Validation of sea ice concentration - American sector
Bulletin date: 2024-11-21
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-11-15:
| 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 |
22209 |
1868 |
227 |
484 |
77 |
0 |
0 |
0 |
| OW |
114 |
346 |
80 |
617 |
270 |
0 |
0 |
0 |
| VODI |
18 |
116 |
25 |
367 |
368 |
22 |
0 |
0 |
| ODI |
1 |
27 |
14 |
138 |
448 |
122 |
12 |
0 |
| CDI |
0 |
12 |
2 |
27 |
236 |
690 |
117 |
4 |
| VCDI |
0 |
0 |
0 |
5 |
108 |
2200 |
7389 |
22471 |
|
...date precedes bulletin
|
Date: 2024-11-17:
| 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 |
22073 |
1556 |
133 |
458 |
41 |
0 |
0 |
0 |
| OW |
79 |
264 |
70 |
534 |
168 |
0 |
0 |
0 |
| VODI |
18 |
162 |
34 |
400 |
615 |
63 |
0 |
0 |
| ODI |
0 |
39 |
16 |
143 |
456 |
280 |
5 |
0 |
| CDI |
0 |
0 |
1 |
66 |
266 |
694 |
122 |
16 |
| VCDI |
0 |
0 |
0 |
18 |
713 |
2937 |
8305 |
20486 |
|
...date precedes bulletin
|
Date: 2024-11-19:
| 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 |
22088 |
1575 |
84 |
122 |
6 |
0 |
0 |
0 |
| OW |
147 |
373 |
86 |
377 |
66 |
0 |
0 |
0 |
| VODI |
35 |
152 |
80 |
519 |
337 |
4 |
0 |
0 |
| ODI |
3 |
11 |
7 |
212 |
732 |
88 |
0 |
0 |
| CDI |
0 |
1 |
1 |
108 |
510 |
949 |
8 |
0 |
| VCDI |
0 |
0 |
0 |
82 |
852 |
2565 |
8721 |
20330 |
|
...date precedes bulletin
|
Date: 2024-11-21:
| 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 |
22223 |
1477 |
70 |
116 |
11 |
0 |
0 |
0 |
| OW |
82 |
445 |
119 |
336 |
52 |
0 |
0 |
0 |
| VODI |
42 |
217 |
71 |
365 |
258 |
39 |
0 |
0 |
| ODI |
0 |
80 |
22 |
154 |
420 |
323 |
0 |
0 |
| CDI |
0 |
32 |
5 |
75 |
572 |
914 |
11 |
0 |
| VCDI |
0 |
1 |
0 |
21 |
669 |
5028 |
11311 |
15670 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22202 |
1492 |
86 |
135 |
16 |
0 |
0 |
0 |
| OW |
103 |
421 |
89 |
303 |
41 |
0 |
0 |
0 |
| VODI |
42 |
212 |
85 |
340 |
255 |
32 |
0 |
0 |
| ODI |
0 |
88 |
21 |
180 |
449 |
290 |
0 |
0 |
| CDI |
0 |
38 |
5 |
72 |
557 |
892 |
10 |
0 |
| VCDI |
0 |
1 |
1 |
37 |
664 |
5090 |
11312 |
15670 |
|
Date: 2024-11-23:
| 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 |
22130 |
1358 |
47 |
124 |
37 |
0 |
0 |
0 |
| OW |
92 |
346 |
107 |
327 |
195 |
0 |
0 |
0 |
| VODI |
21 |
150 |
61 |
267 |
283 |
87 |
0 |
0 |
| ODI |
4 |
66 |
12 |
170 |
293 |
324 |
0 |
0 |
| CDI |
1 |
16 |
1 |
68 |
388 |
871 |
15 |
0 |
| VCDI |
0 |
3 |
0 |
15 |
209 |
3548 |
10162 |
19433 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22117 |
1409 |
44 |
147 |
84 |
0 |
0 |
0 |
| OW |
97 |
286 |
106 |
260 |
155 |
0 |
0 |
0 |
| VODI |
29 |
146 |
64 |
292 |
259 |
75 |
0 |
0 |
| ODI |
4 |
52 |
12 |
177 |
284 |
307 |
1 |
0 |
| CDI |
1 |
33 |
2 |
71 |
380 |
880 |
42 |
0 |
| VCDI |
0 |
13 |
0 |
24 |
243 |
3568 |
10134 |
19433 |
|
Date: 2024-11-25:
| 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 |
20812 |
2475 |
78 |
62 |
7 |
0 |
0 |
0 |
| OW |
57 |
259 |
116 |
224 |
50 |
0 |
0 |
0 |
| VODI |
16 |
53 |
40 |
510 |
308 |
10 |
0 |
0 |
| ODI |
1 |
2 |
2 |
121 |
513 |
77 |
0 |
0 |
| CDI |
0 |
0 |
0 |
17 |
233 |
989 |
41 |
7 |
| VCDI |
0 |
0 |
0 |
2 |
80 |
2340 |
6399 |
25330 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20779 |
2406 |
80 |
90 |
70 |
0 |
0 |
0 |
| OW |
82 |
268 |
80 |
239 |
157 |
1 |
0 |
0 |
| VODI |
20 |
80 |
57 |
333 |
301 |
101 |
0 |
0 |
| ODI |
4 |
32 |
18 |
158 |
229 |
208 |
31 |
0 |
| CDI |
1 |
3 |
1 |
64 |
271 |
603 |
191 |
4 |
| VCDI |
0 |
0 |
0 |
52 |
163 |
2503 |
6218 |
25333 |
|
Date: 2024-11-27:
| 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 |
19025 |
3363 |
124 |
198 |
23 |
0 |
0 |
0 |
| OW |
178 |
421 |
46 |
147 |
124 |
12 |
0 |
0 |
| VODI |
24 |
128 |
39 |
253 |
266 |
150 |
2 |
0 |
| ODI |
2 |
11 |
4 |
81 |
299 |
287 |
21 |
0 |
| CDI |
1 |
3 |
2 |
23 |
182 |
667 |
99 |
0 |
| VCDI |
0 |
0 |
0 |
37 |
111 |
1536 |
8905 |
24437 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19076 |
3339 |
107 |
172 |
70 |
10 |
0 |
0 |
| OW |
102 |
355 |
42 |
113 |
122 |
57 |
0 |
0 |
| VODI |
35 |
183 |
38 |
242 |
282 |
255 |
25 |
0 |
| ODI |
16 |
33 |
21 |
99 |
213 |
229 |
34 |
0 |
| CDI |
1 |
15 |
5 |
41 |
139 |
570 |
119 |
0 |
| VCDI |
0 |
1 |
2 |
72 |
179 |
1531 |
8849 |
24437 |
|
Date: 2024-11-29:
| 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 |
18163 |
3671 |
112 |
178 |
0 |
0 |
0 |
0 |
| OW |
577 |
184 |
71 |
227 |
89 |
0 |
0 |
0 |
| VODI |
121 |
79 |
43 |
285 |
278 |
61 |
0 |
0 |
| ODI |
15 |
16 |
2 |
92 |
354 |
191 |
3 |
0 |
| CDI |
2 |
11 |
2 |
16 |
319 |
780 |
52 |
3 |
| VCDI |
0 |
2 |
1 |
11 |
221 |
2084 |
7998 |
24917 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17952 |
3587 |
115 |
271 |
70 |
28 |
0 |
0 |
| OW |
564 |
145 |
25 |
110 |
115 |
61 |
0 |
0 |
| VODI |
260 |
173 |
57 |
185 |
281 |
127 |
3 |
0 |
| ODI |
86 |
36 |
28 |
117 |
219 |
212 |
6 |
0 |
| CDI |
16 |
20 |
5 |
110 |
227 |
407 |
106 |
0 |
| VCDI |
0 |
2 |
1 |
16 |
349 |
2281 |
7938 |
24920 |
|
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