Validation of sea ice concentration - American sector
Bulletin date: 2024-10-17
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-10-11:
| 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 |
19240 |
6159 |
135 |
81 |
2 |
0 |
0 |
0 |
| OW |
2 |
549 |
216 |
583 |
224 |
2 |
0 |
0 |
| VODI |
6 |
75 |
51 |
329 |
752 |
105 |
4 |
0 |
| ODI |
1 |
17 |
11 |
71 |
482 |
573 |
66 |
0 |
| CDI |
2 |
18 |
6 |
15 |
157 |
1497 |
945 |
0 |
| VCDI |
2 |
18 |
8 |
37 |
92 |
1849 |
7320 |
4164 |
|
...date precedes bulletin
|
Date: 2024-10-13:
| 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 |
18643 |
5656 |
197 |
282 |
27 |
0 |
0 |
0 |
| OW |
12 |
565 |
190 |
450 |
302 |
25 |
0 |
0 |
| VODI |
0 |
93 |
49 |
246 |
461 |
573 |
0 |
0 |
| ODI |
0 |
14 |
20 |
72 |
217 |
836 |
40 |
0 |
| CDI |
2 |
7 |
0 |
17 |
81 |
1101 |
1250 |
0 |
| VCDI |
0 |
8 |
4 |
11 |
89 |
1760 |
8776 |
3790 |
|
...date precedes bulletin
|
Date: 2024-10-15:
| 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 |
18006 |
5745 |
166 |
127 |
5 |
0 |
0 |
0 |
| OW |
5 |
475 |
158 |
329 |
76 |
4 |
0 |
0 |
| VODI |
0 |
80 |
102 |
486 |
334 |
57 |
0 |
0 |
| ODI |
0 |
14 |
6 |
173 |
499 |
289 |
30 |
0 |
| CDI |
6 |
11 |
6 |
33 |
289 |
1511 |
655 |
0 |
| VCDI |
0 |
20 |
5 |
19 |
85 |
2621 |
8490 |
4949 |
|
...date precedes bulletin
|
Date: 2024-10-17:
| 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 |
17053 |
5648 |
167 |
173 |
43 |
0 |
0 |
0 |
| OW |
0 |
500 |
122 |
324 |
191 |
16 |
0 |
0 |
| VODI |
0 |
94 |
96 |
378 |
422 |
108 |
0 |
0 |
| ODI |
0 |
2 |
4 |
116 |
466 |
407 |
3 |
0 |
| CDI |
3 |
18 |
1 |
27 |
369 |
1156 |
289 |
0 |
| VCDI |
0 |
18 |
7 |
14 |
68 |
2656 |
10809 |
4098 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17052 |
5605 |
177 |
200 |
43 |
2 |
0 |
0 |
| OW |
1 |
506 |
102 |
279 |
180 |
22 |
0 |
0 |
| VODI |
0 |
129 |
98 |
354 |
380 |
85 |
0 |
0 |
| ODI |
0 |
4 |
12 |
154 |
452 |
319 |
2 |
0 |
| CDI |
3 |
17 |
0 |
31 |
421 |
1154 |
255 |
0 |
| VCDI |
0 |
19 |
8 |
14 |
83 |
2761 |
10844 |
4098 |
|
Date: 2024-10-19:
| 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 |
16334 |
5336 |
79 |
84 |
17 |
1 |
0 |
0 |
| OW |
6 |
898 |
191 |
288 |
178 |
35 |
0 |
0 |
| VODI |
0 |
224 |
113 |
400 |
348 |
242 |
4 |
0 |
| ODI |
0 |
22 |
20 |
125 |
334 |
414 |
22 |
0 |
| CDI |
0 |
8 |
0 |
47 |
322 |
1093 |
241 |
0 |
| VCDI |
0 |
3 |
1 |
7 |
132 |
2549 |
10185 |
5563 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16335 |
5447 |
95 |
135 |
31 |
2 |
0 |
0 |
| OW |
5 |
713 |
168 |
222 |
213 |
58 |
0 |
0 |
| VODI |
0 |
290 |
114 |
392 |
281 |
213 |
1 |
0 |
| ODI |
0 |
30 |
26 |
149 |
292 |
298 |
20 |
0 |
| CDI |
0 |
4 |
0 |
46 |
394 |
1082 |
149 |
0 |
| VCDI |
0 |
7 |
1 |
7 |
120 |
2681 |
10282 |
5563 |
|
Date: 2024-10-21:
| 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 |
16357 |
5180 |
60 |
52 |
22 |
0 |
0 |
0 |
| OW |
2 |
1456 |
223 |
208 |
24 |
0 |
0 |
0 |
| VODI |
0 |
136 |
165 |
537 |
253 |
16 |
0 |
0 |
| ODI |
0 |
18 |
8 |
152 |
553 |
266 |
30 |
0 |
| CDI |
0 |
3 |
6 |
35 |
658 |
730 |
148 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
754 |
2312 |
10646 |
4848 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16353 |
4909 |
84 |
75 |
5 |
0 |
0 |
0 |
| OW |
6 |
1025 |
168 |
284 |
78 |
10 |
0 |
0 |
| VODI |
0 |
657 |
123 |
344 |
352 |
98 |
0 |
0 |
| ODI |
0 |
119 |
63 |
144 |
287 |
187 |
15 |
0 |
| CDI |
0 |
73 |
19 |
99 |
305 |
486 |
87 |
0 |
| VCDI |
0 |
10 |
5 |
46 |
1237 |
2543 |
10722 |
4848 |
|
Date: 2024-10-23:
| 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 |
16414 |
4914 |
110 |
143 |
3 |
0 |
0 |
0 |
| OW |
47 |
975 |
195 |
405 |
114 |
2 |
0 |
0 |
| VODI |
1 |
129 |
102 |
391 |
451 |
82 |
0 |
0 |
| ODI |
0 |
17 |
16 |
128 |
445 |
257 |
0 |
0 |
| CDI |
0 |
3 |
2 |
57 |
321 |
1049 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
154 |
3450 |
11300 |
4187 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16398 |
4055 |
83 |
177 |
22 |
0 |
0 |
0 |
| OW |
48 |
1221 |
131 |
312 |
192 |
12 |
0 |
0 |
| VODI |
14 |
648 |
139 |
359 |
392 |
235 |
0 |
0 |
| ODI |
2 |
92 |
49 |
174 |
346 |
269 |
5 |
0 |
| CDI |
0 |
17 |
22 |
101 |
388 |
917 |
40 |
0 |
| VCDI |
0 |
5 |
1 |
1 |
148 |
3407 |
11257 |
4187 |
|
Date: 2024-10-25:
| 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 |
15159 |
4792 |
89 |
137 |
91 |
2 |
0 |
0 |
| OW |
3 |
810 |
169 |
307 |
292 |
33 |
0 |
0 |
| VODI |
0 |
133 |
114 |
310 |
483 |
217 |
3 |
0 |
| ODI |
0 |
14 |
16 |
106 |
359 |
478 |
30 |
0 |
| CDI |
0 |
2 |
4 |
52 |
126 |
1153 |
151 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
20 |
2571 |
11846 |
5793 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15128 |
3813 |
43 |
66 |
169 |
7 |
0 |
0 |
| OW |
34 |
1299 |
139 |
288 |
154 |
36 |
0 |
0 |
| VODI |
0 |
533 |
155 |
349 |
567 |
319 |
3 |
0 |
| ODI |
0 |
84 |
35 |
97 |
308 |
676 |
80 |
0 |
| CDI |
0 |
22 |
19 |
97 |
124 |
1003 |
225 |
0 |
| VCDI |
0 |
0 |
1 |
16 |
49 |
2413 |
11722 |
5793 |
|
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