[HOT] [info-hotosm] Reference Project #1030 Nepal Earthquake

Steve Bower sbower at gmavt.net
Wed May 6 17:53:27 UTC 2015


I don't think Chad's IDP guidance document (though very helpful) addresses
the issue of spatial accuracy of the DG imagery, raised by Ross. I'm going
to post that as a separate issue with more detail.

On Wed, May 6, 2015 at 4:35 AM, Heather Leson <heather.leson at hotosm.org>
wrote:

> HI Ross, sorry for my delayed response. It is best if you ask your
> questions on the main Hot at openstreetmap.org mailing list.
>
> Chad provided this guidance document on IDPs
> http://hotosm.github.io/tracing-guides/guide/Nepal.html#IDP%20Collection%20Guidance
>
> Hope this helps
>
> Heather
>
> On Tue, May 5, 2015 at 12:40 AM, Ross Taylor <ross at byrdtechnology.com>
> wrote:
>
>> Hi, I am seeing many more IDP sites using DigitlaGlobe imagery vs Bing. I
>> can toggle between the two image sets, but they are significantly
>> nonaligned. I created a landuse=brownfield tagged area which aligns with
>> Bing, but if I mark and tag the individual IDP sites showing up in
>> DigitalGlobe imagery, the brownfield and idp are not going to be aligned.
>> I want to help out as much as possible and would like the data to be
>> correct. Please advise, thanks!
>>
>> Note: I tried to adjust alignment but it fixes one area and creates more
>> offset in other areas.
>>
>> -Ross
>>
>> Sent from mobile
>
>
>
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