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

[Tom Parent]

Here's an AGOL map I created with some of the more useful MassGIS layers.
OSM basemap.  I use this all the time for diff checking.

https://arcg.is/1W8zaj

Cheers,
Tom

On Thu, Sep 30, 2021 at 10:34 PM Andy Anderson <aanderson at amherst.edu>
wrote:

> 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> wrote:
>
>>
>> Alan Bragg <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
>>
>> 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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