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Mike Peterson here. In the use, we use the term “differential GPS”. You were clearly talking about that with your RTK base stations. Is the term not used here?
Hi Mike. I certainly grew up with that term (or differential correction) but RTK and such like has become more the new norm - an excellent first question I think!...
A second question would be on Lidar. Does UK have a national Lidar mapping program? It’s done in the US by individual cities/counties - sometimes a consortium of cities/counties. But, not on a national level.
Isn’t RTK providing differential information too?
The new technology is becoming easier to use. Is there a danger that the surveyor’s traditional role will be changed?
for remoter overseas fieldwork, we always needed to bring out own base stations. in remote areas, do we still have the problem of long baselines to the nearest GNSS base station in a global network?
Scottish Govt is coleting lidar
We are on Phase 3 and there is a plan to cover entire country
Available a thttps://remotesensingdata.gov.scot/
The Environment Agency has done England/Wales - https://wiki.openstreetmap.org/wiki/English_Environment_Agency_LIDAR - https://www.getmapping.com/products/lidar-data/lidar-data-environment-agency
Noone has cameras on so I didn't either
And for Wales: https://lle.gov.wales/catalogue/item/LidarCompositeDataset/?lang=en
You mentioned the use of UAVs. Where is the major application? How much does the battery limitation limit its use?
Thank you for your talk David. Do you think recent developments in photography will translate to photogrammetry? i.e. mirrorless cameras
do you think the data captured by satellite based LIDAR offers opportunities to improve terrain models in e.g. Africa?
No problem, thank you!
many thanks David. excellent presentation
Thanks for the interesting talk.