Detailed Description

Solar radiation interpolation with optional terrain shading.

The splitting coefficients and an atmospheric losses factors are computed at each station that provides ISWR and spatially interpolated with an Inverse Distance Weighting scheme. Then the potential radiation is computed at each pixel and scaled appropriately with the atmospheric loss factor for this pixel. When applying topographic shading (default), the local splitting coefficient is used. The global, horizontal (except when using the PROJECT_ON_SLOPE option) short wave radiation is then returned. It supports the following arguments:

SHADING: if set to FALSE, turns off topographic shading (default: TRUE);
PROJECT_ON_SLOPE: if set to TRUE, the computed radiation will be projected on the slopes (default: FALSE so it returns an horizontal radiation field);
SCALE: this is a scaling parameter to smooth the IDW distribution. In effect, this is added to the distance in order to move into the tail of the 1/d distribution (default: 1000m);
ALPHA: this is an exponent to the 1/d distribution (default: 1);

ISWR::algorithms = SWRad

ISWR::SWRad::shading = true

Note: For this method to work, you also need to define spatial interpolations algorithms for TA, RH and P (a basic STD_PRESS algorithm is usually enough); This algorithm is quite time consuming (specially the topographic shading) and therefore not appropriate for very large domains.

#include <SwRadAlgorithm.h>

Public Member Functions
	SWRadInterpolation (const std::vector< std::pair< std::string, std::string > > &vecArgs, const std::string &i_algo, const std::string &i_param, TimeSeriesManager &i_tsm, Meteo2DInterpolator &i_mi)

virtual double	getQualityRating (const Date &i_date)

virtual void	calculate (const DEMObject &dem, Grid2DObject &grid)

Public Member Functions inherited from mio::InterpolationAlgorithm
	InterpolationAlgorithm (const std::vector< std::pair< std::string, std::string > > &, const std::string &i_algo, const std::string &i_param, TimeSeriesManager &i_tsm)

virtual	~InterpolationAlgorithm ()

virtual double	getQualityRating (const Date &i_date)=0

virtual void	calculate (const DEMObject &dem, Grid2DObject &grid)=0

std::string	getInfo () const
	Return an information string about the interpolation process. More...

Additional Inherited Members
Public Attributes inherited from mio::InterpolationAlgorithm
const std::string	algo

Protected Member Functions inherited from mio::InterpolationAlgorithm
std::vector< double >	getData (const Date &i_date, const std::string &i_param)

size_t	getData (const Date &i_date, const std::string &i_param, std::vector< double > &o_vecData, std::vector< StationData > &o_vecMeta)

Protected Attributes inherited from mio::InterpolationAlgorithm
TimeSeriesManager &	tsmanager

Date	date

std::vector< MeteoData >	vecMeteo

std::vector< double >	vecData
	store the measurement for the given parameter More...

std::vector< StationData >	vecMeta
	store the station data for the given parameter More...

std::ostringstream	info
	to store some extra information about the interplation process More...

const std::string	param
	the parameter that we will interpolate More...

size_t	nrOfMeasurments
	Number of stations that have been used, so this can be reported to the user. More...

Constructor & Destructor Documentation

◆ SWRadInterpolation()

mio::SWRadInterpolation::SWRadInterpolation	(	const std::vector< std::pair< std::string, std::string > > &	vecArgs,
		const std::string &	i_algo,
		const std::string &	i_param,
		TimeSeriesManager &	i_tsm,
		Meteo2DInterpolator &	i_mi
	)

Member Function Documentation

◆ calculate()

void mio::SWRadInterpolation::calculate	(	const DEMObject &	dem,
		Grid2DObject &	grid
	)

virtual

Implements mio::InterpolationAlgorithm.

◆ getQualityRating()

double mio::SWRadInterpolation::getQualityRating ( const Date & i_date )