0 3 76 485 4218 3308
...date precedes bulletin

Date: 2017-08-22:

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 122151 19490 184 643 43 1 0 0
OW 147 1547 147 1073 38 0 0 0
VODI 0 160 66 2436 1292 0 0 0
ODI 0 0 1 601 12195 968 1 0
CDI 0 0 0 26 2722 9603 998 0
VCDI 0 0 0 0 13 735 5604 4163
...date precedes bulletin

Date: 2017-08-24:

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 124147 18071 121 483 17 0 0 0
OW 152 1732 149 1022 25 0 0 0
VODI 0 224 103 2519 1580 4 0 0
ODI 0 4 3 823 11468 1365 0 0
CDI 0 0 0 77 2967 9205 508 0
VCDI 0 0 0 3 26 2028 5594 2628
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 124133 18046 146 590 20 0 0 0
OW 166 1697 120 997 36 0 0 0
VODI 0 283 106 2319 1978 8 0 0
ODI 0 5 4 949 10826 1468 0 0
CDI 0 0 0 69 3198 9043 468 0
VCDI 0 0 0 3 25 2083 5634 2628

Date: 2017-08-26:

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 125347 16850 101 443 6 0 0 0
OW 178 1996 151 952 40 0 0 0
VODI 0 401 128 2504 2000 0 0 0
ODI 0 16 4 721 10844 2010 1 0
CDI 0 3 2 159 2589 8664 420 0
VCDI 0 0 0 6 71 4203 5962 276
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 125404 16923 129 540 8 0 0 0
OW 121 1875 121 991 49 0 0 0
VODI 0 450 125 2205 2509 5 0 0
ODI 0 16 9 911 10187 2019 5 0
CDI 0 2 2 132 2713 8668 414 0
VCDI 0 0 0 6 84 4185 5964 276

Date: 2017-08-28:

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 124369 19249 152 527 6 0 0 0
OW 0 1426 189 985 24 0 0 0
VODI 0 87 74 2834 863 0 0 0
ODI 0 0 0 307 14327 729 0 0
CDI 0 0 0 21 1661 9341 217 0
VCDI 0 0 0 0 71 6383 3206 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 124239 18070 130 634 18 0 0 0
OW 130 2016 124 882 89 0 0 0
VODI 0 646 145 2140 2777 19 0 0
ODI 0 30 16 873 10152 1820 0 0
CDI 0 0 0 137 3789 7087 242 0
VCDI 0 0 0 8 127 7527 3181 0

Date: 2017-08-30:

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 125564 18806 103 386 47 0 0 0
OW 0 1356 183 940 55 0 0 0
VODI 0 150 84 2660 1143 0 0 0
ODI 0 1 3 533 12927 1162 0 0
CDI 0 0 0 28 2129 8402 386 0
VCDI 0 0 0 0 95 6810 3095 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 125363 17160 99 501 78 0 0 0
OW 201 2106 109 753 109 0 0 0
VODI 0 916 119 2152 2612 14 0 0
ODI 0 130 44 881 9737 2121 0 0
CDI 0 1 2 255 3733 6572 330 0
VCDI 0 0 0 5 127 7667 3151 0

Date: 2017-09-01:

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 128145 16294 82 397 52 0 0 0
OW 0 1585 155 763 100 0 0 0
VODI 0 327 128 2186 1324 4 0 0
ODI 0 6 3 685 11073 2635 0 0
CDI 0 0 0 41 1878 8556 386 0
VCDI 0 0 0 4 63 7165 3011 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 128061 14665 89 440 96 0 0 0
OW 84 2094 77 714 184 6 0 0
VODI 0 1221 149 1618 2951 42 0 0
ODI 0 212 47 1019 8088 3428 11 0
CDI 0 20 6 277 3026 6376 298 0
VCDI 0 0 0 8 145 8508 3088 0


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