Validation of sea ice concentration - American sector
Bulletin date: 2021-06-17
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-06-11:
| 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 |
1882 |
120 |
636 |
178 |
37 |
5 |
0 |
| OW |
0 |
345 |
54 |
498 |
222 |
28 |
4 |
0 |
| VODI |
0 |
225 |
18 |
368 |
549 |
148 |
30 |
0 |
| ODI |
0 |
146 |
15 |
328 |
735 |
427 |
62 |
2 |
| CDI |
0 |
269 |
21 |
229 |
994 |
3022 |
2132 |
0 |
| VCDI |
0 |
38 |
5 |
159 |
587 |
3327 |
12420 |
15601 |
|
...date precedes bulletin
|
Date: 2021-06-13:
| 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 |
2127 |
123 |
722 |
229 |
28 |
18 |
0 |
| OW |
0 |
366 |
38 |
445 |
246 |
50 |
17 |
0 |
| VODI |
0 |
239 |
16 |
420 |
567 |
172 |
42 |
0 |
| ODI |
0 |
144 |
10 |
289 |
795 |
394 |
55 |
2 |
| CDI |
0 |
272 |
19 |
249 |
1144 |
3363 |
2611 |
0 |
| VCDI |
0 |
44 |
7 |
154 |
492 |
2114 |
9726 |
18117 |
|
...date precedes bulletin
|
Date: 2021-06-15:
| 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 |
2944 |
136 |
733 |
213 |
27 |
6 |
0 |
| OW |
0 |
286 |
48 |
487 |
181 |
28 |
1 |
0 |
| VODI |
0 |
108 |
15 |
558 |
789 |
74 |
6 |
0 |
| ODI |
0 |
76 |
12 |
233 |
936 |
372 |
14 |
1 |
| CDI |
0 |
278 |
25 |
214 |
1320 |
3439 |
1639 |
1 |
| VCDI |
0 |
10 |
2 |
126 |
607 |
2568 |
9766 |
17587 |
|
...date precedes bulletin
|
Date: 2021-06-17:
| 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 |
3150 |
135 |
790 |
258 |
40 |
2 |
0 |
| OW |
0 |
329 |
34 |
471 |
307 |
25 |
0 |
0 |
| VODI |
0 |
137 |
14 |
458 |
1001 |
49 |
1 |
0 |
| ODI |
0 |
147 |
12 |
174 |
1029 |
236 |
6 |
0 |
| CDI |
0 |
397 |
23 |
241 |
1965 |
4720 |
99 |
1 |
| VCDI |
0 |
25 |
4 |
75 |
784 |
10949 |
8707 |
9071 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
3209 |
134 |
873 |
296 |
38 |
2 |
0 |
| OW |
0 |
283 |
38 |
448 |
414 |
26 |
0 |
0 |
| VODI |
0 |
131 |
16 |
407 |
923 |
46 |
2 |
0 |
| ODI |
0 |
138 |
7 |
172 |
1029 |
206 |
8 |
0 |
| CDI |
0 |
394 |
22 |
227 |
1887 |
4674 |
76 |
3 |
| VCDI |
0 |
30 |
5 |
82 |
795 |
11029 |
8727 |
9069 |
|
Date: 2021-06-19:
| 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 |
0 |
3420 |
140 |
904 |
239 |
16 |
0 |
0 |
| OW |
0 |
344 |
33 |
612 |
445 |
8 |
0 |
0 |
| VODI |
0 |
151 |
12 |
509 |
802 |
31 |
0 |
0 |
| ODI |
0 |
117 |
14 |
235 |
1218 |
272 |
12 |
0 |
| CDI |
0 |
219 |
17 |
152 |
1409 |
5114 |
384 |
0 |
| VCDI |
0 |
66 |
9 |
130 |
1493 |
14267 |
7954 |
5118 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
3498 |
138 |
1002 |
313 |
14 |
0 |
0 |
| OW |
0 |
264 |
33 |
581 |
479 |
11 |
0 |
0 |
| VODI |
0 |
141 |
17 |
445 |
751 |
25 |
0 |
0 |
| ODI |
0 |
91 |
10 |
216 |
1120 |
269 |
15 |
0 |
| CDI |
0 |
253 |
19 |
171 |
1457 |
5124 |
397 |
0 |
| VCDI |
0 |
70 |
8 |
127 |
1486 |
14265 |
7938 |
5118 |
|
Date: 2021-06-21:
| 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 |
90 |
4230 |
158 |
916 |
186 |
0 |
0 |
0 |
| OW |
5 |
169 |
49 |
647 |
217 |
0 |
0 |
0 |
| VODI |
0 |
68 |
10 |
621 |
763 |
2 |
0 |
0 |
| ODI |
0 |
75 |
10 |
205 |
2049 |
196 |
4 |
0 |
| CDI |
0 |
113 |
11 |
110 |
1224 |
5553 |
360 |
0 |
| VCDI |
0 |
8 |
3 |
36 |
3299 |
12948 |
6626 |
4905 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
88 |
3867 |
156 |
1127 |
382 |
0 |
0 |
0 |
| OW |
7 |
247 |
35 |
488 |
442 |
6 |
0 |
0 |
| VODI |
0 |
159 |
16 |
404 |
742 |
17 |
0 |
0 |
| ODI |
0 |
106 |
11 |
256 |
1162 |
237 |
17 |
0 |
| CDI |
0 |
235 |
16 |
166 |
1447 |
5252 |
501 |
0 |
| VCDI |
0 |
49 |
7 |
94 |
3563 |
13187 |
6472 |
4905 |
|
Date: 2021-06-23:
| 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 |
147 |
4556 |
156 |
1054 |
145 |
10 |
0 |
0 |
| OW |
5 |
248 |
45 |
672 |
273 |
5 |
0 |
0 |
| VODI |
0 |
105 |
15 |
532 |
757 |
16 |
0 |
0 |
| ODI |
0 |
113 |
15 |
252 |
1896 |
322 |
8 |
0 |
| CDI |
0 |
100 |
13 |
136 |
1994 |
4387 |
309 |
0 |
| VCDI |
0 |
0 |
1 |
57 |
1613 |
15718 |
6892 |
3299 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
145 |
4130 |
149 |
1366 |
373 |
12 |
0 |
0 |
| OW |
7 |
288 |
31 |
343 |
350 |
11 |
0 |
0 |
| VODI |
0 |
235 |
25 |
338 |
639 |
34 |
3 |
0 |
| ODI |
0 |
167 |
15 |
294 |
1164 |
364 |
31 |
0 |
| CDI |
0 |
271 |
19 |
274 |
2415 |
4334 |
447 |
0 |
| VCDI |
0 |
31 |
6 |
88 |
1737 |
15703 |
6728 |
3299 |
|
Date: 2021-06-25:
| 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 |
601 |
5066 |
147 |
709 |
114 |
5 |
0 |
0 |
| OW |
7 |
312 |
39 |
672 |
242 |
6 |
0 |
0 |
| VODI |
0 |
141 |
24 |
533 |
1018 |
33 |
3 |
0 |
| ODI |
0 |
88 |
16 |
276 |
2312 |
52 |
5 |
0 |
| CDI |
0 |
96 |
9 |
195 |
2370 |
2982 |
1402 |
0 |
| VCDI |
0 |
5 |
5 |
98 |
1756 |
12586 |
7600 |
4341 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
599 |
4434 |
142 |
1034 |
298 |
7 |
0 |
0 |
| OW |
9 |
468 |
25 |
276 |
214 |
15 |
0 |
0 |
| VODI |
0 |
318 |
26 |
364 |
512 |
52 |
15 |
0 |
| ODI |
0 |
172 |
22 |
290 |
1906 |
110 |
44 |
0 |
| CDI |
0 |
250 |
17 |
407 |
3060 |
2554 |
1197 |
0 |
| VCDI |
0 |
66 |
8 |
112 |
1822 |
12926 |
7754 |
4341 |
|
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