Validation of sea ice concentration - American sector
Bulletin date: 2022-11-17
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-11-11:
| 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 |
4314 |
6274 |
885 |
148 |
57 |
54 |
5 |
0 |
| OW |
9 |
293 |
239 |
202 |
68 |
14 |
13 |
0 |
| VODI |
9 |
217 |
190 |
208 |
178 |
29 |
30 |
0 |
| ODI |
0 |
114 |
62 |
141 |
214 |
98 |
41 |
0 |
| CDI |
4 |
47 |
8 |
56 |
297 |
390 |
60 |
0 |
| VCDI |
0 |
7 |
8 |
67 |
598 |
4145 |
15408 |
10665 |
|
...date precedes bulletin
|
Date: 2022-11-13:
| 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 |
3302 |
6936 |
559 |
163 |
73 |
56 |
7 |
0 |
| OW |
9 |
316 |
175 |
252 |
82 |
18 |
16 |
0 |
| VODI |
3 |
269 |
70 |
126 |
205 |
63 |
29 |
0 |
| ODI |
0 |
191 |
70 |
100 |
158 |
143 |
35 |
0 |
| CDI |
0 |
147 |
91 |
56 |
154 |
361 |
54 |
0 |
| VCDI |
0 |
16 |
8 |
18 |
335 |
3182 |
14903 |
13115 |
|
...date precedes bulletin
|
Date: 2022-11-15:
| 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 |
2397 |
7047 |
1211 |
205 |
90 |
34 |
2 |
0 |
| OW |
10 |
251 |
173 |
114 |
195 |
28 |
1 |
0 |
| VODI |
0 |
147 |
102 |
178 |
187 |
62 |
2 |
0 |
| ODI |
0 |
78 |
75 |
117 |
172 |
143 |
3 |
0 |
| CDI |
0 |
37 |
64 |
185 |
210 |
391 |
28 |
0 |
| VCDI |
0 |
12 |
6 |
123 |
579 |
3522 |
13248 |
14437 |
|
...date precedes bulletin
|
Date: 2022-11-17:
| 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 |
1633 |
8509 |
461 |
151 |
65 |
5 |
0 |
0 |
| OW |
31 |
348 |
150 |
185 |
116 |
21 |
1 |
0 |
| VODI |
3 |
214 |
79 |
214 |
208 |
38 |
2 |
0 |
| ODI |
0 |
72 |
65 |
158 |
262 |
77 |
1 |
0 |
| CDI |
0 |
21 |
38 |
150 |
393 |
216 |
3 |
0 |
| VCDI |
0 |
22 |
12 |
204 |
1027 |
6098 |
10648 |
13965 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1634 |
8580 |
503 |
220 |
112 |
16 |
0 |
0 |
| OW |
32 |
281 |
116 |
133 |
105 |
24 |
1 |
0 |
| VODI |
1 |
207 |
73 |
190 |
192 |
36 |
2 |
0 |
| ODI |
0 |
70 |
59 |
145 |
243 |
72 |
3 |
0 |
| CDI |
0 |
23 |
36 |
150 |
370 |
198 |
1 |
0 |
| VCDI |
0 |
25 |
18 |
224 |
1049 |
6109 |
10648 |
13965 |
|
Date: 2022-11-19:
| 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 |
1463 |
7184 |
1191 |
278 |
143 |
12 |
0 |
0 |
| OW |
49 |
193 |
300 |
188 |
271 |
67 |
4 |
0 |
| VODI |
4 |
106 |
165 |
187 |
294 |
157 |
1 |
0 |
| ODI |
0 |
29 |
36 |
156 |
242 |
243 |
4 |
0 |
| CDI |
0 |
10 |
21 |
149 |
227 |
407 |
28 |
2 |
| VCDI |
0 |
1 |
0 |
126 |
1031 |
7634 |
12354 |
10909 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1484 |
7214 |
1278 |
315 |
233 |
38 |
3 |
0 |
| OW |
28 |
167 |
222 |
152 |
222 |
55 |
1 |
0 |
| VODI |
4 |
100 |
154 |
173 |
255 |
168 |
1 |
0 |
| ODI |
0 |
30 |
39 |
149 |
223 |
227 |
6 |
0 |
| CDI |
0 |
10 |
18 |
146 |
231 |
396 |
27 |
5 |
| VCDI |
0 |
2 |
2 |
149 |
1044 |
7636 |
12353 |
10906 |
|
Date: 2022-11-21:
| 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 |
598 |
5767 |
2544 |
251 |
72 |
0 |
0 |
0 |
| OW |
55 |
331 |
218 |
302 |
142 |
5 |
0 |
0 |
| VODI |
4 |
67 |
54 |
292 |
451 |
91 |
0 |
0 |
| ODI |
0 |
18 |
19 |
95 |
477 |
370 |
34 |
0 |
| CDI |
0 |
5 |
15 |
31 |
363 |
793 |
35 |
0 |
| VCDI |
0 |
0 |
5 |
57 |
483 |
6802 |
10433 |
14587 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
610 |
5863 |
2610 |
405 |
206 |
8 |
13 |
0 |
| OW |
45 |
191 |
114 |
218 |
215 |
81 |
7 |
0 |
| VODI |
2 |
80 |
53 |
157 |
349 |
290 |
15 |
0 |
| ODI |
0 |
21 |
39 |
77 |
251 |
286 |
16 |
0 |
| CDI |
0 |
13 |
14 |
68 |
324 |
413 |
21 |
1 |
| VCDI |
0 |
20 |
25 |
103 |
643 |
6983 |
10430 |
14586 |
|
Date: 2022-11-23:
| 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 |
1414 |
5907 |
693 |
363 |
195 |
0 |
0 |
0 |
| OW |
73 |
426 |
250 |
327 |
107 |
2 |
0 |
0 |
| VODI |
19 |
123 |
43 |
318 |
316 |
60 |
1 |
0 |
| ODI |
0 |
12 |
7 |
77 |
322 |
260 |
39 |
0 |
| CDI |
0 |
3 |
19 |
44 |
268 |
496 |
110 |
0 |
| VCDI |
0 |
0 |
6 |
86 |
394 |
5499 |
11811 |
15776 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1430 |
6019 |
702 |
457 |
258 |
3 |
11 |
0 |
| OW |
67 |
281 |
189 |
199 |
178 |
49 |
6 |
0 |
| VODI |
9 |
133 |
70 |
225 |
305 |
179 |
6 |
0 |
| ODI |
0 |
31 |
25 |
114 |
205 |
266 |
59 |
0 |
| CDI |
0 |
4 |
7 |
76 |
204 |
468 |
104 |
1 |
| VCDI |
0 |
3 |
25 |
144 |
452 |
5352 |
11775 |
15775 |
|
Date: 2022-11-25:
| 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 |
666 |
5263 |
1197 |
513 |
196 |
0 |
0 |
0 |
| OW |
45 |
543 |
469 |
307 |
187 |
9 |
0 |
0 |
| VODI |
11 |
175 |
107 |
298 |
297 |
35 |
0 |
0 |
| ODI |
0 |
41 |
3 |
92 |
364 |
143 |
0 |
0 |
| CDI |
0 |
14 |
4 |
33 |
302 |
286 |
86 |
5 |
| VCDI |
0 |
0 |
3 |
42 |
390 |
4525 |
11634 |
17581 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
649 |
5324 |
1395 |
568 |
238 |
6 |
0 |
0 |
| OW |
56 |
362 |
213 |
267 |
187 |
24 |
2 |
13 |
| VODI |
16 |
208 |
128 |
212 |
369 |
76 |
5 |
4 |
| ODI |
1 |
109 |
33 |
100 |
270 |
235 |
16 |
2 |
| CDI |
0 |
24 |
8 |
61 |
228 |
347 |
103 |
10 |
| VCDI |
0 |
9 |
6 |
77 |
444 |
4310 |
11594 |
17557 |
|
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