Validation of sea ice concentration - American sector
Bulletin date: 2023-09-07
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-01:
| 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 |
19782 |
8368 |
229 |
160 |
1 |
0 |
0 |
0 |
| OW |
0 |
739 |
394 |
434 |
3 |
0 |
0 |
0 |
| VODI |
0 |
3 |
68 |
1617 |
262 |
0 |
0 |
0 |
| ODI |
0 |
2 |
1 |
513 |
2610 |
254 |
0 |
0 |
| CDI |
0 |
5 |
2 |
7 |
1097 |
3958 |
297 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
62 |
1204 |
3794 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-03:
| 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 |
17922 |
9942 |
256 |
203 |
0 |
0 |
0 |
0 |
| OW |
0 |
1068 |
366 |
407 |
1 |
0 |
0 |
0 |
| VODI |
0 |
26 |
125 |
1608 |
169 |
0 |
0 |
0 |
| ODI |
0 |
2 |
2 |
485 |
2461 |
319 |
0 |
0 |
| CDI |
0 |
5 |
0 |
10 |
1069 |
3883 |
427 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
1933 |
3105 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-05:
| 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 |
20858 |
8532 |
344 |
180 |
0 |
0 |
0 |
0 |
| OW |
0 |
107 |
250 |
468 |
11 |
0 |
0 |
0 |
| VODI |
0 |
11 |
11 |
921 |
231 |
0 |
0 |
0 |
| ODI |
0 |
2 |
0 |
236 |
2370 |
171 |
2 |
0 |
| CDI |
0 |
3 |
2 |
8 |
982 |
4923 |
495 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
26 |
2137 |
2585 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-07:
| 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 |
21061 |
8367 |
211 |
100 |
1 |
0 |
0 |
0 |
| OW |
0 |
379 |
229 |
374 |
14 |
0 |
0 |
0 |
| VODI |
0 |
21 |
46 |
909 |
193 |
0 |
0 |
0 |
| ODI |
0 |
3 |
1 |
515 |
1945 |
80 |
0 |
0 |
| CDI |
0 |
1 |
0 |
6 |
1656 |
4540 |
418 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
12 |
3396 |
1387 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21061 |
8168 |
216 |
140 |
1 |
0 |
0 |
0 |
| OW |
0 |
523 |
216 |
269 |
16 |
0 |
0 |
0 |
| VODI |
0 |
77 |
53 |
991 |
171 |
0 |
0 |
0 |
| ODI |
0 |
2 |
2 |
499 |
1862 |
66 |
0 |
0 |
| CDI |
0 |
1 |
0 |
4 |
1759 |
4225 |
379 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
12 |
3725 |
1426 |
0 |
|
Date: 2023-09-09:
| 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 |
22276 |
7189 |
175 |
70 |
0 |
0 |
0 |
0 |
| OW |
0 |
451 |
253 |
386 |
0 |
0 |
0 |
0 |
| VODI |
0 |
22 |
81 |
979 |
116 |
0 |
0 |
0 |
| ODI |
0 |
2 |
7 |
874 |
1245 |
32 |
0 |
0 |
| CDI |
0 |
0 |
0 |
161 |
1694 |
3396 |
217 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
16 |
4082 |
2140 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22276 |
6847 |
178 |
86 |
0 |
0 |
0 |
0 |
| OW |
0 |
742 |
218 |
309 |
0 |
0 |
0 |
0 |
| VODI |
0 |
73 |
110 |
1119 |
77 |
0 |
0 |
0 |
| ODI |
0 |
2 |
10 |
771 |
1207 |
18 |
0 |
0 |
| CDI |
0 |
0 |
0 |
185 |
1770 |
3321 |
218 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
17 |
4171 |
2139 |
0 |
|
Date: 2023-09-11:
| 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 |
22133 |
7714 |
366 |
245 |
0 |
0 |
0 |
0 |
| OW |
1 |
47 |
142 |
442 |
1 |
0 |
0 |
0 |
| VODI |
0 |
8 |
11 |
1108 |
181 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
95 |
2707 |
98 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
533 |
5865 |
165 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
13 |
1488 |
2499 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22134 |
6819 |
194 |
182 |
0 |
0 |
0 |
0 |
| OW |
0 |
807 |
168 |
375 |
23 |
0 |
0 |
0 |
| VODI |
0 |
138 |
139 |
753 |
383 |
56 |
0 |
0 |
| ODI |
0 |
5 |
18 |
362 |
940 |
346 |
2 |
0 |
| CDI |
0 |
0 |
0 |
218 |
2071 |
2665 |
197 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
18 |
4384 |
2465 |
0 |
|
Date: 2023-09-13:
| 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 |
23191 |
6671 |
343 |
442 |
24 |
0 |
0 |
0 |
| OW |
0 |
68 |
114 |
378 |
84 |
0 |
0 |
0 |
| VODI |
0 |
6 |
12 |
741 |
391 |
51 |
0 |
0 |
| ODI |
0 |
0 |
1 |
195 |
1732 |
743 |
21 |
0 |
| CDI |
0 |
0 |
0 |
1 |
799 |
2875 |
1751 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
15 |
2524 |
2690 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23191 |
5717 |
154 |
213 |
15 |
0 |
0 |
0 |
| OW |
0 |
851 |
176 |
273 |
50 |
0 |
0 |
0 |
| VODI |
0 |
176 |
133 |
838 |
323 |
65 |
0 |
0 |
| ODI |
0 |
1 |
7 |
393 |
967 |
235 |
14 |
0 |
| CDI |
0 |
0 |
0 |
40 |
1672 |
2309 |
1017 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
18 |
3584 |
3431 |
0 |
|
Date: 2023-09-15:
| 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 |
22916 |
7312 |
208 |
158 |
79 |
0 |
0 |
0 |
| OW |
0 |
179 |
160 |
356 |
45 |
0 |
0 |
0 |
| VODI |
0 |
52 |
54 |
697 |
293 |
59 |
0 |
0 |
| ODI |
0 |
0 |
18 |
351 |
1386 |
719 |
19 |
0 |
| CDI |
0 |
0 |
0 |
81 |
916 |
2262 |
1258 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
2395 |
3855 |
16 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22916 |
6165 |
102 |
92 |
51 |
0 |
0 |
0 |
| OW |
0 |
1008 |
90 |
157 |
34 |
0 |
0 |
0 |
| VODI |
0 |
369 |
211 |
704 |
198 |
26 |
0 |
0 |
| ODI |
0 |
1 |
37 |
516 |
769 |
257 |
0 |
0 |
| CDI |
0 |
0 |
0 |
174 |
1685 |
2335 |
743 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
2817 |
4389 |
16 |
|
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