Validation of sea ice concentration - American sector
Bulletin date: 2021-12-09
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-12-03:
| 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 |
3467 |
3623 |
29 |
136 |
4 |
0 |
0 |
0 |
| OW |
29 |
213 |
17 |
76 |
39 |
0 |
0 |
0 |
| VODI |
0 |
93 |
9 |
187 |
60 |
0 |
0 |
0 |
| ODI |
0 |
38 |
5 |
118 |
151 |
27 |
0 |
0 |
| CDI |
0 |
8 |
2 |
37 |
219 |
90 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
817 |
3834 |
6248 |
26289 |
|
...date precedes bulletin
|
Date: 2021-12-05:
| 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 |
2100 |
4317 |
57 |
201 |
20 |
0 |
0 |
0 |
| OW |
0 |
131 |
19 |
215 |
105 |
0 |
0 |
0 |
| VODI |
0 |
34 |
1 |
120 |
252 |
31 |
0 |
0 |
| ODI |
0 |
7 |
2 |
36 |
253 |
62 |
0 |
0 |
| CDI |
0 |
15 |
6 |
32 |
474 |
180 |
16 |
11 |
| VCDI |
0 |
0 |
0 |
77 |
1106 |
3318 |
7547 |
25121 |
|
...date precedes bulletin
|
Date: 2021-12-07:
| 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 |
945 |
4324 |
69 |
447 |
219 |
0 |
0 |
0 |
| OW |
0 |
224 |
9 |
159 |
141 |
0 |
0 |
0 |
| VODI |
0 |
33 |
6 |
77 |
295 |
12 |
1 |
0 |
| ODI |
0 |
1 |
1 |
25 |
305 |
239 |
2 |
0 |
| CDI |
0 |
0 |
0 |
24 |
307 |
495 |
71 |
4 |
| VCDI |
0 |
0 |
0 |
42 |
904 |
4050 |
7406 |
25029 |
|
...date precedes bulletin
|
Date: 2021-12-09:
| 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 |
1165 |
3482 |
60 |
241 |
283 |
50 |
0 |
0 |
| OW |
2 |
297 |
18 |
198 |
221 |
43 |
0 |
0 |
| VODI |
0 |
155 |
14 |
109 |
203 |
70 |
0 |
0 |
| ODI |
0 |
4 |
0 |
49 |
228 |
90 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
263 |
341 |
5 |
4 |
| VCDI |
0 |
0 |
0 |
17 |
416 |
3825 |
7527 |
26470 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1163 |
3519 |
67 |
293 |
291 |
11 |
0 |
0 |
| OW |
4 |
247 |
10 |
160 |
258 |
73 |
0 |
0 |
| VODI |
0 |
170 |
15 |
115 |
185 |
82 |
0 |
0 |
| ODI |
0 |
2 |
0 |
33 |
221 |
108 |
0 |
0 |
| CDI |
0 |
0 |
0 |
21 |
232 |
306 |
14 |
3 |
| VCDI |
0 |
0 |
0 |
8 |
427 |
3839 |
7518 |
26471 |
|
Date: 2021-12-11:
| 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 |
798 |
3521 |
45 |
219 |
79 |
26 |
0 |
0 |
| OW |
0 |
388 |
21 |
183 |
201 |
134 |
0 |
0 |
| VODI |
0 |
254 |
18 |
173 |
210 |
92 |
0 |
0 |
| ODI |
0 |
57 |
12 |
105 |
265 |
82 |
0 |
0 |
| CDI |
0 |
3 |
1 |
74 |
357 |
175 |
3 |
1 |
| VCDI |
0 |
0 |
0 |
25 |
433 |
3230 |
6761 |
27920 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
798 |
3612 |
50 |
262 |
122 |
12 |
0 |
0 |
| OW |
0 |
302 |
16 |
137 |
163 |
88 |
0 |
0 |
| VODI |
0 |
252 |
16 |
178 |
208 |
153 |
0 |
0 |
| ODI |
0 |
55 |
15 |
117 |
281 |
86 |
0 |
0 |
| CDI |
0 |
2 |
0 |
64 |
311 |
174 |
4 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
460 |
3226 |
6760 |
27921 |
|
Date: 2021-12-13:
| 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 |
651 |
3343 |
29 |
156 |
73 |
8 |
0 |
0 |
| OW |
0 |
307 |
36 |
225 |
88 |
12 |
0 |
0 |
| VODI |
0 |
91 |
18 |
307 |
173 |
42 |
0 |
0 |
| ODI |
0 |
29 |
7 |
85 |
395 |
254 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
181 |
592 |
275 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
262 |
1988 |
6172 |
30044 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
651 |
3192 |
41 |
279 |
246 |
47 |
0 |
0 |
| OW |
0 |
220 |
14 |
130 |
169 |
130 |
3 |
0 |
| VODI |
0 |
252 |
18 |
152 |
105 |
260 |
93 |
0 |
| ODI |
0 |
99 |
14 |
133 |
139 |
163 |
60 |
0 |
| CDI |
0 |
7 |
3 |
84 |
190 |
231 |
149 |
0 |
| VCDI |
0 |
0 |
0 |
18 |
323 |
2065 |
6142 |
30044 |
|
Date: 2021-12-15:
| 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 |
322 |
3097 |
42 |
138 |
168 |
25 |
0 |
0 |
| OW |
0 |
463 |
28 |
166 |
80 |
54 |
0 |
0 |
| VODI |
0 |
140 |
18 |
265 |
109 |
85 |
5 |
0 |
| ODI |
0 |
61 |
9 |
173 |
277 |
98 |
10 |
0 |
| CDI |
0 |
13 |
6 |
38 |
193 |
473 |
240 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
107 |
2460 |
5552 |
30950 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
322 |
3034 |
46 |
205 |
219 |
67 |
0 |
0 |
| OW |
0 |
330 |
15 |
147 |
176 |
105 |
7 |
0 |
| VODI |
0 |
243 |
18 |
171 |
93 |
212 |
224 |
0 |
| ODI |
0 |
98 |
11 |
121 |
96 |
128 |
137 |
0 |
| CDI |
0 |
67 |
13 |
132 |
147 |
173 |
187 |
0 |
| VCDI |
0 |
2 |
0 |
5 |
203 |
2510 |
5252 |
30950 |
|
Date: 2021-12-17:
| 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 |
62 |
2933 |
49 |
259 |
183 |
0 |
0 |
0 |
| OW |
0 |
402 |
36 |
269 |
165 |
24 |
0 |
0 |
| VODI |
0 |
160 |
15 |
208 |
273 |
58 |
0 |
0 |
| ODI |
0 |
88 |
9 |
130 |
253 |
77 |
10 |
0 |
| CDI |
0 |
55 |
9 |
49 |
233 |
410 |
52 |
0 |
| VCDI |
0 |
9 |
4 |
50 |
297 |
3270 |
6469 |
29296 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62 |
2749 |
56 |
268 |
225 |
14 |
0 |
0 |
| OW |
0 |
419 |
22 |
220 |
228 |
55 |
0 |
0 |
| VODI |
0 |
252 |
18 |
222 |
280 |
202 |
0 |
0 |
| ODI |
0 |
86 |
10 |
124 |
158 |
347 |
47 |
0 |
| CDI |
0 |
66 |
12 |
79 |
194 |
213 |
114 |
0 |
| VCDI |
0 |
75 |
4 |
52 |
319 |
3008 |
6370 |
29296 |
|
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