Performance of CAMS Radiation Service and HelioClim-3 databases of solar radiation at surface: evaluating the spatial variation in Germany
<p>The present work deals with the spatial consistency of two well-known databases of solar radiation received at ground level: the CAMS Radiation Service database version 3.2, abbreviated as CAMS-Rad and the HelioClim-3 database version 5, abbreviated as HC3v5. Both databases are derived from...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2020-07-01
|
| Series: | Advances in Science and Research |
| Online Access: | https://asr.copernicus.org/articles/17/143/2020/asr-17-143-2020.pdf |
| _version_ | 1828400157808394240 |
|---|---|
| author | M. Marchand Y.-M. Saint-Drenan L. Saboret E. Wey L. Wald |
| author_facet | M. Marchand Y.-M. Saint-Drenan L. Saboret E. Wey L. Wald |
| author_sort | M. Marchand |
| collection | DOAJ |
| description | <p>The present work deals with the spatial consistency of two well-known
databases of solar radiation received at ground level: the CAMS Radiation
Service database version 3.2, abbreviated as CAMS-Rad and the HelioClim-3
database version 5, abbreviated as HC3v5. Both databases are derived from
satellite images. They are validated against 10 min means of irradiance for
the period 2010–2018 recorded in a network of 26 ground stations in Germany
operated by the Deutscher Wetterdienst (DWD). For the CAMS-Rad database, the
correlation coefficient between ground measurements and estimates ranges
between 0.83 and 0.92 for all sky conditions. The bias ranges from <span class="inline-formula">−41</span>
and 32 W m<span class="inline-formula"><sup>−2</sup></span> (<span class="inline-formula">−11</span> % and 10 % of the mean irradiance). The
standard deviation ranges between 89 and 129 W m<span class="inline-formula"><sup>−2</sup></span> (25 % and
39 %). For the HC3v5 database, the correlation coefficient ranges between
0.90 and 0.95. The bias and the standard deviation are comprised between
<span class="inline-formula">−22</span> and 16 W m<span class="inline-formula"><sup>−2</sup></span> (<span class="inline-formula">−6</span> % and 5 %), and between respectively
70 and 104 W m<span class="inline-formula"><sup>−2</sup></span> (20 % and 31 %). For the CAMS Rad database,
overestimation is observed in the South, and underestimation in the North
with a faint tendency of the bias to increase from East to West. For the
HC3v5 database, the bias is fairly homogeneous across Germany. For both
databases, there is no noticeable spatial trend in the standard deviation.</p> |
| first_indexed | 2024-12-10T09:27:07Z |
| format | Article |
| id | doaj.art-7099043c6aa5453bae05cde0a17b2cc4 |
| institution | Directory Open Access Journal |
| issn | 1992-0628 1992-0636 |
| language | English |
| last_indexed | 2024-12-10T09:27:07Z |
| publishDate | 2020-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Advances in Science and Research |
| spelling | doaj.art-7099043c6aa5453bae05cde0a17b2cc42022-12-22T01:54:29ZengCopernicus PublicationsAdvances in Science and Research1992-06281992-06362020-07-011714315210.5194/asr-17-143-2020Performance of CAMS Radiation Service and HelioClim-3 databases of solar radiation at surface: evaluating the spatial variation in GermanyM. Marchand0Y.-M. Saint-Drenan1L. Saboret2E. Wey3L. Wald4Transvalor, Sophia Antipolis, Valbonne, 06904, FranceMINES ParisTech, PSL University, OIE – Center Observation, Impacts, Energy, Sophia Antipolis Valbonne, 06904, FranceTransvalor, Sophia Antipolis, Valbonne, 06904, FranceTransvalor, Sophia Antipolis, Valbonne, 06904, FranceMINES ParisTech, PSL University, OIE – Center Observation, Impacts, Energy, Sophia Antipolis Valbonne, 06904, France<p>The present work deals with the spatial consistency of two well-known databases of solar radiation received at ground level: the CAMS Radiation Service database version 3.2, abbreviated as CAMS-Rad and the HelioClim-3 database version 5, abbreviated as HC3v5. Both databases are derived from satellite images. They are validated against 10 min means of irradiance for the period 2010–2018 recorded in a network of 26 ground stations in Germany operated by the Deutscher Wetterdienst (DWD). For the CAMS-Rad database, the correlation coefficient between ground measurements and estimates ranges between 0.83 and 0.92 for all sky conditions. The bias ranges from <span class="inline-formula">−41</span> and 32 W m<span class="inline-formula"><sup>−2</sup></span> (<span class="inline-formula">−11</span> % and 10 % of the mean irradiance). The standard deviation ranges between 89 and 129 W m<span class="inline-formula"><sup>−2</sup></span> (25 % and 39 %). For the HC3v5 database, the correlation coefficient ranges between 0.90 and 0.95. The bias and the standard deviation are comprised between <span class="inline-formula">−22</span> and 16 W m<span class="inline-formula"><sup>−2</sup></span> (<span class="inline-formula">−6</span> % and 5 %), and between respectively 70 and 104 W m<span class="inline-formula"><sup>−2</sup></span> (20 % and 31 %). For the CAMS Rad database, overestimation is observed in the South, and underestimation in the North with a faint tendency of the bias to increase from East to West. For the HC3v5 database, the bias is fairly homogeneous across Germany. For both databases, there is no noticeable spatial trend in the standard deviation.</p>https://asr.copernicus.org/articles/17/143/2020/asr-17-143-2020.pdf |
| spellingShingle | M. Marchand Y.-M. Saint-Drenan L. Saboret E. Wey L. Wald Performance of CAMS Radiation Service and HelioClim-3 databases of solar radiation at surface: evaluating the spatial variation in Germany Advances in Science and Research |
| title | Performance of CAMS Radiation Service and HelioClim-3 databases of solar radiation at surface: evaluating the spatial variation in Germany |
| title_full | Performance of CAMS Radiation Service and HelioClim-3 databases of solar radiation at surface: evaluating the spatial variation in Germany |
| title_fullStr | Performance of CAMS Radiation Service and HelioClim-3 databases of solar radiation at surface: evaluating the spatial variation in Germany |
| title_full_unstemmed | Performance of CAMS Radiation Service and HelioClim-3 databases of solar radiation at surface: evaluating the spatial variation in Germany |
| title_short | Performance of CAMS Radiation Service and HelioClim-3 databases of solar radiation at surface: evaluating the spatial variation in Germany |
| title_sort | performance of cams radiation service and helioclim 3 databases of solar radiation at surface evaluating the spatial variation in germany |
| url | https://asr.copernicus.org/articles/17/143/2020/asr-17-143-2020.pdf |
| work_keys_str_mv | AT mmarchand performanceofcamsradiationserviceandhelioclim3databasesofsolarradiationatsurfaceevaluatingthespatialvariationingermany AT ymsaintdrenan performanceofcamsradiationserviceandhelioclim3databasesofsolarradiationatsurfaceevaluatingthespatialvariationingermany AT lsaboret performanceofcamsradiationserviceandhelioclim3databasesofsolarradiationatsurfaceevaluatingthespatialvariationingermany AT ewey performanceofcamsradiationserviceandhelioclim3databasesofsolarradiationatsurfaceevaluatingthespatialvariationingermany AT lwald performanceofcamsradiationserviceandhelioclim3databasesofsolarradiationatsurfaceevaluatingthespatialvariationingermany |