Validation of sea ice concentration - American sector
Bulletin date: 2021-07-01
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2021-06-27:
| 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 |
722 |
5486 |
136 |
700 |
146 |
33 |
0 |
0 |
| OW |
5 |
349 |
37 |
577 |
288 |
18 |
0 |
0 |
| VODI |
0 |
183 |
25 |
521 |
1138 |
114 |
0 |
0 |
| ODI |
0 |
104 |
14 |
295 |
2125 |
188 |
13 |
0 |
| CDI |
0 |
98 |
11 |
265 |
1897 |
3374 |
1454 |
0 |
| VCDI |
0 |
24 |
9 |
120 |
1716 |
9432 |
8897 |
5352 |
|
...date precedes bulletin
|
Date: 2021-06-29:
| 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 |
721 |
6428 |
127 |
485 |
102 |
23 |
0 |
0 |
| OW |
0 |
278 |
61 |
622 |
85 |
12 |
0 |
0 |
| VODI |
0 |
99 |
20 |
1161 |
846 |
32 |
5 |
0 |
| ODI |
0 |
35 |
9 |
287 |
2731 |
250 |
28 |
0 |
| CDI |
0 |
52 |
8 |
271 |
1583 |
4153 |
702 |
0 |
| VCDI |
0 |
43 |
5 |
90 |
1327 |
9207 |
9206 |
4772 |
|
...date precedes bulletin
|
Date: 2021-07-01:
| 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 |
1354 |
6179 |
122 |
413 |
165 |
0 |
0 |
0 |
| OW |
0 |
459 |
63 |
605 |
283 |
1 |
0 |
0 |
| VODI |
0 |
143 |
29 |
733 |
1520 |
68 |
3 |
0 |
| ODI |
0 |
19 |
8 |
177 |
2039 |
382 |
21 |
0 |
| CDI |
0 |
14 |
6 |
224 |
933 |
6393 |
781 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
714 |
8972 |
8880 |
4163 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1354 |
6287 |
132 |
544 |
248 |
1 |
0 |
0 |
| OW |
0 |
327 |
53 |
481 |
378 |
7 |
0 |
0 |
| VODI |
0 |
165 |
28 |
688 |
1279 |
75 |
3 |
0 |
| ODI |
0 |
23 |
8 |
215 |
2001 |
345 |
39 |
0 |
| CDI |
0 |
12 |
7 |
224 |
1029 |
6341 |
826 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
719 |
9047 |
8817 |
4163 |
|
Date: 2021-07-03:
| 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 |
1687 |
6361 |
102 |
602 |
101 |
29 |
0 |
0 |
| OW |
3 |
579 |
71 |
877 |
225 |
24 |
1 |
0 |
| VODI |
0 |
208 |
31 |
1050 |
955 |
170 |
6 |
0 |
| ODI |
0 |
27 |
6 |
303 |
1219 |
483 |
49 |
0 |
| CDI |
0 |
56 |
8 |
204 |
607 |
4659 |
3055 |
0 |
| VCDI |
0 |
4 |
1 |
20 |
678 |
7923 |
10933 |
2549 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1687 |
6439 |
112 |
868 |
128 |
32 |
0 |
0 |
| OW |
3 |
513 |
59 |
840 |
177 |
34 |
1 |
0 |
| VODI |
0 |
203 |
33 |
761 |
930 |
151 |
11 |
0 |
| ODI |
0 |
19 |
7 |
382 |
1188 |
427 |
62 |
0 |
| CDI |
0 |
61 |
8 |
180 |
675 |
4726 |
3016 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
687 |
7918 |
10954 |
2549 |
|
Date: 2021-07-05:
| 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 |
1731 |
7617 |
110 |
588 |
73 |
24 |
0 |
0 |
| OW |
2 |
461 |
82 |
662 |
123 |
13 |
0 |
0 |
| VODI |
0 |
63 |
20 |
1058 |
818 |
54 |
0 |
0 |
| ODI |
0 |
42 |
5 |
208 |
1856 |
311 |
0 |
0 |
| CDI |
0 |
22 |
8 |
111 |
636 |
8079 |
1197 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
181 |
7235 |
9616 |
2860 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1731 |
7196 |
125 |
901 |
290 |
34 |
0 |
0 |
| OW |
2 |
570 |
33 |
410 |
535 |
53 |
0 |
0 |
| VODI |
0 |
304 |
41 |
595 |
787 |
218 |
0 |
0 |
| ODI |
0 |
51 |
12 |
474 |
839 |
433 |
9 |
0 |
| CDI |
0 |
83 |
13 |
218 |
992 |
6423 |
1193 |
0 |
| VCDI |
0 |
1 |
1 |
29 |
244 |
8555 |
9611 |
2860 |
|
Date: 2021-07-07:
| 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 |
2699 |
7845 |
127 |
623 |
82 |
2 |
0 |
0 |
| OW |
21 |
442 |
53 |
805 |
143 |
15 |
0 |
0 |
| VODI |
1 |
88 |
18 |
826 |
806 |
86 |
0 |
0 |
| ODI |
0 |
52 |
4 |
183 |
1331 |
220 |
0 |
0 |
| CDI |
0 |
54 |
6 |
107 |
1168 |
8906 |
106 |
0 |
| VCDI |
0 |
6 |
0 |
9 |
166 |
12539 |
6209 |
118 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2716 |
7585 |
116 |
816 |
156 |
14 |
0 |
0 |
| OW |
5 |
474 |
46 |
589 |
329 |
91 |
0 |
0 |
| VODI |
0 |
234 |
25 |
647 |
641 |
211 |
0 |
0 |
| ODI |
0 |
72 |
11 |
249 |
896 |
206 |
0 |
0 |
| CDI |
0 |
114 |
9 |
220 |
1466 |
7845 |
104 |
0 |
| VCDI |
0 |
8 |
1 |
32 |
208 |
13401 |
6211 |
118 |
|
Date: 2021-07-09:
| 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 |
2728 |
8551 |
131 |
616 |
92 |
1 |
0 |
0 |
| OW |
1 |
556 |
58 |
625 |
170 |
19 |
0 |
0 |
| VODI |
0 |
116 |
25 |
608 |
596 |
109 |
0 |
0 |
| ODI |
0 |
85 |
7 |
187 |
1357 |
466 |
0 |
0 |
| CDI |
0 |
56 |
4 |
83 |
1603 |
8312 |
569 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
164 |
15653 |
2317 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2728 |
8301 |
119 |
673 |
240 |
38 |
0 |
0 |
| OW |
1 |
508 |
59 |
499 |
257 |
158 |
0 |
0 |
| VODI |
0 |
325 |
25 |
465 |
419 |
229 |
0 |
0 |
| ODI |
0 |
96 |
12 |
284 |
896 |
272 |
0 |
0 |
| CDI |
0 |
134 |
10 |
198 |
1933 |
7429 |
569 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
237 |
16434 |
2317 |
0 |
|
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