Back in July i introduced the Musaicum EU-plus – a 10m resolution satellite image mosaic of Europe. I have now finalized two additional variants of this image that i would like to introduce here.
Both of them are fairly specialized data sets, therefore i did not so far list them in my products. I mostly produced these for my internal use in the production of my own higher level visualization products. But they are also available for external use on request.
Shading compensated image mosaic
I already provided a preview for this when introducing the standard mosaic in July. In addition to the standard surface reflectance image product, i am offering also a shading compensated version. This is not based on the very poor quality L2A data provided by ESA but uses a custom algorithm developed by me specifically for visualization applications.
This shading compensated version of the mosaic has now been produced and evaluated for the full coverage area of the Musaicum EU-plus.
Vegetation and water map
In addition to the visual color images i also produced a fractional landcover data set with the same grid specifications – comparable to similar data sets i had produced for regional mosaics before.
This data specifies the fractions of a pixel covered by
- herbaceous vegetation
- woody vegetation
- bare ground
Visualized using different colors for the different landcover classes this looks like the following:
This data is likewise available for the full coverage area of the Musaicum EU-plus but should be regarded more experimental w.r.t. the herbaceous/woody vegetation, in particular at higher latitude where low sun angles and the resulting differences in illumination make a consistent classification difficult.
Application examples in maps
Here a few examples how this new data can be used in map production. These are in web mercator projection at z13 and z12.
Application examples in 3d
One of the main uses of the shading compensated imagery is of course the production of 3d views with a freely adjustable lighting independent from the light direction when the images were taken. Here a demonstration of that.
And another example from the Alps – compare also to this older view.
Further 3d rendering examples:
Apart from the Musaicum EU-plus these visualizations are using data from: OpenStreetMap contributors – ODbL, L’Institut national de l’information géographique et forestière (IGN) – Licence Ouverte 2.0, Istituto Nazionale di Geofisica e Vulcanologia (INGV) – CC-BY 4.0, Bundesamt für Landestopografie (swisstopo), Centro Nacional de Información Geográfica (CNIG)