Validation of sea ice concentration - American sector
Bulletin date: 2023-07-13
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-07:
| 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 |
3940 |
8601 |
315 |
414 |
133 |
40 |
1 |
0 |
| OW |
0 |
201 |
126 |
201 |
100 |
14 |
5 |
0 |
| VODI |
0 |
78 |
76 |
314 |
446 |
94 |
17 |
0 |
| ODI |
0 |
1 |
14 |
261 |
1866 |
737 |
48 |
0 |
| CDI |
0 |
0 |
0 |
128 |
2549 |
9226 |
423 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
587 |
11779 |
3125 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-09:
| 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 |
4672 |
8203 |
280 |
373 |
119 |
47 |
0 |
0 |
| OW |
1 |
286 |
96 |
188 |
103 |
25 |
0 |
0 |
| VODI |
0 |
116 |
94 |
380 |
659 |
122 |
15 |
0 |
| ODI |
0 |
8 |
25 |
381 |
2091 |
642 |
40 |
0 |
| CDI |
0 |
0 |
4 |
156 |
5451 |
6549 |
264 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
854 |
11761 |
1856 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-11:
| 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 |
3276 |
10039 |
277 |
308 |
119 |
36 |
0 |
0 |
| OW |
1 |
143 |
126 |
216 |
65 |
12 |
0 |
0 |
| VODI |
0 |
52 |
98 |
659 |
585 |
88 |
5 |
0 |
| ODI |
0 |
9 |
16 |
369 |
3985 |
900 |
26 |
0 |
| CDI |
0 |
6 |
11 |
47 |
5083 |
10797 |
390 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
570 |
6059 |
1489 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-13:
| 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 |
6195 |
7305 |
278 |
323 |
167 |
2 |
0 |
0 |
| OW |
1 |
147 |
136 |
316 |
91 |
10 |
0 |
0 |
| VODI |
0 |
103 |
102 |
759 |
998 |
111 |
10 |
0 |
| ODI |
0 |
24 |
50 |
377 |
4499 |
604 |
43 |
0 |
| CDI |
0 |
22 |
13 |
40 |
5525 |
10493 |
174 |
0 |
| VCDI |
0 |
4 |
0 |
2 |
438 |
5861 |
643 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6195 |
7302 |
279 |
348 |
168 |
2 |
0 |
0 |
| OW |
1 |
158 |
121 |
280 |
117 |
15 |
0 |
0 |
| VODI |
0 |
93 |
115 |
725 |
920 |
117 |
11 |
0 |
| ODI |
0 |
27 |
54 |
423 |
4199 |
542 |
45 |
0 |
| CDI |
0 |
21 |
10 |
39 |
5860 |
10495 |
204 |
0 |
| VCDI |
0 |
4 |
0 |
2 |
454 |
5910 |
610 |
0 |
|
Date: 2023-07-15:
| 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 |
7182 |
6560 |
270 |
341 |
131 |
24 |
0 |
0 |
| OW |
0 |
221 |
163 |
425 |
174 |
19 |
0 |
0 |
| VODI |
0 |
128 |
106 |
737 |
1453 |
151 |
10 |
0 |
| ODI |
0 |
23 |
52 |
333 |
4714 |
515 |
46 |
0 |
| CDI |
0 |
13 |
6 |
38 |
7931 |
7052 |
562 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
1013 |
4887 |
581 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7182 |
6544 |
281 |
374 |
128 |
23 |
0 |
0 |
| OW |
0 |
247 |
140 |
364 |
205 |
23 |
1 |
0 |
| VODI |
0 |
114 |
120 |
703 |
1399 |
128 |
18 |
0 |
| ODI |
0 |
31 |
50 |
392 |
4249 |
515 |
49 |
0 |
| CDI |
0 |
9 |
6 |
41 |
8426 |
7097 |
570 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
1009 |
4862 |
561 |
0 |
|
Date: 2023-07-17:
| 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 |
7082 |
6981 |
255 |
302 |
73 |
42 |
0 |
0 |
| OW |
0 |
271 |
185 |
292 |
48 |
14 |
0 |
0 |
| VODI |
0 |
110 |
173 |
906 |
746 |
49 |
4 |
0 |
| ODI |
0 |
7 |
7 |
360 |
8964 |
1142 |
19 |
0 |
| CDI |
0 |
2 |
0 |
3 |
3714 |
9319 |
236 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
5 |
4163 |
388 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7082 |
6861 |
286 |
409 |
96 |
48 |
0 |
0 |
| OW |
0 |
336 |
144 |
420 |
342 |
37 |
4 |
0 |
| VODI |
0 |
142 |
147 |
667 |
1868 |
137 |
17 |
0 |
| ODI |
0 |
30 |
43 |
301 |
4124 |
1165 |
31 |
0 |
| CDI |
0 |
2 |
0 |
65 |
7056 |
7540 |
258 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
64 |
5802 |
337 |
0 |
|
Date: 2023-07-19:
| 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 |
7572 |
6792 |
353 |
392 |
83 |
32 |
0 |
0 |
| OW |
0 |
284 |
186 |
412 |
135 |
14 |
0 |
0 |
| VODI |
0 |
117 |
148 |
1041 |
1269 |
73 |
2 |
0 |
| ODI |
0 |
2 |
9 |
660 |
8679 |
675 |
15 |
0 |
| CDI |
0 |
2 |
0 |
36 |
3442 |
9012 |
278 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
13 |
3538 |
596 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7572 |
6607 |
364 |
578 |
158 |
38 |
0 |
0 |
| OW |
0 |
370 |
159 |
599 |
416 |
39 |
0 |
0 |
| VODI |
0 |
179 |
133 |
764 |
1957 |
144 |
4 |
0 |
| ODI |
0 |
39 |
40 |
411 |
4631 |
607 |
39 |
0 |
| CDI |
0 |
2 |
0 |
189 |
6409 |
7463 |
263 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
50 |
5053 |
585 |
0 |
|
Date: 2023-07-21:
| 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 |
8863 |
5904 |
330 |
391 |
90 |
32 |
0 |
0 |
| OW |
0 |
318 |
211 |
616 |
216 |
17 |
0 |
0 |
| VODI |
0 |
98 |
117 |
1569 |
1487 |
63 |
4 |
0 |
| ODI |
0 |
2 |
13 |
1036 |
7885 |
482 |
17 |
0 |
| CDI |
0 |
2 |
0 |
47 |
4341 |
8079 |
127 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
60 |
3400 |
45 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8863 |
5686 |
361 |
856 |
214 |
40 |
0 |
0 |
| OW |
0 |
418 |
147 |
733 |
428 |
36 |
0 |
0 |
| VODI |
0 |
191 |
129 |
886 |
1780 |
182 |
3 |
0 |
| ODI |
0 |
27 |
34 |
802 |
4892 |
306 |
19 |
0 |
| CDI |
0 |
2 |
0 |
380 |
6572 |
6205 |
72 |
0 |
| VCDI |
0 |
4 |
0 |
2 |
193 |
5304 |
99 |
0 |
|
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