[Talk-GB] Environment agency LIDAR tiles

[Tom Crocker]

I got it working fine in JOSM thanks Rob, and it's going to be very helpful
in wooded areas and for the outline of old quarries and ditches. I think
there isn't a 2019 edition of the digital surface model, but the 2017
1-metre one can be accessed at
wms:
https://environment.data.gov.uk/spatialdata/lidar-composite-digital-surface-model-dsm-1m/wms?FORMAT=image/png&TRANSPARENT=TRUE&VERSION=1.3.0&SERVICE=WMS&REQUEST=GetMap&LAYERS=LIDAR_Composite_DSM_1m&STYLES=&CRS=EPSG:4326&WIDTH={width}&HEIGHT={height}&BBOX={bbox}
Note another different projection and again JOSM couldn't figure it out
from the getCapabilities address (but Vespucci could).

With this I noticed water bodies tend to be transparent so a good way of
identifying potential water features for a ground survey.

I think for England there is also:
2m DTM 2019 (>85% coverage)
https://data.gov.uk/dataset/67639c1b-ac0e-492a-abba-02ed436f826f/lidar-composite-dtm-2019-2m
2m DSM 2017 (~75% coverage)
https://data.gov.uk/dataset/fba12e80-519f-4be2-806f-41be9e26ab96/lidar-composite-dsm-2017-2m
50cm DTM 2017
https://data.gov.uk/dataset/5f6f7d5b-3f4c-4476-bfb8-cda490c9cf0e/lidar-composite-dtm-2017-50cm
50cm DSM 2017
https://data.gov.uk/dataset/0ab507af-cd91-40cb-8524-3efafc267211/lidar-composite-dsm-2017-50cm
25cm DTM 2017
https://data.gov.uk/dataset/3122ade0-2d0d-4ed8-bb1f-e8ce74d0a56b/lidar-composite-dtm-2017-25cm
25cm DSM 2017
https://data.gov.uk/dataset/8b007edd-a886-44ca-9fa0-2ee2efc1248d/lidar-composite-dsm-2017-25cm

Note that there's decreasing coverage at the higher resolutions.

It looks like there aren't ready-made tiles for Scotland or Wales currently?

Jez, good point, although as it happens in all my searching I hadn't come
across that particular page! I'm also wondering if it would be appropriate
to add these to https://josm.openstreetmap.de/wiki/Maps

Cheers

Tom

On Thu, 4 Mar 2021 at 08:47, Jez Nicholson <jez.nicholson at gmail.com> wrote:

> I'm loving the detail of roof-shapes that can be retrieved from that
> LIDAR. The data should be really useful for increasing the UK-wide coverage
> of buildings.
>
> and....remember that talk on Talk-GB is just that, 'talk'....please,
> please, please build the group knowledge by updating the wiki
> https://wiki.openstreetmap.org/wiki/English_Environment_Agency_LIDAR
>
> On Wed, Mar 3, 2021 at 11:51 PM Tom Crocker <tomcrockermail at gmail.com>
> wrote:
>
>> That's great thanks Rob. I've loaded it up in Vespucci and it's working
>> fine - will try JOSM in the morning! I'd tried various changes to the url
>> in JOSM but no luck. The only time I got an image it was the legend tiled
>> across the country 😂
>>
>> I also meant to say I'd found it with an OSM background at
>> https://enfarchsoc.org/opendata/ and the tiles are available via Flickr
>> without any georeferencing
>> https://www.flickr.com/photos/environmentagencyopensurveydata/albums
>>
>> On Wed, 3 Mar 2021, 23:16 Rob Nickerson, <rob.j.nickerson at gmail.com>
>> wrote:
>>
>>> Tom, I think the layer is not reporting it's available projections
>>> properly which is tripping JOSM up. I can get this layer to display in JOSM
>>> by manually using this:
>>>
>>> wms:
>>> https://environment.data.gov.uk/spatialdata/lidar-composite-digital-terrain-model-dtm-1m-2019/wms?FORMAT=image/png&TRANSPARENT=TRUE&VERSION=1.3.0&SERVICE=WMS&REQUEST=GetMap&LAYERS=1&STYLES=&CRS=EPSG:3857&WIDTH={width}&HEIGHT={height}&BBOX={bbox}
>>>
>>> I didn't see a way to put a layer manually so I first went to Imager->
>>> Imagery Preferences -> +TMS. I paste this url in and give it a name. JOSM
>>> will then store it with "tms:" in front. Manually edit the text box to take
>>> that out leaving just the text string above. That now shows.
>>>
>>> Unfortunately, the traditional hillshade style isn't provided in the
>>> right projection for JSOM so we're stuck with this layer which measures
>>> height.
>>>
>>> Best regards,
>>> Rob
>>>
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