Validation of sea ice concentration - American sector
 Bulletin date: 2021-08-10
 Data source: OSI SAF N.H. sea ice concentration
 Model vs. observations, sea ice class contingency tables
 Date: 2021-08-10:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 1586 | 4881 | 0 | 136 | 31 | 4 | 0 | 0 |  
| OW | 0 | 137 | 0 | 142 | 37 | 30 | 5 | 0 |  
| VODI | 0 | 111 | 0 | 454 | 1303 | 629 | 164 | 0 |  
| ODI | 0 | 59 | 0 | 441 | 3364 | 3986 | 2209 | 0 |  
| CDI | 0 | 10 | 0 | 248 | 3387 | 6681 | 4716 | 0 |  
| VCDI | 0 | 0 | 0 | 3 | 91 | 216 | 268 | 0 |  | 
 Date: 2021-08-12:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 2254 | 4120 | 0 | 278 | 102 | 11 | 1 | 0 |  
| OW | 0 | 136 | 0 | 127 | 169 | 78 | 4 | 0 |  
| VODI | 0 | 170 | 0 | 450 | 1549 | 825 | 106 | 0 |  
| ODI | 0 | 74 | 0 | 480 | 3243 | 4211 | 1898 | 79 |  
| CDI | 0 | 11 | 0 | 311 | 2992 | 5412 | 5396 | 343 |  
| VCDI | 0 | 0 | 0 | 14 | 62 | 146 | 273 | 4 |  | 
 Date: 2021-08-14:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 2259 | 4148 | 0 | 292 | 171 | 124 | 16 | 0 |  
| OW | 0 | 152 | 0 | 121 | 238 | 83 | 39 | 0 |  
| VODI | 0 | 249 | 0 | 461 | 1572 | 873 | 181 | 1 |  
| ODI | 0 | 104 | 0 | 565 | 3097 | 4476 | 1753 | 148 |  
| CDI | 0 | 15 | 0 | 463 | 2847 | 4759 | 4886 | 834 |  
| VCDI | 0 | 0 | 0 | 11 | 46 | 50 | 257 | 38 |  | 
 Date: 2021-08-16:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 1523 | 4817 | 0 | 425 | 156 | 132 | 5 | 0 |  
| OW | 0 | 183 | 0 | 158 | 259 | 67 | 25 | 0 |  
| VODI | 0 | 351 | 0 | 731 | 1497 | 790 | 193 | 9 |  
| ODI | 0 | 131 | 0 | 925 | 3569 | 4362 | 1879 | 369 |  
| CDI | 0 | 51 | 0 | 664 | 2365 | 4337 | 4558 | 359 |  
| VCDI | 0 | 2 | 0 | 10 | 62 | 73 | 290 | 2 |  | 
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