[Talk-us-massachusetts] New Mass GIS Newletter link

[Andy Anderson]

Lakes in particular are problematic as their shorelines can change dramatically depending on precipitation.

— Andy

> On Sep 30, 2021, at 9:44 PM, Alan Bragg <alan.d.bragg at gmail.com> wrote:
> 
> I'd like to know where boundaries in osm are not near property edges in the assessors parcel. Think MassGIS L3 Parcels.
> Maybe someone could figure out how to compare the new lidar with the edges of lakes and rivers.
> I imagine will find enough to keep us busy by comparing the new master address file with our data.
> 
> 
> On Thu, Sep 30, 2021 at 4:51 PM Greg Troxel <gdt at lexort.com <mailto:gdt at lexort.com>> wrote:
> 
> Alan Bragg <alan.d.bragg at gmail.com <mailto:alan.d.bragg at gmail.com>> writes:
> 
> > Who's got the chops to compare state data with ours?
> >
> > https://mailchi.mp/a8c6b503b1f3/september-massgis-gisette-newsletter-4974530?e=5859c57ea3 <https://mailchi.mp/a8c6b503b1f3/september-massgis-gisette-newsletter-4974530?e=5859c57ea3>
> 
> I have been doing more and more with qgis and am heading for being able
> to diff MassGIS layers and data in OSM that seems like a layer
> (e.g. buildings, roads).  No real time estimate, but I feel like over
> the last year I've gotten more clueful with qgis.
> 
> I read the gisette, and I wonder which MassGIS data in particular you
> are wondering about diffing?   The layers I'd want to compare are:
> 
>   master address database
>   buildings
>   roads
> 
> and then secondarily
> 
>   libraries, schools, hospitals, police/fire, etc.
> 
>   culverts (MassDOT)
> 
> and probably much harder
> 
>   open space
>   hydrography
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