Validation of sea ice concentration
Bulletin date: 2018-06-07
Model vs. observations, sea ice class contingency tables
Date: 2018-06-01:
| 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 |
15598 |
6517 |
1248 |
1418 |
348 |
52 |
34 |
0 |
| OW |
0 |
9 |
59 |
211 |
244 |
83 |
69 |
11 |
| VODI |
0 |
0 |
18 |
135 |
260 |
202 |
168 |
13 |
| ODI |
0 |
0 |
5 |
50 |
114 |
212 |
382 |
1 |
| CDI |
0 |
0 |
0 |
27 |
57 |
203 |
1324 |
1 |
| VCDI |
0 |
0 |
0 |
13 |
45 |
145 |
4899 |
3984 |
|
...date precedes bulletin
|
Date: 2018-06-05:
| 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 |
16265 |
6448 |
955 |
1222 |
410 |
89 |
51 |
3 |
| OW |
0 |
19 |
84 |
185 |
170 |
57 |
60 |
16 |
| VODI |
0 |
0 |
39 |
158 |
276 |
135 |
135 |
5 |
| ODI |
0 |
0 |
13 |
73 |
175 |
253 |
284 |
1 |
| CDI |
0 |
0 |
5 |
51 |
92 |
333 |
1701 |
0 |
| VCDI |
0 |
0 |
2 |
11 |
14 |
150 |
4436 |
3783 |
|
...date precedes bulletin
|
Date: 2018-06-07:
| 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 |
16396 |
6334 |
1113 |
1182 |
346 |
39 |
58 |
11 |
| OW |
0 |
27 |
80 |
220 |
211 |
68 |
64 |
11 |
| VODI |
0 |
5 |
54 |
176 |
288 |
174 |
155 |
2 |
| ODI |
0 |
0 |
22 |
78 |
117 |
241 |
445 |
1 |
| CDI |
0 |
0 |
6 |
102 |
94 |
249 |
1996 |
6 |
| VCDI |
0 |
0 |
1 |
14 |
18 |
29 |
3999 |
3727 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16396 |
6342 |
1125 |
1249 |
399 |
55 |
69 |
21 |
| OW |
0 |
19 |
65 |
163 |
198 |
61 |
57 |
1 |
| VODI |
0 |
5 |
58 |
165 |
247 |
205 |
175 |
2 |
| ODI |
0 |
0 |
21 |
88 |
125 |
203 |
480 |
1 |
| CDI |
0 |
0 |
6 |
96 |
81 |
234 |
1832 |
8 |
| VCDI |
0 |
0 |
1 |
11 |
24 |
42 |
4104 |
3725 |
|
Date: 2018-06-11:
| 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 |
16254 |
6377 |
1324 |
1292 |
341 |
61 |
73 |
0 |
| OW |
0 |
0 |
39 |
257 |
193 |
46 |
65 |
0 |
| VODI |
0 |
0 |
21 |
166 |
314 |
112 |
153 |
0 |
| ODI |
0 |
0 |
8 |
101 |
246 |
338 |
419 |
0 |
| CDI |
0 |
0 |
2 |
33 |
92 |
291 |
2884 |
18 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
40 |
2956 |
3641 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16254 |
6377 |
1335 |
1364 |
502 |
100 |
118 |
0 |
| OW |
0 |
0 |
32 |
164 |
182 |
90 |
125 |
0 |
| VODI |
0 |
0 |
17 |
151 |
166 |
193 |
287 |
0 |
| ODI |
0 |
0 |
8 |
104 |
160 |
181 |
583 |
0 |
| CDI |
0 |
0 |
2 |
66 |
176 |
314 |
2628 |
13 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
10 |
2809 |
3646 |
|
Date: 2018-06-13:
| 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 |
16018 |
6363 |
1557 |
1244 |
672 |
111 |
82 |
0 |
| OW |
0 |
0 |
42 |
147 |
207 |
95 |
77 |
0 |
| VODI |
0 |
0 |
21 |
136 |
249 |
303 |
207 |
0 |
| ODI |
0 |
0 |
10 |
64 |
129 |
293 |
706 |
0 |
| CDI |
0 |
0 |
1 |
13 |
31 |
232 |
2870 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
11 |
2601 |
3656 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16018 |
6363 |
1517 |
1137 |
784 |
227 |
151 |
0 |
| OW |
0 |
0 |
49 |
113 |
130 |
162 |
149 |
0 |
| VODI |
0 |
0 |
54 |
158 |
124 |
175 |
352 |
0 |
| ODI |
0 |
0 |
10 |
128 |
158 |
179 |
632 |
0 |
| CDI |
0 |
0 |
1 |
68 |
91 |
295 |
3187 |
37 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
7 |
2072 |
3628 |
|
Date: 2018-06-15:
| 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 |
16351 |
6537 |
1706 |
1121 |
418 |
65 |
97 |
0 |
| OW |
0 |
0 |
63 |
188 |
228 |
129 |
85 |
0 |
| VODI |
0 |
0 |
53 |
143 |
227 |
328 |
275 |
0 |
| ODI |
0 |
0 |
22 |
75 |
134 |
448 |
687 |
0 |
| CDI |
0 |
0 |
2 |
7 |
35 |
279 |
2796 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
5 |
9 |
2103 |
3541 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16351 |
6533 |
1564 |
1028 |
536 |
188 |
167 |
0 |
| OW |
0 |
4 |
103 |
120 |
102 |
169 |
138 |
0 |
| VODI |
0 |
0 |
90 |
186 |
123 |
164 |
408 |
0 |
| ODI |
0 |
0 |
40 |
137 |
173 |
218 |
646 |
0 |
| CDI |
0 |
0 |
49 |
63 |
109 |
498 |
3324 |
5 |
| VCDI |
0 |
0 |
0 |
2 |
4 |
21 |
1360 |
3536 |
|
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