Validation of sea ice concentration - American sector
Bulletin date: 2021-12-30
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-12-24:
| 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 |
49 |
4 |
25 |
2 |
6 |
27 |
0 |
| OW |
0 |
253 |
15 |
98 |
88 |
283 |
59 |
0 |
| VODI |
0 |
225 |
13 |
127 |
95 |
367 |
39 |
0 |
| ODI |
0 |
82 |
12 |
85 |
113 |
362 |
131 |
0 |
| CDI |
0 |
34 |
4 |
70 |
102 |
362 |
307 |
0 |
| VCDI |
0 |
31 |
7 |
63 |
56 |
2431 |
9797 |
30042 |
|
...date precedes bulletin
|
Date: 2021-12-26:
| 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 |
49 |
2 |
8 |
2 |
0 |
3 |
0 |
| OW |
0 |
115 |
7 |
42 |
43 |
25 |
176 |
0 |
| VODI |
0 |
231 |
19 |
173 |
146 |
236 |
209 |
0 |
| ODI |
0 |
33 |
8 |
131 |
151 |
228 |
162 |
0 |
| CDI |
0 |
22 |
3 |
81 |
102 |
420 |
394 |
1 |
| VCDI |
0 |
0 |
1 |
63 |
214 |
2934 |
6116 |
33316 |
|
...date precedes bulletin
|
Date: 2021-12-28:
| 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 |
30 |
5 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
29 |
3 |
69 |
27 |
0 |
0 |
0 |
| VODI |
0 |
82 |
14 |
307 |
166 |
10 |
0 |
0 |
| ODI |
0 |
10 |
4 |
138 |
230 |
101 |
82 |
0 |
| CDI |
0 |
0 |
0 |
54 |
167 |
192 |
503 |
37 |
| VCDI |
0 |
0 |
0 |
2 |
159 |
1068 |
9180 |
33182 |
|
...date precedes bulletin
|
Date: 2021-12-30:
| 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 |
1 |
1 |
27 |
0 |
0 |
0 |
0 |
| OW |
0 |
4 |
2 |
32 |
17 |
0 |
0 |
0 |
| VODI |
0 |
2 |
1 |
151 |
132 |
4 |
0 |
0 |
| ODI |
0 |
8 |
3 |
130 |
380 |
37 |
10 |
0 |
| CDI |
0 |
0 |
0 |
48 |
291 |
236 |
193 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
84 |
1072 |
6009 |
36991 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1 |
1 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
4 |
2 |
33 |
18 |
0 |
0 |
0 |
| VODI |
0 |
2 |
1 |
119 |
136 |
4 |
0 |
0 |
| ODI |
0 |
1 |
0 |
144 |
307 |
31 |
20 |
0 |
| CDI |
0 |
7 |
3 |
65 |
353 |
246 |
216 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
90 |
1068 |
5976 |
36991 |
|
Date: 2022-01-01:
| 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 |
0 |
0 |
0 |
15 |
3 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
19 |
17 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
39 |
72 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
22 |
298 |
43 |
0 |
0 |
| CDI |
0 |
0 |
0 |
44 |
354 |
414 |
76 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
251 |
1418 |
7190 |
35589 |
|
|
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 |
17 |
4 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
18 |
14 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
39 |
88 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
22 |
275 |
53 |
1 |
0 |
| CDI |
0 |
0 |
0 |
38 |
326 |
416 |
106 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
288 |
1406 |
7159 |
35589 |
|
Date: 2022-01-03:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
19 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
51 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
177 |
32 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
268 |
569 |
76 |
7 |
| VCDI |
0 |
0 |
0 |
2 |
136 |
1860 |
9704 |
32960 |
|
|
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 |
10 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
23 |
1 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
43 |
8 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
84 |
14 |
11 |
0 |
| CDI |
0 |
0 |
0 |
2 |
234 |
259 |
109 |
2 |
| VCDI |
0 |
0 |
0 |
2 |
257 |
2182 |
9660 |
32965 |
|
Date: 2022-01-05:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
26 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
70 |
18 |
9 |
0 |
| CDI |
0 |
0 |
0 |
5 |
210 |
176 |
70 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
542 |
2900 |
8868 |
32960 |
|
|
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 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
37 |
4 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
58 |
17 |
13 |
0 |
| CDI |
0 |
0 |
0 |
4 |
155 |
135 |
128 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
598 |
2938 |
8806 |
32960 |
|
Date: 2022-01-07:
| 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 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
14 |
27 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
117 |
158 |
10 |
17 |
| VCDI |
0 |
0 |
0 |
39 |
414 |
2616 |
8523 |
33921 |
|
|
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 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
15 |
33 |
2 |
0 |
| CDI |
0 |
0 |
0 |
6 |
75 |
121 |
41 |
14 |
| VCDI |
0 |
0 |
0 |
41 |
455 |
2648 |
8490 |
33924 |
|
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