[Talk-GB] Environment agency LIDAR tiles

[SK53]

Hi Tom,

I'm not aware of a tiled dataset directly usable within OSM editors. The
tiled data I am aware of are:

* As background layers on the NLS maps site
* On houseprices.io (AFAIK the original EA releases)

The newer Lidar data (post 2018) has much more extensive coverage at 1 m
resolution, but I'm not sure how much of the country has been covered yet.

When I've wanted to use this Lidar data, I've just downloaded tiles (the
old data is in 1km square tiles, the new data in 5 km square tiles) and
processed them in QGIS to generate a hillshaded DSM & a hillshaded DSM-DTM
delta layer, which can be georeferenced & used in JOSM (via the imagery
import plugin). Hillshades are often the most useful for interpretation.
Other things might be to pull buildings from OSM into QGIS & extract
maximum heights (from a DSM-DTM delta) for the buildings. I've also
extracted contours at 1 m intervals & used something like the 3m contour to
estimate building centroids to compare offset of OSM buildings (doesn't
work for all if trees are nearby).

Jerry

On Wed, 3 Mar 2021 at 12:50, Tom Crocker <tomcrockermail at gmail.com> wrote:

> Sorry if this has been discussed before, I've just joined. I have seen
> some threads from 2015 discussing the Environment Agency LIDAR data, which
> seems to confirm my understanding that it would be fine to use the data in
> OSM. Are there any tile servers available for this, or some method of
> adding overlays to JOSM for example? I think it would be really useful in
> wooded areas.
>
> Thanks
>
> Tom
>
> _______________________________________________
> Talk-GB mailing list
> Talk-GB at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-gb
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-gb/attachments/20210303/53011282/attachment.htm>