Validation of sea ice concentration - American sector
Bulletin date: 2023-11-16
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-10:
| 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 |
9869 |
2366 |
89 |
49 |
0 |
0 |
0 |
0 |
| OW |
74 |
625 |
242 |
322 |
81 |
2 |
0 |
0 |
| VODI |
1 |
253 |
153 |
434 |
333 |
48 |
0 |
0 |
| ODI |
0 |
79 |
84 |
307 |
404 |
185 |
0 |
0 |
| CDI |
0 |
37 |
16 |
100 |
346 |
587 |
13 |
0 |
| VCDI |
0 |
4 |
14 |
34 |
327 |
2775 |
6476 |
19137 |
|
...date precedes bulletin
|
Date: 2023-11-12:
| 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 |
9379 |
2275 |
37 |
19 |
0 |
0 |
0 |
0 |
| OW |
54 |
619 |
127 |
233 |
192 |
0 |
0 |
0 |
| VODI |
2 |
276 |
95 |
439 |
466 |
21 |
0 |
0 |
| ODI |
0 |
86 |
40 |
272 |
545 |
165 |
0 |
0 |
| CDI |
0 |
45 |
29 |
137 |
431 |
582 |
11 |
0 |
| VCDI |
0 |
15 |
15 |
88 |
351 |
2794 |
6926 |
19100 |
|
...date precedes bulletin
|
Date: 2023-11-14:
| 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 |
9337 |
2449 |
42 |
25 |
2 |
0 |
0 |
0 |
| OW |
68 |
547 |
107 |
152 |
38 |
0 |
0 |
0 |
| VODI |
7 |
140 |
96 |
431 |
419 |
33 |
0 |
0 |
| ODI |
0 |
20 |
17 |
230 |
758 |
287 |
0 |
0 |
| CDI |
0 |
2 |
8 |
66 |
562 |
800 |
55 |
0 |
| VCDI |
0 |
1 |
7 |
58 |
432 |
4594 |
10940 |
13136 |
|
...date precedes bulletin
|
Date: 2023-11-16:
| 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 |
8496 |
2670 |
90 |
108 |
76 |
0 |
0 |
0 |
| OW |
64 |
193 |
65 |
356 |
192 |
10 |
0 |
0 |
| VODI |
0 |
70 |
38 |
210 |
449 |
77 |
11 |
0 |
| ODI |
0 |
20 |
13 |
92 |
625 |
343 |
1 |
0 |
| CDI |
0 |
3 |
7 |
47 |
496 |
1187 |
112 |
1 |
| VCDI |
0 |
3 |
6 |
76 |
519 |
3140 |
8861 |
17139 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8507 |
2683 |
71 |
126 |
117 |
0 |
0 |
0 |
| OW |
53 |
183 |
85 |
339 |
150 |
2 |
0 |
0 |
| VODI |
0 |
63 |
37 |
206 |
427 |
97 |
10 |
0 |
| ODI |
0 |
25 |
12 |
87 |
624 |
352 |
27 |
0 |
| CDI |
0 |
2 |
8 |
56 |
503 |
1184 |
110 |
3 |
| VCDI |
0 |
3 |
6 |
75 |
536 |
3122 |
8838 |
17137 |
|
Date: 2023-11-18:
| 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 |
7428 |
3198 |
35 |
25 |
35 |
8 |
0 |
0 |
| OW |
45 |
376 |
80 |
129 |
180 |
40 |
0 |
0 |
| VODI |
2 |
93 |
37 |
188 |
476 |
233 |
40 |
0 |
| ODI |
0 |
23 |
7 |
83 |
459 |
323 |
48 |
0 |
| CDI |
0 |
25 |
10 |
55 |
524 |
787 |
198 |
0 |
| VCDI |
0 |
28 |
16 |
91 |
371 |
2429 |
8843 |
18898 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7442 |
3235 |
43 |
39 |
35 |
1 |
0 |
0 |
| OW |
33 |
351 |
78 |
113 |
170 |
53 |
0 |
0 |
| VODI |
0 |
80 |
29 |
193 |
471 |
227 |
21 |
0 |
| ODI |
0 |
26 |
10 |
85 |
493 |
289 |
80 |
0 |
| CDI |
0 |
19 |
10 |
48 |
506 |
769 |
222 |
0 |
| VCDI |
0 |
32 |
15 |
93 |
370 |
2481 |
8806 |
18898 |
|
Date: 2023-11-20:
| 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 |
7249 |
3127 |
16 |
6 |
0 |
0 |
0 |
0 |
| OW |
61 |
506 |
45 |
33 |
16 |
11 |
0 |
0 |
| VODI |
1 |
143 |
82 |
270 |
142 |
36 |
0 |
0 |
| ODI |
0 |
14 |
17 |
117 |
618 |
228 |
17 |
0 |
| CDI |
0 |
1 |
0 |
27 |
294 |
978 |
168 |
0 |
| VCDI |
0 |
1 |
10 |
64 |
245 |
2356 |
9220 |
19747 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7230 |
2980 |
21 |
12 |
0 |
0 |
0 |
0 |
| OW |
79 |
547 |
49 |
69 |
64 |
32 |
0 |
0 |
| VODI |
2 |
211 |
61 |
200 |
207 |
274 |
21 |
0 |
| ODI |
0 |
33 |
16 |
89 |
279 |
422 |
73 |
0 |
| CDI |
0 |
20 |
13 |
63 |
436 |
602 |
257 |
0 |
| VCDI |
0 |
1 |
10 |
84 |
329 |
2279 |
9054 |
19747 |
|
Date: 2023-11-22:
| 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 |
6349 |
3791 |
223 |
44 |
0 |
0 |
0 |
0 |
| OW |
18 |
444 |
144 |
80 |
4 |
0 |
0 |
0 |
| VODI |
0 |
238 |
57 |
152 |
123 |
42 |
10 |
0 |
| ODI |
0 |
79 |
32 |
117 |
164 |
158 |
12 |
0 |
| CDI |
0 |
31 |
28 |
72 |
191 |
881 |
83 |
0 |
| VCDI |
0 |
4 |
4 |
111 |
316 |
3497 |
9555 |
18812 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6275 |
3628 |
214 |
54 |
3 |
0 |
0 |
0 |
| OW |
88 |
507 |
120 |
40 |
24 |
25 |
2 |
0 |
| VODI |
4 |
327 |
96 |
191 |
169 |
154 |
14 |
0 |
| ODI |
0 |
86 |
31 |
107 |
108 |
325 |
61 |
0 |
| CDI |
0 |
33 |
21 |
92 |
206 |
874 |
198 |
0 |
| VCDI |
0 |
6 |
6 |
92 |
288 |
3200 |
9385 |
18812 |
|
Date: 2023-11-24:
| 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 |
5079 |
4892 |
46 |
63 |
6 |
0 |
0 |
0 |
| OW |
23 |
509 |
88 |
132 |
29 |
8 |
0 |
0 |
| VODI |
1 |
197 |
54 |
135 |
164 |
70 |
9 |
0 |
| ODI |
0 |
88 |
20 |
61 |
162 |
155 |
11 |
0 |
| CDI |
0 |
27 |
27 |
75 |
184 |
822 |
106 |
0 |
| VCDI |
0 |
2 |
7 |
40 |
284 |
3091 |
11151 |
18048 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5037 |
4609 |
56 |
75 |
17 |
0 |
0 |
0 |
| OW |
60 |
634 |
55 |
79 |
39 |
44 |
3 |
0 |
| VODI |
6 |
345 |
77 |
174 |
192 |
231 |
19 |
0 |
| ODI |
0 |
90 |
30 |
93 |
183 |
253 |
22 |
0 |
| CDI |
0 |
37 |
18 |
52 |
178 |
867 |
150 |
0 |
| VCDI |
0 |
0 |
6 |
33 |
220 |
2751 |
11083 |
18048 |
|
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