Validation of sea ice concentration
Bulletin date: 2020-07-30
Model vs. observations, sea ice class contingency tables
Date: 2020-07-24:
| 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 |
20578 |
6206 |
2436 |
697 |
398 |
159 |
18 |
0 |
| OW |
0 |
0 |
75 |
150 |
149 |
90 |
54 |
0 |
| VODI |
0 |
0 |
18 |
68 |
152 |
187 |
266 |
2 |
| ODI |
0 |
0 |
0 |
18 |
75 |
215 |
991 |
22 |
| CDI |
0 |
0 |
1 |
7 |
75 |
85 |
2088 |
2835 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
1 |
30 |
0 |
|
...date precedes bulletin
|
Date: 2020-07-28:
| 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 |
21175 |
6065 |
2425 |
653 |
291 |
147 |
45 |
0 |
| OW |
0 |
0 |
49 |
162 |
113 |
86 |
62 |
0 |
| VODI |
0 |
0 |
11 |
75 |
145 |
161 |
261 |
0 |
| ODI |
0 |
0 |
3 |
18 |
105 |
186 |
1234 |
0 |
| CDI |
0 |
0 |
0 |
5 |
42 |
32 |
2508 |
2075 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
1 |
21 |
0 |
|
...date precedes bulletin
|
Date: 2020-07-30:
| 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 |
21185 |
6169 |
2411 |
672 |
355 |
127 |
33 |
0 |
| OW |
0 |
0 |
74 |
113 |
120 |
97 |
99 |
0 |
| VODI |
0 |
0 |
31 |
50 |
137 |
163 |
349 |
0 |
| ODI |
0 |
0 |
6 |
41 |
108 |
180 |
1324 |
0 |
| CDI |
0 |
0 |
0 |
14 |
42 |
49 |
2199 |
1992 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
0 |
17 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21185 |
6169 |
2415 |
693 |
374 |
145 |
50 |
0 |
| OW |
0 |
0 |
63 |
89 |
112 |
82 |
90 |
0 |
| VODI |
0 |
0 |
37 |
49 |
126 |
156 |
363 |
0 |
| ODI |
0 |
0 |
6 |
43 |
109 |
175 |
1501 |
15 |
| CDI |
0 |
0 |
1 |
14 |
37 |
57 |
1996 |
1977 |
| VCDI |
0 |
0 |
0 |
2 |
6 |
1 |
21 |
0 |
|
Date: 2020-08-03:
| 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 |
21099 |
6274 |
2752 |
662 |
224 |
74 |
51 |
0 |
| OW |
0 |
0 |
101 |
161 |
75 |
50 |
83 |
0 |
| VODI |
0 |
0 |
60 |
137 |
121 |
143 |
193 |
0 |
| ODI |
0 |
0 |
8 |
67 |
109 |
307 |
1414 |
76 |
| CDI |
0 |
0 |
4 |
11 |
19 |
130 |
2241 |
1502 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
11 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21099 |
6274 |
2767 |
705 |
253 |
96 |
106 |
0 |
| OW |
0 |
0 |
90 |
139 |
94 |
84 |
164 |
0 |
| VODI |
0 |
0 |
49 |
95 |
81 |
168 |
530 |
0 |
| ODI |
0 |
0 |
15 |
77 |
81 |
134 |
1636 |
165 |
| CDI |
0 |
0 |
4 |
21 |
38 |
222 |
1542 |
1413 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
0 |
15 |
0 |
|
Date: 2020-08-05:
| 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 |
22865 |
5836 |
1484 |
692 |
208 |
93 |
54 |
0 |
| OW |
0 |
4 |
77 |
175 |
76 |
74 |
117 |
0 |
| VODI |
0 |
1 |
12 |
117 |
139 |
145 |
335 |
0 |
| ODI |
0 |
0 |
2 |
35 |
90 |
306 |
1672 |
226 |
| CDI |
0 |
0 |
2 |
6 |
18 |
102 |
1788 |
1395 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
0 |
10 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22865 |
5839 |
1493 |
706 |
230 |
124 |
145 |
0 |
| OW |
0 |
2 |
59 |
163 |
70 |
87 |
210 |
0 |
| VODI |
0 |
0 |
15 |
102 |
109 |
146 |
661 |
0 |
| ODI |
0 |
0 |
10 |
43 |
81 |
145 |
1583 |
251 |
| CDI |
0 |
0 |
0 |
11 |
43 |
218 |
1364 |
1370 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
0 |
13 |
0 |
|
Date: 2020-08-07:
| 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 |
23163 |
5926 |
1209 |
686 |
151 |
70 |
63 |
0 |
| OW |
0 |
6 |
104 |
152 |
67 |
82 |
117 |
0 |
| VODI |
0 |
0 |
26 |
175 |
103 |
163 |
442 |
0 |
| ODI |
0 |
0 |
0 |
37 |
94 |
221 |
1877 |
386 |
| CDI |
0 |
0 |
0 |
19 |
22 |
123 |
1485 |
1178 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
10 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23163 |
5922 |
1250 |
704 |
169 |
121 |
182 |
0 |
| OW |
0 |
8 |
67 |
139 |
57 |
73 |
247 |
0 |
| VODI |
0 |
2 |
20 |
139 |
96 |
147 |
755 |
9 |
| ODI |
0 |
0 |
2 |
60 |
68 |
129 |
1467 |
295 |
| CDI |
0 |
0 |
0 |
26 |
47 |
190 |
1334 |
1260 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
1 |
9 |
0 |
|
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