Validation of sea ice concentration - American sector
Bulletin date: 2023-11-09
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-03:
| 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 |
25392 |
4072 |
330 |
556 |
39 |
0 |
0 |
0 |
| OW |
1 |
401 |
153 |
516 |
398 |
24 |
0 |
0 |
| VODI |
0 |
48 |
44 |
473 |
674 |
265 |
0 |
0 |
| ODI |
0 |
2 |
3 |
168 |
666 |
280 |
4 |
0 |
| CDI |
0 |
0 |
0 |
53 |
545 |
540 |
41 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
563 |
2146 |
7293 |
15527 |
|
...date precedes bulletin
|
Date: 2023-11-05:
| 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 |
24673 |
3625 |
331 |
535 |
96 |
0 |
0 |
0 |
| OW |
1 |
478 |
131 |
546 |
296 |
2 |
0 |
0 |
| VODI |
3 |
161 |
122 |
508 |
628 |
196 |
0 |
0 |
| ODI |
0 |
14 |
12 |
163 |
531 |
438 |
0 |
0 |
| CDI |
0 |
2 |
7 |
55 |
447 |
939 |
17 |
0 |
| VCDI |
0 |
0 |
4 |
68 |
233 |
2513 |
6764 |
16692 |
|
...date precedes bulletin
|
Date: 2023-11-07:
| 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 |
24661 |
3167 |
323 |
259 |
23 |
0 |
0 |
0 |
| OW |
23 |
320 |
170 |
666 |
70 |
0 |
0 |
0 |
| VODI |
3 |
50 |
41 |
864 |
351 |
6 |
0 |
0 |
| ODI |
0 |
6 |
1 |
263 |
791 |
166 |
0 |
0 |
| CDI |
0 |
1 |
0 |
49 |
543 |
957 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
254 |
3051 |
6046 |
18086 |
|
...date precedes bulletin
|
Date: 2023-11-09:
| 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 |
23923 |
2776 |
218 |
503 |
9 |
0 |
0 |
0 |
| OW |
35 |
258 |
80 |
770 |
210 |
3 |
0 |
0 |
| VODI |
3 |
82 |
26 |
546 |
596 |
6 |
0 |
0 |
| ODI |
0 |
46 |
11 |
187 |
768 |
152 |
0 |
0 |
| CDI |
0 |
4 |
3 |
34 |
479 |
729 |
8 |
0 |
| VCDI |
0 |
0 |
0 |
31 |
259 |
2921 |
5700 |
19855 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23924 |
2772 |
218 |
546 |
54 |
2 |
0 |
0 |
| OW |
34 |
260 |
78 |
751 |
189 |
1 |
0 |
0 |
| VODI |
3 |
76 |
28 |
524 |
618 |
10 |
0 |
0 |
| ODI |
0 |
47 |
8 |
173 |
759 |
161 |
0 |
0 |
| CDI |
0 |
11 |
6 |
42 |
450 |
699 |
5 |
0 |
| VCDI |
0 |
0 |
0 |
35 |
251 |
2938 |
5703 |
19855 |
|
Date: 2023-11-11:
| 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 |
23660 |
2533 |
126 |
139 |
1 |
0 |
0 |
0 |
| OW |
83 |
476 |
183 |
702 |
59 |
0 |
0 |
0 |
| VODI |
8 |
136 |
62 |
681 |
475 |
7 |
0 |
0 |
| ODI |
0 |
27 |
11 |
356 |
597 |
126 |
0 |
0 |
| CDI |
0 |
10 |
1 |
148 |
556 |
394 |
11 |
0 |
| VCDI |
0 |
0 |
0 |
36 |
487 |
3027 |
5735 |
20378 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23663 |
2493 |
132 |
164 |
4 |
0 |
0 |
0 |
| OW |
80 |
490 |
173 |
677 |
119 |
0 |
0 |
0 |
| VODI |
8 |
162 |
64 |
682 |
459 |
11 |
0 |
0 |
| ODI |
0 |
25 |
13 |
337 |
628 |
165 |
0 |
0 |
| CDI |
0 |
12 |
1 |
121 |
495 |
357 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
81 |
470 |
3021 |
5736 |
20378 |
|
Date: 2023-11-13:
| 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 |
23722 |
2470 |
77 |
65 |
0 |
0 |
0 |
0 |
| OW |
89 |
521 |
142 |
311 |
6 |
0 |
0 |
0 |
| VODI |
11 |
76 |
39 |
719 |
432 |
0 |
0 |
0 |
| ODI |
0 |
14 |
1 |
136 |
1312 |
51 |
0 |
0 |
| CDI |
0 |
2 |
1 |
41 |
613 |
998 |
6 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
349 |
4221 |
6273 |
18532 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23697 |
2221 |
83 |
122 |
0 |
0 |
0 |
0 |
| OW |
110 |
477 |
77 |
401 |
186 |
0 |
0 |
0 |
| VODI |
15 |
318 |
55 |
355 |
695 |
4 |
0 |
0 |
| ODI |
0 |
50 |
36 |
194 |
722 |
266 |
0 |
0 |
| CDI |
0 |
15 |
9 |
138 |
561 |
498 |
11 |
0 |
| VCDI |
0 |
2 |
0 |
63 |
548 |
4502 |
6268 |
18532 |
|
Date: 2023-11-15:
| 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 |
23193 |
2686 |
159 |
206 |
27 |
0 |
0 |
0 |
| OW |
44 |
239 |
89 |
452 |
72 |
0 |
0 |
0 |
| VODI |
5 |
64 |
34 |
292 |
609 |
15 |
0 |
0 |
| ODI |
0 |
14 |
12 |
102 |
863 |
220 |
0 |
0 |
| CDI |
0 |
1 |
2 |
59 |
701 |
1148 |
12 |
1 |
| VCDI |
0 |
0 |
0 |
65 |
518 |
3890 |
7029 |
18408 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23163 |
2368 |
55 |
201 |
21 |
0 |
0 |
0 |
| OW |
72 |
390 |
95 |
259 |
164 |
0 |
0 |
0 |
| VODI |
7 |
178 |
108 |
316 |
643 |
109 |
0 |
0 |
| ODI |
0 |
48 |
21 |
208 |
708 |
375 |
0 |
0 |
| CDI |
0 |
18 |
12 |
94 |
712 |
816 |
11 |
3 |
| VCDI |
0 |
2 |
5 |
98 |
542 |
3973 |
7030 |
18406 |
|
Date: 2023-11-17:
| 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 |
22488 |
2712 |
86 |
99 |
70 |
0 |
0 |
0 |
| OW |
153 |
131 |
66 |
284 |
371 |
0 |
0 |
0 |
| VODI |
33 |
54 |
19 |
171 |
659 |
72 |
0 |
0 |
| ODI |
0 |
14 |
14 |
68 |
667 |
241 |
0 |
0 |
| CDI |
0 |
9 |
7 |
74 |
598 |
1302 |
97 |
4 |
| VCDI |
0 |
0 |
0 |
145 |
351 |
3515 |
6675 |
19982 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22412 |
2433 |
72 |
158 |
118 |
7 |
0 |
0 |
| OW |
225 |
306 |
38 |
139 |
189 |
18 |
0 |
0 |
| VODI |
35 |
111 |
42 |
211 |
731 |
85 |
3 |
0 |
| ODI |
2 |
40 |
19 |
78 |
744 |
441 |
52 |
0 |
| CDI |
0 |
23 |
14 |
83 |
571 |
1182 |
27 |
5 |
| VCDI |
0 |
7 |
7 |
172 |
363 |
3397 |
6690 |
19981 |
|
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