Validation of sea ice concentration - American sector
Bulletin date: 2023-11-02
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-27:
| 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 |
12576 |
6293 |
480 |
808 |
154 |
0 |
0 |
0 |
| OW |
3 |
141 |
88 |
552 |
407 |
31 |
0 |
0 |
| VODI |
0 |
20 |
13 |
216 |
650 |
252 |
0 |
0 |
| ODI |
0 |
0 |
0 |
32 |
389 |
549 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
154 |
1175 |
17 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
3771 |
7341 |
9737 |
|
...date precedes bulletin
|
Date: 2023-10-29:
| 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 |
12336 |
5492 |
375 |
959 |
213 |
43 |
0 |
0 |
| OW |
17 |
273 |
88 |
667 |
377 |
58 |
0 |
0 |
| VODI |
0 |
3 |
2 |
205 |
782 |
247 |
0 |
0 |
| ODI |
0 |
0 |
0 |
26 |
353 |
600 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
177 |
1077 |
80 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
36 |
3464 |
7031 |
10883 |
|
...date precedes bulletin
|
Date: 2023-10-31:
| 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 |
10320 |
5374 |
728 |
1263 |
471 |
117 |
0 |
0 |
| OW |
12 |
94 |
33 |
446 |
464 |
51 |
0 |
0 |
| VODI |
0 |
22 |
20 |
235 |
680 |
147 |
0 |
0 |
| ODI |
0 |
0 |
3 |
78 |
591 |
356 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
482 |
1104 |
67 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
27 |
1978 |
7770 |
12929 |
|
...date precedes bulletin
|
Date: 2023-11-02:
| 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 |
10587 |
4748 |
389 |
767 |
642 |
91 |
7 |
0 |
| OW |
19 |
87 |
98 |
566 |
410 |
162 |
13 |
0 |
| VODI |
0 |
40 |
24 |
219 |
535 |
323 |
22 |
0 |
| ODI |
0 |
4 |
6 |
113 |
411 |
387 |
44 |
0 |
| CDI |
0 |
0 |
0 |
24 |
355 |
595 |
197 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
196 |
1415 |
5707 |
16663 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10592 |
4616 |
391 |
885 |
812 |
172 |
14 |
0 |
| OW |
14 |
217 |
95 |
446 |
302 |
153 |
13 |
0 |
| VODI |
0 |
38 |
24 |
216 |
520 |
296 |
20 |
0 |
| ODI |
0 |
8 |
7 |
109 |
375 |
383 |
52 |
0 |
| CDI |
0 |
0 |
0 |
33 |
352 |
548 |
213 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
188 |
1421 |
5678 |
16663 |
|
Date: 2023-11-04:
| 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 |
8999 |
5298 |
427 |
795 |
302 |
149 |
1 |
0 |
| OW |
18 |
192 |
114 |
428 |
484 |
408 |
26 |
0 |
| VODI |
0 |
36 |
34 |
415 |
443 |
344 |
36 |
0 |
| ODI |
0 |
1 |
4 |
142 |
355 |
452 |
41 |
0 |
| CDI |
0 |
0 |
0 |
46 |
407 |
538 |
179 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
292 |
1687 |
7045 |
15705 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8998 |
5219 |
426 |
906 |
441 |
317 |
17 |
0 |
| OW |
19 |
250 |
102 |
308 |
418 |
344 |
23 |
0 |
| VODI |
0 |
55 |
45 |
439 |
374 |
290 |
32 |
0 |
| ODI |
0 |
3 |
6 |
131 |
332 |
434 |
47 |
0 |
| CDI |
0 |
0 |
0 |
45 |
417 |
483 |
179 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
301 |
1710 |
7030 |
15705 |
|
Date: 2023-11-06:
| 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 |
9395 |
4056 |
519 |
739 |
122 |
32 |
0 |
0 |
| OW |
48 |
110 |
129 |
778 |
131 |
24 |
0 |
0 |
| VODI |
1 |
11 |
4 |
518 |
464 |
58 |
0 |
0 |
| ODI |
0 |
0 |
0 |
71 |
873 |
221 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
237 |
1826 |
71 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
115 |
2141 |
7453 |
15698 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9393 |
3698 |
475 |
1085 |
340 |
113 |
2 |
0 |
| OW |
50 |
328 |
109 |
553 |
270 |
261 |
17 |
0 |
| VODI |
1 |
142 |
61 |
279 |
352 |
552 |
28 |
0 |
| ODI |
0 |
9 |
7 |
130 |
474 |
358 |
53 |
0 |
| CDI |
0 |
0 |
0 |
47 |
281 |
613 |
116 |
0 |
| VCDI |
0 |
0 |
0 |
33 |
225 |
2405 |
7308 |
15698 |
|
Date: 2023-11-08:
| 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 |
9438 |
3034 |
329 |
712 |
212 |
93 |
0 |
0 |
| OW |
67 |
232 |
119 |
702 |
258 |
75 |
0 |
0 |
| VODI |
2 |
108 |
39 |
471 |
576 |
129 |
0 |
0 |
| ODI |
0 |
5 |
2 |
127 |
503 |
133 |
0 |
0 |
| CDI |
0 |
0 |
0 |
29 |
312 |
526 |
43 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
167 |
2617 |
5883 |
18923 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9399 |
2795 |
302 |
820 |
365 |
218 |
0 |
0 |
| OW |
105 |
299 |
122 |
715 |
449 |
83 |
13 |
0 |
| VODI |
3 |
225 |
46 |
285 |
432 |
291 |
131 |
0 |
| ODI |
0 |
52 |
17 |
145 |
303 |
383 |
204 |
0 |
| CDI |
0 |
7 |
1 |
45 |
218 |
488 |
218 |
3 |
| VCDI |
0 |
1 |
1 |
31 |
261 |
2110 |
5360 |
18920 |
|
Date: 2023-11-10:
| 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 |
9014 |
2638 |
279 |
533 |
84 |
42 |
0 |
0 |
| OW |
113 |
322 |
174 |
730 |
212 |
73 |
0 |
0 |
| VODI |
31 |
122 |
90 |
531 |
585 |
130 |
0 |
0 |
| ODI |
5 |
45 |
11 |
276 |
393 |
334 |
0 |
0 |
| CDI |
0 |
0 |
0 |
59 |
344 |
272 |
6 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
235 |
2705 |
5437 |
20038 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9039 |
2463 |
242 |
601 |
137 |
160 |
0 |
0 |
| OW |
102 |
415 |
139 |
593 |
458 |
147 |
0 |
0 |
| VODI |
16 |
153 |
135 |
552 |
531 |
199 |
33 |
0 |
| ODI |
6 |
74 |
32 |
241 |
239 |
303 |
128 |
0 |
| CDI |
0 |
19 |
6 |
113 |
260 |
393 |
244 |
4 |
| VCDI |
0 |
3 |
0 |
32 |
228 |
2354 |
5038 |
20034 |
|
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