calculator_density_and_SWE: calculator_density_and_SWE

In bridachristian/SnowProfileProcessing:

Description

calculator_density_and_SWE() is a function that reconstruct snow density for each layer if it is missing using an external matrix of snow density for each pairing of grain shape and hardness (Valt et al.,2005)

Usage

calculator_density_and_SWE(merged_table, SWE_grain_table,
  grain_shape1_colnames, grain_shape2_colnames, density_colnames,
  hardness_colnames, layer_from_colnames, layer_to_colnames,
  filter_profile_colnames)

Arguments

merged_table	A table containing stratigraphy and density information for each layer
SWE_grain_table	A table containing snow density for each pairing of grain shape and hardness
grain_shape1_colnames	The name of column of merged_table associated to grain shape 1
density_colnames	The name of column of merged_table associated to Density
hardness_colnames	The name of column of merged_table associated to Hardness
layer_from_colnames	The name of column of merged_table associated to the top of layer
layer_to_colnames	The name of column of merged_table associated to the bottom of layer
filter_profile_colnames	The name of column of merged_tableassociated to filtration code (Usually datetime + station code. We suggest to create merged_table with other funciton in this package)
grain_shape1_colnames	The name of column of merged_table associated to grain shape 2

Value

A list of 3 elements. The first element is a dataframe of estimated density for each pairing of grain shape and density, The second element is a dataframe of number of observation for each pairing of grain shape and density The third element is a dataframe of standard deviation of density for each pairing of grain shape and density

bridachristian/SnowProfileProcessing documentation built on May 16, 2019, 3:09 p.m.