Validation of sea ice concentration - American sector
Bulletin date: 2021-07-15
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-07-09:
| 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 |
2728 |
8551 |
131 |
616 |
92 |
1 |
0 |
0 |
| OW |
1 |
556 |
58 |
625 |
170 |
19 |
0 |
0 |
| VODI |
0 |
116 |
25 |
608 |
596 |
109 |
0 |
0 |
| ODI |
0 |
85 |
7 |
187 |
1357 |
466 |
0 |
0 |
| CDI |
0 |
56 |
4 |
83 |
1603 |
8312 |
569 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
164 |
15653 |
2317 |
0 |
|
...date precedes bulletin
|
Date: 2021-07-11:
| 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 |
4086 |
7831 |
105 |
436 |
88 |
1 |
0 |
0 |
| OW |
11 |
716 |
50 |
456 |
173 |
11 |
0 |
0 |
| VODI |
0 |
128 |
27 |
607 |
651 |
110 |
0 |
0 |
| ODI |
0 |
80 |
6 |
185 |
1524 |
598 |
0 |
0 |
| CDI |
0 |
29 |
4 |
59 |
2108 |
8532 |
11 |
0 |
| VCDI |
0 |
7 |
0 |
9 |
532 |
15800 |
895 |
0 |
|
...date precedes bulletin
|
Date: 2021-07-13:
| 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 |
6721 |
6452 |
124 |
378 |
73 |
0 |
0 |
0 |
| OW |
0 |
148 |
43 |
407 |
96 |
4 |
0 |
0 |
| VODI |
0 |
90 |
13 |
753 |
484 |
14 |
0 |
0 |
| ODI |
0 |
35 |
3 |
86 |
2178 |
745 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
1865 |
9338 |
26 |
0 |
| VCDI |
0 |
4 |
0 |
3 |
357 |
11413 |
3704 |
302 |
|
...date precedes bulletin
|
Date: 2021-07-15:
| 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 |
7282 |
6047 |
111 |
418 |
95 |
0 |
0 |
0 |
| OW |
0 |
198 |
57 |
468 |
167 |
2 |
0 |
0 |
| VODI |
0 |
57 |
15 |
530 |
705 |
44 |
0 |
0 |
| ODI |
0 |
4 |
0 |
67 |
1688 |
1566 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
1103 |
9401 |
82 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
133 |
12994 |
2618 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7282 |
6044 |
111 |
455 |
128 |
1 |
0 |
0 |
| OW |
0 |
204 |
56 |
429 |
150 |
6 |
0 |
0 |
| VODI |
0 |
53 |
16 |
547 |
702 |
51 |
0 |
0 |
| ODI |
0 |
5 |
0 |
52 |
1593 |
1429 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
1183 |
9348 |
65 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
135 |
13172 |
2635 |
0 |
|
Date: 2021-07-17:
| 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 |
7783 |
5913 |
98 |
332 |
122 |
4 |
0 |
0 |
| OW |
0 |
203 |
56 |
485 |
292 |
8 |
0 |
0 |
| VODI |
0 |
31 |
10 |
374 |
939 |
50 |
0 |
0 |
| ODI |
0 |
2 |
1 |
53 |
2456 |
1148 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
1806 |
7429 |
23 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
276 |
11140 |
4820 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7783 |
5921 |
98 |
368 |
190 |
6 |
0 |
0 |
| OW |
0 |
195 |
54 |
405 |
272 |
13 |
0 |
0 |
| VODI |
0 |
31 |
12 |
431 |
935 |
51 |
0 |
0 |
| ODI |
0 |
2 |
1 |
39 |
2355 |
1116 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
1862 |
7307 |
23 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
277 |
11286 |
4820 |
0 |
|
Date: 2021-07-19:
| 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 |
8081 |
5873 |
91 |
342 |
66 |
0 |
0 |
0 |
| OW |
0 |
142 |
65 |
556 |
114 |
0 |
0 |
0 |
| VODI |
0 |
26 |
6 |
622 |
487 |
3 |
0 |
0 |
| ODI |
0 |
2 |
2 |
70 |
4851 |
322 |
0 |
0 |
| CDI |
0 |
1 |
0 |
4 |
2216 |
7018 |
0 |
0 |
| VCDI |
0 |
2 |
0 |
6 |
395 |
8882 |
5620 |
1 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8081 |
5775 |
96 |
490 |
175 |
0 |
0 |
0 |
| OW |
0 |
236 |
54 |
485 |
274 |
12 |
0 |
0 |
| VODI |
0 |
28 |
12 |
529 |
1241 |
20 |
0 |
0 |
| ODI |
0 |
4 |
2 |
83 |
2813 |
527 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
3128 |
5741 |
0 |
0 |
| VCDI |
0 |
3 |
0 |
9 |
498 |
9925 |
5620 |
1 |
|
Date: 2021-07-21:
| 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 |
9259 |
4969 |
93 |
371 |
93 |
0 |
0 |
0 |
| OW |
0 |
215 |
49 |
486 |
168 |
0 |
0 |
0 |
| VODI |
0 |
32 |
12 |
411 |
1120 |
6 |
0 |
0 |
| ODI |
0 |
1 |
0 |
56 |
4182 |
1115 |
0 |
0 |
| CDI |
0 |
1 |
0 |
9 |
1578 |
7042 |
21 |
0 |
| VCDI |
0 |
8 |
0 |
24 |
418 |
9411 |
4617 |
99 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9259 |
4888 |
85 |
487 |
198 |
0 |
0 |
0 |
| OW |
0 |
251 |
47 |
355 |
340 |
0 |
0 |
0 |
| VODI |
0 |
65 |
17 |
393 |
1511 |
29 |
0 |
0 |
| ODI |
0 |
13 |
5 |
79 |
2454 |
1153 |
0 |
0 |
| CDI |
0 |
0 |
0 |
19 |
2574 |
6039 |
0 |
0 |
| VCDI |
0 |
9 |
0 |
24 |
482 |
10353 |
4638 |
99 |
|
Date: 2021-07-23:
| 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 |
9207 |
5186 |
86 |
368 |
161 |
4 |
0 |
0 |
| OW |
0 |
242 |
56 |
402 |
220 |
0 |
0 |
0 |
| VODI |
0 |
52 |
11 |
416 |
1331 |
13 |
0 |
0 |
| ODI |
0 |
0 |
0 |
79 |
3836 |
1547 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
1027 |
7271 |
152 |
0 |
| VCDI |
0 |
0 |
0 |
40 |
279 |
8306 |
5522 |
49 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9207 |
5101 |
91 |
498 |
304 |
2 |
0 |
0 |
| OW |
0 |
257 |
45 |
358 |
416 |
4 |
0 |
0 |
| VODI |
0 |
115 |
13 |
298 |
1547 |
80 |
0 |
0 |
| ODI |
0 |
7 |
4 |
105 |
2030 |
1604 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
2226 |
6033 |
120 |
0 |
| VCDI |
0 |
0 |
0 |
42 |
331 |
9418 |
5554 |
49 |
|
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