APOLIS-v2: Daily data for solar radiation for Austria
Important Notice – Incorrect Coordinate Reference System
This version (v2) contains an incorrect coordinate reference system. The data was mistakenly delivered using EPSG:3416 (ETRS89) instead of the correct EPSG:31287 (MGI). This results in a spatial shift of up to 70–80 meters. Direct use of the data without subsequent correction is not recommended.
A corrected version is currently being prepared and will be made available shortly. We apologize for any inconvenience. If you have any questions, please contact datahub.support@geosphere.at.
This version (v2) contains an incorrect coordinate reference system. The data was mistakenly delivered using EPSG:3416 (ETRS89) instead of the correct EPSG:31287 (MGI). This results in a spatial shift of up to 70–80 meters. Direct use of the data without subsequent correction is not recommended.
A corrected version is currently being prepared and will be made available shortly. We apologize for any inconvenience. If you have any questions, please contact datahub.support@geosphere.at.
Description
Public
The data set is generated by GeoSphere Austria's STRAHLGRID radiation model. It covers various radiation variables, including sunshine duration and near-surface short-wave radiation components such as direct and diffuse radiation, on both real and horizontal surface. The sum of these two components yields global radiation. The model takes into account atmospheric turbidity, cloud cover, and horizon shading. The daily totals of the radiation variables are calculated on a 100x100m grid for the whole of Austria. The data set is updated daily.
Resources
Documentation
Metadata
| GeoSphere Austria | |
| GeoSphere Austria | |
| GeoSphere Austria | |
GeoSphere Austria
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| https://doi.org/10.60669/j9t2-9e24 | |
| Creative Commons Attribution 4.0 International | |
| 04.05.2026 | |
| 04.05.2026 | |
| 10.10.2026 09:05 UTC | |
| https://doi.org/10.5194/ems2024-366, https://adsabs.harvard.edu/abs/2012EGUGA..14.9705O | |
| 10.06.2012 23:00 UTC | |
| 09.10.2026 00:00 UTC | |
| 1 Day | |
| 1 Day | |
| UTC | |
|
Spatial Resolution: 100 m Bounding Box: 45.77 - 49.48 °N, 7.1 - 17.74 °E Projection: MGI / Austria Lambert (EPSG: 31287) |
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| Radiation, Sunshine | |
| 2 | |
| The domain has been expanded. As part of this process, the terrain data was updated and the derived parameters were recalculated. The calculation routine for the sky view factor has also been corrected. The modules for processing aerosol input data and for transmission calculations were evaluated and enhanced. Known artificial artefacts were identified and removed. The values of `dir_hor` and `dir_real` were swapped and corrected on 06.08.2026. | |
| https://doi.org/10.60669/6xer-vc60 (APOLIS Kurzzeit v1 Tagesdaten) | |
| Environment Government and public sector Science and technology |
