Detailed Description

Scale and distribute the precipitation according to Airborn Laser Scans (ALS) grids.

This assumes that precipitation fields can be scaled according to snow heights grids in order to get improved precipitation patterns (see "Scaling Precipitation Input to Spatially Distributed Hydrological Models by Measured Snow Distribution", C. Vögeli, M. Lehning, N. Wever, M. Bavay, 2016, Front. Earth Sci. 4: 108. doi: 10.3389/feart.2016.00108.).

In a first step, the precipitation are spatially distributed with a base method and in a second step the resulting grid is modified to reflect the spatial distribution of the provided snow height grid. Of course, these two steps happen automatically and transparently to the caller of this algorithm.

It takes the following arguments:

BASE: the base method to fill the grid (for example, idw_lapse (default));
GRID: the name of the file (in GRID2DPATH) containing the gridded ALS data (relying on the GRID2D plugin). This must provide a snow height map that will be used to scale the precipitation patterns.
TA_THRESH: an optional air temperature threshold (in K) below which such redistribution occurs (so liquid precipitation is not redistributed)

Note: If there are some time steps when only one station provides the necessary parameter, the base method will automatically switch to "AVG".

PSUM::algorithms        = ALS_SCALING
PSUM::als_scaling::base = idw_lapse
PSUM::als_scaling::grid = als_20150213.asc

#include <ALSScaleAlgorithm.h>

Public Member Functions
	ALS_Interpolation (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)

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

◆ ALS_Interpolation()

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

virtual

Implements mio::InterpolationAlgorithm.

◆ getQualityRating()

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