Hazard Class Reference

#include <Hazard.h>

Public Member Functions
	Hazard (const SnowpackConfig &cfg, const double duration)
void	initializeHazard (std::vector< double > &vecDrift, double slope_angle, std::vector< ProcessDat > &Hdata, std::vector< ProcessInd > &Hdata_ind)
	Allocates and initializes Hazard data. More...
void	getHazardDataMainStation (ProcessDat &Hdata, ProcessInd &Hdata_ind, ZwischenData &Zdata, const double &newDrift, const bool stationDriftIndex, const SnowStation &Xdata, const CurrentMeteo &Mdata, const SurfaceFluxes &Sdata)
	Compute the Hdata from main station data. More...
void	getHazardDataSlope (ProcessDat &Hdata, ProcessInd &Hdata_ind, std::vector< double > &drift24, const double &newDrift, const SnowStation &Xdata, const bool luvDriftIndex, const bool north, const bool south)
	Compute Hdata from virtual slope data. More...

Static Public Attributes
static const double	typical_slope_length = 70.0
static const double	wind_slab_density = 77.0
static const double	minimum_drift = 0.0
static const double	maximum_drift = 5.0

Constructor & Destructor Documentation

Hazard()

Hazard::Hazard	(	const SnowpackConfig &	cfg,
		const double	duration
	)

Defines how the height of snow is going to be handled

• false: Depth of snowfall is determined from the water equivalent of snowfall (PSUM)
• true: The measured height of snow is used to determine whether new snow has been deposited. This setting MUST be chosen in operational mode.
  This procedure has the disadvantage that if the snowpack settles too strongly extra mass is added to the snowpack.
  New snow density is needed in both cases, either parameterized, measured, or fixed.

Member Function Documentation

getHazardDataMainStation()

void Hazard::getHazardDataMainStation	(	ProcessDat &	Hdata,
		ProcessInd &	Hdata_ind,
		ZwischenData &	Zdata,
		const double &	newDrift,
		const bool	stationDriftIndex,
		const SnowStation &	Xdata,
		const CurrentMeteo &	Mdata,
		const SurfaceFluxes &	Sdata
	)

Compute the Hdata from main station data.

• depths of snowfall hn({0.5, 3., 6., 12., 24., 72.}h) including water equivalents (psum)
• 3 days sum of 24h depths of snowfall
• surface hoar size and hoar index for 6 and 24 hours
• dewpoint deficit, SWE and total liquid water content, runoff, Profile type, Stability classes and indices, energy balance, and snow temperatures

  Note

  If there are no virtual slopes available, drifting snow index and thickness of surface crust may be computed from the main station if SNOW_EROSION is set

  Parameters

  Hdata
  Hdata_ind
  Zdata
  newDrift
  stationDriftIndex	needs to be computed
  Xdata
  Mdata
  Sdata

getHazardDataSlope()

void Hazard::getHazardDataSlope	(	ProcessDat &	Hdata,
		ProcessInd &	Hdata_ind,
		std::vector< double > &	drift24,
		const double &	newDrift,
		const SnowStation &	Xdata,
		const bool	luvDriftIndex,
		const bool	north,
		const bool	south
	)

Compute Hdata from virtual slope data.

• drifting snow index for last 6 and 24 h
• liquid water index for north and south slope
• vertical thickness of melt-freeze crust, not buried deeper than 3 cm

  Note

  these values are only available for virtual slopes

  Parameters

  Hdata
  Hdata_ind
  drift24	vector of 48 previous driting snow values
  newDrift	value
  Xdata
  luvDriftIndex	needs to be computed
  north	is slope aspect
  south	is slope aspect

initializeHazard()

void Hazard::initializeHazard	(	std::vector< double > &	old_drift,
		double	slope_angle,
		std::vector< ProcessDat > &	Hdata,
		std::vector< ProcessInd > &	Hdata_ind
	)

Allocates and initializes Hazard data.

• Computes a zeroth order drift index for the first time step w/o shifting old_drift!

  Parameters

  *old_drift
  slope_angle	(degree)
  Hdata
  Hdata_ind

Member Data Documentation

maximum_drift

const double Hazard::maximum_drift = 5.0

static

minimum_drift

const double Hazard::minimum_drift = 0.0

static

typical_slope_length

const double Hazard::typical_slope_length = 70.0

static

wind_slab_density

const double Hazard::wind_slab_density = 77.0

static

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The documentation for this class was generated from the following files:

• Hazard.h
• Hazard.cc