Validation of sea ice concentration - Full domain
Reference date: 2025-05-08
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-05-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69805 |
13736 |
354 |
263 |
1 |
0 |
0 |
0 |
| OW |
17 |
322 |
151 |
370 |
36 |
0 |
0 |
0 |
| VODI |
0 |
351 |
232 |
1192 |
397 |
38 |
4 |
6 |
| ODI |
0 |
84 |
102 |
1014 |
2256 |
628 |
107 |
18 |
| CDI |
0 |
0 |
0 |
192 |
2597 |
6498 |
1826 |
58 |
| VCDI |
0 |
0 |
0 |
0 |
188 |
4567 |
31196 |
48435 |
|
|
Date: 2025-05-04:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69661 |
13953 |
313 |
316 |
24 |
0 |
0 |
0 |
| OW |
0 |
400 |
143 |
329 |
53 |
0 |
0 |
0 |
| VODI |
0 |
391 |
280 |
1199 |
462 |
30 |
7 |
0 |
| ODI |
0 |
91 |
106 |
1006 |
3033 |
1068 |
75 |
8 |
| CDI |
0 |
0 |
1 |
133 |
2104 |
8682 |
1948 |
64 |
| VCDI |
0 |
0 |
0 |
0 |
138 |
3935 |
27546 |
49542 |
|
|
Date: 2025-05-06:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69648 |
14157 |
327 |
383 |
40 |
0 |
0 |
0 |
| OW |
0 |
374 |
123 |
314 |
49 |
0 |
0 |
0 |
| VODI |
0 |
413 |
271 |
1175 |
536 |
24 |
0 |
0 |
| ODI |
0 |
163 |
122 |
1177 |
3846 |
715 |
43 |
0 |
| CDI |
0 |
14 |
15 |
143 |
2399 |
9902 |
2120 |
70 |
| VCDI |
0 |
0 |
0 |
0 |
81 |
2169 |
24470 |
51758 |
|
|
Date: 2025-05-08:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69567 |
14360 |
356 |
402 |
0 |
0 |
0 |
0 |
| OW |
0 |
339 |
112 |
373 |
60 |
0 |
0 |
0 |
| VODI |
0 |
406 |
243 |
1242 |
779 |
40 |
14 |
0 |
| ODI |
0 |
189 |
119 |
1328 |
3991 |
922 |
96 |
0 |
| CDI |
0 |
24 |
10 |
186 |
3427 |
9086 |
2262 |
35 |
| VCDI |
0 |
0 |
0 |
0 |
157 |
3437 |
27803 |
45676 |
|
|
Date: 2025-05-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70862 |
13440 |
330 |
309 |
4 |
0 |
0 |
0 |
| OW |
0 |
336 |
116 |
382 |
60 |
1 |
0 |
0 |
| VODI |
0 |
477 |
298 |
1385 |
847 |
45 |
38 |
0 |
| ODI |
0 |
369 |
262 |
1730 |
4123 |
1201 |
107 |
0 |
| CDI |
0 |
19 |
27 |
355 |
3175 |
8786 |
2361 |
62 |
| VCDI |
0 |
0 |
0 |
5 |
114 |
2432 |
27697 |
45286 |
|
|
Date: 2025-05-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71566 |
12967 |
343 |
320 |
1 |
0 |
0 |
0 |
| OW |
0 |
335 |
128 |
493 |
36 |
1 |
2 |
0 |
| VODI |
0 |
532 |
273 |
1760 |
818 |
55 |
38 |
0 |
| ODI |
0 |
341 |
222 |
1928 |
4905 |
1341 |
93 |
3 |
| CDI |
0 |
14 |
6 |
350 |
3288 |
8266 |
3524 |
109 |
| VCDI |
0 |
0 |
0 |
1 |
38 |
2311 |
28539 |
42094 |
|
|
Date: 2025-05-14:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72258 |
12854 |
395 |
332 |
0 |
0 |
0 |
0 |
| OW |
0 |
432 |
142 |
432 |
13 |
0 |
0 |
0 |
| VODI |
0 |
856 |
307 |
1812 |
781 |
45 |
27 |
0 |
| ODI |
0 |
577 |
250 |
1778 |
5226 |
1333 |
87 |
7 |
| CDI |
0 |
5 |
4 |
257 |
2540 |
9259 |
4085 |
288 |
| VCDI |
0 |
0 |
0 |
0 |
41 |
7725 |
46117 |
16776 |
|
|
Date: 2025-05-16:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71298 |
14012 |
460 |
629 |
10 |
0 |
0 |
0 |
| OW |
0 |
364 |
104 |
506 |
36 |
0 |
0 |
0 |
| VODI |
0 |
725 |
314 |
2357 |
873 |
39 |
9 |
0 |
| ODI |
0 |
601 |
341 |
2217 |
4840 |
1083 |
78 |
7 |
| CDI |
0 |
143 |
21 |
410 |
2937 |
9263 |
3838 |
111 |
| VCDI |
0 |
0 |
0 |
1 |
73 |
2933 |
36015 |
30393 |
|
|
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