[Imports] NHD Data Import

Mike N niceman at att.net
Sat May 8 19:42:38 UTC 2021


On 5/8/2021 2:32 PM, Kevin Kenny wrote:
> We don't import NHD data at scale "hands off", simply because the 
> project was started and proved to be a disaster - very poor data quality 
> and issues with connectivity - streams did not connect with their 
> downstream neighbours, were mapped opposite the direction of flow, and so on
> 
> If you're using a tool such as JOSM to do the uploads, you keep the 
> uploads to a manageable scale, and you are indeed reviewing all the data 
> manually and applying the validation checls, then there really are no 
> issues.

   I agree with this - no mass NHD imports these days.  However if 
everything has been reviewed against current aerials, there should be no 
problem.



More information about the Imports mailing list