Validation of sea ice concentration - American sector
Bulletin date: 2023-06-01
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-05-26:
| 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 |
0 |
491 |
202 |
388 |
19 |
1 |
0 |
0 |
| OW |
0 |
110 |
88 |
443 |
163 |
11 |
0 |
0 |
| VODI |
0 |
65 |
39 |
336 |
568 |
74 |
4 |
0 |
| ODI |
0 |
33 |
22 |
163 |
472 |
285 |
49 |
0 |
| CDI |
0 |
18 |
12 |
231 |
563 |
1292 |
527 |
3 |
| VCDI |
0 |
21 |
9 |
120 |
424 |
3211 |
11649 |
23760 |
|
...date precedes bulletin
|
Date: 2023-05-28:
| 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 |
0 |
617 |
182 |
371 |
51 |
0 |
0 |
0 |
| OW |
0 |
114 |
74 |
476 |
248 |
9 |
0 |
0 |
| VODI |
0 |
90 |
32 |
337 |
618 |
43 |
19 |
0 |
| ODI |
0 |
49 |
37 |
150 |
509 |
195 |
65 |
0 |
| CDI |
0 |
43 |
24 |
272 |
590 |
1477 |
851 |
0 |
| VCDI |
0 |
16 |
16 |
131 |
418 |
1819 |
14867 |
21056 |
|
...date precedes bulletin
|
Date: 2023-05-30:
| 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 |
0 |
668 |
281 |
549 |
77 |
0 |
0 |
0 |
| OW |
0 |
59 |
32 |
573 |
389 |
12 |
0 |
0 |
| VODI |
0 |
18 |
26 |
320 |
848 |
214 |
0 |
0 |
| ODI |
0 |
15 |
11 |
143 |
531 |
676 |
9 |
0 |
| CDI |
0 |
44 |
15 |
185 |
769 |
4147 |
557 |
0 |
| VCDI |
0 |
2 |
1 |
21 |
266 |
1858 |
16898 |
15652 |
|
...date precedes bulletin
|
Date: 2023-06-01:
| 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 |
0 |
911 |
297 |
818 |
142 |
8 |
0 |
0 |
| OW |
0 |
73 |
39 |
467 |
561 |
138 |
5 |
0 |
| VODI |
0 |
44 |
16 |
283 |
499 |
255 |
135 |
0 |
| ODI |
0 |
32 |
10 |
142 |
308 |
533 |
419 |
0 |
| CDI |
0 |
50 |
12 |
136 |
581 |
1865 |
2811 |
0 |
| VCDI |
0 |
1 |
2 |
54 |
399 |
1755 |
14719 |
17346 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
914 |
294 |
940 |
253 |
4 |
0 |
0 |
| OW |
0 |
77 |
43 |
357 |
452 |
125 |
1 |
0 |
| VODI |
0 |
42 |
17 |
285 |
498 |
305 |
130 |
0 |
| ODI |
0 |
28 |
9 |
136 |
330 |
494 |
391 |
0 |
| CDI |
0 |
49 |
12 |
131 |
576 |
1891 |
2911 |
0 |
| VCDI |
0 |
1 |
1 |
51 |
381 |
1735 |
14656 |
17346 |
|
Date: 2023-06-03:
| 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 |
0 |
996 |
325 |
1078 |
387 |
17 |
0 |
0 |
| OW |
0 |
65 |
56 |
401 |
580 |
119 |
0 |
0 |
| VODI |
0 |
48 |
14 |
253 |
582 |
366 |
15 |
0 |
| ODI |
0 |
31 |
6 |
116 |
554 |
897 |
65 |
0 |
| CDI |
0 |
32 |
13 |
131 |
809 |
2838 |
1389 |
5 |
| VCDI |
0 |
8 |
3 |
75 |
381 |
1890 |
15771 |
15550 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1000 |
331 |
1169 |
438 |
13 |
0 |
0 |
| OW |
0 |
61 |
51 |
311 |
477 |
96 |
0 |
0 |
| VODI |
0 |
50 |
13 |
250 |
609 |
361 |
22 |
0 |
| ODI |
0 |
33 |
6 |
120 |
620 |
874 |
76 |
0 |
| CDI |
0 |
30 |
12 |
127 |
763 |
2888 |
1399 |
5 |
| VCDI |
0 |
6 |
4 |
77 |
386 |
1895 |
15743 |
15550 |
|
Date: 2023-06-05:
| 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 |
0 |
1554 |
395 |
847 |
324 |
7 |
0 |
0 |
| OW |
0 |
86 |
59 |
523 |
281 |
34 |
0 |
0 |
| VODI |
0 |
39 |
9 |
346 |
590 |
67 |
0 |
0 |
| ODI |
0 |
31 |
13 |
111 |
882 |
333 |
1 |
0 |
| CDI |
0 |
0 |
3 |
85 |
600 |
3197 |
753 |
1 |
| VCDI |
0 |
0 |
0 |
65 |
276 |
2394 |
19178 |
12782 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1463 |
354 |
1053 |
631 |
90 |
0 |
0 |
| OW |
0 |
112 |
77 |
291 |
336 |
157 |
4 |
0 |
| VODI |
0 |
67 |
25 |
238 |
518 |
524 |
102 |
0 |
| ODI |
0 |
35 |
7 |
138 |
505 |
729 |
743 |
0 |
| CDI |
0 |
27 |
11 |
117 |
461 |
1983 |
1728 |
10 |
| VCDI |
0 |
6 |
5 |
140 |
502 |
2549 |
17355 |
12773 |
|
Date: 2023-06-07:
| 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 |
0 |
1711 |
373 |
1300 |
418 |
0 |
0 |
0 |
| OW |
0 |
62 |
24 |
457 |
314 |
12 |
0 |
0 |
| VODI |
0 |
35 |
5 |
271 |
711 |
72 |
0 |
0 |
| ODI |
0 |
25 |
6 |
121 |
883 |
412 |
6 |
0 |
| CDI |
0 |
17 |
13 |
233 |
1026 |
3423 |
937 |
0 |
| VCDI |
0 |
0 |
0 |
74 |
495 |
1979 |
17572 |
12879 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1579 |
324 |
1321 |
775 |
15 |
0 |
0 |
| OW |
0 |
119 |
54 |
326 |
455 |
99 |
0 |
0 |
| VODI |
0 |
64 |
14 |
331 |
860 |
321 |
35 |
0 |
| ODI |
0 |
25 |
9 |
199 |
788 |
1328 |
114 |
0 |
| CDI |
0 |
40 |
7 |
136 |
454 |
2207 |
1089 |
1 |
| VCDI |
0 |
23 |
13 |
143 |
515 |
1928 |
17277 |
12878 |
|
Date: 2023-06-09:
| 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 |
0 |
2168 |
442 |
1196 |
240 |
0 |
0 |
0 |
| OW |
0 |
73 |
51 |
495 |
394 |
12 |
0 |
0 |
| VODI |
0 |
33 |
14 |
408 |
854 |
95 |
0 |
0 |
| ODI |
0 |
22 |
11 |
154 |
1092 |
260 |
5 |
0 |
| CDI |
0 |
35 |
20 |
88 |
1718 |
2687 |
685 |
28 |
| VCDI |
0 |
3 |
11 |
61 |
431 |
1922 |
16286 |
13872 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2013 |
403 |
1230 |
784 |
17 |
0 |
0 |
| OW |
0 |
158 |
47 |
358 |
638 |
48 |
0 |
0 |
| VODI |
0 |
66 |
36 |
321 |
1094 |
273 |
6 |
0 |
| ODI |
0 |
25 |
18 |
278 |
1204 |
1442 |
45 |
0 |
| CDI |
0 |
48 |
27 |
165 |
572 |
1244 |
869 |
66 |
| VCDI |
0 |
24 |
18 |
50 |
437 |
1952 |
16056 |
13834 |
|
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