[HOT] Mapping clouds and low resolution imagery
Dan Joseph
dan.b.joseph at gmail.com
Mon Apr 11 22:40:06 UTC 2016
Hi John,
While Bing imagery is probably the most commonly used imagery for tracing.
There are a variety of other sources. For example, the State Department
through their MapGive initiative (http://mapgive.state.gov/) often provides
recent DigitalGlobe imagery for specific tracing tasks. Also, data might
come from an import (and not having been traced from imagery). Having some
sort of measure of "completeness" of OSM is a difficult question. What do
you use for the denominator in the equation? Mikel Maron wrote a blog post
that might be of interest (
https://www.mapbox.com/blog/how-complete-is-openstreetmap/).
Sounds like you're working on a cool project.
All the best,
Dan
On Sun, Apr 10, 2016 at 6:13 PM, John Gordon <jgordon at gri.ca> wrote:
> I am developing a project to incorporate HOT/OSM data into an application
> to plan for and manage food security emergencies in developing countries.
> The HOT/OSM data is converted into a shapefile using the HOT export tool (
> http://export.hotosm.org/en/ ) to link to other data in QGIS. To begin
> with I am using ground transportation data and population cluster data from
> OSM. I would also like to include information on impediments to mapping
> including cloud cover and areas of low resolution imagery in BING to permit
> identification of potential problems and permit some forward planning. I
> have looked for tags or presets for identifying these impediments but have
> not been able to find them. Can anyone help?
>
> For the moment I have tested a workaround using the OSM AREA tag and the
> keywords "Cloud" or "Lowresolution" as the NAME. I can then easily create
> a shapefile using the Esri SHP (OSM Schema) and the OSM Data Model in the
> HOT export tool. Would this be an acceptable option?
>
> Thanks
> John
>
>
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