Validation of sea ice concentration - American sector
Bulletin date: 2018-04-26
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2018-04-20:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
40 |
96 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
36 |
87 |
18 |
0 |
0 |
| ODI |
0 |
0 |
0 |
29 |
139 |
52 |
4 |
0 |
| CDI |
0 |
0 |
0 |
35 |
255 |
222 |
94 |
36 |
| VCDI |
0 |
0 |
0 |
12 |
380 |
1595 |
12199 |
30537 |
|
...date precedes bulletin
|
Date: 2018-04-22:
| 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 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
5 |
33 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
16 |
228 |
49 |
0 |
0 |
| ODI |
0 |
0 |
0 |
12 |
175 |
58 |
51 |
1 |
| CDI |
0 |
0 |
0 |
17 |
217 |
289 |
205 |
3 |
| VCDI |
0 |
0 |
0 |
3 |
431 |
1700 |
10904 |
31468 |
|
...date precedes bulletin
|
Date: 2018-04-24:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
3 |
9 |
3 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
32 |
160 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
16 |
204 |
41 |
8 |
0 |
| CDI |
0 |
0 |
0 |
8 |
238 |
277 |
148 |
55 |
| VCDI |
0 |
0 |
0 |
0 |
459 |
2350 |
12831 |
29024 |
|
...date precedes bulletin
|
Date: 2018-04-26:
| 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 |
0 |
8 |
1 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
4 |
59 |
23 |
0 |
0 |
0 |
| VODI |
0 |
10 |
5 |
34 |
117 |
9 |
0 |
0 |
| ODI |
0 |
7 |
2 |
25 |
111 |
53 |
4 |
0 |
| CDI |
0 |
0 |
0 |
29 |
203 |
357 |
121 |
73 |
| VCDI |
0 |
0 |
0 |
23 |
458 |
2215 |
14636 |
27255 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
9 |
3 |
14 |
10 |
0 |
0 |
0 |
| OW |
0 |
7 |
1 |
40 |
40 |
0 |
0 |
0 |
| VODI |
0 |
12 |
1 |
26 |
57 |
25 |
0 |
0 |
| ODI |
0 |
7 |
5 |
22 |
93 |
56 |
5 |
0 |
| CDI |
0 |
7 |
2 |
28 |
178 |
326 |
115 |
62 |
| VCDI |
0 |
0 |
0 |
47 |
534 |
2227 |
14641 |
27266 |
|
Date: 2018-04-28:
| 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 |
0 |
20 |
3 |
40 |
0 |
0 |
0 |
0 |
| OW |
0 |
39 |
3 |
62 |
34 |
0 |
0 |
0 |
| VODI |
0 |
26 |
4 |
51 |
56 |
8 |
0 |
0 |
| ODI |
0 |
15 |
5 |
45 |
126 |
31 |
0 |
0 |
| CDI |
0 |
11 |
1 |
64 |
194 |
320 |
56 |
22 |
| VCDI |
0 |
4 |
2 |
38 |
408 |
2418 |
15646 |
26114 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
24 |
3 |
67 |
7 |
0 |
0 |
0 |
| OW |
0 |
29 |
3 |
21 |
28 |
0 |
0 |
0 |
| VODI |
0 |
16 |
0 |
43 |
60 |
5 |
0 |
0 |
| ODI |
0 |
20 |
6 |
44 |
79 |
47 |
0 |
0 |
| CDI |
0 |
8 |
3 |
61 |
182 |
323 |
57 |
41 |
| VCDI |
0 |
18 |
3 |
64 |
462 |
2402 |
15645 |
26095 |
|
Date: 2018-04-30:
| 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 |
0 |
33 |
3 |
73 |
0 |
0 |
0 |
0 |
| OW |
0 |
116 |
15 |
78 |
0 |
0 |
0 |
0 |
| VODI |
0 |
77 |
3 |
77 |
72 |
0 |
0 |
0 |
| ODI |
0 |
31 |
1 |
23 |
202 |
67 |
0 |
0 |
| CDI |
0 |
32 |
2 |
43 |
298 |
367 |
80 |
49 |
| VCDI |
0 |
17 |
2 |
72 |
321 |
2093 |
14788 |
26831 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
38 |
4 |
80 |
0 |
0 |
0 |
0 |
| OW |
0 |
39 |
4 |
39 |
1 |
0 |
0 |
0 |
| VODI |
0 |
35 |
3 |
56 |
50 |
0 |
1 |
0 |
| ODI |
0 |
42 |
7 |
40 |
119 |
79 |
30 |
36 |
| CDI |
0 |
56 |
5 |
59 |
227 |
357 |
130 |
150 |
| VCDI |
0 |
96 |
3 |
92 |
496 |
2091 |
14707 |
26694 |
|
Date: 2018-05-02:
| 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 |
0 |
56 |
7 |
75 |
1 |
0 |
0 |
0 |
| OW |
0 |
118 |
6 |
74 |
9 |
0 |
0 |
0 |
| VODI |
0 |
41 |
5 |
32 |
80 |
1 |
0 |
0 |
| ODI |
0 |
25 |
2 |
38 |
121 |
59 |
0 |
0 |
| CDI |
0 |
28 |
2 |
20 |
241 |
299 |
80 |
37 |
| VCDI |
0 |
20 |
3 |
61 |
441 |
2650 |
14143 |
27091 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
46 |
8 |
80 |
1 |
0 |
0 |
0 |
| OW |
0 |
28 |
1 |
49 |
2 |
0 |
0 |
0 |
| VODI |
0 |
33 |
5 |
37 |
70 |
12 |
0 |
0 |
| ODI |
0 |
35 |
2 |
20 |
111 |
174 |
23 |
0 |
| CDI |
0 |
55 |
3 |
16 |
230 |
451 |
177 |
36 |
| VCDI |
0 |
91 |
6 |
98 |
479 |
2372 |
14023 |
27092 |
|
Date: 2018-05-04:
| 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 |
0 |
66 |
10 |
72 |
0 |
0 |
0 |
0 |
| OW |
0 |
116 |
10 |
74 |
8 |
0 |
0 |
0 |
| VODI |
0 |
48 |
4 |
43 |
67 |
0 |
0 |
0 |
| ODI |
0 |
27 |
4 |
37 |
117 |
23 |
0 |
0 |
| CDI |
0 |
23 |
2 |
73 |
257 |
356 |
54 |
0 |
| VCDI |
0 |
23 |
5 |
67 |
579 |
2391 |
12245 |
29065 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
53 |
14 |
86 |
0 |
0 |
0 |
0 |
| OW |
0 |
30 |
4 |
40 |
4 |
0 |
0 |
0 |
| VODI |
0 |
42 |
6 |
44 |
50 |
0 |
6 |
8 |
| ODI |
0 |
40 |
1 |
43 |
106 |
33 |
27 |
19 |
| CDI |
0 |
49 |
1 |
39 |
288 |
358 |
98 |
119 |
| VCDI |
0 |
89 |
9 |
114 |
580 |
2379 |
12168 |
28919 |
|
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