Magnetic Variation Determination Method
Code for method of determining magetic variation
United States Geological Survey, Surface Water User Group
| Code | Sort Order | Valid Flag | Name | Description |
|---|---|---|---|---|
| UNSP | 1 | true | Unspecified | The method to determine magnetic variation was not specified. |
| ONST | 2 | true | On-site | Magnetic variation was determined on-site. |
| PONS | 3 | true | Previous on-site | Magnetic variation was determined previously on-site. |
| NBST | 4 | true | Nearby site | Magnetic variation was determined at a nearby site. |
| MODL | 5 | true | Model | Magnetic variation was determined using a model. |