I am trying to use the Kasten_Czepalk solar radiation model for estimating the hourly solar radiation. The equation is as follows:
I=Ic*[1-A(N/8]^B
where I is hourly solar radiation
Ic is the hourly clear sky solar radiation, N is the cloud cover data
A and B are the local coefficients
How can i estimate this coefficient?
The global solar radiation data is measured with a pyranometer, with a spectral range. The pyranometer is mounted on an automatic weather station that also provided data on temperature, relative humidity, atmospheric pressure, rainfall, downwelling radiation, soil matrix potential, soil heat flux, and wind speed in horizontal and vertical directions.
Dear Nahian
You might miss my point. I was asking how can I estimate the regression coefficients of the above equation?
Curve fitting method would be the best and easiest way for analysing this model. You can access to this Curve fit method by the help of CF Tool in Matlab. You can use custom equation option in the tool box. But make sure that you have created the test and train data sets before execution.
- Badges
- Science topic