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Solar Radiation

by Felix Hebeler

 

02 May 2008 (Updated 14 May 2008)

No BSD License  

Calculates the hourly solar radiation (direct+diffuse+reflected) for a DEM integrated over on year

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Description

Solarradiation.m is used to calculate the solar radiation for a digital elevation model integrated over one year. Radiation is calculated depending on latitude, elevation, horizon shading, slope, aspect, time of year and hour of the day (day length/season) and ground reflectance.
Temporal resolution of radiation calculation over sunshine hours can be set freely (1 hour default).
The script follows the approach by Kumar et al (1997). Simple unweighed 4 nearest neighbour gradient calculation is used and relief shading is not accounted for.

Reference: Kumar, L, Skidmore AK and Knowles E 1997: Modelling topographic variation in solar radiation in
a GIS environment. Int.J.Geogr.Info.Sys. 11(5), 475-497

MATLAB release MATLAB 7.4 (R2007a)
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Comments and Ratings (2)
25 Apr 2009 EIE EIE  
02 Dec 2009 alino gomez  
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Updates
05 May 2008

Attach smaller image

14 May 2008

Includes variable daily time steps.
Improved example.

Tag Activity for this File
Tag Applied By Date/Time
solar radiation Felix Hebeler 22 Oct 2008 09:59:53
insolation Felix Hebeler 22 Oct 2008 09:59:53
reflectance Felix Hebeler 22 Oct 2008 09:59:53
solar Felix Hebeler 22 Oct 2008 09:59:53
difusse radiation Felix Hebeler 22 Oct 2008 09:59:53
solar radiation vincenzo ficco 11 Jul 2009 14:21:24
solar Othman 06 Feb 2010 07:43:01

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