Validation of sea ice concentration - American sector
Bulletin date: 2023-09-07
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-01:
| 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 |
6760 |
3585 |
18092 |
103 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
1518 |
52 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1803 |
126 |
21 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1818 |
826 |
706 |
30 |
0 |
0 |
| CDI |
0 |
0 |
2728 |
1206 |
1357 |
75 |
0 |
0 |
| VCDI |
0 |
0 |
3915 |
1072 |
73 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-03:
| 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 |
17418 |
10172 |
405 |
320 |
8 |
0 |
0 |
0 |
| OW |
0 |
1189 |
328 |
311 |
14 |
0 |
0 |
0 |
| VODI |
0 |
176 |
333 |
1208 |
200 |
11 |
0 |
0 |
| ODI |
0 |
6 |
17 |
775 |
2087 |
383 |
1 |
0 |
| CDI |
0 |
7 |
0 |
32 |
1227 |
3899 |
229 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
88 |
3418 |
1604 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-05:
| 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 |
18353 |
10880 |
466 |
210 |
5 |
0 |
0 |
0 |
| OW |
0 |
291 |
236 |
291 |
18 |
0 |
0 |
0 |
| VODI |
0 |
78 |
130 |
681 |
273 |
12 |
0 |
0 |
| ODI |
0 |
6 |
7 |
508 |
1907 |
353 |
0 |
0 |
| CDI |
0 |
5 |
2 |
38 |
1316 |
4924 |
128 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
10 |
3618 |
1118 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-07:
| 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 |
18413 |
10833 |
306 |
171 |
17 |
0 |
0 |
0 |
| OW |
0 |
503 |
258 |
224 |
10 |
1 |
0 |
0 |
| VODI |
0 |
103 |
158 |
709 |
196 |
3 |
0 |
0 |
| ODI |
0 |
13 |
36 |
852 |
1421 |
222 |
0 |
0 |
| CDI |
0 |
3 |
1 |
88 |
1915 |
4456 |
158 |
0 |
| VCDI |
0 |
1 |
0 |
2 |
12 |
4379 |
402 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18413 |
10685 |
300 |
173 |
15 |
0 |
0 |
0 |
| OW |
0 |
575 |
239 |
194 |
15 |
1 |
0 |
0 |
| VODI |
0 |
180 |
187 |
770 |
149 |
6 |
0 |
0 |
| ODI |
0 |
12 |
32 |
787 |
1414 |
186 |
0 |
0 |
| CDI |
0 |
2 |
1 |
120 |
1965 |
4129 |
151 |
0 |
| VCDI |
0 |
2 |
0 |
2 |
13 |
4739 |
409 |
0 |
|
Date: 2023-09-09:
| 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 |
19039 |
10239 |
279 |
151 |
2 |
0 |
0 |
0 |
| OW |
0 |
615 |
211 |
252 |
12 |
0 |
0 |
0 |
| VODI |
0 |
133 |
175 |
745 |
144 |
1 |
0 |
0 |
| ODI |
0 |
18 |
45 |
1053 |
963 |
81 |
0 |
0 |
| CDI |
0 |
0 |
3 |
318 |
1890 |
3076 |
181 |
0 |
| VCDI |
0 |
0 |
2 |
2 |
13 |
5358 |
865 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19039 |
9929 |
270 |
146 |
3 |
0 |
0 |
0 |
| OW |
0 |
848 |
202 |
207 |
12 |
0 |
0 |
0 |
| VODI |
0 |
204 |
190 |
877 |
105 |
3 |
0 |
0 |
| ODI |
0 |
24 |
49 |
935 |
948 |
52 |
0 |
0 |
| CDI |
0 |
0 |
2 |
353 |
1942 |
2997 |
200 |
0 |
| VCDI |
0 |
0 |
2 |
3 |
14 |
5464 |
846 |
0 |
|
Date: 2023-09-11:
| 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 |
19017 |
10719 |
415 |
301 |
6 |
0 |
0 |
0 |
| OW |
0 |
208 |
138 |
269 |
18 |
0 |
0 |
0 |
| VODI |
0 |
48 |
91 |
976 |
192 |
1 |
0 |
0 |
| ODI |
0 |
1 |
1 |
358 |
2327 |
213 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
697 |
5749 |
102 |
0 |
| VCDI |
0 |
0 |
1 |
4 |
9 |
3127 |
863 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19017 |
9825 |
262 |
221 |
4 |
0 |
0 |
0 |
| OW |
0 |
853 |
202 |
282 |
36 |
0 |
0 |
0 |
| VODI |
0 |
246 |
138 |
658 |
368 |
59 |
0 |
0 |
| ODI |
0 |
52 |
36 |
419 |
788 |
378 |
0 |
0 |
| CDI |
0 |
0 |
7 |
339 |
2028 |
2629 |
148 |
0 |
| VCDI |
0 |
0 |
1 |
4 |
25 |
6024 |
817 |
0 |
|
Date: 2023-09-13:
| 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 |
20248 |
9708 |
348 |
316 |
51 |
0 |
0 |
0 |
| OW |
0 |
218 |
112 |
232 |
82 |
0 |
0 |
0 |
| VODI |
0 |
62 |
101 |
631 |
347 |
60 |
0 |
0 |
| ODI |
0 |
1 |
2 |
365 |
1573 |
723 |
28 |
0 |
| CDI |
0 |
0 |
0 |
21 |
924 |
3163 |
1318 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
14 |
3939 |
1272 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20248 |
8661 |
185 |
158 |
38 |
0 |
0 |
0 |
| OW |
0 |
962 |
146 |
204 |
38 |
0 |
0 |
0 |
| VODI |
0 |
335 |
183 |
663 |
290 |
64 |
0 |
0 |
| ODI |
0 |
27 |
40 |
474 |
800 |
266 |
10 |
0 |
| CDI |
0 |
4 |
9 |
66 |
1807 |
2366 |
786 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
18 |
5189 |
1822 |
0 |
|
Date: 2023-09-15:
| 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 |
20869 |
9269 |
261 |
184 |
81 |
9 |
0 |
0 |
| OW |
0 |
331 |
147 |
198 |
60 |
4 |
0 |
0 |
| VODI |
0 |
147 |
134 |
562 |
243 |
69 |
0 |
0 |
| ODI |
0 |
23 |
48 |
437 |
1296 |
671 |
18 |
0 |
| CDI |
0 |
0 |
2 |
147 |
898 |
2587 |
883 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
30 |
4038 |
2219 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20869 |
8119 |
166 |
108 |
56 |
8 |
0 |
0 |
| OW |
0 |
1040 |
96 |
111 |
37 |
5 |
0 |
0 |
| VODI |
0 |
552 |
211 |
523 |
188 |
34 |
0 |
0 |
| ODI |
0 |
42 |
92 |
536 |
625 |
282 |
3 |
0 |
| CDI |
0 |
17 |
27 |
251 |
1695 |
2446 |
501 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
4603 |
2616 |
0 |
|
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