Validation of sea ice concentration - American sector
Bulletin date: 2020-05-21
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2020-05-15:
| 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 |
172 |
13 |
46 |
136 |
32 |
1 |
0 |
| OW |
0 |
53 |
17 |
130 |
282 |
33 |
4 |
0 |
| VODI |
0 |
57 |
12 |
154 |
501 |
109 |
32 |
0 |
| ODI |
0 |
18 |
4 |
122 |
422 |
238 |
187 |
68 |
| CDI |
0 |
3 |
3 |
128 |
702 |
757 |
324 |
160 |
| VCDI |
0 |
0 |
0 |
35 |
791 |
2890 |
14732 |
22498 |
|
...date precedes bulletin
|
Date: 2020-05-17:
| 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 |
150 |
17 |
106 |
292 |
20 |
0 |
0 |
| OW |
0 |
75 |
15 |
161 |
297 |
33 |
5 |
0 |
| VODI |
0 |
93 |
18 |
132 |
502 |
115 |
50 |
0 |
| ODI |
0 |
30 |
5 |
120 |
417 |
266 |
268 |
0 |
| CDI |
0 |
13 |
6 |
152 |
857 |
1014 |
548 |
16 |
| VCDI |
0 |
0 |
0 |
59 |
680 |
2796 |
18124 |
18414 |
|
...date precedes bulletin
|
Date: 2020-05-19:
| 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 |
360 |
46 |
370 |
212 |
14 |
0 |
0 |
| OW |
0 |
120 |
8 |
315 |
305 |
20 |
2 |
0 |
| VODI |
0 |
104 |
9 |
154 |
569 |
116 |
8 |
0 |
| ODI |
0 |
36 |
3 |
96 |
540 |
323 |
35 |
0 |
| CDI |
0 |
17 |
1 |
102 |
1008 |
1743 |
341 |
0 |
| VCDI |
0 |
0 |
0 |
22 |
628 |
4586 |
16027 |
17626 |
|
...date precedes bulletin
|
Date: 2020-05-21:
| 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 |
0 |
547 |
44 |
350 |
169 |
12 |
0 |
0 |
| OW |
0 |
220 |
22 |
338 |
218 |
60 |
3 |
0 |
| VODI |
0 |
94 |
12 |
281 |
472 |
226 |
22 |
1 |
| ODI |
0 |
22 |
3 |
140 |
477 |
304 |
96 |
2 |
| CDI |
0 |
8 |
5 |
136 |
1221 |
1476 |
566 |
3 |
| VCDI |
0 |
0 |
1 |
27 |
358 |
4469 |
19618 |
13843 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
718 |
57 |
461 |
213 |
23 |
1 |
0 |
| OW |
0 |
107 |
12 |
298 |
206 |
61 |
1 |
0 |
| VODI |
0 |
42 |
10 |
239 |
461 |
253 |
25 |
0 |
| ODI |
0 |
18 |
3 |
122 |
521 |
309 |
96 |
3 |
| CDI |
0 |
5 |
4 |
131 |
1199 |
1469 |
539 |
3 |
| VCDI |
0 |
1 |
1 |
21 |
315 |
4432 |
19643 |
13843 |
|
Date: 2020-05-23:
| 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 |
0 |
707 |
69 |
476 |
125 |
12 |
0 |
0 |
| OW |
0 |
249 |
24 |
381 |
203 |
85 |
15 |
0 |
| VODI |
0 |
92 |
8 |
255 |
461 |
246 |
18 |
0 |
| ODI |
0 |
32 |
5 |
145 |
442 |
337 |
131 |
3 |
| CDI |
0 |
21 |
7 |
178 |
1151 |
1462 |
904 |
20 |
| VCDI |
0 |
0 |
0 |
28 |
238 |
4530 |
20744 |
12062 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
907 |
83 |
660 |
181 |
46 |
11 |
0 |
| OW |
0 |
98 |
13 |
267 |
208 |
82 |
3 |
0 |
| VODI |
0 |
54 |
6 |
201 |
414 |
267 |
17 |
0 |
| ODI |
0 |
24 |
5 |
138 |
503 |
348 |
116 |
1 |
| CDI |
0 |
18 |
6 |
176 |
1098 |
1395 |
921 |
19 |
| VCDI |
0 |
0 |
0 |
21 |
216 |
4534 |
20744 |
12065 |
|
Date: 2020-05-25:
| 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 |
0 |
914 |
76 |
393 |
106 |
1 |
0 |
0 |
| OW |
0 |
174 |
29 |
487 |
74 |
8 |
0 |
0 |
| VODI |
0 |
98 |
4 |
365 |
758 |
96 |
30 |
0 |
| ODI |
0 |
22 |
7 |
177 |
1015 |
609 |
29 |
0 |
| CDI |
0 |
2 |
0 |
80 |
675 |
2664 |
807 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
75 |
4404 |
16894 |
14787 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
963 |
95 |
644 |
202 |
45 |
24 |
0 |
| OW |
0 |
91 |
8 |
269 |
237 |
120 |
18 |
0 |
| VODI |
0 |
94 |
4 |
193 |
507 |
331 |
18 |
0 |
| ODI |
0 |
41 |
4 |
170 |
675 |
483 |
90 |
0 |
| CDI |
0 |
20 |
5 |
206 |
926 |
2234 |
2069 |
7 |
| VCDI |
0 |
1 |
0 |
26 |
156 |
4569 |
15541 |
14780 |
|
Date: 2020-05-27:
| 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 |
0 |
1234 |
109 |
674 |
109 |
3 |
0 |
0 |
| OW |
0 |
138 |
19 |
437 |
313 |
17 |
1 |
0 |
| VODI |
0 |
64 |
5 |
198 |
836 |
230 |
63 |
0 |
| ODI |
0 |
16 |
6 |
154 |
771 |
509 |
117 |
0 |
| CDI |
0 |
10 |
3 |
86 |
750 |
2520 |
2092 |
1 |
| VCDI |
0 |
0 |
1 |
7 |
72 |
2753 |
14348 |
17200 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1175 |
111 |
674 |
224 |
70 |
30 |
0 |
| OW |
0 |
118 |
9 |
250 |
254 |
154 |
34 |
0 |
| VODI |
0 |
107 |
8 |
229 |
451 |
378 |
90 |
0 |
| ODI |
0 |
42 |
8 |
190 |
706 |
436 |
220 |
0 |
| CDI |
0 |
18 |
6 |
187 |
1088 |
2353 |
3245 |
10 |
| VCDI |
0 |
2 |
1 |
26 |
128 |
2641 |
13002 |
17191 |
|
Date: 2020-05-29:
| 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 |
0 |
1540 |
115 |
791 |
189 |
5 |
0 |
0 |
| OW |
0 |
149 |
14 |
284 |
550 |
44 |
8 |
0 |
| VODI |
0 |
56 |
15 |
160 |
912 |
290 |
28 |
0 |
| ODI |
0 |
5 |
6 |
114 |
651 |
606 |
107 |
0 |
| CDI |
0 |
11 |
1 |
48 |
649 |
2792 |
2486 |
0 |
| VCDI |
0 |
4 |
0 |
6 |
33 |
1423 |
11060 |
20714 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1475 |
115 |
668 |
334 |
105 |
17 |
0 |
| OW |
0 |
137 |
8 |
213 |
353 |
140 |
55 |
0 |
| VODI |
0 |
110 |
15 |
268 |
526 |
294 |
143 |
0 |
| ODI |
0 |
23 |
10 |
141 |
693 |
397 |
361 |
0 |
| CDI |
0 |
14 |
3 |
91 |
929 |
2943 |
3278 |
14 |
| VCDI |
0 |
6 |
0 |
22 |
149 |
1281 |
9835 |
20700 |
|
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