Validation of sea ice concentration - American sector
Bulletin date: 2024-12-05
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2024-12-01:
| 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 |
16765 |
4566 |
84 |
109 |
0 |
0 |
0 |
0 |
| OW |
14 |
689 |
114 |
296 |
56 |
15 |
0 |
0 |
| VODI |
3 |
133 |
59 |
414 |
203 |
141 |
12 |
0 |
| ODI |
0 |
16 |
7 |
161 |
301 |
182 |
73 |
0 |
| CDI |
0 |
6 |
1 |
9 |
229 |
560 |
184 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
217 |
1917 |
7604 |
26084 |
|
...date precedes bulletin
|
Date: 2024-12-03:
| 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 |
15203 |
4891 |
94 |
103 |
6 |
0 |
0 |
0 |
| OW |
5 |
505 |
150 |
673 |
233 |
0 |
0 |
0 |
| VODI |
3 |
59 |
34 |
489 |
309 |
43 |
0 |
0 |
| ODI |
0 |
3 |
2 |
122 |
531 |
146 |
15 |
0 |
| CDI |
0 |
2 |
0 |
14 |
262 |
729 |
144 |
1 |
| VCDI |
0 |
2 |
1 |
6 |
169 |
1802 |
5797 |
28683 |
|
...date precedes bulletin
|
Date: 2024-12-05:
| 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 |
14930 |
3833 |
67 |
87 |
7 |
0 |
0 |
0 |
| OW |
26 |
1050 |
161 |
202 |
90 |
10 |
0 |
0 |
| VODI |
4 |
276 |
131 |
601 |
398 |
336 |
0 |
0 |
| ODI |
0 |
25 |
17 |
224 |
337 |
282 |
5 |
0 |
| CDI |
0 |
1 |
0 |
46 |
369 |
488 |
203 |
7 |
| VCDI |
0 |
0 |
0 |
10 |
147 |
2136 |
8645 |
26080 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14942 |
4153 |
119 |
142 |
12 |
0 |
0 |
0 |
| OW |
15 |
785 |
146 |
283 |
155 |
33 |
0 |
0 |
| VODI |
3 |
231 |
108 |
577 |
384 |
387 |
0 |
0 |
| ODI |
0 |
16 |
3 |
136 |
349 |
344 |
32 |
0 |
| CDI |
0 |
0 |
0 |
24 |
334 |
485 |
247 |
9 |
| VCDI |
0 |
0 |
0 |
8 |
114 |
2003 |
8574 |
26078 |
|
Date: 2024-12-07:
| 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 |
13562 |
4248 |
51 |
64 |
3 |
0 |
0 |
0 |
| OW |
134 |
975 |
118 |
212 |
80 |
0 |
0 |
0 |
| VODI |
3 |
384 |
125 |
452 |
342 |
52 |
0 |
0 |
| ODI |
0 |
64 |
45 |
386 |
587 |
553 |
42 |
0 |
| CDI |
0 |
0 |
0 |
28 |
419 |
614 |
101 |
27 |
| VCDI |
0 |
0 |
0 |
1 |
90 |
1624 |
8534 |
27311 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13620 |
4671 |
109 |
135 |
24 |
0 |
0 |
0 |
| OW |
76 |
619 |
98 |
257 |
121 |
0 |
0 |
0 |
| VODI |
3 |
315 |
88 |
418 |
366 |
66 |
0 |
0 |
| ODI |
0 |
66 |
44 |
314 |
588 |
597 |
18 |
2 |
| CDI |
0 |
0 |
0 |
16 |
333 |
623 |
292 |
46 |
| VCDI |
0 |
0 |
0 |
3 |
89 |
1557 |
8367 |
27290 |
|
Date: 2024-12-09:
| 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 |
13336 |
4172 |
79 |
43 |
1 |
0 |
0 |
0 |
| OW |
139 |
1314 |
137 |
206 |
7 |
0 |
0 |
0 |
| VODI |
12 |
110 |
97 |
706 |
362 |
2 |
0 |
0 |
| ODI |
0 |
4 |
1 |
147 |
829 |
144 |
0 |
0 |
| CDI |
0 |
2 |
0 |
22 |
296 |
832 |
142 |
5 |
| VCDI |
0 |
0 |
0 |
5 |
146 |
1936 |
7756 |
28241 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13327 |
4216 |
111 |
168 |
16 |
0 |
0 |
0 |
| OW |
146 |
740 |
79 |
167 |
69 |
0 |
0 |
0 |
| VODI |
14 |
453 |
64 |
402 |
316 |
67 |
0 |
0 |
| ODI |
0 |
148 |
40 |
248 |
603 |
337 |
124 |
0 |
| CDI |
0 |
45 |
20 |
132 |
431 |
499 |
557 |
11 |
| VCDI |
0 |
0 |
0 |
12 |
206 |
2011 |
7217 |
28235 |
|
Date: 2024-12-11:
| 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 |
14069 |
3644 |
53 |
20 |
47 |
0 |
0 |
0 |
| OW |
218 |
1206 |
86 |
113 |
29 |
0 |
0 |
0 |
| VODI |
42 |
433 |
155 |
481 |
193 |
8 |
0 |
0 |
| ODI |
0 |
31 |
31 |
326 |
415 |
140 |
0 |
0 |
| CDI |
0 |
2 |
2 |
130 |
502 |
629 |
48 |
8 |
| VCDI |
0 |
0 |
0 |
1 |
325 |
2956 |
8431 |
26457 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13909 |
3346 |
74 |
74 |
52 |
0 |
0 |
0 |
| OW |
346 |
730 |
55 |
159 |
48 |
0 |
0 |
0 |
| VODI |
71 |
740 |
73 |
356 |
185 |
27 |
0 |
0 |
| ODI |
3 |
380 |
76 |
273 |
457 |
337 |
9 |
1 |
| CDI |
0 |
120 |
49 |
178 |
398 |
641 |
252 |
43 |
| VCDI |
0 |
0 |
0 |
31 |
371 |
2728 |
8218 |
26421 |
|
Date: 2024-12-13:
| 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 |
14357 |
3530 |
93 |
72 |
0 |
0 |
0 |
0 |
| OW |
226 |
937 |
99 |
204 |
53 |
0 |
0 |
0 |
| VODI |
19 |
374 |
119 |
398 |
190 |
80 |
0 |
0 |
| ODI |
2 |
33 |
29 |
253 |
306 |
111 |
0 |
0 |
| CDI |
1 |
8 |
0 |
71 |
622 |
511 |
18 |
1 |
| VCDI |
0 |
10 |
0 |
9 |
407 |
3779 |
10120 |
24189 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13939 |
2471 |
78 |
71 |
0 |
0 |
0 |
0 |
| OW |
531 |
829 |
47 |
139 |
81 |
0 |
0 |
0 |
| VODI |
128 |
730 |
72 |
225 |
90 |
33 |
0 |
0 |
| ODI |
7 |
525 |
60 |
273 |
301 |
289 |
1 |
0 |
| CDI |
0 |
301 |
78 |
268 |
540 |
739 |
143 |
57 |
| VCDI |
0 |
36 |
5 |
31 |
566 |
3420 |
9994 |
24133 |
|
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