Validation of sea ice concentration - Full domain
Bulletin date: 2023-08-24
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-08-18:
| 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 |
111675 |
24974 |
1228 |
1140 |
95 |
0 |
0 |
0 |
| OW |
4 |
1471 |
822 |
1667 |
216 |
7 |
0 |
0 |
| VODI |
0 |
595 |
707 |
4556 |
1044 |
58 |
0 |
0 |
| ODI |
0 |
27 |
42 |
1828 |
7424 |
1189 |
16 |
0 |
| CDI |
0 |
1 |
7 |
118 |
5464 |
10187 |
789 |
5 |
| VCDI |
0 |
4 |
0 |
0 |
12 |
2950 |
6119 |
607 |
|
...date precedes bulletin
|
Date: 2023-08-20:
| 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 |
114459 |
22798 |
1160 |
1076 |
58 |
0 |
0 |
0 |
| OW |
5 |
1820 |
827 |
1406 |
216 |
4 |
0 |
0 |
| VODI |
0 |
681 |
802 |
4014 |
1391 |
63 |
0 |
0 |
| ODI |
0 |
38 |
58 |
1687 |
6287 |
2308 |
90 |
0 |
| CDI |
0 |
3 |
4 |
180 |
3439 |
10028 |
3201 |
0 |
| VCDI |
0 |
4 |
1 |
3 |
9 |
1284 |
6799 |
845 |
|
...date precedes bulletin
|
Date: 2023-08-22:
| 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 |
115284 |
24604 |
1653 |
1327 |
74 |
0 |
0 |
0 |
| OW |
1 |
803 |
782 |
1316 |
117 |
0 |
0 |
0 |
| VODI |
0 |
172 |
483 |
4048 |
1072 |
28 |
0 |
0 |
| ODI |
0 |
17 |
26 |
955 |
6680 |
1008 |
1 |
0 |
| CDI |
0 |
3 |
6 |
80 |
2779 |
11646 |
1595 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
3 |
2232 |
7412 |
837 |
|
...date precedes bulletin
|
Date: 2023-08-24:
| 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 |
115895 |
24830 |
1403 |
1356 |
133 |
0 |
0 |
0 |
| OW |
0 |
994 |
814 |
1414 |
139 |
12 |
0 |
0 |
| VODI |
0 |
207 |
453 |
3285 |
1103 |
75 |
0 |
0 |
| ODI |
0 |
24 |
27 |
1396 |
5726 |
946 |
13 |
0 |
| CDI |
0 |
1 |
9 |
121 |
3341 |
12158 |
1859 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
0 |
3681 |
5629 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
115895 |
24970 |
1474 |
1441 |
149 |
0 |
0 |
0 |
| OW |
0 |
818 |
700 |
1248 |
146 |
11 |
0 |
0 |
| VODI |
0 |
236 |
488 |
3282 |
1049 |
63 |
0 |
0 |
| ODI |
0 |
28 |
30 |
1471 |
5660 |
968 |
10 |
0 |
| CDI |
0 |
4 |
14 |
130 |
3438 |
12162 |
1962 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
0 |
3668 |
5529 |
0 |
|
Date: 2023-08-26:
| 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 |
115371 |
26059 |
1287 |
1202 |
115 |
0 |
0 |
0 |
| OW |
2 |
1193 |
872 |
1363 |
132 |
6 |
0 |
0 |
| VODI |
0 |
227 |
426 |
2951 |
1228 |
60 |
0 |
0 |
| ODI |
0 |
33 |
53 |
1325 |
5530 |
928 |
3 |
0 |
| CDI |
0 |
6 |
12 |
143 |
4376 |
12096 |
1255 |
0 |
| VCDI |
0 |
2 |
0 |
0 |
41 |
5799 |
2952 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
115371 |
26237 |
1405 |
1325 |
111 |
0 |
0 |
0 |
| OW |
2 |
937 |
662 |
1151 |
135 |
5 |
0 |
0 |
| VODI |
0 |
294 |
502 |
2921 |
1187 |
55 |
0 |
0 |
| ODI |
0 |
42 |
64 |
1428 |
5409 |
961 |
4 |
0 |
| CDI |
0 |
6 |
17 |
159 |
4514 |
12025 |
1294 |
0 |
| VCDI |
0 |
4 |
0 |
0 |
66 |
5843 |
2912 |
0 |
|
Date: 2023-08-28:
| 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 |
114730 |
19426 |
10049 |
956 |
64 |
1 |
0 |
0 |
| OW |
0 |
447 |
1262 |
834 |
70 |
1 |
0 |
0 |
| VODI |
0 |
123 |
1539 |
2666 |
679 |
1 |
0 |
0 |
| ODI |
0 |
12 |
1300 |
2076 |
6349 |
730 |
0 |
0 |
| CDI |
0 |
9 |
556 |
2622 |
4764 |
8478 |
301 |
0 |
| VCDI |
0 |
1 |
0 |
184 |
719 |
2808 |
3291 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
114730 |
19193 |
9784 |
1071 |
87 |
2 |
0 |
0 |
| OW |
0 |
556 |
1192 |
1006 |
125 |
0 |
0 |
0 |
| VODI |
0 |
191 |
1546 |
2008 |
1143 |
79 |
0 |
0 |
| ODI |
0 |
61 |
1352 |
1976 |
3607 |
581 |
0 |
0 |
| CDI |
0 |
13 |
817 |
2248 |
5828 |
7742 |
1352 |
0 |
| VCDI |
0 |
4 |
15 |
1029 |
1855 |
3615 |
2240 |
0 |
|
Date: 2023-08-30:
| 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 |
117995 |
25638 |
1329 |
842 |
68 |
0 |
0 |
0 |
| OW |
0 |
952 |
704 |
870 |
76 |
1 |
0 |
0 |
| VODI |
0 |
187 |
505 |
3222 |
722 |
7 |
0 |
0 |
| ODI |
0 |
7 |
32 |
1918 |
7512 |
579 |
7 |
0 |
| CDI |
0 |
6 |
4 |
131 |
5409 |
10932 |
423 |
0 |
| VCDI |
0 |
1 |
0 |
0 |
98 |
4317 |
2554 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
117995 |
24785 |
1283 |
990 |
110 |
1 |
0 |
0 |
| OW |
0 |
1220 |
525 |
937 |
110 |
2 |
0 |
0 |
| VODI |
0 |
687 |
596 |
2524 |
1190 |
88 |
9 |
0 |
| ODI |
0 |
86 |
145 |
2143 |
4266 |
708 |
33 |
0 |
| CDI |
0 |
10 |
25 |
389 |
7413 |
8665 |
828 |
0 |
| VCDI |
0 |
3 |
0 |
0 |
796 |
6372 |
2114 |
0 |
|
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 |
106511 |
18839 |
20078 |
515 |
77 |
0 |
0 |
0 |
| OW |
0 |
407 |
1788 |
545 |
73 |
0 |
0 |
0 |
| VODI |
0 |
160 |
2039 |
1674 |
674 |
10 |
0 |
0 |
| ODI |
0 |
34 |
1869 |
1651 |
5212 |
846 |
0 |
0 |
| CDI |
0 |
1 |
2737 |
1360 |
5312 |
7318 |
201 |
0 |
| VCDI |
0 |
0 |
4053 |
1859 |
409 |
696 |
100 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
106511 |
18431 |
19453 |
680 |
132 |
0 |
0 |
0 |
| OW |
0 |
675 |
1466 |
583 |
103 |
1 |
0 |
0 |
| VODI |
0 |
229 |
2547 |
1284 |
944 |
51 |
0 |
0 |
| ODI |
0 |
69 |
2176 |
1331 |
2947 |
665 |
0 |
0 |
| CDI |
0 |
37 |
3219 |
1411 |
5604 |
6350 |
201 |
0 |
| VCDI |
0 |
0 |
3703 |
2315 |
2027 |
1803 |
100 |
0 |
|
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