Validation of sea ice concentration - American sector
Bulletin date: 2023-07-06
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-06-30:
| 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 |
666 |
9762 |
503 |
840 |
301 |
34 |
0 |
0 |
| OW |
0 |
324 |
153 |
413 |
188 |
20 |
1 |
0 |
| VODI |
0 |
111 |
81 |
270 |
311 |
71 |
6 |
0 |
| ODI |
0 |
30 |
40 |
158 |
813 |
467 |
37 |
0 |
| CDI |
0 |
6 |
10 |
86 |
1402 |
5670 |
332 |
0 |
| VCDI |
0 |
0 |
2 |
2 |
280 |
11416 |
10268 |
792 |
|
...date precedes bulletin
|
Date: 2023-07-02:
| 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 |
1395 |
9614 |
427 |
763 |
197 |
32 |
0 |
0 |
| OW |
0 |
356 |
124 |
329 |
165 |
12 |
0 |
0 |
| VODI |
0 |
111 |
60 |
207 |
358 |
84 |
3 |
0 |
| ODI |
0 |
21 |
37 |
135 |
687 |
839 |
15 |
0 |
| CDI |
0 |
5 |
9 |
70 |
977 |
7334 |
756 |
0 |
| VCDI |
0 |
0 |
1 |
5 |
1425 |
12995 |
6247 |
71 |
|
...date precedes bulletin
|
Date: 2023-07-04:
| 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 |
2701 |
9264 |
323 |
513 |
159 |
21 |
0 |
0 |
| OW |
1 |
238 |
115 |
221 |
85 |
8 |
4 |
0 |
| VODI |
0 |
85 |
91 |
267 |
289 |
34 |
10 |
0 |
| ODI |
0 |
16 |
20 |
182 |
1493 |
542 |
36 |
0 |
| CDI |
0 |
0 |
0 |
57 |
1866 |
9912 |
989 |
0 |
| VCDI |
0 |
0 |
1 |
2 |
191 |
12894 |
3236 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-06:
| 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 |
2584 |
9669 |
371 |
549 |
140 |
29 |
0 |
0 |
| OW |
0 |
206 |
105 |
175 |
120 |
11 |
1 |
0 |
| VODI |
0 |
72 |
74 |
311 |
357 |
82 |
12 |
0 |
| ODI |
0 |
0 |
15 |
252 |
1635 |
775 |
52 |
0 |
| CDI |
0 |
0 |
0 |
92 |
2686 |
8629 |
1196 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
2504 |
9973 |
3183 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2584 |
9690 |
381 |
571 |
166 |
33 |
0 |
0 |
| OW |
0 |
197 |
103 |
173 |
97 |
9 |
1 |
0 |
| VODI |
0 |
60 |
65 |
293 |
382 |
85 |
12 |
0 |
| ODI |
0 |
0 |
16 |
255 |
1491 |
754 |
53 |
0 |
| CDI |
0 |
0 |
0 |
87 |
2793 |
8431 |
1252 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
2513 |
10187 |
3126 |
0 |
|
Date: 2023-07-08:
| 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 |
3838 |
8832 |
304 |
415 |
123 |
41 |
2 |
0 |
| OW |
1 |
252 |
107 |
172 |
104 |
19 |
4 |
0 |
| VODI |
0 |
93 |
89 |
355 |
538 |
115 |
23 |
0 |
| ODI |
0 |
5 |
22 |
288 |
1742 |
967 |
30 |
0 |
| CDI |
0 |
0 |
3 |
134 |
3530 |
8180 |
459 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
297 |
12267 |
2512 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3838 |
8857 |
317 |
441 |
140 |
44 |
2 |
0 |
| OW |
1 |
226 |
89 |
162 |
92 |
21 |
4 |
0 |
| VODI |
0 |
94 |
95 |
346 |
528 |
129 |
17 |
0 |
| ODI |
0 |
5 |
24 |
270 |
1638 |
938 |
34 |
0 |
| CDI |
0 |
0 |
0 |
145 |
3636 |
8126 |
497 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
300 |
12331 |
2476 |
0 |
|
Date: 2023-07-10:
| 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 |
5844 |
7392 |
248 |
304 |
91 |
42 |
0 |
0 |
| OW |
2 |
183 |
125 |
160 |
54 |
9 |
0 |
0 |
| VODI |
0 |
58 |
110 |
553 |
522 |
38 |
5 |
0 |
| ODI |
0 |
10 |
27 |
370 |
3988 |
517 |
43 |
0 |
| CDI |
0 |
3 |
11 |
52 |
5666 |
10432 |
418 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
499 |
6097 |
1988 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5844 |
7258 |
252 |
322 |
107 |
52 |
0 |
0 |
| OW |
2 |
230 |
84 |
207 |
188 |
27 |
0 |
0 |
| VODI |
0 |
130 |
112 |
368 |
728 |
184 |
26 |
0 |
| ODI |
0 |
23 |
55 |
398 |
2042 |
678 |
52 |
0 |
| CDI |
0 |
5 |
18 |
144 |
6572 |
5977 |
295 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
1183 |
10217 |
2081 |
0 |
|
Date: 2023-07-12:
| 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 |
6753 |
6727 |
216 |
307 |
134 |
17 |
0 |
0 |
| OW |
2 |
136 |
125 |
241 |
87 |
6 |
0 |
0 |
| VODI |
0 |
80 |
89 |
699 |
881 |
64 |
5 |
0 |
| ODI |
0 |
13 |
38 |
410 |
4065 |
896 |
28 |
0 |
| CDI |
0 |
18 |
18 |
31 |
5117 |
10696 |
430 |
0 |
| VCDI |
0 |
1 |
1 |
5 |
653 |
5973 |
904 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6753 |
6433 |
203 |
338 |
171 |
26 |
0 |
0 |
| OW |
2 |
258 |
90 |
242 |
263 |
32 |
0 |
0 |
| VODI |
0 |
183 |
88 |
400 |
1047 |
135 |
4 |
0 |
| ODI |
0 |
70 |
65 |
558 |
2104 |
716 |
28 |
0 |
| CDI |
0 |
30 |
40 |
150 |
6361 |
6779 |
199 |
0 |
| VCDI |
0 |
1 |
1 |
5 |
991 |
9964 |
1136 |
0 |
|
Date: 2023-07-14:
| 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 |
7146 |
6523 |
259 |
308 |
132 |
19 |
0 |
0 |
| OW |
0 |
169 |
158 |
371 |
116 |
22 |
0 |
0 |
| VODI |
0 |
123 |
100 |
728 |
1300 |
111 |
11 |
0 |
| ODI |
0 |
32 |
49 |
341 |
4621 |
568 |
47 |
0 |
| CDI |
0 |
15 |
11 |
27 |
7610 |
7963 |
329 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
288 |
5654 |
710 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7145 |
6196 |
239 |
350 |
187 |
60 |
0 |
0 |
| OW |
1 |
314 |
99 |
287 |
311 |
52 |
0 |
0 |
| VODI |
0 |
232 |
127 |
503 |
1192 |
119 |
10 |
0 |
| ODI |
0 |
98 |
105 |
474 |
2359 |
303 |
41 |
0 |
| CDI |
0 |
22 |
7 |
161 |
8708 |
4745 |
254 |
0 |
| VCDI |
0 |
4 |
0 |
1 |
1310 |
9058 |
792 |
0 |
|
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