Validation of sea ice concentration - American sector
Bulletin date: 2023-10-05
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-30:
| 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 |
38450 |
5309 |
113 |
66 |
7 |
0 |
0 |
0 |
| OW |
18 |
500 |
239 |
408 |
71 |
18 |
0 |
0 |
| VODI |
0 |
16 |
56 |
814 |
246 |
20 |
0 |
0 |
| ODI |
0 |
0 |
2 |
166 |
965 |
92 |
5 |
0 |
| CDI |
0 |
0 |
0 |
8 |
335 |
1111 |
597 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
323 |
4608 |
6655 |
|
...date precedes bulletin
|
Date: 2023-10-02:
| 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 |
38177 |
4852 |
120 |
146 |
2 |
0 |
0 |
0 |
| OW |
22 |
928 |
229 |
392 |
41 |
17 |
0 |
0 |
| VODI |
0 |
96 |
122 |
845 |
324 |
17 |
0 |
0 |
| ODI |
0 |
6 |
3 |
203 |
986 |
81 |
6 |
0 |
| CDI |
0 |
0 |
0 |
12 |
255 |
1327 |
598 |
18 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
358 |
6347 |
4701 |
|
...date precedes bulletin
|
Date: 2023-10-04:
| 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 |
36964 |
5619 |
181 |
202 |
6 |
0 |
0 |
0 |
| OW |
2 |
599 |
271 |
549 |
41 |
0 |
0 |
0 |
| VODI |
0 |
34 |
44 |
728 |
335 |
61 |
0 |
0 |
| ODI |
0 |
2 |
4 |
190 |
603 |
548 |
0 |
0 |
| CDI |
0 |
0 |
0 |
21 |
565 |
1160 |
129 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
1833 |
10166 |
373 |
|
...date precedes bulletin
|
Date: 2023-10-06:
| 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 |
36011 |
5570 |
264 |
330 |
24 |
0 |
0 |
0 |
| OW |
2 |
412 |
212 |
779 |
190 |
0 |
0 |
0 |
| VODI |
0 |
22 |
34 |
396 |
665 |
44 |
0 |
0 |
| ODI |
0 |
8 |
3 |
126 |
466 |
432 |
0 |
0 |
| CDI |
0 |
0 |
0 |
51 |
280 |
1429 |
415 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
77 |
585 |
7281 |
5123 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35995 |
5557 |
286 |
404 |
47 |
0 |
0 |
0 |
| OW |
18 |
425 |
189 |
703 |
222 |
1 |
0 |
0 |
| VODI |
0 |
21 |
34 |
388 |
643 |
63 |
0 |
0 |
| ODI |
0 |
9 |
3 |
127 |
417 |
474 |
0 |
0 |
| CDI |
0 |
0 |
1 |
60 |
333 |
1388 |
429 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
40 |
564 |
7267 |
5123 |
|
Date: 2023-10-08:
| 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 |
34290 |
5818 |
252 |
548 |
98 |
0 |
0 |
0 |
| OW |
0 |
399 |
159 |
783 |
379 |
18 |
0 |
0 |
| VODI |
0 |
35 |
19 |
366 |
789 |
245 |
2 |
0 |
| ODI |
0 |
9 |
11 |
63 |
437 |
449 |
63 |
0 |
| CDI |
0 |
0 |
0 |
30 |
164 |
907 |
594 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
534 |
5706 |
8060 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
34287 |
5780 |
251 |
596 |
150 |
0 |
0 |
0 |
| OW |
3 |
441 |
159 |
774 |
365 |
29 |
0 |
0 |
| VODI |
0 |
32 |
23 |
327 |
772 |
268 |
6 |
0 |
| ODI |
0 |
8 |
7 |
59 |
393 |
463 |
63 |
0 |
| CDI |
0 |
0 |
1 |
34 |
187 |
945 |
576 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
448 |
5720 |
8055 |
|
Date: 2023-10-10:
| 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 |
33758 |
5785 |
245 |
302 |
29 |
1 |
0 |
0 |
| OW |
0 |
267 |
172 |
623 |
85 |
4 |
0 |
0 |
| VODI |
0 |
1 |
15 |
585 |
402 |
2 |
10 |
0 |
| ODI |
0 |
0 |
0 |
132 |
806 |
60 |
41 |
0 |
| CDI |
0 |
0 |
0 |
2 |
458 |
1417 |
206 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
348 |
4621 |
10851 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33751 |
5477 |
229 |
392 |
109 |
4 |
0 |
0 |
| OW |
7 |
559 |
179 |
811 |
423 |
23 |
0 |
0 |
| VODI |
0 |
17 |
16 |
331 |
787 |
359 |
2 |
0 |
| ODI |
0 |
0 |
6 |
90 |
313 |
612 |
93 |
0 |
| CDI |
0 |
0 |
2 |
21 |
148 |
642 |
746 |
31 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
192 |
4037 |
10821 |
|
Date: 2023-10-12:
| 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 |
33136 |
5626 |
213 |
324 |
19 |
1 |
0 |
0 |
| OW |
1 |
375 |
143 |
608 |
273 |
1 |
0 |
0 |
| VODI |
0 |
31 |
48 |
410 |
557 |
35 |
0 |
0 |
| ODI |
0 |
10 |
10 |
151 |
655 |
143 |
0 |
0 |
| CDI |
0 |
1 |
0 |
43 |
444 |
1214 |
211 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
11 |
742 |
4797 |
10996 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33133 |
5032 |
163 |
262 |
31 |
1 |
0 |
0 |
| OW |
4 |
916 |
184 |
659 |
305 |
27 |
0 |
0 |
| VODI |
0 |
72 |
55 |
492 |
959 |
256 |
14 |
0 |
| ODI |
0 |
11 |
5 |
81 |
487 |
702 |
106 |
0 |
| CDI |
0 |
12 |
7 |
42 |
164 |
754 |
674 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
13 |
396 |
4214 |
10996 |
|
Date: 2023-10-14:
| 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 |
32938 |
5064 |
226 |
304 |
23 |
1 |
0 |
0 |
| OW |
0 |
531 |
212 |
665 |
326 |
24 |
0 |
0 |
| VODI |
0 |
54 |
49 |
324 |
574 |
88 |
0 |
0 |
| ODI |
0 |
2 |
9 |
167 |
487 |
219 |
0 |
0 |
| CDI |
0 |
0 |
0 |
63 |
466 |
1105 |
279 |
2 |
| VCDI |
0 |
0 |
0 |
4 |
50 |
1270 |
6035 |
9670 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
32931 |
4414 |
154 |
301 |
74 |
7 |
0 |
0 |
| OW |
7 |
1022 |
208 |
367 |
261 |
52 |
0 |
0 |
| VODI |
0 |
211 |
118 |
662 |
794 |
296 |
1 |
0 |
| ODI |
0 |
4 |
16 |
118 |
533 |
518 |
59 |
0 |
| CDI |
0 |
0 |
0 |
62 |
214 |
847 |
563 |
1 |
| VCDI |
0 |
0 |
0 |
17 |
50 |
987 |
5691 |
9671 |
|
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