[Talk-us] NHD Dataset

Adam Schreiber sadam at clemson.edu
Mon Feb 16 15:56:32 GMT 2009


On Mon, Feb 16, 2009 at 10:53 AM, Rev. Theodore Book <tbook at libero.it> wrote:
> It looks like you are right up the road from me!  I can send you the scripts
> that I used, if you like.

Sure.

>
> Adam Schreiber wrote:
>>
>> On Mon, Feb 16, 2009 at 10:37 AM, Theodore Book <tbook at libero.it> wrote:
>>
>>>
>>> * In some places, a lot of work has been done manually entering water
>>> features.  While I expect the NHD data is generally better, we have the
>>> tough issue of respecting other people's work (and not duplicating
>>> things in the database)
>>>
>>
>> I would be willing do merge my own basin or compare the data first
>> before upload.
>>
>> http://openstreetmap.org/?lat=34.636&lon=-82.845&zoom=10&layers=B000FTF
>>
>> Cheers,
>>
>> Adam
>>
>>
>>>
>>> * The upload speed seems to be a limiting factor - it is taking me some
>>> 70-80 hours to upload the one basis with bulk_upload.pl.  I am not sure
>>> how many basins there are in the country, but it seems as though it
>>> could take a year if it were all done sequentially.
>>>
>>> * The scripts I used to convert the shapefiles to OSM only supported the
>>> features I found in this one basin.  They should be easy to extend, (or
>>> someone else may have better ones), but they would need to be tested.
>>>
>>> Theodore
>>>
>>> Ian Dees wrote:
>>>
>>>>
>>>> On Mon, Feb 16, 2009 at 9:00 AM, Theodore Book <tbook at libero.it
>>>> <mailto:tbook at libero.it>> wrote:
>>>>
>>>>    If you haven't been following the wiki page, I have been doing some
>>>> work
>>>>    on the NHD dataset, and feel that I have gotten a decent OSM
>>>> conversion
>>>>    of the Etowah river watershed (north and northwest of Atlanta).  I am
>>>>    going ahead and uploading that basin.  If you are interested in the
>>>>    conversion, it would be great if you could take a look at it and give
>>>> me
>>>>    any feedback you may have.  Thanks.
>>>>
>>>>
>>>> Excellent work! I think the next step is to list all of the subbasins
>>>> and start converting/importing.
>>>>
>>>> What is everyone's opinion on waiting for the API 0.6 upgrade? I'll bet
>>>> we could sneak in a complete import before...
>>>>
>>>> Also, do we want to have individuals make requests for data via the NHD
>>>> website or should I make another DVD-data-dump request to the NHD folks
>>>> and import the whole thing at once?
>>>>
>>>>
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>>>>
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>>>
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>>
>>
>




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