Validation of sea ice concentration - American sector
Bulletin date: 2024-05-30
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-05-24:
| 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 |
911 |
21 |
22 |
9 |
5 |
0 |
0 |
| OW |
0 |
533 |
51 |
93 |
21 |
5 |
1 |
0 |
| VODI |
0 |
328 |
99 |
201 |
71 |
18 |
7 |
0 |
| ODI |
0 |
190 |
77 |
212 |
218 |
72 |
18 |
0 |
| CDI |
0 |
288 |
141 |
562 |
719 |
1161 |
786 |
3 |
| VCDI |
0 |
154 |
67 |
200 |
381 |
2079 |
25361 |
10781 |
|
...date precedes bulletin
|
Date: 2024-05-26:
| 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 |
0 |
951 |
18 |
19 |
9 |
2 |
0 |
0 |
| OW |
0 |
498 |
55 |
51 |
14 |
2 |
2 |
0 |
| VODI |
0 |
394 |
90 |
219 |
87 |
12 |
5 |
0 |
| ODI |
0 |
237 |
82 |
280 |
256 |
84 |
40 |
0 |
| CDI |
0 |
335 |
147 |
492 |
846 |
1225 |
541 |
0 |
| VCDI |
0 |
172 |
64 |
239 |
482 |
3185 |
26685 |
8046 |
|
...date precedes bulletin
|
Date: 2024-05-28:
| 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 |
0 |
1316 |
14 |
21 |
7 |
1 |
0 |
0 |
| OW |
0 |
766 |
77 |
71 |
13 |
8 |
1 |
0 |
| VODI |
0 |
416 |
179 |
498 |
194 |
29 |
6 |
0 |
| ODI |
0 |
174 |
71 |
304 |
434 |
117 |
29 |
0 |
| CDI |
0 |
252 |
89 |
348 |
731 |
1469 |
717 |
2 |
| VCDI |
0 |
32 |
39 |
137 |
320 |
3464 |
25758 |
7762 |
|
...date precedes bulletin
|
Date: 2024-05-30:
| 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 |
0 |
1313 |
22 |
16 |
4 |
1 |
0 |
0 |
| OW |
0 |
730 |
89 |
100 |
19 |
8 |
3 |
0 |
| VODI |
0 |
515 |
195 |
446 |
174 |
13 |
12 |
0 |
| ODI |
0 |
204 |
69 |
286 |
420 |
145 |
53 |
0 |
| CDI |
0 |
298 |
113 |
371 |
826 |
1493 |
993 |
0 |
| VCDI |
0 |
26 |
40 |
142 |
398 |
3943 |
22155 |
10231 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1360 |
26 |
18 |
4 |
1 |
0 |
0 |
| OW |
0 |
647 |
92 |
99 |
25 |
7 |
5 |
0 |
| VODI |
0 |
563 |
186 |
420 |
163 |
20 |
10 |
0 |
| ODI |
0 |
186 |
72 |
305 |
381 |
95 |
67 |
0 |
| CDI |
0 |
312 |
116 |
390 |
897 |
1615 |
975 |
0 |
| VCDI |
0 |
18 |
36 |
129 |
371 |
3865 |
22159 |
10231 |
|
Date: 2024-06-01:
| 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 |
44 |
1193 |
8 |
9 |
5 |
0 |
0 |
0 |
| OW |
0 |
723 |
121 |
121 |
18 |
3 |
2 |
0 |
| VODI |
0 |
614 |
177 |
403 |
147 |
51 |
6 |
0 |
| ODI |
0 |
289 |
81 |
309 |
434 |
146 |
32 |
0 |
| CDI |
0 |
448 |
104 |
336 |
864 |
1711 |
945 |
1 |
| VCDI |
0 |
63 |
35 |
174 |
385 |
4049 |
24630 |
7185 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
44 |
1250 |
12 |
12 |
3 |
0 |
0 |
0 |
| OW |
0 |
670 |
122 |
144 |
20 |
7 |
3 |
0 |
| VODI |
0 |
625 |
162 |
356 |
130 |
53 |
11 |
0 |
| ODI |
0 |
274 |
88 |
320 |
383 |
133 |
42 |
0 |
| CDI |
0 |
450 |
110 |
343 |
935 |
1720 |
1060 |
0 |
| VCDI |
0 |
61 |
32 |
177 |
382 |
4047 |
24499 |
7186 |
|
Date: 2024-06-03:
| 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 |
242 |
1239 |
16 |
6 |
4 |
1 |
0 |
0 |
| OW |
0 |
1478 |
189 |
178 |
36 |
0 |
0 |
0 |
| VODI |
0 |
689 |
194 |
458 |
280 |
20 |
0 |
0 |
| ODI |
0 |
145 |
79 |
261 |
852 |
291 |
12 |
0 |
| CDI |
0 |
87 |
75 |
240 |
801 |
2544 |
655 |
0 |
| VCDI |
0 |
13 |
8 |
106 |
344 |
2154 |
22986 |
9183 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
242 |
1098 |
7 |
9 |
3 |
1 |
0 |
0 |
| OW |
0 |
816 |
130 |
140 |
48 |
0 |
0 |
0 |
| VODI |
0 |
736 |
141 |
244 |
203 |
17 |
3 |
0 |
| ODI |
0 |
380 |
96 |
272 |
394 |
130 |
46 |
0 |
| CDI |
0 |
531 |
122 |
352 |
1157 |
1975 |
1704 |
0 |
| VCDI |
0 |
90 |
65 |
232 |
512 |
2887 |
21900 |
9183 |
|
Date: 2024-06-05:
| 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 |
296 |
1534 |
65 |
55 |
5 |
0 |
0 |
0 |
| OW |
0 |
1415 |
142 |
123 |
31 |
9 |
0 |
0 |
| VODI |
2 |
802 |
183 |
413 |
296 |
37 |
12 |
0 |
| ODI |
0 |
187 |
59 |
332 |
704 |
145 |
23 |
0 |
| CDI |
0 |
149 |
71 |
279 |
1267 |
2012 |
822 |
0 |
| VCDI |
0 |
583 |
58 |
249 |
465 |
5662 |
24262 |
3117 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
296 |
1156 |
24 |
20 |
13 |
0 |
0 |
0 |
| OW |
1 |
911 |
131 |
129 |
53 |
1 |
0 |
0 |
| VODI |
1 |
856 |
140 |
238 |
227 |
14 |
14 |
0 |
| ODI |
0 |
413 |
80 |
275 |
369 |
107 |
62 |
0 |
| CDI |
0 |
565 |
103 |
449 |
1415 |
1819 |
2749 |
50 |
| VCDI |
0 |
769 |
100 |
340 |
691 |
5924 |
22294 |
3067 |
|
Date: 2024-06-07:
| 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 |
548 |
1938 |
57 |
30 |
0 |
0 |
0 |
0 |
| OW |
0 |
1430 |
98 |
117 |
33 |
1 |
0 |
0 |
| VODI |
0 |
740 |
166 |
428 |
303 |
58 |
4 |
0 |
| ODI |
0 |
295 |
85 |
323 |
440 |
172 |
52 |
0 |
| CDI |
0 |
305 |
81 |
331 |
1475 |
1485 |
842 |
0 |
| VCDI |
0 |
209 |
78 |
276 |
966 |
5694 |
20545 |
6261 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
542 |
1151 |
31 |
19 |
1 |
0 |
0 |
0 |
| OW |
6 |
1026 |
76 |
81 |
32 |
2 |
2 |
0 |
| VODI |
0 |
940 |
126 |
272 |
200 |
31 |
41 |
0 |
| ODI |
0 |
444 |
91 |
272 |
257 |
110 |
161 |
2 |
| CDI |
0 |
682 |
135 |
573 |
1623 |
1304 |
1955 |
146 |
| VCDI |
0 |
674 |
106 |
288 |
1104 |
5963 |
19284 |
6113 |
|
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