McClear: a new model estimating downwelling solar radiation at ground level in clear-sky conditions
| Autor: | Zhipeng Qu, Johannes W. Kaiser, Armel Oumbe, Mireille Lefèvre, Angela Benedetti, Antti Arola, Jean-Jacques Morcrette, Benoît Gschwind, Philippe Blanc, Carsten Hoyer-Klick, Bella Espinar, Lucien Wald, Marion Schroedter-Homscheidt |
|---|---|
| Přispěvatelé: | Centre Observation, Impacts, Énergie (O.I.E.), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), German Remote Sensing Data Center (DLR-DFD), German Aerospace Center (DLR), DLR Institut für Technische Thermodynamik / Institute of Engineering Thermodynamics (ITT), Deutsches Zentrum für Luft- und Raumfahrt [Stuttgart] (DLR), Finnish Meteorological Institute (FMI), European Centre for Medium-Range Weather Forecasts (ECMWF), King‘s College London, Max Planck Institute for Chemistry (MPIC), Max-Planck-Gesellschaft, European Project: 283576,EC:FP7:SPA,FP7-SPACE-2011-1,MACC II(2011), Mines Paris - PSL (École nationale supérieure des mines de Paris) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Atmospheric Science
010504 meteorology & atmospheric sciences Correlation coefficient Meteorology Systemanalyse und Technikbewertung aerosol 020209 energy solar radiation downwelling shortwave irradiance Irradiance MACC 02 engineering and technology Atmospheric sciences 01 natural sciences Atmospheric radiative transfer codes Downwelling 0202 electrical engineering electronic engineering information engineering lcsh:TA170-171 retrieval 0105 earth and related environmental sciences [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere lcsh:TA715-787 lcsh:Earthwork. Foundations BSRN McClear Deutsches Fernerkundungsdatenzentrum Numerical weather prediction GMES Aerosol lcsh:Environmental engineering clear sky model 13. Climate action Geostationary orbit Environmental science Atmosphäre Shortwave clear sky |
| Zdroj: | Atmospheric Measurement Techniques, Vol 6, Iss 9, Pp 2403-2418 (2013) Atmospheric Measurement Techniques Atmospheric Measurement Techniques, European Geosciences Union, 2013, 6, pp.2403-2418. ⟨10.5194/amt-6-2403-2013⟩ Atmospheric Measurement Techniques, 2013, 6, pp.2403-2418. ⟨10.5194/amt-6-2403-2013⟩ |
| ISSN: | 1867-8548 1867-1381 |
| Popis: | A new fast clear-sky model called McClear was developed to estimate the downwelling shortwave direct and global irradiances received at ground level under clear skies. It is a fully physical model replacing empirical relations or simpler models used before. It exploits the recent results on aerosol properties, and total column content in water vapour and ozone produced by the MACC project (Monitoring Atmosphere Composition and Climate). It accurately reproduces the irradiance computed by the libRadtran reference radiative transfer model with a computational speed approximately 105 times greater by adopting the abaci, or look-up table, approach combined with interpolation functions. It is therefore suited for geostationary satellite retrievals or numerical weather prediction schemes with many pixels or grid points, respectively. McClear irradiances were compared to 1 min measurements made in clear-sky conditions at several stations within the Baseline Surface Radiation Network in various climates. The bias for global irradiance comprises between −6 and 25 W m−2. The RMSE ranges from 20 W m−2 (3% of the mean observed irradiance) to 36 W m−2 (5%) and the correlation coefficient ranges between 0.95 and 0.99. The bias for the direct irradiance comprises between −48 and +33 W m−2. The root mean square error (RMSE) ranges from 33 W m−2 (5%) to 64 W m−2 (10%). The correlation coefficient ranges between 0.84 and 0.98. This work demonstrates the quality of the McClear model combined with MACC products, and indirectly the quality of the aerosol properties modelled by the MACC reanalysis. |
| Databáze: | OpenAIRE |
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