Validation of sea ice concentration
Bulletin date: 2020-06-25
Model vs. observations, sea ice class contingency tables
Date: 2020-06-19:
| 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 |
15221 |
6981 |
2076 |
1666 |
577 |
264 |
145 |
12 |
| OW |
0 |
3 |
68 |
211 |
375 |
229 |
165 |
0 |
| VODI |
0 |
0 |
15 |
103 |
238 |
495 |
446 |
2 |
| ODI |
0 |
0 |
3 |
31 |
49 |
226 |
609 |
1 |
| CDI |
0 |
0 |
0 |
33 |
59 |
117 |
1624 |
9 |
| VCDI |
0 |
0 |
0 |
5 |
6 |
8 |
1596 |
4491 |
|
...date precedes bulletin
|
Date: 2020-06-23:
| 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 |
15424 |
7062 |
2179 |
1737 |
703 |
200 |
156 |
12 |
| OW |
0 |
0 |
17 |
281 |
256 |
210 |
81 |
0 |
| VODI |
0 |
0 |
4 |
140 |
196 |
426 |
247 |
2 |
| ODI |
0 |
0 |
0 |
47 |
92 |
557 |
592 |
10 |
| CDI |
0 |
0 |
0 |
24 |
49 |
226 |
1419 |
117 |
| VCDI |
0 |
0 |
3 |
5 |
4 |
8 |
1692 |
3981 |
|
...date precedes bulletin
|
Date: 2020-06-25:
| 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 |
16107 |
6819 |
2100 |
1851 |
571 |
211 |
159 |
0 |
| OW |
0 |
0 |
35 |
238 |
187 |
239 |
139 |
0 |
| VODI |
0 |
0 |
6 |
94 |
230 |
452 |
424 |
0 |
| ODI |
0 |
0 |
0 |
32 |
60 |
286 |
640 |
0 |
| CDI |
0 |
0 |
0 |
32 |
52 |
183 |
1455 |
123 |
| VCDI |
0 |
0 |
2 |
6 |
7 |
3 |
1507 |
3909 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16107 |
6819 |
2109 |
1884 |
589 |
241 |
178 |
0 |
| OW |
0 |
0 |
25 |
203 |
182 |
215 |
131 |
0 |
| VODI |
0 |
0 |
7 |
100 |
213 |
412 |
401 |
0 |
| ODI |
0 |
0 |
0 |
31 |
84 |
321 |
652 |
0 |
| CDI |
0 |
0 |
0 |
29 |
34 |
184 |
1469 |
117 |
| VCDI |
0 |
0 |
2 |
6 |
5 |
1 |
1493 |
3915 |
|
Date: 2020-06-29:
| 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 |
16726 |
6620 |
2227 |
1450 |
636 |
164 |
113 |
0 |
| OW |
0 |
0 |
44 |
164 |
234 |
104 |
69 |
0 |
| VODI |
0 |
0 |
9 |
93 |
337 |
292 |
187 |
0 |
| ODI |
0 |
0 |
1 |
41 |
311 |
592 |
605 |
0 |
| CDI |
0 |
0 |
0 |
3 |
57 |
300 |
1809 |
33 |
| VCDI |
0 |
0 |
4 |
5 |
8 |
42 |
1535 |
3344 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16726 |
6619 |
2211 |
1503 |
791 |
264 |
163 |
0 |
| OW |
0 |
1 |
57 |
128 |
283 |
223 |
140 |
0 |
| VODI |
0 |
0 |
10 |
77 |
304 |
364 |
400 |
0 |
| ODI |
0 |
0 |
2 |
27 |
97 |
290 |
525 |
0 |
| CDI |
0 |
0 |
2 |
17 |
103 |
309 |
1717 |
47 |
| VCDI |
0 |
0 |
3 |
4 |
5 |
44 |
1373 |
3330 |
|
Date: 2020-07-01:
| 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 |
17167 |
6599 |
2533 |
1102 |
440 |
149 |
151 |
0 |
| OW |
0 |
11 |
61 |
185 |
246 |
134 |
110 |
0 |
| VODI |
0 |
1 |
19 |
155 |
290 |
280 |
305 |
0 |
| ODI |
0 |
0 |
7 |
55 |
130 |
401 |
625 |
0 |
| CDI |
0 |
0 |
0 |
15 |
51 |
238 |
2165 |
158 |
| VCDI |
0 |
0 |
1 |
6 |
3 |
51 |
1065 |
3250 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17167 |
6601 |
2536 |
1172 |
603 |
253 |
246 |
0 |
| OW |
0 |
8 |
51 |
153 |
221 |
199 |
195 |
0 |
| VODI |
0 |
2 |
17 |
127 |
203 |
266 |
461 |
0 |
| ODI |
0 |
0 |
8 |
29 |
54 |
257 |
561 |
5 |
| CDI |
0 |
0 |
8 |
33 |
76 |
265 |
2153 |
252 |
| VCDI |
0 |
0 |
1 |
4 |
3 |
13 |
805 |
3151 |
|
Date: 2020-07-03:
| 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 |
17556 |
6688 |
2375 |
952 |
443 |
211 |
143 |
9 |
| OW |
0 |
2 |
68 |
212 |
249 |
166 |
117 |
0 |
| VODI |
0 |
0 |
20 |
169 |
225 |
361 |
299 |
2 |
| ODI |
0 |
0 |
4 |
55 |
128 |
479 |
507 |
1 |
| CDI |
0 |
0 |
0 |
23 |
69 |
185 |
1951 |
431 |
| VCDI |
0 |
0 |
0 |
1 |
5 |
3 |
365 |
3685 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17556 |
6687 |
2334 |
1089 |
596 |
378 |
268 |
9 |
| OW |
0 |
3 |
87 |
143 |
179 |
193 |
168 |
0 |
| VODI |
0 |
0 |
36 |
110 |
159 |
297 |
413 |
2 |
| ODI |
0 |
0 |
7 |
29 |
75 |
359 |
403 |
13 |
| CDI |
0 |
0 |
3 |
40 |
105 |
172 |
1759 |
1286 |
| VCDI |
0 |
0 |
0 |
1 |
5 |
6 |
371 |
2818 |
|
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