Detailed Description

Incoming Long Wave Radiation interpolation algorithm.

Each ILWR is converted to an emissivity (using the local air temperature), interpolated using IDW_LAPSE and reconverted to ILWR. As a side effect, the user must have defined algorithms to be used for air temperature (since this is needed for emissivity to ILWR conversion). The lapse rate definition arguments as parsed by Trend::Trend() are supported (but keep in mind these apply to the emissivity, not to the ILWR!) as well as the following arguments:

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);

Note: the emissivity variation is not linear with elevation, but it is possible to derive some approximate lapse rate for the elevation on interest, for example from Centeno, M. "New formulae for the equivalent night sky emissivity", 1982, Solar Energy, 28(6), 489-498 (watch out, an exponent is wrong in quation 13 page 491). A better approach would be to use a power function to fit the emissivity as a function of the elevation...

ILWR::algorithms = ILWR_EPS
ILWR::ilwr_eps::soft = true
ILWR::ilwr_eps::rate = -1.8e-5 ;around 2000m elevation

#include <ILWREpsAlgorithm.h>

Public Member Functions
	ILWREpsAlgorithm (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

◆ ILWREpsAlgorithm()

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

virtual

Implements mio::InterpolationAlgorithm.

◆ getQualityRating()

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