Validation of sea ice concentration
Bulletin date: 2022-06-09
Model vs. observations, sea ice class contingency tables
Date: 2022-06-03:
| 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 |
14804 |
5455 |
1790 |
871 |
379 |
108 |
50 |
2 |
| OW |
0 |
6 |
91 |
298 |
232 |
132 |
58 |
1 |
| VODI |
0 |
1 |
58 |
242 |
299 |
294 |
181 |
1 |
| ODI |
0 |
0 |
19 |
118 |
248 |
427 |
455 |
0 |
| CDI |
0 |
0 |
23 |
110 |
339 |
803 |
2806 |
0 |
| VCDI |
0 |
0 |
5 |
34 |
52 |
160 |
3729 |
3478 |
|
...date precedes bulletin
|
Date: 2022-06-07:
| 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 |
15286 |
6300 |
1530 |
880 |
170 |
56 |
59 |
0 |
| OW |
0 |
37 |
144 |
298 |
155 |
59 |
45 |
0 |
| VODI |
0 |
7 |
86 |
359 |
257 |
187 |
140 |
0 |
| ODI |
0 |
6 |
29 |
234 |
305 |
495 |
490 |
0 |
| CDI |
0 |
3 |
35 |
191 |
274 |
924 |
2292 |
0 |
| VCDI |
0 |
0 |
14 |
36 |
70 |
233 |
3182 |
3291 |
|
...date precedes bulletin
|
Date: 2022-06-09:
| 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 |
15254 |
6385 |
1856 |
491 |
391 |
100 |
64 |
0 |
| OW |
0 |
38 |
150 |
189 |
232 |
139 |
51 |
0 |
| VODI |
0 |
2 |
104 |
194 |
308 |
279 |
219 |
0 |
| ODI |
0 |
3 |
89 |
150 |
268 |
407 |
655 |
0 |
| CDI |
0 |
1 |
77 |
137 |
229 |
681 |
2464 |
0 |
| VCDI |
0 |
0 |
13 |
29 |
54 |
164 |
2944 |
3348 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15254 |
6388 |
1879 |
504 |
428 |
118 |
64 |
0 |
| OW |
0 |
33 |
135 |
163 |
173 |
102 |
47 |
0 |
| VODI |
0 |
4 |
94 |
211 |
320 |
280 |
206 |
0 |
| ODI |
0 |
3 |
96 |
139 |
267 |
381 |
575 |
0 |
| CDI |
0 |
1 |
72 |
148 |
240 |
732 |
2605 |
0 |
| VCDI |
0 |
0 |
13 |
25 |
54 |
157 |
2900 |
3348 |
|
Date: 2022-06-13:
| 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 |
15898 |
6697 |
1168 |
768 |
306 |
128 |
69 |
0 |
| OW |
0 |
18 |
127 |
259 |
218 |
155 |
50 |
0 |
| VODI |
0 |
5 |
81 |
228 |
393 |
411 |
177 |
0 |
| ODI |
0 |
0 |
41 |
97 |
266 |
945 |
792 |
0 |
| CDI |
0 |
0 |
18 |
98 |
190 |
609 |
1452 |
0 |
| VCDI |
0 |
0 |
2 |
8 |
26 |
104 |
2861 |
3494 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15898 |
6689 |
1163 |
819 |
369 |
232 |
91 |
0 |
| OW |
0 |
22 |
104 |
188 |
201 |
183 |
54 |
0 |
| VODI |
0 |
9 |
83 |
171 |
264 |
347 |
211 |
0 |
| ODI |
0 |
0 |
54 |
153 |
267 |
535 |
534 |
0 |
| CDI |
0 |
0 |
31 |
115 |
262 |
944 |
2066 |
0 |
| VCDI |
0 |
0 |
2 |
12 |
36 |
111 |
2445 |
3494 |
|
Date: 2022-06-15:
| 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 |
16224 |
6476 |
1525 |
696 |
376 |
141 |
75 |
0 |
| OW |
0 |
36 |
103 |
210 |
332 |
173 |
58 |
0 |
| VODI |
0 |
10 |
89 |
137 |
402 |
427 |
233 |
0 |
| ODI |
0 |
0 |
39 |
59 |
158 |
750 |
719 |
0 |
| CDI |
0 |
0 |
36 |
110 |
179 |
535 |
1337 |
0 |
| VCDI |
0 |
0 |
2 |
20 |
18 |
89 |
2860 |
3525 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16224 |
6470 |
1509 |
668 |
439 |
225 |
92 |
0 |
| OW |
0 |
43 |
102 |
138 |
247 |
153 |
63 |
0 |
| VODI |
0 |
9 |
94 |
160 |
242 |
364 |
245 |
0 |
| ODI |
0 |
0 |
50 |
133 |
280 |
472 |
485 |
0 |
| CDI |
0 |
0 |
37 |
113 |
229 |
809 |
2255 |
11 |
| VCDI |
0 |
0 |
2 |
20 |
28 |
92 |
2142 |
3514 |
|
Date: 2022-06-17:
| 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 |
16519 |
6543 |
1358 |
829 |
382 |
141 |
78 |
0 |
| OW |
0 |
28 |
76 |
242 |
320 |
216 |
84 |
0 |
| VODI |
0 |
13 |
54 |
135 |
371 |
561 |
255 |
0 |
| ODI |
0 |
3 |
33 |
65 |
198 |
513 |
664 |
0 |
| CDI |
0 |
1 |
40 |
84 |
149 |
494 |
1294 |
1 |
| VCDI |
0 |
0 |
3 |
24 |
13 |
29 |
2394 |
3952 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16519 |
6525 |
1285 |
785 |
447 |
229 |
111 |
0 |
| OW |
0 |
44 |
83 |
143 |
171 |
176 |
113 |
0 |
| VODI |
0 |
15 |
95 |
163 |
250 |
394 |
244 |
0 |
| ODI |
0 |
4 |
56 |
176 |
349 |
427 |
418 |
0 |
| CDI |
0 |
0 |
42 |
98 |
208 |
706 |
2349 |
22 |
| VCDI |
0 |
0 |
3 |
14 |
8 |
22 |
1534 |
3931 |
|
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