Validation of sea ice concentration
Bulletin date: 2024-02-15
Model vs. observations, sea ice class contingency tables
Date: 2024-02-09:
| 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 |
11443 |
6861 |
1124 |
547 |
191 |
25 |
6 |
0 |
| OW |
0 |
101 |
144 |
169 |
98 |
54 |
9 |
0 |
| VODI |
0 |
100 |
99 |
158 |
93 |
110 |
27 |
0 |
| ODI |
0 |
72 |
74 |
140 |
118 |
164 |
121 |
36 |
| CDI |
0 |
81 |
94 |
178 |
123 |
299 |
421 |
103 |
| VCDI |
0 |
27 |
128 |
297 |
359 |
999 |
7739 |
5227 |
|
...date precedes bulletin
|
Date: 2024-02-13:
| 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 |
11221 |
6888 |
1229 |
487 |
252 |
126 |
7 |
0 |
| OW |
0 |
95 |
171 |
211 |
121 |
64 |
14 |
0 |
| VODI |
0 |
22 |
131 |
185 |
150 |
139 |
29 |
0 |
| ODI |
0 |
0 |
78 |
124 |
151 |
178 |
80 |
0 |
| CDI |
0 |
0 |
19 |
90 |
192 |
380 |
568 |
8 |
| VCDI |
0 |
0 |
25 |
63 |
183 |
658 |
7466 |
6354 |
|
...date precedes bulletin
|
Date: 2024-02-15:
| 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 |
12143 |
6795 |
665 |
296 |
72 |
27 |
5 |
0 |
| OW |
1 |
240 |
168 |
187 |
68 |
22 |
6 |
0 |
| VODI |
0 |
112 |
212 |
250 |
100 |
62 |
15 |
0 |
| ODI |
0 |
86 |
130 |
177 |
120 |
104 |
72 |
0 |
| CDI |
0 |
45 |
83 |
235 |
150 |
169 |
332 |
0 |
| VCDI |
0 |
23 |
63 |
325 |
342 |
775 |
8465 |
5017 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12143 |
6822 |
701 |
336 |
82 |
32 |
7 |
0 |
| OW |
1 |
220 |
137 |
152 |
67 |
20 |
6 |
0 |
| VODI |
0 |
114 |
210 |
262 |
95 |
64 |
14 |
0 |
| ODI |
0 |
78 |
125 |
189 |
125 |
113 |
79 |
0 |
| CDI |
0 |
42 |
83 |
214 |
132 |
153 |
341 |
0 |
| VCDI |
0 |
25 |
65 |
317 |
351 |
777 |
8448 |
5017 |
|
Date: 2024-02-19:
| 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 |
11350 |
6630 |
825 |
649 |
145 |
44 |
0 |
0 |
| OW |
1 |
78 |
179 |
176 |
126 |
48 |
2 |
0 |
| VODI |
0 |
51 |
115 |
194 |
163 |
111 |
22 |
0 |
| ODI |
0 |
31 |
73 |
189 |
249 |
202 |
73 |
13 |
| CDI |
0 |
4 |
73 |
216 |
323 |
359 |
368 |
67 |
| VCDI |
0 |
0 |
135 |
364 |
543 |
1747 |
8049 |
4172 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11350 |
6594 |
786 |
607 |
116 |
24 |
0 |
0 |
| OW |
1 |
86 |
156 |
174 |
113 |
53 |
1 |
0 |
| VODI |
0 |
69 |
156 |
200 |
177 |
112 |
17 |
0 |
| ODI |
0 |
41 |
101 |
228 |
277 |
216 |
68 |
19 |
| CDI |
0 |
4 |
59 |
201 |
337 |
399 |
416 |
66 |
| VCDI |
0 |
0 |
142 |
378 |
529 |
1707 |
8012 |
4167 |
|
Date: 2024-02-21:
| 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 |
11573 |
6431 |
909 |
418 |
189 |
108 |
5 |
0 |
| OW |
0 |
87 |
145 |
137 |
111 |
92 |
7 |
0 |
| VODI |
0 |
57 |
132 |
122 |
125 |
136 |
26 |
0 |
| ODI |
0 |
28 |
68 |
55 |
123 |
183 |
96 |
6 |
| CDI |
0 |
30 |
83 |
109 |
178 |
346 |
343 |
48 |
| VCDI |
0 |
5 |
150 |
238 |
458 |
1205 |
8078 |
5519 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11573 |
6414 |
869 |
417 |
176 |
77 |
4 |
0 |
| OW |
0 |
95 |
140 |
101 |
100 |
67 |
7 |
0 |
| VODI |
0 |
67 |
154 |
143 |
118 |
173 |
31 |
0 |
| ODI |
0 |
35 |
81 |
83 |
148 |
192 |
74 |
10 |
| CDI |
0 |
27 |
109 |
105 |
182 |
428 |
393 |
55 |
| VCDI |
0 |
0 |
134 |
230 |
460 |
1133 |
8046 |
5508 |
|
Date: 2024-02-23:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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