Detailed Description

DEM-based wind-exposure interpolation algorithm, for a spatially explicit varying DW field.

This is an implementation of the method described in Winstral, Elder, & Davis, "Spatial snow modeling of wind-redistributed snow using terrain-based parameters", 2002, Journal of Hydrometeorology, 3(5), 524-538. The wind direction for determining wind-exposure is taken from a 2D wind direction field. The DEM is used to compute wind exposure factors that are used to alter the precipitation fields. It is usually a good idea to provide a DEM that also contain the accumulated snow height in order to get a progressive softening of the terrain features.

It takes the following arguments:

BASE:: provide the base algorithm to pre-fill the grid, since this method must first use another algorithm to generate an initial precipitation field, and then modify it. By default, this base method is "idw_lapse" and switches to "avg" if only one station can provide the precipitation at a given time step (for an easy fallback). Please do not forget to provide any necessary arguments for this base method!
DMAX: maximum search distance or radius (default: 300m);

Remarks

Only cells with an air temperature below freezing participate in the redistribution
Using the WinstralListonAlgorithm also requires the specification of an interpolation method for DW

PSUM::algorithms         = WINSTRAL++
PSUM::winstral++::base   = idw_lapse
PSUM::winstral++::dmax   = 300
DW::algorithms           = LISTON_WIND
DW::liston_wind::scale   = 300

#include <WinstralListonAlgorithm.h>

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

virtual double	getQualityRating (const Date &i_date) override

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

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 ()

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

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

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

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

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

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

Constructor & Destructor Documentation

◆ WinstralListonAlgorithm()

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

Member Function Documentation

◆ calculate()

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

overridevirtual

Implements mio::InterpolationAlgorithm.

◆ getQualityRating()

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