Abstract
Diurnal variation of solar radiation at surface is of importance to data assimilation, weather and climate model assessment. However, the shortage of solar radiation data has limited full use of other meteorological data. Solar radiation at surface can not be simply calculated by interpolation in any time interval because it is heavily influenced by solar hour angle, cloud, water vapor and aerosols etc., which brings great troubles to model applications. This paper presents a method to compute mean solar radiation at surface in any time interval and develops a data set of hourly mean solar radiation that can be used to assess models by use of NCEP 6-hourly mean of downward solar radiation flux at surface. Also, while comparing to measured hourly mean of solar radiation, results show that the calculated hourly mean solar radiation agrees closely with observation in numerical value and variation trend, which illuminates that the method is efficient. The calculated hourly-mean solar radiation reflects the diurnal variation all over the world and it can be used as land model forcing, It is helpful to simulation, validation and assessment of the weather and climate model and can make up the shortage of measured solar radiation data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
