Validation of sea ice concentration - American sector
Bulletin date: 2022-07-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-07-22:
| 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 |
2838 |
7307 |
2344 |
2093 |
517 |
13 |
0 |
0 |
| OW |
0 |
148 |
244 |
789 |
111 |
0 |
0 |
0 |
| VODI |
0 |
105 |
109 |
1098 |
486 |
7 |
0 |
0 |
| ODI |
0 |
56 |
68 |
458 |
1871 |
588 |
3 |
0 |
| CDI |
0 |
5 |
9 |
235 |
3254 |
5539 |
561 |
0 |
| VCDI |
0 |
4 |
1 |
5 |
845 |
9181 |
4974 |
0 |
|
...date precedes bulletin
|
Date: 2022-07-24:
| 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 |
1956 |
9313 |
2301 |
1676 |
316 |
9 |
0 |
0 |
| OW |
0 |
165 |
189 |
755 |
115 |
2 |
0 |
0 |
| VODI |
0 |
129 |
120 |
931 |
466 |
27 |
0 |
0 |
| ODI |
0 |
80 |
25 |
456 |
2036 |
330 |
0 |
0 |
| CDI |
0 |
1 |
4 |
288 |
3923 |
5437 |
835 |
32 |
| VCDI |
0 |
4 |
0 |
15 |
478 |
8316 |
5124 |
12 |
|
...date precedes bulletin
|
Date: 2022-07-26:
| 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 |
1564 |
10233 |
3033 |
1510 |
191 |
2 |
0 |
0 |
| OW |
0 |
109 |
201 |
645 |
82 |
2 |
0 |
0 |
| VODI |
0 |
34 |
67 |
1100 |
426 |
16 |
0 |
0 |
| ODI |
0 |
1 |
6 |
532 |
2636 |
361 |
0 |
0 |
| CDI |
0 |
0 |
2 |
122 |
3335 |
6512 |
567 |
0 |
| VCDI |
0 |
4 |
0 |
16 |
97 |
5218 |
7242 |
0 |
|
...date precedes bulletin
|
Date: 2022-07-28:
| 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 |
2034 |
10222 |
2830 |
1594 |
186 |
14 |
0 |
0 |
| OW |
0 |
115 |
150 |
692 |
117 |
1 |
0 |
0 |
| VODI |
0 |
35 |
47 |
794 |
600 |
47 |
1 |
0 |
| ODI |
0 |
6 |
1 |
565 |
2011 |
823 |
169 |
0 |
| CDI |
0 |
2 |
0 |
291 |
3618 |
4640 |
2205 |
0 |
| VCDI |
0 |
4 |
0 |
26 |
48 |
3556 |
7779 |
643 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2034 |
10235 |
2843 |
1667 |
200 |
13 |
0 |
0 |
| OW |
0 |
97 |
124 |
592 |
93 |
2 |
0 |
0 |
| VODI |
0 |
42 |
59 |
785 |
584 |
47 |
9 |
0 |
| ODI |
0 |
4 |
2 |
610 |
2081 |
840 |
238 |
0 |
| CDI |
0 |
2 |
0 |
289 |
3542 |
4668 |
2148 |
0 |
| VCDI |
0 |
4 |
0 |
19 |
80 |
3511 |
7759 |
643 |
|
Date: 2022-07-30:
| 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 |
1400 |
12142 |
1894 |
1525 |
180 |
4 |
0 |
0 |
| OW |
0 |
113 |
168 |
646 |
102 |
20 |
0 |
0 |
| VODI |
0 |
36 |
55 |
850 |
582 |
110 |
0 |
0 |
| ODI |
0 |
9 |
4 |
655 |
1783 |
919 |
15 |
0 |
| CDI |
0 |
2 |
0 |
242 |
2841 |
5491 |
1890 |
0 |
| VCDI |
0 |
4 |
0 |
44 |
70 |
3648 |
8070 |
352 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1400 |
12144 |
1898 |
1613 |
188 |
9 |
0 |
0 |
| OW |
0 |
105 |
141 |
530 |
86 |
26 |
0 |
0 |
| VODI |
0 |
42 |
75 |
821 |
566 |
106 |
0 |
0 |
| ODI |
0 |
9 |
7 |
704 |
1874 |
1023 |
14 |
0 |
| CDI |
0 |
2 |
0 |
247 |
2740 |
5472 |
1927 |
0 |
| VCDI |
0 |
4 |
0 |
47 |
104 |
3556 |
8034 |
352 |
|
Date: 2022-08-01:
| 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 |
3384 |
11340 |
1674 |
1128 |
90 |
4 |
0 |
0 |
| OW |
0 |
137 |
223 |
524 |
89 |
0 |
0 |
0 |
| VODI |
0 |
37 |
91 |
1340 |
541 |
20 |
0 |
0 |
| ODI |
0 |
2 |
3 |
573 |
3005 |
330 |
0 |
0 |
| CDI |
0 |
16 |
18 |
88 |
2823 |
5689 |
267 |
0 |
| VCDI |
0 |
4 |
2 |
3 |
24 |
3081 |
6737 |
2579 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3384 |
11272 |
1653 |
1131 |
116 |
4 |
0 |
0 |
| OW |
0 |
161 |
187 |
542 |
118 |
3 |
0 |
0 |
| VODI |
0 |
71 |
114 |
924 |
630 |
90 |
0 |
0 |
| ODI |
0 |
10 |
31 |
656 |
2274 |
331 |
1 |
0 |
| CDI |
0 |
3 |
6 |
311 |
3312 |
5279 |
842 |
13 |
| VCDI |
0 |
19 |
20 |
92 |
122 |
3417 |
6161 |
2566 |
|
Date: 2022-08-03:
| 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 |
2046 |
12521 |
2396 |
1124 |
50 |
0 |
0 |
0 |
| OW |
0 |
110 |
229 |
692 |
133 |
2 |
0 |
0 |
| VODI |
0 |
27 |
176 |
1162 |
709 |
43 |
0 |
0 |
| ODI |
0 |
27 |
10 |
454 |
2661 |
215 |
0 |
0 |
| CDI |
0 |
22 |
23 |
137 |
3410 |
5614 |
271 |
0 |
| VCDI |
0 |
6 |
0 |
2 |
11 |
3343 |
6548 |
1692 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2046 |
12418 |
2276 |
1060 |
89 |
0 |
0 |
0 |
| OW |
0 |
168 |
245 |
578 |
120 |
8 |
0 |
0 |
| VODI |
0 |
60 |
159 |
958 |
746 |
80 |
0 |
0 |
| ODI |
0 |
7 |
116 |
477 |
2212 |
157 |
0 |
0 |
| CDI |
0 |
14 |
14 |
414 |
3687 |
5357 |
509 |
125 |
| VCDI |
0 |
46 |
24 |
84 |
120 |
3615 |
6310 |
1567 |
|
Date: 2022-08-05:
| 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 |
5908 |
10003 |
1749 |
820 |
42 |
0 |
0 |
0 |
| OW |
0 |
125 |
190 |
851 |
120 |
5 |
0 |
0 |
| VODI |
0 |
54 |
139 |
1252 |
538 |
79 |
0 |
0 |
| ODI |
0 |
38 |
26 |
563 |
2293 |
259 |
1 |
0 |
| CDI |
0 |
57 |
11 |
183 |
3530 |
6077 |
241 |
0 |
| VCDI |
0 |
7 |
0 |
2 |
22 |
4073 |
5467 |
1141 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5908 |
9891 |
1565 |
729 |
59 |
0 |
0 |
0 |
| OW |
0 |
176 |
251 |
531 |
77 |
1 |
0 |
0 |
| VODI |
0 |
86 |
138 |
1152 |
610 |
47 |
0 |
0 |
| ODI |
0 |
7 |
113 |
708 |
1726 |
324 |
0 |
0 |
| CDI |
0 |
25 |
33 |
520 |
3982 |
5554 |
489 |
417 |
| VCDI |
0 |
99 |
15 |
31 |
91 |
4567 |
5220 |
724 |
|
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