Validation of sea ice concentration - American sector
 Bulletin date: 2025-09-09
 Data source: OSI SAF N.H. sea ice concentration
 Model vs. observations, sea ice class contingency tables
 Date: 2025-09-09:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 14692 | 5321 | 9 | 55 | 1 | 0 | 0 | 0 |  
| OW | 117 | 640 | 12 | 45 | 3 | 0 | 0 | 0 |  
| VODI | 207 | 1778 | 54 | 270 | 45 | 14 | 3 | 0 |  
| ODI | 130 | 2440 | 123 | 1201 | 379 | 275 | 78 | 0 |  
| CDI | 1 | 270 | 35 | 1828 | 2785 | 2422 | 614 | 0 |  
| VCDI | 0 | 0 | 0 | 32 | 1559 | 6125 | 1994 | 0 |  | 
 Date: 2025-09-11:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 14916 | 6366 | 33 | 107 | 8 | 0 | 0 | 0 |  
| OW | 52 | 663 | 12 | 44 | 9 | 0 | 0 | 0 |  
| VODI | 86 | 1505 | 36 | 235 | 62 | 7 | 6 | 0 |  
| ODI | 16 | 1657 | 82 | 897 | 382 | 198 | 110 | 0 |  
| CDI | 0 | 262 | 41 | 1835 | 2706 | 2021 | 656 | 0 |  
| VCDI | 0 | 7 | 1 | 132 | 1722 | 6300 | 2385 | 0 |  | 
 Date: 2025-09-13:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 15197 | 7271 | 32 | 173 | 15 | 6 | 0 | 0 |  
| OW | 55 | 467 | 3 | 76 | 8 | 0 | 0 | 0 |  
| VODI | 71 | 904 | 15 | 236 | 34 | 19 | 1 | 0 |  
| ODI | 16 | 1374 | 61 | 754 | 356 | 195 | 73 | 0 |  
| CDI | 0 | 233 | 34 | 1509 | 2174 | 1623 | 608 | 0 |  
| VCDI | 0 | 4 | 0 | 267 | 1962 | 6061 | 3670 | 0 |  | 
 Date: 2025-09-15:
 | Forecast | 
 | 
|  | observations |  
|  | Ice free | Ice free near MIZ
 | OW | VODI | ODI | CDI | VCDI near MIZ
 | VCDI |  
| m o
 d
 e
 l
 | Ice free | 16011 | 7315 | 43 | 233 | 68 | 8 | 0 | 0 |  
| OW | 84 | 269 | 5 | 44 | 17 | 2 | 0 | 0 |  
| VODI | 167 | 498 | 13 | 154 | 69 | 63 | 16 | 0 |  
| ODI | 157 | 1074 | 49 | 567 | 280 | 311 | 91 | 0 |  
| CDI | 20 | 262 | 58 | 1161 | 1624 | 1359 | 546 | 0 |  
| VCDI | 2 | 23 | 9 | 388 | 1609 | 5059 | 5829 | 0 |  | 
Generated by /metno/routine/sms/V3/neXtSIvalidation/neXtSIwebPageSector.sh Fri Sep 19 03:27:27 UTC 2025 on arcval2