Validation of sea ice concentration - Full domain
Bulletin date: 2023-09-21
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-16:
| 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 |
130674 |
16831 |
615 |
708 |
111 |
0 |
0 |
0 |
| OW |
0 |
786 |
549 |
1089 |
165 |
0 |
0 |
0 |
| VODI |
0 |
69 |
125 |
2557 |
800 |
59 |
0 |
0 |
| ODI |
0 |
0 |
18 |
909 |
7292 |
1438 |
19 |
0 |
| CDI |
0 |
0 |
0 |
91 |
2934 |
8130 |
1258 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
5207 |
4576 |
16 |
|
...date precedes bulletin
|
Date: 2023-09-18:
| 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 |
129723 |
17402 |
607 |
674 |
23 |
0 |
0 |
0 |
| OW |
0 |
1065 |
491 |
1148 |
90 |
6 |
0 |
0 |
| VODI |
0 |
83 |
183 |
2499 |
670 |
43 |
0 |
0 |
| ODI |
0 |
2 |
23 |
1082 |
5217 |
2025 |
39 |
0 |
| CDI |
0 |
0 |
0 |
277 |
2459 |
9319 |
1084 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
82 |
3612 |
6919 |
201 |
|
...date precedes bulletin
|
Date: 2023-09-20:
| 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 |
131765 |
15947 |
842 |
699 |
63 |
0 |
0 |
0 |
| OW |
0 |
382 |
441 |
1062 |
73 |
1 |
0 |
0 |
| VODI |
0 |
8 |
65 |
2560 |
521 |
11 |
0 |
0 |
| ODI |
0 |
1 |
0 |
449 |
5028 |
585 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
2181 |
12514 |
773 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
14 |
3157 |
7900 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-22:
| 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 |
130767 |
16201 |
754 |
891 |
81 |
0 |
0 |
0 |
| OW |
0 |
563 |
478 |
1052 |
235 |
0 |
0 |
0 |
| VODI |
0 |
32 |
102 |
1856 |
953 |
53 |
0 |
0 |
| ODI |
0 |
0 |
0 |
484 |
4071 |
846 |
25 |
0 |
| CDI |
0 |
0 |
0 |
14 |
1949 |
11593 |
2209 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
16 |
3108 |
8709 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
130767 |
16050 |
847 |
1059 |
108 |
0 |
0 |
0 |
| OW |
0 |
697 |
366 |
1013 |
227 |
0 |
0 |
0 |
| VODI |
0 |
49 |
119 |
1772 |
950 |
60 |
0 |
0 |
| ODI |
0 |
0 |
2 |
436 |
3933 |
1057 |
22 |
0 |
| CDI |
0 |
0 |
0 |
18 |
2071 |
11423 |
2288 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
16 |
3060 |
8633 |
0 |
|
Date: 2023-09-24:
| 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 |
130896 |
15083 |
602 |
783 |
100 |
0 |
0 |
0 |
| OW |
0 |
1094 |
453 |
1106 |
344 |
116 |
9 |
0 |
| VODI |
0 |
95 |
169 |
1414 |
936 |
216 |
112 |
0 |
| ODI |
0 |
3 |
8 |
671 |
3121 |
730 |
235 |
0 |
| CDI |
0 |
0 |
0 |
42 |
1439 |
9114 |
3996 |
9 |
| VCDI |
0 |
0 |
0 |
14 |
41 |
2817 |
11230 |
50 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
130896 |
14977 |
731 |
1072 |
140 |
0 |
0 |
0 |
| OW |
0 |
1144 |
289 |
960 |
339 |
83 |
3 |
0 |
| VODI |
0 |
151 |
205 |
1296 |
986 |
233 |
89 |
0 |
| ODI |
0 |
3 |
7 |
634 |
2952 |
994 |
260 |
0 |
| CDI |
0 |
0 |
0 |
53 |
1513 |
8864 |
4339 |
8 |
| VCDI |
0 |
0 |
0 |
15 |
51 |
2819 |
10891 |
51 |
|
Date: 2023-09-26:
| 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 |
127307 |
18214 |
965 |
1126 |
112 |
0 |
0 |
0 |
| OW |
0 |
266 |
335 |
1044 |
206 |
0 |
0 |
0 |
| VODI |
0 |
9 |
26 |
1569 |
1024 |
22 |
0 |
0 |
| ODI |
0 |
0 |
0 |
114 |
3459 |
335 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
670 |
6385 |
594 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
3 |
2565 |
18895 |
1779 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
127307 |
16993 |
769 |
1180 |
228 |
10 |
0 |
0 |
| OW |
0 |
1226 |
326 |
1181 |
749 |
92 |
0 |
0 |
| VODI |
0 |
260 |
209 |
1010 |
1085 |
515 |
28 |
0 |
| ODI |
0 |
10 |
22 |
452 |
2231 |
924 |
226 |
0 |
| CDI |
0 |
0 |
0 |
44 |
1160 |
5750 |
6474 |
203 |
| VCDI |
0 |
0 |
0 |
10 |
21 |
2016 |
12761 |
1576 |
|
Date: 2023-09-28:
| 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 |
127885 |
17157 |
758 |
1029 |
126 |
0 |
0 |
0 |
| OW |
0 |
835 |
360 |
1104 |
142 |
5 |
0 |
0 |
| VODI |
0 |
39 |
138 |
1447 |
1069 |
22 |
0 |
0 |
| ODI |
0 |
0 |
0 |
259 |
2707 |
360 |
13 |
0 |
| CDI |
0 |
0 |
0 |
8 |
1190 |
3434 |
1308 |
64 |
| VCDI |
0 |
0 |
0 |
0 |
21 |
2408 |
17145 |
6015 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
127885 |
16362 |
633 |
940 |
194 |
4 |
0 |
0 |
| OW |
0 |
1396 |
403 |
1330 |
488 |
33 |
0 |
0 |
| VODI |
0 |
253 |
198 |
1125 |
1355 |
264 |
26 |
0 |
| ODI |
0 |
20 |
22 |
410 |
1919 |
833 |
188 |
0 |
| CDI |
0 |
0 |
0 |
42 |
1267 |
4120 |
4207 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
32 |
975 |
14045 |
6076 |
|
Date: 2023-09-30:
| 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 |
129394 |
14704 |
658 |
1076 |
190 |
4 |
0 |
0 |
| OW |
0 |
1216 |
327 |
1016 |
239 |
12 |
0 |
0 |
| VODI |
0 |
111 |
157 |
1279 |
1175 |
84 |
0 |
0 |
| ODI |
0 |
0 |
5 |
263 |
1996 |
859 |
6 |
0 |
| CDI |
0 |
0 |
0 |
37 |
836 |
3334 |
656 |
27 |
| VCDI |
0 |
0 |
0 |
0 |
53 |
1356 |
12244 |
13734 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
129317 |
14192 |
621 |
1038 |
331 |
7 |
0 |
0 |
| OW |
77 |
1580 |
351 |
1215 |
576 |
69 |
0 |
0 |
| VODI |
0 |
229 |
149 |
963 |
1297 |
567 |
12 |
0 |
| ODI |
0 |
30 |
26 |
378 |
1191 |
1441 |
195 |
0 |
| CDI |
0 |
0 |
0 |
76 |
996 |
2631 |
3741 |
284 |
| VCDI |
0 |
0 |
0 |
1 |
98 |
934 |
8958 |
13477 |
|
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