Validation of sea ice concentration - American sector
Bulletin date: 2023-07-06
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-06-30:
| 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 |
1493 |
8838 |
542 |
1048 |
173 |
12 |
0 |
0 |
| OW |
0 |
169 |
117 |
672 |
119 |
22 |
0 |
0 |
| VODI |
0 |
13 |
29 |
462 |
307 |
39 |
0 |
0 |
| ODI |
0 |
5 |
0 |
133 |
1110 |
289 |
8 |
0 |
| CDI |
0 |
0 |
0 |
9 |
1322 |
5986 |
189 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
149 |
10225 |
8565 |
3821 |
|
...date precedes bulletin
|
Date: 2023-07-02:
| 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 |
2113 |
8609 |
446 |
1106 |
148 |
6 |
0 |
0 |
| OW |
1 |
184 |
137 |
510 |
141 |
13 |
0 |
0 |
| VODI |
0 |
18 |
24 |
326 |
404 |
51 |
0 |
0 |
| ODI |
0 |
3 |
0 |
116 |
930 |
682 |
3 |
0 |
| CDI |
0 |
0 |
0 |
12 |
884 |
7909 |
346 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1018 |
13363 |
6028 |
335 |
|
...date precedes bulletin
|
Date: 2023-07-04:
| 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 |
4256 |
7244 |
409 |
935 |
126 |
11 |
0 |
0 |
| OW |
90 |
24 |
72 |
381 |
94 |
11 |
0 |
0 |
| VODI |
0 |
3 |
1 |
441 |
298 |
33 |
0 |
0 |
| ODI |
0 |
0 |
0 |
92 |
1955 |
228 |
14 |
0 |
| CDI |
0 |
0 |
0 |
1 |
1675 |
10880 |
268 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
121 |
12472 |
3730 |
1 |
|
...date precedes bulletin
|
Date: 2023-07-06:
| 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 |
5077 |
6987 |
380 |
758 |
132 |
8 |
0 |
0 |
| OW |
11 |
56 |
78 |
383 |
81 |
9 |
0 |
0 |
| VODI |
0 |
8 |
19 |
429 |
400 |
50 |
2 |
0 |
| ODI |
0 |
0 |
0 |
170 |
2038 |
498 |
23 |
0 |
| CDI |
0 |
0 |
0 |
27 |
2604 |
9185 |
787 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2061 |
10098 |
3507 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5063 |
6999 |
383 |
824 |
146 |
10 |
0 |
0 |
| OW |
25 |
45 |
78 |
344 |
79 |
9 |
0 |
0 |
| VODI |
0 |
7 |
16 |
402 |
400 |
70 |
2 |
0 |
| ODI |
0 |
0 |
0 |
176 |
1914 |
455 |
24 |
0 |
| CDI |
0 |
0 |
0 |
21 |
2707 |
9001 |
834 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2070 |
10303 |
3459 |
0 |
|
Date: 2023-07-08:
| 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 |
6620 |
5995 |
393 |
422 |
105 |
20 |
0 |
0 |
| OW |
1 |
69 |
107 |
396 |
65 |
21 |
0 |
0 |
| VODI |
0 |
7 |
20 |
522 |
577 |
78 |
9 |
0 |
| ODI |
0 |
0 |
0 |
174 |
2279 |
594 |
7 |
0 |
| CDI |
0 |
0 |
0 |
67 |
3158 |
8794 |
287 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
133 |
11656 |
3290 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6620 |
5995 |
406 |
487 |
110 |
21 |
0 |
0 |
| OW |
1 |
66 |
92 |
340 |
72 |
24 |
0 |
0 |
| VODI |
0 |
10 |
22 |
517 |
576 |
79 |
5 |
0 |
| ODI |
0 |
0 |
0 |
172 |
2142 |
584 |
11 |
0 |
| CDI |
0 |
0 |
0 |
65 |
3284 |
8780 |
275 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
133 |
11675 |
3302 |
0 |
|
Date: 2023-07-10:
| 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 |
5471 |
7668 |
350 |
315 |
113 |
4 |
0 |
0 |
| OW |
2 |
18 |
80 |
389 |
38 |
6 |
0 |
0 |
| VODI |
0 |
1 |
1 |
697 |
563 |
24 |
0 |
0 |
| ODI |
0 |
0 |
0 |
187 |
4491 |
275 |
2 |
0 |
| CDI |
0 |
0 |
0 |
27 |
4687 |
11746 |
122 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
154 |
6071 |
2364 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5471 |
7539 |
295 |
387 |
131 |
12 |
0 |
0 |
| OW |
2 |
120 |
84 |
325 |
182 |
25 |
0 |
0 |
| VODI |
0 |
28 |
52 |
472 |
877 |
119 |
0 |
0 |
| ODI |
0 |
0 |
0 |
323 |
2339 |
585 |
1 |
0 |
| CDI |
0 |
0 |
0 |
108 |
5759 |
7031 |
113 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
758 |
10354 |
2374 |
0 |
|
Date: 2023-07-12:
| 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 |
6029 |
6464 |
653 |
871 |
136 |
1 |
0 |
0 |
| OW |
2 |
8 |
44 |
483 |
57 |
3 |
0 |
0 |
| VODI |
0 |
0 |
4 |
780 |
971 |
63 |
0 |
0 |
| ODI |
0 |
0 |
0 |
184 |
4541 |
724 |
1 |
0 |
| CDI |
0 |
0 |
0 |
14 |
4114 |
11737 |
445 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
389 |
6040 |
1108 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6029 |
6273 |
557 |
884 |
175 |
6 |
0 |
0 |
| OW |
2 |
147 |
76 |
409 |
210 |
43 |
0 |
0 |
| VODI |
0 |
50 |
56 |
509 |
1121 |
121 |
0 |
0 |
| ODI |
0 |
2 |
10 |
431 |
2513 |
584 |
1 |
0 |
| CDI |
0 |
0 |
2 |
99 |
5556 |
7724 |
178 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
633 |
10090 |
1375 |
0 |
|
Date: 2023-07-14:
| 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 |
7328 |
6173 |
316 |
445 |
121 |
4 |
0 |
0 |
| OW |
0 |
55 |
72 |
597 |
89 |
23 |
0 |
0 |
| VODI |
0 |
16 |
12 |
914 |
1327 |
104 |
0 |
0 |
| ODI |
0 |
0 |
4 |
230 |
4975 |
437 |
12 |
0 |
| CDI |
0 |
0 |
0 |
23 |
5925 |
9710 |
297 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
78 |
5726 |
852 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7327 |
5905 |
229 |
486 |
187 |
43 |
0 |
0 |
| OW |
1 |
252 |
85 |
392 |
272 |
62 |
0 |
0 |
| VODI |
0 |
60 |
69 |
737 |
1236 |
81 |
0 |
0 |
| ODI |
0 |
24 |
20 |
525 |
2543 |
268 |
0 |
0 |
| CDI |
0 |
3 |
1 |
69 |
7589 |
5980 |
255 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
688 |
9570 |
906 |
0 |
|
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