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: 2017-05-25

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

Model vs. observations, sea ice class contingency tables

Date: 2017-05-19:

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 0 242 156 108 17 1 0 0
OW 0 60 133 225 62 15 1 0
VODI 0 42 194 308 124 15 7 0
ODI 0 30 125 288 227 74 27 0
CDI 0 5 187 772 976 586 296 0
VCDI 0 0 11 390 1216 3876 15999 19071
...date precedes bulletin

Date: 2017-05-21:

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 0 183 163 175 48 2 0 0
OW 0 80 197 213 62 17 1 0
VODI 0 53 211 274 120 29 31 0
ODI 0 27 126 284 195 103 78 0
CDI 0 28 178 768 860 679 567 0
VCDI 0 0 40 410 1347 4331 19111 14875
...date precedes bulletin

Date: 2017-05-23:

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 0 354 660 500 55 2 0 0
OW 0 14 158 267 81 14 2 0
VODI 0 4 63 372 221 32 0 0
ODI 0 0 38 367 476 149 9 0
CDI 0 0 66 539 1355 1491 351 0
VCDI 0 0 8 132 701 3952 19796 13637
...date precedes bulletin

Date: 2017-05-25:

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 0 425 706 348 87 2 0 0
OW 0 52 170 207 84 15 0 0
VODI 0 24 112 342 243 52 1 0
ODI 0 5 70 471 574 181 5 0
CDI 0 0 91 613 1535 1701 476 2
VCDI 0 0 27 230 1700 5646 16580 13089
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 438 708 353 96 4 0 0
OW 0 45 156 216 93 14 0 0
VODI 0 19 131 322 250 61 1 0
ODI 0 4 71 484 561 182 4 0
CDI 0 0 84 600 1535 1733 514 3
VCDI 0 0 26 236 1688 5603 16543 13088

Date: 2017-05-27:

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 0 555 576 334 74 10 0 0
OW 0 114 143 261 133 16 0 0
VODI 0 46 122 391 391 113 1 0
ODI 0 8 108 521 596 189 6 0
CDI 0 9 105 681 1680 2251 680 0
VCDI 0 5 43 208 861 8273 16112 10250
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 577 586 336 88 10 0 0
OW 0 99 122 253 153 13 0 0
VODI 0 41 129 400 380 123 0 0
ODI 0 6 116 512 552 197 8 0
CDI 0 7 97 657 1708 2285 683 0
VCDI 0 7 47 238 854 8224 16108 10250

Date: 2017-05-29:

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 0 661 833 515 78 5 0 0
OW 0 26 176 549 115 15 0 0
VODI 0 1 48 746 634 43 1 0
ODI 0 0 80 390 1163 200 0 0
CDI 0 0 22 424 2100 4051 267 0
VCDI 0 0 0 13 562 6331 15157 10660
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 563 565 416 126 6 0 0
OW 0 86 147 306 192 32 0 0
VODI 0 29 159 441 513 87 1 0
ODI 0 7 140 571 693 172 15 0
CDI 0 3 112 760 2057 2743 690 2
VCDI 0 0 36 143 1071 7605 14719 10658

Date: 2017-05-31:

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 0 718 867 901 86 11 0 0
OW 0 26 137 644 226 17 1 0
VODI 0 16 109 638 758 38 1 0
ODI 0 19 75 354 1089 181 3 0
CDI 0 2 57 488 2418 2714 734 0
VCDI 0 0 0 7 708 5407 15246 11170
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 552 578 621 153 12 0 0
OW 0 109 107 414 221 45 1 0
VODI 0 54 169 551 519 34 4 0
ODI 0 20 206 551 729 139 27 0
CDI 0 46 171 784 2509 2017 1232 2
VCDI 0 0 14 111 1154 6121 14721 11168

Date: 2017-06-02:

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 0 633 866 1066 147 6 0 0
OW 0 56 121 736 383 36 0 0
VODI 0 26 108 659 679 103 7 0
ODI 0 14 63 389 1076 261 14 0
CDI 0 15 76 555 2516 3015 991 0
VCDI 0 0 0 47 493 3519 15808 11382
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 428 660 791 242 29 0 0
OW 0 109 88 434 228 33 1 0
VODI 0 96 182 715 486 54 7 0
ODI 0 45 140 613 666 208 42 0
CDI 0 66 164 777 2966 2813 1460 0
VCDI 0 0 0 122 706 3803 15310 11382


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