Validation of sea ice concentration - American sector
Bulletin date: 2024-06-06
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-05-31:
| 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 |
42 |
1240 |
14 |
8 |
3 |
0 |
0 |
0 |
| OW |
0 |
722 |
95 |
92 |
12 |
6 |
3 |
0 |
| VODI |
0 |
579 |
170 |
468 |
148 |
18 |
14 |
0 |
| ODI |
0 |
245 |
72 |
302 |
455 |
120 |
44 |
0 |
| CDI |
0 |
350 |
119 |
374 |
865 |
1623 |
845 |
1 |
| VCDI |
0 |
184 |
64 |
271 |
569 |
3780 |
26596 |
5353 |
|
...date precedes bulletin
|
Date: 2024-06-02:
| 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 |
57 |
1133 |
11 |
7 |
2 |
1 |
0 |
0 |
| OW |
0 |
778 |
118 |
146 |
22 |
4 |
2 |
0 |
| VODI |
0 |
725 |
162 |
335 |
175 |
33 |
7 |
0 |
| ODI |
0 |
345 |
93 |
288 |
390 |
135 |
35 |
0 |
| CDI |
0 |
543 |
124 |
359 |
1007 |
1789 |
1172 |
2 |
| VCDI |
0 |
68 |
50 |
203 |
499 |
2978 |
22961 |
9107 |
|
...date precedes bulletin
|
Date: 2024-06-04:
| 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 |
263 |
1353 |
21 |
33 |
7 |
0 |
0 |
0 |
| OW |
0 |
1490 |
164 |
138 |
27 |
7 |
0 |
0 |
| VODI |
2 |
828 |
192 |
508 |
144 |
37 |
1 |
0 |
| ODI |
0 |
180 |
68 |
367 |
694 |
162 |
24 |
0 |
| CDI |
0 |
132 |
75 |
298 |
1098 |
2020 |
1047 |
0 |
| VCDI |
0 |
64 |
51 |
195 |
511 |
5556 |
23104 |
5005 |
|
...date precedes bulletin
|
Date: 2024-06-06:
| 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 |
364 |
1789 |
74 |
56 |
0 |
0 |
0 |
0 |
| OW |
0 |
1407 |
112 |
107 |
46 |
0 |
0 |
0 |
| VODI |
2 |
792 |
171 |
366 |
354 |
37 |
6 |
0 |
| ODI |
0 |
223 |
71 |
340 |
571 |
170 |
24 |
0 |
| CDI |
0 |
213 |
83 |
318 |
1499 |
1515 |
926 |
2 |
| VCDI |
0 |
109 |
56 |
226 |
598 |
5814 |
24270 |
3155 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
364 |
1826 |
68 |
52 |
0 |
0 |
0 |
0 |
| OW |
0 |
1359 |
119 |
108 |
47 |
1 |
0 |
0 |
| VODI |
2 |
806 |
165 |
382 |
348 |
48 |
6 |
0 |
| ODI |
0 |
215 |
73 |
298 |
544 |
168 |
31 |
0 |
| CDI |
0 |
216 |
84 |
352 |
1542 |
1477 |
1049 |
29 |
| VCDI |
0 |
111 |
58 |
221 |
587 |
5842 |
24140 |
3128 |
|
Date: 2024-06-08:
| 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 |
744 |
2014 |
58 |
27 |
1 |
0 |
0 |
0 |
| OW |
4 |
1390 |
98 |
146 |
40 |
3 |
0 |
0 |
| VODI |
0 |
714 |
155 |
435 |
248 |
65 |
2 |
0 |
| ODI |
0 |
317 |
84 |
330 |
359 |
167 |
56 |
0 |
| CDI |
0 |
364 |
74 |
392 |
1462 |
1603 |
1067 |
0 |
| VCDI |
0 |
190 |
85 |
255 |
1146 |
5304 |
22446 |
4021 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
746 |
2004 |
64 |
27 |
2 |
0 |
0 |
0 |
| OW |
2 |
1396 |
85 |
176 |
51 |
1 |
0 |
0 |
| VODI |
0 |
703 |
155 |
407 |
239 |
73 |
10 |
0 |
| ODI |
0 |
318 |
84 |
300 |
338 |
152 |
53 |
0 |
| CDI |
0 |
371 |
81 |
414 |
1494 |
1743 |
1087 |
0 |
| VCDI |
0 |
197 |
85 |
261 |
1132 |
5173 |
22421 |
4021 |
|
Date: 2024-06-10:
| 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 |
1169 |
2366 |
40 |
26 |
4 |
1 |
0 |
0 |
| OW |
0 |
1727 |
168 |
179 |
27 |
2 |
2 |
0 |
| VODI |
0 |
428 |
195 |
587 |
275 |
18 |
3 |
0 |
| ODI |
0 |
218 |
57 |
289 |
751 |
173 |
53 |
0 |
| CDI |
0 |
176 |
77 |
273 |
1163 |
3319 |
978 |
0 |
| VCDI |
0 |
1 |
9 |
82 |
190 |
4124 |
23827 |
2889 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1169 |
1949 |
36 |
24 |
4 |
0 |
0 |
0 |
| OW |
0 |
1330 |
88 |
168 |
62 |
8 |
3 |
0 |
| VODI |
0 |
698 |
158 |
376 |
193 |
53 |
68 |
0 |
| ODI |
0 |
359 |
107 |
301 |
266 |
113 |
128 |
0 |
| CDI |
0 |
444 |
99 |
318 |
1221 |
2099 |
1622 |
0 |
| VCDI |
0 |
136 |
58 |
249 |
664 |
5364 |
23042 |
2889 |
|
Date: 2024-06-12:
| 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 |
1150 |
2399 |
47 |
21 |
1 |
0 |
0 |
0 |
| OW |
0 |
1589 |
204 |
249 |
34 |
11 |
0 |
0 |
| VODI |
1 |
618 |
189 |
643 |
244 |
57 |
11 |
0 |
| ODI |
0 |
239 |
55 |
296 |
662 |
247 |
84 |
0 |
| CDI |
0 |
265 |
107 |
403 |
1293 |
3055 |
1220 |
0 |
| VCDI |
0 |
2 |
7 |
47 |
310 |
5819 |
20544 |
3743 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1147 |
1910 |
41 |
31 |
6 |
10 |
0 |
0 |
| OW |
3 |
1320 |
140 |
239 |
52 |
13 |
3 |
0 |
| VODI |
1 |
811 |
156 |
408 |
193 |
84 |
31 |
0 |
| ODI |
0 |
477 |
101 |
328 |
258 |
149 |
112 |
0 |
| CDI |
0 |
569 |
137 |
475 |
1297 |
2146 |
1742 |
6 |
| VCDI |
0 |
25 |
34 |
178 |
738 |
6787 |
19971 |
3737 |
|
Date: 2024-06-14:
| 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 |
1504 |
2206 |
32 |
18 |
3 |
0 |
0 |
0 |
| OW |
17 |
1546 |
177 |
256 |
66 |
22 |
3 |
0 |
| VODI |
0 |
804 |
178 |
527 |
257 |
134 |
16 |
1 |
| ODI |
0 |
295 |
68 |
267 |
499 |
334 |
126 |
6 |
| CDI |
0 |
321 |
136 |
405 |
1156 |
2543 |
1214 |
21 |
| VCDI |
0 |
31 |
30 |
106 |
474 |
7210 |
19965 |
2892 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1484 |
1724 |
22 |
18 |
13 |
12 |
0 |
0 |
| OW |
37 |
1225 |
111 |
235 |
85 |
50 |
6 |
0 |
| VODI |
0 |
1015 |
164 |
300 |
135 |
114 |
56 |
0 |
| ODI |
0 |
507 |
94 |
286 |
246 |
184 |
83 |
1 |
| CDI |
0 |
679 |
173 |
573 |
1158 |
2130 |
1643 |
16 |
| VCDI |
0 |
53 |
57 |
167 |
818 |
7753 |
19536 |
2903 |
|
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