Land | Observationsplats | Införda | År | Qualitative Value | Ref. |
---|---|---|---|---|---|
Alaska | Bering Sea Shelf | 1990 - 1990 | 122396 | ||
Alaska | Kuskokwim Delta - Norton Sound | 1979 - 1979 | 119531 | ||
Alaska | Norton Sound | 1976 - | 119531 | ||
Alaska | Norton Sound | 1979 - 1979 | 119531 |