Validation of sea ice concentration - American sector
Bulletin date: 2021-11-25
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-11-19:
| 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 |
5852 |
2516 |
9 |
37 |
46 |
204 |
1 |
0 |
| OW |
13 |
214 |
3 |
29 |
77 |
428 |
8 |
0 |
| VODI |
1 |
184 |
17 |
71 |
160 |
566 |
7 |
0 |
| ODI |
0 |
70 |
13 |
165 |
112 |
429 |
77 |
0 |
| CDI |
0 |
1 |
1 |
51 |
97 |
355 |
244 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
53 |
2258 |
6767 |
24730 |
|
...date precedes bulletin
|
Date: 2021-11-21:
| 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 |
5805 |
2374 |
8 |
23 |
14 |
27 |
48 |
0 |
| OW |
11 |
196 |
4 |
40 |
75 |
184 |
117 |
0 |
| VODI |
0 |
112 |
11 |
86 |
125 |
449 |
71 |
0 |
| ODI |
0 |
49 |
10 |
112 |
146 |
392 |
49 |
0 |
| CDI |
0 |
1 |
1 |
91 |
244 |
446 |
109 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
148 |
1490 |
4762 |
28029 |
|
...date precedes bulletin
|
Date: 2021-11-23:
| 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 |
5132 |
3102 |
16 |
46 |
2 |
0 |
0 |
19 |
| OW |
16 |
253 |
4 |
14 |
17 |
0 |
0 |
4 |
| VODI |
12 |
124 |
7 |
66 |
172 |
6 |
0 |
10 |
| ODI |
0 |
56 |
5 |
124 |
88 |
52 |
7 |
0 |
| CDI |
0 |
27 |
0 |
143 |
188 |
451 |
192 |
0 |
| VCDI |
0 |
8 |
0 |
19 |
124 |
2059 |
4589 |
28712 |
|
...date precedes bulletin
|
Date: 2021-11-25:
| 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 |
5906 |
2073 |
11 |
11 |
0 |
0 |
0 |
17 |
| OW |
23 |
352 |
6 |
40 |
1 |
0 |
0 |
6 |
| VODI |
21 |
231 |
8 |
88 |
79 |
5 |
0 |
6 |
| ODI |
3 |
50 |
6 |
90 |
140 |
23 |
0 |
4 |
| CDI |
0 |
1 |
1 |
58 |
254 |
56 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
28 |
361 |
3044 |
4806 |
28057 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5901 |
2090 |
11 |
11 |
7 |
0 |
0 |
20 |
| OW |
27 |
263 |
4 |
29 |
30 |
1 |
0 |
3 |
| VODI |
22 |
275 |
8 |
84 |
64 |
15 |
0 |
7 |
| ODI |
3 |
64 |
4 |
87 |
92 |
27 |
0 |
3 |
| CDI |
0 |
15 |
5 |
67 |
263 |
38 |
14 |
0 |
| VCDI |
0 |
0 |
0 |
37 |
379 |
3047 |
4792 |
28057 |
|
Date: 2021-11-27:
| 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 |
5397 |
2362 |
6 |
30 |
0 |
3 |
6 |
0 |
| OW |
32 |
282 |
2 |
36 |
0 |
8 |
7 |
0 |
| VODI |
21 |
288 |
13 |
99 |
32 |
6 |
3 |
0 |
| ODI |
12 |
65 |
10 |
80 |
95 |
29 |
2 |
0 |
| CDI |
0 |
0 |
0 |
41 |
276 |
128 |
6 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
364 |
1871 |
6094 |
28155 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5393 |
2371 |
6 |
18 |
0 |
9 |
11 |
0 |
| OW |
37 |
250 |
4 |
32 |
0 |
2 |
2 |
0 |
| VODI |
20 |
237 |
8 |
97 |
28 |
24 |
3 |
0 |
| ODI |
12 |
129 |
10 |
71 |
79 |
35 |
2 |
0 |
| CDI |
0 |
10 |
3 |
57 |
264 |
109 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
396 |
1866 |
6090 |
28155 |
|
Date: 2021-11-29:
| 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 |
4805 |
3065 |
4 |
6 |
0 |
0 |
0 |
0 |
| OW |
8 |
237 |
14 |
136 |
2 |
0 |
0 |
0 |
| VODI |
0 |
88 |
14 |
136 |
77 |
0 |
0 |
0 |
| ODI |
0 |
11 |
5 |
64 |
116 |
5 |
1 |
0 |
| CDI |
0 |
0 |
0 |
5 |
191 |
127 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
487 |
2110 |
9175 |
24965 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4801 |
2811 |
4 |
10 |
0 |
0 |
7 |
0 |
| OW |
12 |
232 |
4 |
31 |
0 |
8 |
6 |
0 |
| VODI |
0 |
239 |
6 |
57 |
20 |
4 |
4 |
0 |
| ODI |
0 |
66 |
10 |
107 |
39 |
1 |
3 |
0 |
| CDI |
0 |
51 |
10 |
94 |
137 |
89 |
1 |
0 |
| VCDI |
0 |
2 |
3 |
50 |
677 |
2140 |
9165 |
24965 |
|
Date: 2021-12-01:
| 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 |
4513 |
3089 |
9 |
46 |
0 |
0 |
0 |
0 |
| OW |
25 |
207 |
2 |
94 |
10 |
0 |
0 |
0 |
| VODI |
0 |
97 |
5 |
120 |
84 |
0 |
0 |
0 |
| ODI |
0 |
29 |
9 |
46 |
149 |
2 |
0 |
0 |
| CDI |
0 |
0 |
1 |
11 |
205 |
89 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
436 |
1908 |
6058 |
28620 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4518 |
2966 |
5 |
11 |
0 |
0 |
0 |
0 |
| OW |
20 |
276 |
3 |
14 |
3 |
0 |
0 |
4 |
| VODI |
0 |
139 |
6 |
72 |
37 |
0 |
0 |
17 |
| ODI |
0 |
34 |
4 |
114 |
24 |
0 |
0 |
7 |
| CDI |
0 |
7 |
8 |
76 |
78 |
26 |
2 |
4 |
| VCDI |
0 |
0 |
0 |
30 |
742 |
1973 |
6058 |
28588 |
|
Date: 2021-12-03:
| 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 |
3467 |
3623 |
29 |
136 |
4 |
0 |
0 |
0 |
| OW |
29 |
213 |
17 |
76 |
39 |
0 |
0 |
0 |
| VODI |
0 |
93 |
9 |
187 |
60 |
0 |
0 |
0 |
| ODI |
0 |
38 |
5 |
118 |
151 |
27 |
0 |
0 |
| CDI |
0 |
8 |
2 |
37 |
219 |
90 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
817 |
3834 |
6248 |
26289 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3481 |
3618 |
28 |
93 |
4 |
0 |
0 |
0 |
| OW |
13 |
210 |
15 |
124 |
31 |
0 |
0 |
0 |
| VODI |
2 |
104 |
16 |
134 |
71 |
0 |
0 |
12 |
| ODI |
0 |
19 |
1 |
67 |
59 |
0 |
0 |
10 |
| CDI |
0 |
10 |
1 |
52 |
71 |
35 |
0 |
6 |
| VCDI |
0 |
14 |
1 |
85 |
1054 |
3916 |
6248 |
26261 |
|
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