Validation of sea ice concentration - American sector
Bulletin date: 2021-07-29
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-07-23:
| 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 |
9207 |
5186 |
86 |
368 |
161 |
4 |
0 |
0 |
| OW |
0 |
242 |
56 |
402 |
220 |
0 |
0 |
0 |
| VODI |
0 |
52 |
11 |
416 |
1331 |
13 |
0 |
0 |
| ODI |
0 |
0 |
0 |
79 |
3836 |
1547 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
1027 |
7271 |
152 |
0 |
| VCDI |
0 |
0 |
0 |
40 |
279 |
8306 |
5522 |
49 |
|
...date precedes bulletin
|
Date: 2021-07-25:
| 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 |
9672 |
5028 |
88 |
414 |
83 |
0 |
0 |
0 |
| OW |
0 |
277 |
54 |
431 |
204 |
0 |
0 |
0 |
| VODI |
0 |
39 |
16 |
511 |
1563 |
7 |
0 |
0 |
| ODI |
0 |
0 |
0 |
90 |
3961 |
1470 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
1138 |
6581 |
40 |
0 |
| VCDI |
0 |
0 |
0 |
58 |
390 |
5873 |
6826 |
1037 |
|
...date precedes bulletin
|
Date: 2021-07-27:
| 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 |
10382 |
4717 |
61 |
364 |
54 |
0 |
0 |
0 |
| OW |
4 |
200 |
57 |
407 |
76 |
0 |
0 |
0 |
| VODI |
0 |
34 |
21 |
804 |
546 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
168 |
4586 |
652 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
1388 |
7805 |
400 |
0 |
| VCDI |
0 |
0 |
0 |
56 |
433 |
5621 |
7010 |
7 |
|
...date precedes bulletin
|
Date: 2021-07-29:
| 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 |
10495 |
4871 |
70 |
316 |
79 |
0 |
0 |
0 |
| OW |
1 |
345 |
37 |
324 |
100 |
0 |
0 |
0 |
| VODI |
0 |
144 |
40 |
711 |
727 |
2 |
0 |
0 |
| ODI |
0 |
3 |
1 |
92 |
3534 |
1944 |
1 |
0 |
| CDI |
0 |
2 |
0 |
11 |
819 |
7467 |
1313 |
0 |
| VCDI |
0 |
0 |
0 |
59 |
273 |
5036 |
5679 |
1370 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10494 |
4918 |
73 |
369 |
86 |
0 |
0 |
0 |
| OW |
2 |
332 |
41 |
334 |
163 |
0 |
0 |
0 |
| VODI |
0 |
108 |
31 |
614 |
774 |
2 |
0 |
0 |
| ODI |
0 |
5 |
3 |
121 |
3417 |
1932 |
1 |
0 |
| CDI |
0 |
1 |
0 |
10 |
821 |
7295 |
1299 |
0 |
| VCDI |
0 |
1 |
0 |
65 |
271 |
5220 |
5693 |
1370 |
|
Date: 2021-07-31:
| 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 |
9818 |
5821 |
50 |
327 |
35 |
0 |
0 |
0 |
| OW |
0 |
407 |
51 |
396 |
94 |
0 |
0 |
0 |
| VODI |
0 |
205 |
37 |
904 |
630 |
2 |
0 |
0 |
| ODI |
0 |
7 |
4 |
192 |
4521 |
1177 |
0 |
0 |
| CDI |
0 |
0 |
0 |
32 |
1268 |
7764 |
1239 |
2 |
| VCDI |
0 |
1 |
1 |
42 |
253 |
3948 |
6544 |
94 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9818 |
5906 |
58 |
405 |
51 |
0 |
0 |
0 |
| OW |
0 |
360 |
42 |
408 |
157 |
0 |
0 |
0 |
| VODI |
0 |
173 |
37 |
782 |
736 |
0 |
0 |
0 |
| ODI |
0 |
1 |
5 |
217 |
4308 |
1018 |
0 |
0 |
| CDI |
0 |
0 |
0 |
36 |
1288 |
7843 |
1247 |
5 |
| VCDI |
0 |
1 |
1 |
45 |
261 |
4030 |
6536 |
91 |
|
Date: 2021-08-02:
| 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 |
10325 |
5890 |
67 |
296 |
15 |
0 |
0 |
0 |
| OW |
0 |
324 |
55 |
487 |
38 |
0 |
0 |
0 |
| VODI |
0 |
54 |
32 |
1198 |
289 |
6 |
0 |
0 |
| ODI |
0 |
5 |
5 |
89 |
5067 |
416 |
0 |
0 |
| CDI |
0 |
9 |
3 |
52 |
1046 |
7807 |
985 |
0 |
| VCDI |
0 |
0 |
1 |
7 |
396 |
2362 |
6778 |
1762 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10325 |
5547 |
70 |
486 |
57 |
0 |
0 |
0 |
| OW |
0 |
485 |
44 |
455 |
114 |
0 |
0 |
0 |
| VODI |
0 |
227 |
32 |
870 |
611 |
5 |
0 |
0 |
| ODI |
0 |
9 |
8 |
246 |
4115 |
1263 |
15 |
0 |
| CDI |
0 |
13 |
8 |
45 |
1509 |
6951 |
2026 |
113 |
| VCDI |
0 |
1 |
1 |
27 |
445 |
2372 |
5722 |
1649 |
|
Date: 2021-08-04:
| 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 |
10567 |
6033 |
90 |
348 |
11 |
0 |
0 |
0 |
| OW |
0 |
366 |
62 |
543 |
53 |
0 |
0 |
0 |
| VODI |
0 |
32 |
24 |
773 |
564 |
57 |
0 |
0 |
| ODI |
0 |
7 |
1 |
77 |
3735 |
2021 |
0 |
0 |
| CDI |
0 |
24 |
2 |
4 |
538 |
7546 |
890 |
341 |
| VCDI |
0 |
10 |
5 |
39 |
376 |
2412 |
6783 |
1532 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10567 |
5394 |
86 |
508 |
48 |
0 |
0 |
0 |
| OW |
0 |
639 |
40 |
378 |
84 |
0 |
0 |
0 |
| VODI |
0 |
372 |
44 |
595 |
942 |
131 |
0 |
0 |
| ODI |
0 |
27 |
7 |
237 |
3207 |
2106 |
3 |
1 |
| CDI |
0 |
13 |
0 |
27 |
597 |
7647 |
2170 |
949 |
| VCDI |
0 |
27 |
7 |
39 |
399 |
2152 |
5500 |
923 |
|
Date: 2021-08-06:
| 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 |
11352 |
5500 |
78 |
321 |
6 |
0 |
0 |
0 |
| OW |
0 |
425 |
42 |
573 |
34 |
0 |
0 |
0 |
| VODI |
0 |
88 |
22 |
594 |
854 |
16 |
0 |
0 |
| ODI |
0 |
7 |
4 |
127 |
4755 |
1013 |
0 |
0 |
| CDI |
0 |
35 |
1 |
9 |
1612 |
6640 |
649 |
0 |
| VCDI |
0 |
9 |
7 |
39 |
230 |
4610 |
6109 |
105 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11352 |
5076 |
82 |
573 |
41 |
0 |
0 |
0 |
| OW |
0 |
611 |
35 |
428 |
90 |
0 |
0 |
0 |
| VODI |
0 |
302 |
18 |
438 |
1438 |
123 |
0 |
0 |
| ODI |
0 |
28 |
11 |
133 |
3731 |
1244 |
27 |
0 |
| CDI |
0 |
8 |
0 |
23 |
1930 |
7289 |
2208 |
5 |
| VCDI |
0 |
39 |
8 |
68 |
261 |
3623 |
4523 |
100 |
|
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