Validation of sea ice concentration - American sector
Bulletin date: 2024-05-23
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-05-17:
| 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 |
8266 |
1393 |
15 |
27 |
8 |
0 |
0 |
0 |
| OW |
0 |
1182 |
78 |
149 |
57 |
0 |
0 |
0 |
| VODI |
0 |
495 |
215 |
1027 |
261 |
17 |
5 |
0 |
| ODI |
0 |
56 |
43 |
641 |
750 |
170 |
17 |
0 |
| CDI |
0 |
70 |
63 |
573 |
1175 |
1230 |
392 |
9 |
| VCDI |
0 |
0 |
0 |
39 |
755 |
3239 |
15697 |
23117 |
|
...date precedes bulletin
|
Date: 2024-05-19:
| 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 |
8512 |
1322 |
5 |
29 |
5 |
0 |
0 |
0 |
| OW |
0 |
1281 |
49 |
148 |
49 |
1 |
0 |
0 |
| VODI |
0 |
714 |
272 |
959 |
225 |
22 |
2 |
0 |
| ODI |
0 |
92 |
46 |
599 |
712 |
228 |
7 |
0 |
| CDI |
0 |
179 |
70 |
665 |
1435 |
1021 |
361 |
0 |
| VCDI |
0 |
94 |
25 |
334 |
1462 |
3099 |
16597 |
20610 |
|
...date precedes bulletin
|
Date: 2024-05-21:
| 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 |
8711 |
1907 |
13 |
46 |
5 |
0 |
0 |
0 |
| OW |
4 |
1978 |
260 |
319 |
35 |
3 |
0 |
0 |
| VODI |
0 |
105 |
214 |
1305 |
227 |
23 |
0 |
0 |
| ODI |
0 |
28 |
24 |
358 |
967 |
151 |
2 |
0 |
| CDI |
0 |
46 |
25 |
534 |
1557 |
1764 |
180 |
1 |
| VCDI |
0 |
2 |
12 |
138 |
527 |
3165 |
16956 |
19639 |
|
...date precedes bulletin
|
Date: 2024-05-23:
| 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 |
9190 |
1869 |
20 |
95 |
5 |
0 |
0 |
0 |
| OW |
300 |
1726 |
247 |
289 |
40 |
3 |
0 |
0 |
| VODI |
12 |
310 |
168 |
1087 |
198 |
31 |
3 |
0 |
| ODI |
0 |
48 |
25 |
509 |
635 |
126 |
10 |
0 |
| CDI |
0 |
88 |
36 |
686 |
1429 |
1479 |
438 |
3 |
| VCDI |
0 |
58 |
28 |
242 |
672 |
2719 |
16329 |
20078 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9155 |
1823 |
17 |
97 |
6 |
0 |
0 |
0 |
| OW |
319 |
1638 |
180 |
220 |
31 |
2 |
0 |
0 |
| VODI |
28 |
408 |
229 |
1025 |
182 |
35 |
2 |
0 |
| ODI |
0 |
56 |
28 |
575 |
582 |
127 |
14 |
0 |
| CDI |
0 |
95 |
41 |
785 |
1472 |
1436 |
359 |
3 |
| VCDI |
0 |
79 |
29 |
206 |
706 |
2758 |
16405 |
20078 |
|
Date: 2024-05-25:
| 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 |
9509 |
2041 |
8 |
69 |
16 |
0 |
0 |
0 |
| OW |
376 |
1737 |
136 |
253 |
42 |
0 |
0 |
0 |
| VODI |
0 |
263 |
127 |
1028 |
180 |
23 |
0 |
0 |
| ODI |
0 |
93 |
42 |
579 |
561 |
130 |
10 |
0 |
| CDI |
0 |
117 |
53 |
643 |
1302 |
1582 |
470 |
16 |
| VCDI |
0 |
49 |
35 |
217 |
660 |
2236 |
14188 |
22440 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9432 |
1958 |
8 |
88 |
16 |
0 |
0 |
0 |
| OW |
395 |
1602 |
106 |
190 |
38 |
1 |
0 |
0 |
| VODI |
58 |
433 |
152 |
953 |
166 |
16 |
0 |
0 |
| ODI |
0 |
101 |
44 |
666 |
468 |
123 |
15 |
0 |
| CDI |
0 |
127 |
50 |
679 |
1407 |
1515 |
360 |
21 |
| VCDI |
0 |
79 |
41 |
213 |
666 |
2316 |
14293 |
22435 |
|
Date: 2024-05-27:
| 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 |
9725 |
3056 |
15 |
34 |
13 |
0 |
0 |
0 |
| OW |
181 |
1442 |
336 |
297 |
45 |
0 |
0 |
0 |
| VODI |
0 |
142 |
93 |
1480 |
316 |
12 |
0 |
0 |
| ODI |
0 |
55 |
30 |
481 |
1010 |
88 |
2 |
0 |
| CDI |
0 |
35 |
44 |
385 |
1340 |
2079 |
196 |
11 |
| VCDI |
0 |
0 |
0 |
20 |
403 |
2500 |
18239 |
17126 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9452 |
2105 |
8 |
57 |
23 |
0 |
0 |
0 |
| OW |
417 |
1713 |
108 |
166 |
27 |
1 |
0 |
0 |
| VODI |
37 |
501 |
186 |
812 |
167 |
8 |
2 |
0 |
| ODI |
0 |
195 |
72 |
622 |
544 |
58 |
10 |
0 |
| CDI |
0 |
133 |
95 |
791 |
1471 |
1415 |
448 |
11 |
| VCDI |
0 |
83 |
49 |
249 |
895 |
3197 |
17977 |
17126 |
|
Date: 2024-05-29:
| 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 |
10595 |
2791 |
26 |
74 |
3 |
0 |
0 |
0 |
| OW |
95 |
1286 |
256 |
390 |
50 |
1 |
0 |
0 |
| VODI |
0 |
224 |
198 |
1282 |
296 |
10 |
2 |
0 |
| ODI |
0 |
76 |
21 |
476 |
740 |
54 |
22 |
1 |
| CDI |
0 |
83 |
70 |
416 |
1364 |
1762 |
573 |
37 |
| VCDI |
0 |
0 |
0 |
106 |
609 |
3778 |
18533 |
14931 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10085 |
1828 |
14 |
84 |
2 |
0 |
0 |
0 |
| OW |
605 |
1488 |
83 |
184 |
26 |
3 |
0 |
0 |
| VODI |
0 |
599 |
249 |
690 |
170 |
11 |
2 |
0 |
| ODI |
0 |
236 |
81 |
643 |
452 |
40 |
32 |
0 |
| CDI |
0 |
185 |
76 |
743 |
1468 |
1291 |
604 |
8 |
| VCDI |
0 |
124 |
68 |
400 |
944 |
4260 |
18492 |
14961 |
|
Date: 2024-05-31:
| 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 |
11056 |
2498 |
22 |
75 |
1 |
0 |
0 |
0 |
| OW |
2 |
1337 |
208 |
378 |
26 |
2 |
0 |
0 |
| VODI |
0 |
355 |
191 |
1154 |
270 |
33 |
9 |
0 |
| ODI |
0 |
142 |
53 |
492 |
660 |
152 |
42 |
0 |
| CDI |
0 |
191 |
93 |
465 |
1376 |
1889 |
523 |
0 |
| VCDI |
0 |
0 |
13 |
167 |
730 |
4167 |
15211 |
17248 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10650 |
1751 |
19 |
90 |
1 |
0 |
0 |
0 |
| OW |
408 |
1251 |
55 |
186 |
14 |
7 |
0 |
0 |
| VODI |
0 |
760 |
161 |
662 |
150 |
30 |
5 |
0 |
| ODI |
0 |
330 |
93 |
659 |
432 |
91 |
47 |
0 |
| CDI |
0 |
281 |
182 |
780 |
1418 |
1266 |
582 |
7 |
| VCDI |
0 |
150 |
70 |
354 |
1048 |
4849 |
15151 |
17241 |
|
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