Description
Espoo's ground data consists of laser scans carried out in 2017 and 2013 and the ground points interpreted from them. The data covers the entire city and the Kauniainen region. Laser scanning data describes the Earth's surface and is a three-dimensional point-like dataset.
The Espoo soil datasets are published as LAZ and DWG files by grid . The coordinate system is ETRS-GK25 (EPSG:3879) and the height system is N2000.
The surface score published as open data consists of the "Model Key Points" of the surface model, where a tolerance of +/- 5 cm was allowed for the thinned surface model. Thus, the accuracy of the ground surface points is about 5-10cm.
##2017
The bowling was carried out on 2-3 May 2017 and thus depicts the earth's surface at that time. The shooting altitude was 850 m and the target altitude accuracy on hard surfaces was 5 cm. The spot density of the bowling was good 20 pst/m2.
##2013
The bowling was carried out from 7 to 16 May 2013 and thus depicts the earth's surface at that time. The shooting altitude was 500 m and the target altitude accuracy on hard surfaces was 5 cm. The spot density of the bowling was good 10 pst/m2.
Resources
| Name |
Format |
Description |
Link |
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0 |
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https://www.avoindata.fi/data/dataset/756d16bb-07fb-43f3-ace3-4cc134963918/resource/99306ae9-8b5a-49ec-90b3-13d9f7c05c04 |
Tags
- korkeuskäyrät
- laserkeilaus
- lidar
- korkeusmallit