This is exciting stuff - I have always loved maps and this is like a 3d map - local Tony Wilton has made available the Randwick LIDAR scan. See more re LIDAR on this blog here and here - LIDAR - Light Detection And Ranging - measures the height of the ground surface and other features in large areas of landscape with a resolution and accuracy hitherto unavailable, except through labour-intensive field survey or photogrammetry.
Photos: Google map showing LIDAR in our area and below the terrain map
This is worth a look indeed - it is not the actual height data, which is copyrighted, but an image Tony has processed from the data and converted to a geo-referenced overlay which can be displayed in both Google Maps and Google Earth. This is with the kind permission of both PTS, the copyright holders, and the Randwick Historical Society.
Some have already had quite a detailed look at the scans and noticed un-documented 'Hill fort' earthworks and possibly some new Roman evidence. Further analysis is necessary, but it is a great teaching resource. The LIDAR features are becoming addictive to some as folk ago out to find them on the ground - Tony for example has found the 'Bird in Hand Cross Dyke' - so obvious on the ground that it seems surprising it doesn't appear on the OS map. Perhaps it should rather be Wilton's Dyke after Tony if transpires to be a dyke....
There was a good article in The Runner about LIDAR saying lots more -0 and also giving the details below so that folk could try it out - I was one of the guinea pigs looking at it before the article went in - Google Maps seem to work fine for me but Google Earth less well...anyhow enjoy exploring our terrain!
1. Open Google Earth
2. Goto the Places box/ (Right click) on the My Places folder
3. Select Add/Network Link = dialogue box
4. Enter the ‘Name’ You want to call it (in the top field)
5. Enter the ‘Link’ (internet address) of the KML/KMZ file (in the bottom ‘Browse’ field)
6. Click ‘OK’
7. The lidar placemark should be added to the ‘temporary places’ folder
8. Open it and explore
1. Open Google Maps, from a web browser
2. Go to the ‘Search the map’ box
3. Enter the ‘Link’ (internet address) of the KML/KMZ file
4. Click ‘Search Maps’ button
5. The LIDAR tiles and write up should load to the map.