[Talk-us] NHD Imports

Clifford Snow clifford at snowandsnow.us
Sun Oct 28 00:35:42 GMT 2012


On Sat, Oct 27, 2012 at 5:15 PM, Mike N <niceman at att.net> wrote:

> On 10/27/2012 7:28 PM, Clifford Snow wrote:
>
>> Before I bring this up on the imports list, I thought I'd ask the US
>> community about their opinion about importing the data.
>>
>
>   I agree that it is a good idea to import NHD.   It is an asset when
> doing surveys and updates: you can review it for any changes and make
> corrections.
>

Most of the area's I'm mapping are too remote and not likely to ever be
surveyed in person.


>   - Use the latest tools and techniques to create the NHD dataset.
>   - Review tag assignments for the area of interest.
>   - Merge it into the existing ways - preserve existing hydro work when
> possible. For water features that you created yourself, you can decide
> whether to replace with NHD data.
>

Agreed. Usually if there is existing data, it's data someone has manually
added and is often better than NHD. That's way a bulk import isn't
practical.


  On the other hand, I believe NHD should not be imported into US "OSM Edit
> deserts".   It's best to wait until there is a community who wants an NHD
> import.   In the meantime, the NHD for that area may be updated and when it
> is finally imported, it will be as fresh as possible.


Please help me understand what you mean by OSM Edit deserts. The areas I'm
looking at are mostly untouched except for the original TIGER and GNIS
imports. Are you suggesting not importing into those areas?




-- 
Clifford
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