Validation of sea ice concentration - American sector
Bulletin date: 2023-10-12
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
35040 |
5884 |
311 |
435 |
42 |
0 |
0 |
0 |
| OW |
0 |
275 |
193 |
773 |
321 |
12 |
0 |
0 |
| VODI |
0 |
21 |
23 |
375 |
616 |
241 |
0 |
0 |
| ODI |
0 |
7 |
5 |
90 |
459 |
452 |
21 |
0 |
| CDI |
0 |
0 |
0 |
32 |
268 |
1084 |
580 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
59 |
630 |
5674 |
7308 |
|
...date precedes bulletin
|
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 |
34148 |
5543 |
275 |
496 |
48 |
4 |
0 |
0 |
| OW |
0 |
528 |
223 |
658 |
384 |
16 |
0 |
0 |
| VODI |
0 |
14 |
32 |
343 |
922 |
134 |
0 |
0 |
| ODI |
0 |
3 |
2 |
82 |
466 |
518 |
34 |
0 |
| CDI |
0 |
0 |
0 |
16 |
139 |
799 |
435 |
18 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
273 |
5897 |
8781 |
|
...date precedes bulletin
|
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 |
33424 |
5703 |
296 |
350 |
13 |
1 |
0 |
0 |
| OW |
0 |
224 |
94 |
753 |
156 |
2 |
0 |
0 |
| VODI |
0 |
6 |
19 |
483 |
458 |
41 |
0 |
0 |
| ODI |
0 |
0 |
0 |
136 |
670 |
116 |
9 |
0 |
| CDI |
0 |
0 |
0 |
16 |
651 |
1023 |
260 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
14 |
467 |
4939 |
10906 |
|
...date precedes bulletin
|
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 |
33033 |
5289 |
206 |
324 |
25 |
1 |
0 |
0 |
| OW |
0 |
603 |
143 |
593 |
264 |
20 |
0 |
0 |
| VODI |
0 |
50 |
72 |
366 |
509 |
88 |
0 |
0 |
| ODI |
0 |
10 |
13 |
181 |
476 |
227 |
4 |
0 |
| CDI |
0 |
1 |
1 |
59 |
468 |
1154 |
381 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
32 |
691 |
6844 |
9100 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33030 |
5330 |
216 |
451 |
54 |
1 |
0 |
0 |
| OW |
3 |
536 |
124 |
465 |
259 |
19 |
0 |
0 |
| VODI |
0 |
76 |
73 |
368 |
485 |
97 |
0 |
0 |
| ODI |
0 |
10 |
19 |
162 |
506 |
248 |
7 |
0 |
| CDI |
0 |
1 |
3 |
77 |
434 |
1162 |
511 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
36 |
654 |
6711 |
9100 |
|
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 |
32640 |
5152 |
170 |
238 |
24 |
1 |
0 |
0 |
| OW |
1 |
452 |
218 |
636 |
391 |
39 |
0 |
0 |
| VODI |
0 |
65 |
69 |
302 |
599 |
208 |
0 |
0 |
| ODI |
0 |
5 |
12 |
163 |
420 |
295 |
6 |
0 |
| CDI |
0 |
0 |
0 |
70 |
419 |
1086 |
184 |
1 |
| VCDI |
0 |
0 |
0 |
7 |
141 |
1340 |
6325 |
9552 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
32637 |
5238 |
205 |
393 |
137 |
10 |
0 |
0 |
| OW |
4 |
365 |
169 |
393 |
291 |
67 |
0 |
0 |
| VODI |
0 |
66 |
83 |
366 |
561 |
179 |
0 |
0 |
| ODI |
0 |
5 |
11 |
173 |
425 |
288 |
7 |
0 |
| CDI |
0 |
0 |
1 |
81 |
418 |
1160 |
289 |
1 |
| VCDI |
0 |
0 |
0 |
10 |
162 |
1265 |
6219 |
9552 |
|
Date: 2023-10-16:
| 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 |
31332 |
5851 |
237 |
341 |
8 |
0 |
0 |
0 |
| OW |
0 |
435 |
238 |
416 |
60 |
0 |
0 |
0 |
| VODI |
0 |
11 |
30 |
607 |
325 |
25 |
0 |
0 |
| ODI |
0 |
0 |
0 |
105 |
938 |
117 |
1 |
2 |
| CDI |
0 |
0 |
0 |
29 |
401 |
2310 |
60 |
19 |
| VCDI |
0 |
0 |
0 |
2 |
118 |
973 |
7065 |
9175 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
31328 |
5601 |
242 |
502 |
120 |
16 |
1 |
0 |
| OW |
3 |
452 |
101 |
378 |
282 |
75 |
7 |
0 |
| VODI |
1 |
206 |
85 |
288 |
503 |
306 |
26 |
0 |
| ODI |
0 |
35 |
63 |
140 |
308 |
626 |
26 |
0 |
| CDI |
0 |
3 |
14 |
156 |
446 |
1344 |
784 |
0 |
| VCDI |
0 |
0 |
0 |
36 |
191 |
1058 |
6282 |
9196 |
|
Date: 2023-10-18:
| 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 |
30438 |
5935 |
311 |
572 |
130 |
0 |
0 |
0 |
| OW |
0 |
263 |
161 |
549 |
184 |
0 |
0 |
0 |
| VODI |
0 |
18 |
23 |
471 |
414 |
50 |
0 |
0 |
| ODI |
0 |
0 |
0 |
102 |
599 |
315 |
0 |
0 |
| CDI |
0 |
0 |
0 |
28 |
357 |
1799 |
555 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
69 |
883 |
5941 |
11064 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
30425 |
5392 |
243 |
564 |
179 |
10 |
0 |
0 |
| OW |
12 |
440 |
98 |
431 |
356 |
57 |
1 |
0 |
| VODI |
1 |
328 |
65 |
327 |
454 |
196 |
24 |
0 |
| ODI |
0 |
54 |
79 |
182 |
221 |
665 |
46 |
0 |
| CDI |
0 |
2 |
10 |
200 |
338 |
896 |
708 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
205 |
1223 |
5717 |
11064 |
|
Date: 2023-10-20:
| 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 |
29485 |
6031 |
349 |
623 |
134 |
0 |
0 |
0 |
| OW |
1 |
285 |
95 |
472 |
388 |
9 |
0 |
0 |
| VODI |
0 |
49 |
28 |
291 |
614 |
71 |
0 |
0 |
| ODI |
0 |
0 |
6 |
76 |
429 |
328 |
0 |
0 |
| CDI |
0 |
0 |
0 |
54 |
227 |
1870 |
660 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
122 |
1624 |
7196 |
9710 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
29446 |
4967 |
195 |
420 |
172 |
0 |
0 |
0 |
| OW |
33 |
704 |
83 |
196 |
340 |
16 |
0 |
0 |
| VODI |
7 |
495 |
113 |
400 |
486 |
226 |
0 |
0 |
| ODI |
0 |
159 |
47 |
256 |
285 |
436 |
0 |
0 |
| CDI |
0 |
40 |
40 |
212 |
360 |
1179 |
402 |
0 |
| VCDI |
0 |
0 |
0 |
36 |
271 |
2045 |
7454 |
9710 |
|
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