Validation of sea ice concentration - Full domain
Bulletin date: 2024-01-04
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-29:
| 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 |
75770 |
12640 |
238 |
266 |
105 |
106 |
239 |
0 |
| OW |
75 |
1076 |
154 |
222 |
108 |
29 |
38 |
0 |
| VODI |
0 |
577 |
177 |
377 |
358 |
124 |
33 |
0 |
| ODI |
0 |
204 |
88 |
300 |
700 |
272 |
42 |
0 |
| CDI |
0 |
131 |
52 |
187 |
696 |
1018 |
236 |
0 |
| VCDI |
0 |
167 |
98 |
300 |
1151 |
7837 |
29230 |
51627 |
|
...date precedes bulletin
|
Date: 2023-12-31:
| 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 |
74868 |
12963 |
220 |
281 |
154 |
134 |
200 |
0 |
| OW |
77 |
1161 |
115 |
200 |
103 |
17 |
41 |
0 |
| VODI |
3 |
853 |
193 |
274 |
226 |
101 |
34 |
0 |
| ODI |
1 |
306 |
123 |
293 |
431 |
182 |
48 |
0 |
| CDI |
1 |
182 |
82 |
239 |
581 |
760 |
153 |
51 |
| VCDI |
0 |
197 |
115 |
444 |
1267 |
7372 |
27688 |
54314 |
|
...date precedes bulletin
|
Date: 2024-01-02:
| 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 |
73822 |
14559 |
272 |
230 |
94 |
106 |
119 |
0 |
| OW |
82 |
766 |
162 |
242 |
107 |
15 |
28 |
0 |
| VODI |
2 |
378 |
170 |
501 |
291 |
44 |
40 |
0 |
| ODI |
2 |
145 |
89 |
379 |
365 |
163 |
36 |
0 |
| CDI |
0 |
50 |
58 |
241 |
645 |
1131 |
148 |
1 |
| VCDI |
0 |
57 |
57 |
305 |
1203 |
7532 |
32957 |
49454 |
|
...date precedes bulletin
|
Date: 2024-01-04:
| 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 |
73408 |
13964 |
294 |
314 |
136 |
118 |
97 |
0 |
| OW |
98 |
624 |
125 |
250 |
171 |
26 |
24 |
0 |
| VODI |
0 |
436 |
108 |
301 |
396 |
80 |
28 |
0 |
| ODI |
0 |
222 |
84 |
295 |
473 |
155 |
29 |
0 |
| CDI |
0 |
106 |
79 |
293 |
572 |
728 |
169 |
0 |
| VCDI |
0 |
118 |
52 |
405 |
1102 |
8117 |
36048 |
47003 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73400 |
14042 |
307 |
361 |
200 |
127 |
96 |
0 |
| OW |
105 |
544 |
120 |
230 |
130 |
23 |
22 |
0 |
| VODI |
1 |
432 |
97 |
282 |
354 |
77 |
28 |
0 |
| ODI |
0 |
224 |
86 |
270 |
455 |
139 |
29 |
0 |
| CDI |
0 |
105 |
79 |
288 |
568 |
795 |
176 |
0 |
| VCDI |
0 |
123 |
53 |
427 |
1143 |
8063 |
36044 |
47003 |
|
Date: 2024-01-06:
| 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 |
71411 |
14715 |
366 |
452 |
213 |
101 |
152 |
0 |
| OW |
74 |
665 |
126 |
208 |
256 |
39 |
24 |
0 |
| VODI |
0 |
372 |
81 |
210 |
342 |
181 |
39 |
0 |
| ODI |
0 |
202 |
74 |
128 |
434 |
334 |
28 |
0 |
| CDI |
0 |
108 |
84 |
196 |
490 |
924 |
209 |
2 |
| VCDI |
0 |
116 |
71 |
345 |
1083 |
7968 |
33630 |
50595 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71411 |
14873 |
383 |
497 |
294 |
116 |
148 |
0 |
| OW |
74 |
522 |
108 |
156 |
226 |
52 |
23 |
0 |
| VODI |
0 |
353 |
79 |
206 |
317 |
170 |
39 |
0 |
| ODI |
0 |
203 |
79 |
124 |
374 |
319 |
30 |
0 |
| CDI |
0 |
115 |
89 |
197 |
479 |
911 |
210 |
1 |
| VCDI |
0 |
112 |
64 |
359 |
1128 |
7979 |
33632 |
50596 |
|
Date: 2024-01-08:
| 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 |
69814 |
16783 |
492 |
395 |
184 |
80 |
74 |
0 |
| OW |
74 |
394 |
132 |
260 |
163 |
43 |
2 |
0 |
| VODI |
0 |
153 |
110 |
280 |
354 |
129 |
3 |
0 |
| ODI |
0 |
20 |
58 |
182 |
442 |
320 |
21 |
0 |
| CDI |
0 |
21 |
19 |
149 |
541 |
1356 |
166 |
0 |
| VCDI |
0 |
40 |
19 |
159 |
969 |
7415 |
33515 |
51717 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69828 |
16149 |
446 |
407 |
306 |
157 |
78 |
0 |
| OW |
60 |
589 |
95 |
136 |
131 |
92 |
2 |
0 |
| VODI |
0 |
399 |
104 |
212 |
223 |
176 |
27 |
0 |
| ODI |
0 |
159 |
73 |
169 |
240 |
254 |
30 |
0 |
| CDI |
0 |
60 |
70 |
185 |
447 |
754 |
135 |
0 |
| VCDI |
0 |
55 |
42 |
316 |
1306 |
7910 |
33509 |
51717 |
|
Date: 2024-01-10:
| 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 |
70629 |
15666 |
394 |
504 |
229 |
80 |
73 |
0 |
| OW |
78 |
408 |
134 |
208 |
199 |
78 |
8 |
0 |
| VODI |
2 |
198 |
125 |
238 |
220 |
196 |
48 |
0 |
| ODI |
0 |
50 |
53 |
181 |
244 |
266 |
38 |
0 |
| CDI |
0 |
17 |
33 |
118 |
376 |
625 |
179 |
5 |
| VCDI |
0 |
8 |
13 |
121 |
1072 |
7309 |
34927 |
51698 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70644 |
15183 |
305 |
414 |
280 |
171 |
87 |
0 |
| OW |
61 |
563 |
114 |
165 |
122 |
90 |
18 |
0 |
| VODI |
4 |
384 |
146 |
201 |
172 |
210 |
45 |
0 |
| ODI |
0 |
153 |
100 |
183 |
161 |
228 |
79 |
0 |
| CDI |
0 |
57 |
67 |
207 |
389 |
700 |
235 |
0 |
| VCDI |
0 |
7 |
20 |
200 |
1216 |
7155 |
34809 |
51703 |
|
Date: 2024-01-12:
| 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 |
70717 |
15283 |
354 |
482 |
228 |
91 |
92 |
0 |
| OW |
60 |
513 |
126 |
192 |
184 |
74 |
10 |
0 |
| VODI |
0 |
208 |
135 |
224 |
257 |
184 |
42 |
0 |
| ODI |
0 |
56 |
49 |
230 |
257 |
243 |
49 |
0 |
| CDI |
0 |
20 |
22 |
180 |
542 |
648 |
157 |
6 |
| VCDI |
0 |
14 |
24 |
153 |
1191 |
6176 |
36468 |
51107 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70717 |
14654 |
340 |
511 |
330 |
206 |
111 |
0 |
| OW |
60 |
714 |
88 |
143 |
188 |
120 |
41 |
0 |
| VODI |
0 |
452 |
111 |
187 |
211 |
237 |
60 |
0 |
| ODI |
0 |
171 |
81 |
188 |
211 |
273 |
73 |
1 |
| CDI |
0 |
74 |
62 |
208 |
474 |
839 |
325 |
32 |
| VCDI |
0 |
29 |
28 |
224 |
1245 |
5741 |
36208 |
51080 |
|
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