Validation of sea ice concentration - American sector
Bulletin date: 2021-11-18
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-11-12:
| 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 |
6248 |
3738 |
51 |
345 |
300 |
22 |
0 |
0 |
| OW |
60 |
419 |
42 |
327 |
340 |
29 |
0 |
0 |
| VODI |
42 |
82 |
6 |
244 |
416 |
124 |
0 |
0 |
| ODI |
0 |
1 |
1 |
29 |
472 |
330 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
306 |
1162 |
59 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
759 |
3130 |
8812 |
17970 |
|
...date precedes bulletin
|
Date: 2021-11-14:
| 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 |
6397 |
2858 |
42 |
348 |
327 |
55 |
0 |
0 |
| OW |
22 |
517 |
39 |
280 |
229 |
85 |
0 |
0 |
| VODI |
51 |
204 |
13 |
207 |
444 |
174 |
0 |
0 |
| ODI |
19 |
48 |
3 |
24 |
285 |
325 |
2 |
0 |
| CDI |
0 |
0 |
0 |
0 |
202 |
721 |
41 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
370 |
3315 |
7663 |
20556 |
|
...date precedes bulletin
|
Date: 2021-11-16:
| 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 |
5772 |
3133 |
46 |
222 |
173 |
68 |
0 |
0 |
| OW |
48 |
296 |
26 |
275 |
193 |
143 |
0 |
0 |
| VODI |
54 |
128 |
18 |
181 |
444 |
118 |
0 |
0 |
| ODI |
10 |
45 |
3 |
27 |
257 |
328 |
16 |
0 |
| CDI |
0 |
2 |
2 |
4 |
147 |
924 |
162 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
77 |
2401 |
6908 |
23213 |
|
...date precedes bulletin
|
Date: 2021-11-18:
| 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 |
5734 |
2762 |
15 |
57 |
156 |
151 |
0 |
0 |
| OW |
24 |
239 |
7 |
58 |
338 |
215 |
0 |
0 |
| VODI |
27 |
208 |
15 |
82 |
386 |
336 |
0 |
0 |
| ODI |
24 |
73 |
10 |
65 |
198 |
380 |
11 |
0 |
| CDI |
1 |
7 |
0 |
14 |
110 |
479 |
198 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
47 |
2385 |
5979 |
25075 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5745 |
2863 |
14 |
59 |
229 |
175 |
0 |
0 |
| OW |
21 |
193 |
5 |
63 |
277 |
178 |
0 |
0 |
| VODI |
27 |
187 |
20 |
80 |
378 |
336 |
0 |
0 |
| ODI |
17 |
43 |
8 |
68 |
196 |
376 |
9 |
0 |
| CDI |
0 |
3 |
0 |
6 |
114 |
452 |
173 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
41 |
2429 |
6006 |
25075 |
|
Date: 2021-11-20:
| 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 |
5831 |
2419 |
7 |
28 |
26 |
140 |
5 |
0 |
| OW |
13 |
191 |
9 |
31 |
76 |
363 |
15 |
0 |
| VODI |
1 |
123 |
16 |
114 |
153 |
544 |
13 |
0 |
| ODI |
0 |
25 |
11 |
172 |
90 |
487 |
32 |
0 |
| CDI |
0 |
1 |
1 |
85 |
200 |
357 |
144 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
115 |
1795 |
5590 |
26640 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5833 |
2504 |
11 |
35 |
58 |
250 |
5 |
0 |
| OW |
11 |
135 |
9 |
38 |
68 |
305 |
10 |
0 |
| VODI |
1 |
100 |
15 |
119 |
145 |
496 |
19 |
0 |
| ODI |
0 |
20 |
8 |
165 |
89 |
476 |
28 |
0 |
| CDI |
0 |
0 |
1 |
75 |
184 |
328 |
140 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
116 |
1831 |
5597 |
26640 |
|
Date: 2021-11-22:
| 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 |
5721 |
2620 |
6 |
22 |
1 |
20 |
0 |
0 |
| OW |
13 |
170 |
8 |
37 |
15 |
4 |
0 |
0 |
| VODI |
3 |
58 |
12 |
136 |
167 |
15 |
8 |
0 |
| ODI |
0 |
20 |
5 |
99 |
252 |
167 |
40 |
0 |
| CDI |
0 |
0 |
0 |
26 |
271 |
859 |
328 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
88 |
1474 |
4706 |
28495 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5726 |
2493 |
6 |
39 |
58 |
76 |
22 |
0 |
| OW |
11 |
163 |
1 |
17 |
95 |
132 |
113 |
0 |
| VODI |
0 |
132 |
10 |
52 |
59 |
285 |
105 |
0 |
| ODI |
0 |
61 |
7 |
61 |
165 |
304 |
109 |
0 |
| CDI |
0 |
19 |
7 |
99 |
233 |
237 |
197 |
0 |
| VCDI |
0 |
0 |
0 |
52 |
184 |
1505 |
4536 |
28495 |
|
Date: 2021-11-24:
| 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 |
5245 |
2840 |
13 |
46 |
2 |
0 |
0 |
18 |
| OW |
20 |
365 |
5 |
16 |
15 |
0 |
0 |
5 |
| VODI |
15 |
143 |
12 |
115 |
88 |
12 |
0 |
6 |
| ODI |
3 |
31 |
5 |
112 |
107 |
25 |
0 |
4 |
| CDI |
0 |
0 |
1 |
88 |
271 |
123 |
61 |
0 |
| VCDI |
0 |
0 |
0 |
39 |
316 |
2987 |
4587 |
28125 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5252 |
2832 |
14 |
56 |
13 |
1 |
1 |
26 |
| OW |
22 |
297 |
4 |
67 |
28 |
46 |
33 |
6 |
| VODI |
9 |
165 |
8 |
77 |
99 |
207 |
148 |
1 |
| ODI |
0 |
51 |
5 |
88 |
180 |
187 |
159 |
0 |
| CDI |
0 |
25 |
2 |
79 |
166 |
310 |
200 |
0 |
| VCDI |
0 |
9 |
3 |
49 |
313 |
2396 |
4107 |
28125 |
|
Date: 2021-11-26:
| 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 |
5607 |
2238 |
11 |
17 |
0 |
0 |
7 |
8 |
| OW |
25 |
319 |
5 |
42 |
1 |
0 |
1 |
6 |
| VODI |
25 |
266 |
11 |
106 |
38 |
10 |
0 |
10 |
| ODI |
7 |
34 |
10 |
106 |
134 |
37 |
0 |
1 |
| CDI |
0 |
0 |
0 |
57 |
272 |
65 |
4 |
7 |
| VCDI |
0 |
0 |
0 |
9 |
385 |
2578 |
5807 |
27600 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5605 |
2203 |
12 |
27 |
0 |
0 |
6 |
16 |
| OW |
29 |
220 |
2 |
23 |
1 |
0 |
2 |
7 |
| VODI |
26 |
296 |
10 |
101 |
61 |
41 |
33 |
1 |
| ODI |
4 |
103 |
6 |
78 |
158 |
155 |
113 |
1 |
| CDI |
0 |
33 |
6 |
88 |
285 |
384 |
185 |
6 |
| VCDI |
0 |
2 |
1 |
20 |
325 |
2110 |
5480 |
27601 |
|
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