Surrey Air Survey

Surrey Air Survey is an aerial imagery data set covering Surrey (UK). It was provided by Surrey Heath Borough Council, ITO World and others. The survey flights which took place ~2007/2008, were actually commissioned by Surrey Council and released to us as open data. Although becoming quite old now, the imagery is hosted on OSM servers for use within editors, and to browse online: surrey.aerial.openstreetmap.org.uk

2010 announcement blog post with examples . The resolution is approximately equal to, perhaps slightly superior to that of bing. (Compare surrey air survey with bing) At the time this data, came before the OpenStreetMap community were given access to use bing imagery, and so the Surrey Air Survey was a huge treat in terms of resolution. (Further Quality discussion)

Tile URLs

The tile server URL template (with zoom levels up to 22) is:

https://{switch:a,b,c}.surrey.aerial.openstreetmap.org.uk/layer/gb_surrey_aerial/{zoom}/{x}/{y}.png

Example – https://a.surrey.aerial.openstreetmap.org.uk/layer/gb_surrey_aerial/20/523222/349993.png

For historical reference, the original tile server (with zoom levels up to 19) is:

https://gravitystorm.dev.openstreetmap.org/surrey/{zoom}/{x}/{y}.png

Example – https://gravitystorm.dev.openstreetmap.org/surrey/19/261364/174890.png

Using the images

Potlatch

In the Options, choose "UK: Surrey Air Survey" from the list of sources at the top-left of the panel.

JOSM

Use the SlippyMap plugin. Instructions for adding custom tile sources can be found at http://wiki.openstreetmap.org/wiki/JOSM/Plugins/SlippyMap#Custom_tile_URLS. Use:

• slippymap.custom_tile_source_1.name = Surrey Air Survey (Or any name you want)
• slippymap.custom_tile_source_1.url = http://gravitystorm.dev.openstreetmap.org/surrey/
• slippymap.custom_tile_source_1.ext = png (optional)
• Minimum zoom: 8
• Maximum zoom: 19

Merkaartor

In the Tools menu, choose TMS Servers and add the following to the boxes:

Name: Surrey Air Survey (or whatever)
Server address: gravitystorm.dev.openstreetmap.org
Path: /surrey/%1/%2/%3.png
Tile size: 256
Minimum zoom: 8
Maximum zoom: 19

Hit Add and select the images in the TMS adapter list in any Map layer.

Source Tag

The source tag to be used when tracing this data is as follows:

source=sas

License

Imagery is provided to OSM expressly for tracing. The source imagery is licensed under ODbL