[Open-data-census] Better definition of National Map

Sun Oct 6 00:35:07 BST 2013

Tracey: geogratis.ca (the link you put for national map) has tons of datasets, many of which are not national maps. A more specific link would be more suitable for "national map".

Andrew: I am not the designer of this census. The "use case" brainstorm you propose is something that I would assume the designers have already accomplished. My email asks the designers for more clarity than they currently provide.

My questions remain open (and are not specific to Canada's case) and I would still appreciate direction from the people who designed the questionnaire.

Thanks,

James

On 2013-10-05, at 7:04 PM, Andrew Stott wrote:

> Tracey, James
>  
> When working on Postal Codes I found it useful to consider some common use cases of the data – that helped me understand what the essential data would have to be, and to craft the definition accordingly.  It might be worth describing typical use cases for electoral and finances – and for maps too, even though the Canada case is solved.
>  
> Regards
>  
> Andrew
>  
> From: open-data-census-bounces at lists.okfn.org [mailto:open-data-census-bounces at lists.okfn.org] On Behalf Of Tracey P. Lauriault
> Sent: 05 October 2013 23:34
> To: James McKinney
> Cc: open data census
> Subject: Re: [Open-data-census] Better definition of National Map
>  
> james, If you look at my link, i have geobase as the framework data set for canada.  I think that will do.
> 
> It is the most open and versatile, maps are the easiest part of the census for canada as there are many excellet openly available maps at multiple scales/  There is also geogratis which contains many maps
> 
> I would not fuss over this one.
> 
> But now you are getting a sense at the nuances of the questions which is good and can see my dilema.  The stuff I added was find on maps, the item i have questions about is statistics, legal, electoral and finances, can you focus on those please?
> 
> Please go to my first email on this topic where I sought help.
> 
> Cheers
> t
>  
> Cheers
> t
>  
> 
> On Sat, Oct 5, 2013 at 11:23 PM, James McKinney <james at opennorth.ca> wrote:
> Can we get a better definition of "National Map"? Currently:
> 
> > High level map at a scale of 1:250,000 or better (1cm = 2.5km)
> 
> In Canada, we have a lot of maps (CanImage, CanVec, CanMatrix, CanTopo, Toporama, Landsat, Ground Control Database, Canadian Digital Elevation Data, National Topographic Data Base, Canada Land Inventory).
> 
> I figure it would be longer for me to describe all the kinds of maps that we have than for you to more accurately describe what kind of "national map" you are looking for. Here are some leading questions:
> 
> - Would a simple cartographic boundary be sufficient (coastline plus country borders)?
> 
> - If not, what should it show? Should the map be topographic (show elevation)? Should it show land cover (forests versus lakes, etc.)? Should it be satellite images?
> 
> - What sort of data should it contain? For example, if the dataset is a set of images (Tiff), should they be georeferenced (GeoTiff)?
> 
> - Does vector versus raster matter? Print-ready?
> 
> Thanks,
> 
> James
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> 
> 
> 
> --
> Tracey P. Lauriault
> http://traceyplauriault.wordpress.com/2013/07/23/moving-to-ireland/
> https://gcrc.carleton.ca/confluence/display/GCRCWEB/Lauriault
> http://datalibre.ca/

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