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

Validation of sea ice concentration - GODAE regions

Bulletin date: 2018-02-15

Model: ARC MFC - TOPAZ

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

Model vs. observations, sea ice class contingency tables

Date: 2018-02-19

Best estimate

Forecast

Arctic Deep Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 698 6 9 0 0 0 0
OW 0 63 16 49 9 0 0 0
VODI 0 17 14 90 45 2 0 0
ODI 0 0 0 57 72 13 0 0
CDI 0 0 0 16 162 130 64 0
VCDI 0 0 0 0 69 662 7588 27051
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 660 9 21 3 0 0 0
OW 0 79 9 41 22 0 0 0
VODI 0 33 9 43 49 13 0 0
ODI 0 5 6 44 35 41 0 0
CDI 0 1 3 38 51 59 33 0
VCDI 0 0 0 34 197 694 7619 27051

Queen Elisabeth Islands:

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 0 0 0 0
ODI 0 0 0 0 0 0 0 2
CDI 0 0 0 0 0 0 0 14
VCDI 0 0 0 0 0 138 1007 1972
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 0 0 0 0
ODI 0 0 0 0 0 0 0 3
CDI 0 0 0 0 0 0 0 7
VCDI 0 0 0 0 0 138 1007 1978

Beaufort Sea:

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 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 164 9818
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 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 1 0
VCDI 0 0 0 0 0 0 163 9818

Chuckchi Sea:

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 6 2 7 0 0 0 0
VODI 0 27 6 83 100 1 0 0
ODI 0 12 2 27 136 36 0 0
CDI 0 1 0 19 76 160 12 0
VCDI 0 0 0 2 71 666 3112 1090
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 6 74 0 0 0
VODI 0 3 4 29 60 52 0 0
ODI 0 10 2 38 34 36 0 0
CDI 0 28 3 31 68 77 11 0
VCDI 0 5 1 34 147 698 3113 1090

Siberian Sea:

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 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 8 0 21
VCDI 0 0 0 0 0 58 1241 5918
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 0 0 0 0
ODI 0 0 0 0 0 1 0 0
CDI 0 0 0 0 0 13 0 15
VCDI 0 0 0 0 0 52 1241 5924

Laptev Sea:

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 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 100 5226
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 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 100 5226

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 351 3 9 0 0 0 0
OW 0 27 5 24 0 0 0 0
VODI 0 14 4 40 15 0 0 0
ODI 0 1 0 28 43 18 0 0
CDI 0 0 0 2 83 332 45 5
VCDI 0 0 0 0 46 617 3838 781
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 272 1 3 0 0 0 0
OW 0 49 1 11 0 0 0 0
VODI 0 45 4 18 1 0 0 0
ODI 0 23 5 21 14 14 0 0
CDI 0 4 1 37 29 61 20 8
VCDI 0 0 0 13 143 892 3863 778

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4264 3942 68 335 105 0 0 0
OW 0 53 11 123 206 0 0 0
VODI 0 13 4 74 284 16 0 0
ODI 0 0 1 19 213 113 0 0
CDI 0 0 0 0 117 366 9 0
VCDI 0 0 0 0 42 639 314 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 4264 3908 65 320 107 0 0 0
OW 0 55 11 117 138 0 0 0
VODI 0 30 5 66 245 10 0 0
ODI 0 14 2 23 194 45 0 0
CDI 0 1 1 21 120 177 4 0
VCDI 0 0 0 4 163 902 319 0

Greenland Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6455 3065 6 14 0 0 0 0
OW 0 211 15 48 8 0 0 0
VODI 0 81 7 103 61 0 0 0
ODI 0 0 4 24 99 14 2 0
CDI 0 0 0 0 96 139 26 0
VCDI 0 0 0 0 6 157 1055 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 6455 3112 8 29 2 0 0 0
OW 0 125 4 35 24 0 0 0
VODI 0 88 8 39 36 9 0 0
ODI 0 31 11 50 42 30 2 0
CDI 0 1 1 33 115 108 37 0
VCDI 0 0 0 3 51 163 1044 0

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8786 3269 28 96 52 5 0 0
OW 0 81 28 74 21 3 0 0
VODI 0 1 7 93 78 3 0 0
ODI 0 0 0 8 132 73 1 0
CDI 0 0 0 0 16 92 31 0
VCDI 0 0 0 0 0 9 1 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8786 3320 44 158 70 5 0 0
OW 0 30 13 70 55 3 0 0
VODI 0 1 6 42 111 41 0 0
ODI 0 0 0 1 63 106 25 0
CDI 0 0 0 0 0 26 7 0
VCDI 0 0 0 0 0 4 1 0

Baffin Bay:

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 0 0 0 0
ODI 0 0 0 0 1 0 0 0
CDI 0 0 0 0 10 15 0 0
VCDI 0 0 0 0 47 488 2691 2551
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 0 0 0 0
ODI 0 0 0 0 2 0 0 0
CDI 0 0 0 0 7 0 0 0
VCDI 0 0 0 0 49 503 2691 2551

Hudson Bay:

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 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 62 0 3
VCDI 0 0 0 0 0 704 3827 3991
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 0 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 55 1 5
VCDI 0 0 0 0 0 711 3826 3989

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9324 4314 64 372 242 21 0 0
OW 9 19 27 217 147 57 0 0
VODI 0 0 0 115 269 115 0 0
ODI 0 0 0 10 368 189 16 0
CDI 0 0 0 0 284 574 60 0
VCDI 0 0 0 0 107 2290 919 80
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 9333 4331 87 547 405 90 0 0
OW 0 2 4 124 175 107 0 0
VODI 0 0 0 40 248 142 0 0
ODI 0 0 0 3 249 140 7 0
CDI 0 0 0 0 233 493 35 0
VCDI 0 0 0 0 107 2274 953 80


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