Validation of sea ice concentration
Bulletin date: 2018-06-28
Model vs. observations, sea ice class contingency tables
Date: 2018-06-22:
| 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 |
16973 |
6846 |
1890 |
1011 |
325 |
57 |
148 |
0 |
| OW |
0 |
6 |
68 |
207 |
232 |
102 |
195 |
0 |
| VODI |
0 |
1 |
27 |
122 |
312 |
323 |
606 |
0 |
| ODI |
0 |
0 |
10 |
35 |
80 |
267 |
933 |
0 |
| CDI |
0 |
0 |
1 |
29 |
46 |
182 |
2562 |
15 |
| VCDI |
0 |
0 |
0 |
7 |
4 |
25 |
1501 |
3011 |
|
...date precedes bulletin
|
Date: 2018-06-26:
| 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 |
17582 |
7368 |
1460 |
801 |
281 |
81 |
143 |
0 |
| OW |
0 |
7 |
226 |
231 |
176 |
68 |
63 |
0 |
| VODI |
0 |
0 |
93 |
203 |
324 |
225 |
183 |
0 |
| ODI |
0 |
0 |
13 |
48 |
182 |
530 |
772 |
0 |
| CDI |
0 |
0 |
1 |
17 |
51 |
276 |
2097 |
11 |
| VCDI |
0 |
0 |
0 |
9 |
11 |
92 |
1853 |
2681 |
|
...date precedes bulletin
|
Date: 2018-06-28:
| 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 |
17281 |
7333 |
1532 |
1075 |
357 |
112 |
189 |
0 |
| OW |
0 |
6 |
151 |
270 |
245 |
82 |
95 |
0 |
| VODI |
0 |
1 |
32 |
214 |
324 |
304 |
399 |
0 |
| ODI |
0 |
0 |
3 |
54 |
125 |
316 |
1547 |
0 |
| CDI |
0 |
0 |
1 |
10 |
32 |
140 |
1389 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
20 |
113 |
1727 |
2666 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17281 |
7337 |
1606 |
1202 |
542 |
190 |
296 |
0 |
| OW |
0 |
3 |
88 |
210 |
227 |
152 |
267 |
0 |
| VODI |
0 |
0 |
22 |
150 |
190 |
315 |
820 |
0 |
| ODI |
0 |
0 |
3 |
50 |
95 |
212 |
1418 |
0 |
| CDI |
0 |
0 |
0 |
11 |
28 |
84 |
1672 |
177 |
| VCDI |
0 |
0 |
0 |
14 |
21 |
114 |
873 |
2489 |
|
Date: 2018-07-02:
| 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 |
17210 |
6631 |
2318 |
1071 |
463 |
118 |
222 |
0 |
| OW |
0 |
1 |
74 |
230 |
249 |
151 |
125 |
0 |
| VODI |
0 |
0 |
8 |
155 |
292 |
366 |
369 |
0 |
| ODI |
0 |
0 |
0 |
38 |
114 |
417 |
1803 |
0 |
| CDI |
0 |
0 |
0 |
3 |
9 |
99 |
1117 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
1 |
2 |
1162 |
3336 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17210 |
6632 |
2326 |
1238 |
727 |
381 |
489 |
0 |
| OW |
0 |
0 |
70 |
145 |
196 |
277 |
541 |
0 |
| VODI |
0 |
0 |
4 |
89 |
145 |
293 |
1175 |
0 |
| ODI |
0 |
0 |
0 |
19 |
53 |
187 |
944 |
0 |
| CDI |
0 |
0 |
0 |
6 |
6 |
13 |
1300 |
548 |
| VCDI |
0 |
0 |
0 |
5 |
1 |
2 |
349 |
2788 |
|
Date: 2018-07-04:
| 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 |
17877 |
6810 |
1196 |
1443 |
574 |
157 |
159 |
0 |
| OW |
0 |
1 |
34 |
335 |
341 |
193 |
108 |
0 |
| VODI |
0 |
0 |
5 |
158 |
329 |
562 |
789 |
0 |
| ODI |
0 |
0 |
0 |
42 |
144 |
354 |
854 |
0 |
| CDI |
0 |
0 |
1 |
12 |
56 |
244 |
1115 |
2 |
| VCDI |
0 |
0 |
2 |
7 |
16 |
22 |
1254 |
2963 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17877 |
6811 |
1194 |
1620 |
975 |
412 |
514 |
0 |
| OW |
0 |
0 |
23 |
205 |
184 |
303 |
435 |
0 |
| VODI |
0 |
0 |
18 |
136 |
180 |
529 |
870 |
0 |
| ODI |
0 |
0 |
3 |
28 |
105 |
191 |
644 |
0 |
| CDI |
0 |
0 |
0 |
4 |
15 |
95 |
1378 |
464 |
| VCDI |
0 |
0 |
0 |
4 |
1 |
2 |
438 |
2501 |
|
Date: 2018-07-06:
| 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 |
17830 |
7002 |
1192 |
1256 |
814 |
255 |
153 |
0 |
| OW |
0 |
0 |
27 |
220 |
388 |
393 |
181 |
0 |
| VODI |
0 |
0 |
0 |
73 |
246 |
735 |
931 |
0 |
| ODI |
0 |
0 |
0 |
27 |
166 |
393 |
273 |
0 |
| CDI |
0 |
0 |
3 |
10 |
51 |
379 |
1187 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
3 |
7 |
1093 |
2867 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17830 |
7000 |
1156 |
1338 |
1152 |
777 |
624 |
0 |
| OW |
0 |
2 |
54 |
124 |
216 |
471 |
359 |
0 |
| VODI |
0 |
0 |
9 |
103 |
213 |
605 |
576 |
0 |
| ODI |
0 |
0 |
3 |
14 |
70 |
258 |
369 |
0 |
| CDI |
0 |
0 |
0 |
5 |
12 |
48 |
1290 |
526 |
| VCDI |
0 |
0 |
0 |
6 |
5 |
3 |
600 |
2341 |
|
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