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The CAMS Radiation Service is designed to meet the requirements that have been specified for the Copernicus Atmosphere Monitoring Service (CAMS). The precursor projects MACC and MACC-II/-III prepared the CAMS Radiation Service in terms of implementation, sustained operation and availability. It was ensured that the service lines have been designed to best meet both the requirements of downstream service providers and end users at the European, national and local levels, and the requirements of the global scientific user community. This page provides a high level overview of the solar radiation service; more details can be found in the Section Detailed documentation.
Solar radiation service
The CAMS solar radiation services provide historical values (2004 to present) of global (GHI), direct (BHI) and diffuse (DHI) solar irradiation, as well as direct normal irradiation (BNI). The aim is to fulfil the needs of European and national policy development and the requirements of both commercial and public downstream services, e.g. for planning, monitoring, efficiency improvements and the integration of solar energy systems into energy supply grids.
For clear-sky conditions, an irradiation time series is provided for any location in the world using information on aerosol, ozone and water vapour from the CAMS global forecasting system. Other properties, such as ground albedo and ground elevation, are also taken into account. Similar time series are available for cloudy conditions but, since the high-resolution cloud information is directly inferred from satellite observations, these are currently only available inside the field-of-view of the Meteosat Second Generation (MSG) satellite, which is roughly Europe, Africa, the Atlantic Ocean and the Middle East.
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Known issues and version updates
| Date | Version | Description |
2022-09 | v4.5 (current) | New version of the all-sky model. Version 4.5 uses a new clear sky model (McClear 3.5) and no bias correction anymore. The clear-sky model McClear 3.5 uses now the CAMS Reanalysis for 2004-2020. |
2021-06 | v4.0 (current) | Since 2013, CAMS Radiation service used the cloud retrieval scheme APOLLO. The version 4.0 of CAMS Radiation Service includes a new version APOLLO Next Generation (APOLLO_NG) that improves cloud detection using fuzzy logic. Fix in the MSG satellite projection handling for all data before 12/2017. A new global bias correction was implemented. |
2018-06 | v3.2 | Fix of a mathematical bug in the (latitude, longitude) position of the pixels of the Meteosat satellite images. |
2018-03 | v3.1 | CAMS McClear benefits from the successive enhancements of the Aerosol Optical Depth versions. McClear version, and consequently CAMS radiation service version as well, have been incremented from 3.0 to 3.1. Results are slightly modified in October 2012 and September-November 2015. |
2017-10 | v3 | McClear clear sky model v3 |
2015-10 | v2.7 | McClear v2.7 |
2015-07 | v2.6 | Bug fixed in verbose expert mode |
2015-02 | v2.6 | Bug fixed in the filling of MACC AOD databases |
2015-01 | v2.6 | Bug fixed bug for cloud coverage > 100% |
2014-11 | v2.5 | APOLLO data coverage extension: 2004-02-01 to D-2 |
2014-11 | v2.4 | Call to McClear v2.4 |
2014-08 | v2.3 | Call to McClear v2.3 Bug fixed in APOLLO data interpolation |
v2.2 | does not exist (synchronization with McClear versions) | |
2014-07 | v2.1 | Bug fixed for the shift of one pixel in APOLLO files import |
2013-07 | v2.0 | Edition format file version 1 |
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