Validation of sea ice concentration - American sector
Bulletin date: 2023-12-21
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: :
| 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 |
145 |
1914 |
344 |
562 |
320 |
0 |
0 |
0 |
| OW |
8 |
233 |
81 |
453 |
402 |
33 |
0 |
0 |
| VODI |
0 |
99 |
37 |
308 |
540 |
187 |
0 |
0 |
| ODI |
0 |
24 |
16 |
158 |
293 |
323 |
0 |
0 |
| CDI |
0 |
28 |
20 |
109 |
291 |
796 |
7 |
0 |
| VCDI |
0 |
0 |
9 |
80 |
458 |
3582 |
5592 |
28414 |
|
...date precedes bulletin
|
Date: :
| 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 |
225 |
1644 |
185 |
322 |
207 |
147 |
0 |
0 |
| OW |
1 |
120 |
82 |
424 |
346 |
292 |
0 |
0 |
| VODI |
0 |
44 |
34 |
304 |
238 |
444 |
0 |
0 |
| ODI |
0 |
20 |
16 |
153 |
273 |
394 |
15 |
0 |
| CDI |
0 |
1 |
0 |
56 |
193 |
586 |
131 |
0 |
| VCDI |
0 |
0 |
0 |
84 |
383 |
2964 |
5960 |
29578 |
|
...date precedes bulletin
|
Date: :
| 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 |
151 |
1083 |
91 |
177 |
31 |
0 |
0 |
0 |
| OW |
1 |
253 |
70 |
254 |
95 |
14 |
0 |
0 |
| VODI |
0 |
35 |
16 |
293 |
530 |
71 |
25 |
0 |
| ODI |
0 |
0 |
0 |
37 |
546 |
426 |
101 |
0 |
| CDI |
0 |
0 |
0 |
3 |
287 |
1117 |
270 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
161 |
2493 |
7681 |
29552 |
|
...date precedes bulletin
|
Date: :
| 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 |
41 |
725 |
55 |
111 |
25 |
0 |
0 |
0 |
| OW |
34 |
306 |
70 |
233 |
127 |
6 |
0 |
0 |
| VODI |
0 |
98 |
28 |
211 |
239 |
70 |
0 |
0 |
| ODI |
0 |
6 |
4 |
51 |
505 |
152 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
579 |
724 |
89 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
128 |
3085 |
8643 |
29519 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58 |
765 |
55 |
130 |
24 |
0 |
0 |
0 |
| OW |
17 |
267 |
66 |
200 |
136 |
2 |
0 |
0 |
| VODI |
0 |
94 |
33 |
218 |
229 |
63 |
0 |
0 |
| ODI |
0 |
9 |
3 |
54 |
471 |
141 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
615 |
579 |
62 |
3 |
| VCDI |
0 |
0 |
0 |
1 |
128 |
3252 |
8670 |
29517 |
|
Date: :
| 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 |
20 |
577 |
63 |
138 |
30 |
0 |
0 |
0 |
| OW |
26 |
330 |
40 |
262 |
93 |
17 |
0 |
0 |
| VODI |
0 |
107 |
23 |
269 |
180 |
69 |
8 |
0 |
| ODI |
0 |
13 |
1 |
95 |
452 |
151 |
35 |
0 |
| CDI |
0 |
1 |
0 |
28 |
671 |
448 |
52 |
8 |
| VCDI |
0 |
0 |
0 |
4 |
398 |
2360 |
6698 |
32199 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22 |
595 |
57 |
177 |
20 |
0 |
0 |
0 |
| OW |
24 |
316 |
37 |
205 |
110 |
15 |
0 |
0 |
| VODI |
0 |
103 |
32 |
259 |
176 |
74 |
0 |
0 |
| ODI |
0 |
12 |
1 |
122 |
447 |
144 |
36 |
0 |
| CDI |
0 |
2 |
0 |
29 |
692 |
447 |
89 |
7 |
| VCDI |
0 |
0 |
0 |
4 |
379 |
2365 |
6668 |
32200 |
|
Date: :
| 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 |
13 |
796 |
55 |
118 |
12 |
0 |
0 |
0 |
| OW |
0 |
105 |
28 |
191 |
57 |
1 |
0 |
0 |
| VODI |
0 |
22 |
3 |
384 |
265 |
15 |
0 |
0 |
| ODI |
0 |
0 |
0 |
24 |
544 |
107 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
428 |
807 |
58 |
4 |
| VCDI |
0 |
0 |
0 |
21 |
143 |
2985 |
12175 |
26491 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9 |
558 |
55 |
156 |
49 |
0 |
0 |
0 |
| OW |
4 |
231 |
21 |
207 |
85 |
27 |
0 |
0 |
| VODI |
0 |
117 |
8 |
282 |
228 |
68 |
4 |
0 |
| ODI |
0 |
16 |
2 |
71 |
402 |
194 |
52 |
0 |
| CDI |
0 |
1 |
0 |
1 |
428 |
678 |
253 |
4 |
| VCDI |
0 |
0 |
0 |
35 |
257 |
2948 |
11924 |
26491 |
|
Date: :
| 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 |
524 |
55 |
81 |
15 |
0 |
0 |
0 |
| OW |
0 |
211 |
25 |
139 |
100 |
3 |
0 |
0 |
| VODI |
0 |
73 |
1 |
224 |
348 |
57 |
0 |
0 |
| ODI |
0 |
0 |
2 |
38 |
338 |
119 |
0 |
0 |
| CDI |
0 |
0 |
0 |
19 |
164 |
845 |
92 |
7 |
| VCDI |
0 |
0 |
0 |
40 |
224 |
3008 |
10978 |
28136 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
344 |
34 |
109 |
44 |
7 |
0 |
0 |
| OW |
0 |
221 |
30 |
106 |
98 |
36 |
0 |
0 |
| VODI |
0 |
224 |
16 |
159 |
274 |
77 |
4 |
0 |
| ODI |
0 |
19 |
3 |
94 |
262 |
193 |
37 |
0 |
| CDI |
0 |
0 |
0 |
15 |
246 |
505 |
189 |
22 |
| VCDI |
0 |
0 |
0 |
58 |
265 |
3214 |
10840 |
28121 |
|
Date: :
| 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 |
297 |
31 |
21 |
3 |
0 |
0 |
0 |
| OW |
5 |
359 |
40 |
130 |
57 |
0 |
0 |
0 |
| VODI |
0 |
142 |
28 |
172 |
261 |
32 |
0 |
0 |
| ODI |
0 |
9 |
2 |
60 |
393 |
107 |
3 |
0 |
| CDI |
0 |
0 |
0 |
22 |
196 |
507 |
43 |
2 |
| VCDI |
0 |
0 |
0 |
32 |
163 |
2838 |
10385 |
29526 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
98 |
14 |
18 |
3 |
0 |
0 |
0 |
| OW |
2 |
315 |
25 |
134 |
58 |
20 |
0 |
0 |
| VODI |
3 |
299 |
37 |
132 |
200 |
55 |
14 |
0 |
| ODI |
0 |
91 |
25 |
100 |
275 |
158 |
32 |
0 |
| CDI |
0 |
4 |
0 |
14 |
293 |
322 |
108 |
10 |
| VCDI |
0 |
0 |
0 |
39 |
244 |
2929 |
10277 |
29518 |
|
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