Validation of sea ice concentration - American sector
Bulletin date: 2023-10-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-13:
| 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 |
18086 |
5048 |
135 |
170 |
27 |
0 |
0 |
0 |
| OW |
0 |
702 |
183 |
556 |
265 |
27 |
0 |
0 |
| VODI |
0 |
100 |
93 |
267 |
500 |
111 |
0 |
0 |
| ODI |
0 |
29 |
41 |
128 |
430 |
241 |
0 |
0 |
| CDI |
0 |
0 |
10 |
99 |
364 |
1162 |
249 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
50 |
1653 |
7040 |
8094 |
|
...date precedes bulletin
|
Date: 2023-10-15:
| 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 |
16924 |
5619 |
133 |
142 |
59 |
0 |
0 |
0 |
| OW |
0 |
648 |
135 |
360 |
313 |
40 |
0 |
0 |
| VODI |
0 |
210 |
69 |
237 |
699 |
270 |
7 |
0 |
| ODI |
0 |
43 |
34 |
103 |
456 |
291 |
17 |
0 |
| CDI |
0 |
13 |
17 |
81 |
539 |
980 |
124 |
0 |
| VCDI |
0 |
0 |
4 |
33 |
179 |
1961 |
8111 |
7015 |
|
...date precedes bulletin
|
Date: 2023-10-17:
| 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 |
15673 |
6218 |
236 |
317 |
131 |
0 |
0 |
0 |
| OW |
0 |
491 |
180 |
320 |
87 |
4 |
0 |
0 |
| VODI |
0 |
84 |
85 |
381 |
352 |
56 |
0 |
0 |
| ODI |
0 |
10 |
10 |
102 |
637 |
305 |
8 |
0 |
| CDI |
0 |
5 |
9 |
43 |
452 |
2129 |
345 |
0 |
| VCDI |
0 |
0 |
0 |
26 |
80 |
1016 |
7644 |
8430 |
|
...date precedes bulletin
|
Date: 2023-10-19:
| 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 |
14977 |
6277 |
212 |
422 |
191 |
5 |
0 |
0 |
| OW |
0 |
355 |
138 |
303 |
260 |
23 |
0 |
0 |
| VODI |
0 |
56 |
62 |
310 |
432 |
112 |
1 |
0 |
| ODI |
0 |
10 |
7 |
108 |
442 |
357 |
38 |
0 |
| CDI |
0 |
9 |
10 |
37 |
198 |
1811 |
678 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
116 |
1665 |
8189 |
8035 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14977 |
6290 |
228 |
457 |
183 |
6 |
0 |
0 |
| OW |
0 |
359 |
129 |
314 |
291 |
32 |
0 |
0 |
| VODI |
0 |
41 |
58 |
285 |
481 |
125 |
0 |
0 |
| ODI |
0 |
8 |
4 |
89 |
373 |
363 |
54 |
0 |
| CDI |
0 |
9 |
10 |
38 |
183 |
1823 |
713 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
128 |
1624 |
8139 |
8035 |
|
Date: 2023-10-21:
| 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 |
14077 |
6348 |
245 |
325 |
110 |
15 |
0 |
0 |
| OW |
0 |
428 |
134 |
341 |
288 |
56 |
0 |
0 |
| VODI |
0 |
85 |
48 |
248 |
496 |
180 |
0 |
0 |
| ODI |
0 |
27 |
13 |
70 |
377 |
281 |
0 |
0 |
| CDI |
0 |
12 |
17 |
58 |
220 |
1371 |
215 |
0 |
| VCDI |
0 |
0 |
3 |
39 |
160 |
3334 |
11085 |
5160 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14055 |
6436 |
259 |
389 |
157 |
14 |
0 |
0 |
| OW |
22 |
356 |
125 |
302 |
269 |
41 |
0 |
0 |
| VODI |
0 |
77 |
46 |
226 |
540 |
230 |
0 |
0 |
| ODI |
0 |
17 |
14 |
68 |
318 |
330 |
5 |
0 |
| CDI |
0 |
14 |
14 |
60 |
220 |
1258 |
265 |
0 |
| VCDI |
0 |
0 |
2 |
36 |
147 |
3364 |
11030 |
5160 |
|
Date: 2023-10-23:
| 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 |
13967 |
5982 |
138 |
129 |
15 |
0 |
0 |
0 |
| OW |
5 |
623 |
182 |
282 |
28 |
3 |
0 |
0 |
| VODI |
0 |
94 |
157 |
730 |
291 |
61 |
0 |
0 |
| ODI |
0 |
4 |
13 |
221 |
759 |
229 |
7 |
0 |
| CDI |
0 |
2 |
6 |
26 |
477 |
853 |
99 |
0 |
| VCDI |
0 |
0 |
1 |
14 |
146 |
3911 |
9727 |
6684 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13921 |
5936 |
172 |
182 |
19 |
2 |
0 |
0 |
| OW |
51 |
588 |
172 |
423 |
133 |
41 |
0 |
0 |
| VODI |
0 |
153 |
110 |
518 |
446 |
156 |
0 |
0 |
| ODI |
0 |
15 |
24 |
197 |
359 |
223 |
7 |
0 |
| CDI |
0 |
10 |
13 |
57 |
378 |
542 |
177 |
0 |
| VCDI |
0 |
3 |
6 |
25 |
381 |
4093 |
9649 |
6684 |
|
Date: 2023-10-25:
| 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 |
13740 |
5842 |
113 |
133 |
20 |
0 |
0 |
0 |
| OW |
0 |
627 |
183 |
333 |
148 |
0 |
0 |
0 |
| VODI |
0 |
160 |
110 |
386 |
513 |
110 |
0 |
0 |
| ODI |
0 |
28 |
36 |
124 |
362 |
490 |
0 |
0 |
| CDI |
0 |
7 |
4 |
37 |
268 |
1300 |
60 |
0 |
| VCDI |
0 |
0 |
1 |
14 |
239 |
4728 |
9216 |
6534 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13696 |
5580 |
132 |
191 |
104 |
1 |
0 |
0 |
| OW |
44 |
776 |
162 |
323 |
224 |
22 |
0 |
0 |
| VODI |
0 |
233 |
105 |
346 |
474 |
259 |
0 |
0 |
| ODI |
0 |
51 |
32 |
89 |
292 |
343 |
0 |
0 |
| CDI |
0 |
18 |
10 |
51 |
205 |
994 |
27 |
0 |
| VCDI |
0 |
6 |
6 |
27 |
251 |
5009 |
9249 |
6534 |
|
Date: 2023-10-27:
| 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 |
13107 |
5641 |
168 |
263 |
2 |
0 |
0 |
0 |
| OW |
0 |
561 |
180 |
471 |
213 |
7 |
0 |
0 |
| VODI |
0 |
200 |
124 |
326 |
470 |
170 |
0 |
0 |
| ODI |
0 |
36 |
41 |
143 |
311 |
488 |
0 |
0 |
| CDI |
0 |
0 |
6 |
95 |
288 |
1021 |
63 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
175 |
5186 |
9079 |
7027 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13098 |
5275 |
163 |
282 |
52 |
30 |
0 |
0 |
| OW |
9 |
840 |
167 |
394 |
203 |
68 |
0 |
0 |
| VODI |
0 |
248 |
121 |
375 |
568 |
323 |
0 |
0 |
| ODI |
0 |
59 |
52 |
128 |
246 |
371 |
0 |
0 |
| CDI |
0 |
16 |
14 |
95 |
219 |
943 |
24 |
0 |
| VCDI |
0 |
0 |
2 |
28 |
171 |
5137 |
9118 |
7027 |
|
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