Validation of sea ice concentration - American sector
Bulletin date: 2024-08-29
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-08-23:
| 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 |
33317 |
3291 |
8 |
3 |
0 |
0 |
0 |
0 |
| OW |
295 |
2541 |
214 |
113 |
0 |
0 |
0 |
0 |
| VODI |
56 |
650 |
523 |
3305 |
141 |
0 |
0 |
0 |
| ODI |
24 |
66 |
1 |
401 |
6446 |
786 |
0 |
0 |
| CDI |
11 |
12 |
1 |
20 |
1033 |
4005 |
93 |
0 |
| VCDI |
0 |
44 |
0 |
16 |
72 |
1773 |
1970 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-25:
| 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 |
33366 |
3231 |
14 |
5 |
0 |
0 |
0 |
0 |
| OW |
387 |
2527 |
151 |
153 |
4 |
0 |
0 |
0 |
| VODI |
59 |
1031 |
662 |
2802 |
137 |
21 |
0 |
0 |
| ODI |
32 |
54 |
8 |
629 |
6611 |
1034 |
0 |
0 |
| CDI |
4 |
33 |
3 |
11 |
996 |
3054 |
294 |
0 |
| VCDI |
0 |
19 |
0 |
8 |
64 |
1230 |
2597 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-27:
| 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 |
33661 |
4177 |
8 |
8 |
0 |
0 |
0 |
0 |
| OW |
221 |
3135 |
487 |
232 |
0 |
0 |
0 |
0 |
| VODI |
38 |
118 |
216 |
2769 |
177 |
4 |
0 |
0 |
| ODI |
13 |
8 |
1 |
194 |
5815 |
396 |
2 |
0 |
| CDI |
2 |
35 |
0 |
4 |
806 |
5041 |
159 |
0 |
| VCDI |
0 |
17 |
0 |
1 |
32 |
899 |
2555 |
0 |
|
...date precedes bulletin
|
Date: 2024-08-29:
| 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 |
33790 |
4394 |
8 |
10 |
0 |
0 |
0 |
0 |
| OW |
275 |
3146 |
382 |
213 |
1 |
0 |
0 |
0 |
| VODI |
41 |
165 |
238 |
2668 |
178 |
1 |
0 |
0 |
| ODI |
9 |
15 |
3 |
259 |
5734 |
514 |
0 |
0 |
| CDI |
1 |
16 |
0 |
12 |
872 |
4151 |
571 |
0 |
| VCDI |
0 |
37 |
0 |
7 |
69 |
1053 |
2396 |
2 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33785 |
4499 |
11 |
8 |
0 |
0 |
0 |
0 |
| OW |
274 |
2998 |
374 |
207 |
0 |
0 |
0 |
0 |
| VODI |
51 |
213 |
243 |
2544 |
219 |
1 |
0 |
0 |
| ODI |
5 |
11 |
3 |
389 |
5540 |
647 |
0 |
0 |
| CDI |
1 |
16 |
0 |
13 |
1028 |
4020 |
633 |
0 |
| VCDI |
0 |
36 |
0 |
8 |
67 |
1051 |
2334 |
2 |
|
Date: 2024-08-31:
| 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 |
34249 |
4194 |
10 |
19 |
0 |
0 |
0 |
0 |
| OW |
298 |
3053 |
270 |
196 |
5 |
0 |
0 |
0 |
| VODI |
48 |
251 |
360 |
2434 |
186 |
2 |
0 |
0 |
| ODI |
7 |
2 |
1 |
400 |
6266 |
237 |
0 |
0 |
| CDI |
0 |
32 |
0 |
21 |
1100 |
3929 |
154 |
0 |
| VCDI |
0 |
20 |
0 |
6 |
86 |
1270 |
2125 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
34230 |
4301 |
23 |
16 |
0 |
0 |
0 |
0 |
| OW |
327 |
2854 |
260 |
194 |
2 |
0 |
0 |
0 |
| VODI |
39 |
344 |
357 |
2305 |
224 |
2 |
0 |
0 |
| ODI |
6 |
1 |
1 |
535 |
6057 |
253 |
0 |
0 |
| CDI |
0 |
37 |
0 |
20 |
1264 |
3829 |
191 |
0 |
| VCDI |
0 |
15 |
0 |
6 |
96 |
1354 |
2088 |
0 |
|
Date: 2024-09-02:
| 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 |
34217 |
5629 |
17 |
20 |
0 |
0 |
0 |
0 |
| OW |
190 |
2080 |
551 |
196 |
2 |
0 |
0 |
0 |
| VODI |
6 |
37 |
30 |
2683 |
165 |
4 |
0 |
0 |
| ODI |
1 |
6 |
0 |
191 |
6730 |
286 |
0 |
0 |
| CDI |
0 |
34 |
0 |
9 |
423 |
4557 |
113 |
0 |
| VCDI |
0 |
13 |
0 |
1 |
42 |
562 |
2436 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
34098 |
4297 |
19 |
14 |
0 |
0 |
0 |
0 |
| OW |
294 |
3031 |
184 |
124 |
2 |
1 |
0 |
0 |
| VODI |
21 |
415 |
388 |
2219 |
263 |
4 |
0 |
0 |
| ODI |
1 |
5 |
7 |
726 |
5915 |
452 |
0 |
0 |
| CDI |
0 |
33 |
0 |
17 |
1071 |
4057 |
214 |
0 |
| VCDI |
0 |
18 |
0 |
0 |
111 |
895 |
2335 |
0 |
|
Date: 2024-09-04:
| 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 |
35273 |
4619 |
11 |
29 |
0 |
0 |
0 |
0 |
| OW |
320 |
2095 |
349 |
182 |
31 |
0 |
0 |
0 |
| VODI |
18 |
200 |
189 |
2278 |
347 |
1 |
0 |
0 |
| ODI |
1 |
7 |
5 |
348 |
6502 |
427 |
0 |
0 |
| CDI |
0 |
44 |
1 |
14 |
582 |
4140 |
192 |
0 |
| VCDI |
0 |
11 |
0 |
5 |
29 |
1255 |
1726 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
34993 |
3424 |
11 |
31 |
1 |
0 |
0 |
0 |
| OW |
579 |
2767 |
82 |
78 |
33 |
3 |
0 |
0 |
| VODI |
39 |
714 |
452 |
1903 |
298 |
5 |
0 |
0 |
| ODI |
1 |
15 |
8 |
813 |
5801 |
556 |
3 |
0 |
| CDI |
0 |
26 |
2 |
26 |
1221 |
3832 |
306 |
0 |
| VCDI |
0 |
30 |
0 |
5 |
137 |
1427 |
1609 |
0 |
|
Date: 2024-09-06:
| 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 |
35654 |
4558 |
17 |
23 |
0 |
0 |
0 |
0 |
| OW |
308 |
1995 |
277 |
133 |
101 |
0 |
0 |
0 |
| VODI |
20 |
307 |
211 |
1634 |
639 |
1 |
0 |
0 |
| ODI |
1 |
24 |
5 |
160 |
5138 |
1580 |
0 |
0 |
| CDI |
0 |
38 |
0 |
15 |
479 |
4472 |
304 |
0 |
| VCDI |
0 |
20 |
0 |
10 |
22 |
1934 |
1151 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35202 |
3452 |
15 |
8 |
19 |
0 |
0 |
0 |
| OW |
746 |
2506 |
110 |
53 |
86 |
0 |
0 |
0 |
| VODI |
34 |
894 |
378 |
1534 |
440 |
3 |
0 |
0 |
| ODI |
1 |
29 |
6 |
322 |
4613 |
1114 |
0 |
0 |
| CDI |
0 |
27 |
1 |
45 |
1101 |
4859 |
378 |
0 |
| VCDI |
0 |
34 |
0 |
13 |
120 |
2011 |
1077 |
0 |
|
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