Validation of sea ice concentration - American sector
Bulletin date: 2023-11-16
Data source: OSI SAF N.H. multi-product 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 |
23797 |
2636 |
209 |
285 |
0 |
0 |
0 |
0 |
| OW |
71 |
368 |
146 |
799 |
50 |
1 |
0 |
0 |
| VODI |
4 |
82 |
83 |
678 |
432 |
25 |
0 |
0 |
| ODI |
0 |
40 |
16 |
330 |
569 |
144 |
0 |
0 |
| CDI |
0 |
18 |
8 |
84 |
502 |
528 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
34 |
380 |
3114 |
5696 |
20092 |
|
...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 |
23643 |
2376 |
85 |
120 |
0 |
0 |
0 |
0 |
| OW |
76 |
494 |
99 |
448 |
197 |
0 |
0 |
0 |
| VODI |
5 |
181 |
63 |
507 |
627 |
2 |
0 |
0 |
| ODI |
0 |
48 |
8 |
244 |
723 |
141 |
0 |
0 |
| CDI |
0 |
17 |
2 |
104 |
586 |
573 |
4 |
0 |
| VCDI |
0 |
0 |
0 |
76 |
361 |
3230 |
5785 |
20406 |
|
...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 |
23557 |
2525 |
110 |
156 |
0 |
0 |
0 |
0 |
| OW |
86 |
346 |
130 |
393 |
37 |
0 |
0 |
0 |
| VODI |
17 |
52 |
34 |
531 |
564 |
10 |
0 |
0 |
| ODI |
0 |
11 |
2 |
162 |
1095 |
103 |
0 |
0 |
| CDI |
0 |
1 |
2 |
53 |
769 |
731 |
15 |
0 |
| VCDI |
0 |
0 |
0 |
26 |
513 |
4914 |
6930 |
17356 |
|
...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 |
22711 |
2766 |
136 |
199 |
82 |
0 |
0 |
0 |
| OW |
94 |
115 |
66 |
436 |
252 |
0 |
0 |
0 |
| VODI |
9 |
54 |
28 |
213 |
581 |
45 |
0 |
0 |
| ODI |
0 |
9 |
10 |
85 |
708 |
325 |
0 |
0 |
| CDI |
0 |
0 |
3 |
66 |
549 |
1270 |
62 |
3 |
| VCDI |
0 |
0 |
0 |
102 |
513 |
3340 |
6695 |
19704 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22720 |
2775 |
128 |
226 |
103 |
0 |
0 |
0 |
| OW |
86 |
112 |
76 |
404 |
226 |
0 |
0 |
0 |
| VODI |
8 |
47 |
24 |
216 |
559 |
54 |
3 |
0 |
| ODI |
0 |
9 |
12 |
83 |
702 |
350 |
22 |
0 |
| CDI |
0 |
1 |
2 |
66 |
572 |
1249 |
59 |
5 |
| VCDI |
0 |
0 |
1 |
106 |
523 |
3327 |
6673 |
19702 |
|
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 |
21932 |
2910 |
112 |
74 |
48 |
0 |
0 |
0 |
| OW |
263 |
134 |
84 |
221 |
253 |
13 |
0 |
0 |
| VODI |
71 |
46 |
16 |
233 |
542 |
257 |
2 |
0 |
| ODI |
2 |
9 |
6 |
112 |
550 |
303 |
19 |
0 |
| CDI |
0 |
0 |
3 |
98 |
614 |
878 |
90 |
0 |
| VCDI |
0 |
0 |
0 |
96 |
418 |
2687 |
6791 |
21344 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21963 |
2925 |
118 |
92 |
39 |
0 |
0 |
0 |
| OW |
239 |
123 |
80 |
204 |
246 |
30 |
0 |
0 |
| VODI |
63 |
42 |
13 |
230 |
544 |
226 |
0 |
0 |
| ODI |
3 |
8 |
10 |
118 |
593 |
268 |
36 |
0 |
| CDI |
0 |
1 |
0 |
87 |
588 |
866 |
122 |
0 |
| VCDI |
0 |
0 |
0 |
103 |
415 |
2748 |
6744 |
21344 |
|
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 |
21338 |
3315 |
77 |
27 |
0 |
0 |
0 |
0 |
| OW |
172 |
301 |
104 |
154 |
10 |
25 |
0 |
0 |
| VODI |
27 |
35 |
15 |
375 |
243 |
49 |
0 |
0 |
| ODI |
1 |
2 |
2 |
96 |
783 |
201 |
0 |
0 |
| CDI |
0 |
0 |
0 |
18 |
379 |
1090 |
66 |
8 |
| VCDI |
0 |
0 |
0 |
17 |
280 |
2320 |
7339 |
22362 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21272 |
3179 |
71 |
39 |
0 |
0 |
0 |
0 |
| OW |
209 |
346 |
95 |
183 |
73 |
50 |
0 |
0 |
| VODI |
47 |
115 |
20 |
274 |
300 |
310 |
9 |
0 |
| ODI |
8 |
13 |
12 |
92 |
358 |
426 |
60 |
1 |
| CDI |
2 |
0 |
0 |
70 |
521 |
679 |
180 |
15 |
| VCDI |
0 |
0 |
0 |
29 |
443 |
2220 |
7156 |
22354 |
|
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 |
19154 |
5418 |
141 |
84 |
0 |
0 |
0 |
0 |
| OW |
22 |
389 |
129 |
202 |
0 |
0 |
0 |
0 |
| VODI |
10 |
117 |
91 |
287 |
150 |
50 |
0 |
0 |
| ODI |
1 |
33 |
9 |
181 |
281 |
120 |
1 |
0 |
| CDI |
0 |
0 |
0 |
115 |
287 |
927 |
48 |
0 |
| VCDI |
0 |
0 |
0 |
39 |
542 |
3109 |
7374 |
21920 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19086 |
5231 |
130 |
75 |
0 |
0 |
0 |
0 |
| OW |
77 |
490 |
131 |
146 |
8 |
36 |
0 |
0 |
| VODI |
16 |
200 |
87 |
377 |
256 |
120 |
0 |
0 |
| ODI |
5 |
36 |
18 |
164 |
181 |
364 |
14 |
0 |
| CDI |
2 |
0 |
4 |
96 |
347 |
966 |
118 |
0 |
| VCDI |
1 |
0 |
0 |
50 |
468 |
2720 |
7291 |
21920 |
|
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 |
19063 |
5157 |
90 |
78 |
0 |
0 |
0 |
0 |
| OW |
29 |
394 |
137 |
315 |
15 |
0 |
0 |
0 |
| VODI |
13 |
121 |
68 |
298 |
149 |
61 |
0 |
0 |
| ODI |
1 |
27 |
23 |
140 |
216 |
153 |
0 |
0 |
| CDI |
0 |
1 |
0 |
122 |
294 |
840 |
66 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
357 |
3378 |
8493 |
21114 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19035 |
4827 |
78 |
118 |
10 |
0 |
0 |
0 |
| OW |
48 |
611 |
105 |
174 |
46 |
30 |
0 |
0 |
| VODI |
15 |
211 |
108 |
392 |
187 |
233 |
2 |
0 |
| ODI |
6 |
47 |
22 |
178 |
236 |
276 |
8 |
0 |
| CDI |
2 |
3 |
5 |
87 |
270 |
942 |
62 |
2 |
| VCDI |
0 |
1 |
0 |
22 |
282 |
2951 |
8487 |
21112 |
|
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