Often I obtain LiDAR data for concept studies and conventional survey (in .dxf format) over a small portion of this. The LiDAR typically covers the broader area and is used for broader studies, catchments, optioneering and concept design. The survey may either be existing survey (for other projects) and provided with the LiDAR, or obtained subsequently specifically for detailed design.
I find that whilst the LiDAR data looks relatively correct, that when compared to the more accurate conventional survey there are often discrepancies. Often the supplier of the data is not familiar with datums or the history of the data, which may also be the cause of some of the discrepancies.
If the discrepancy is relatively uniform, it is relatively straightforward to adjust the LiDAR data. However often this is not the case.
Is there a method to "adjust" LiDAR data to more accurate survey data? I imagine it would be similar to georeferencing of aerial imagery, but in three dimensions.
I understand that it will never be as accurate, but even if it just looks better I would be happy.