vitirad: Compute solar radiation analysis of a vine location at a date

In rxlacroix/viticultR: Functions for viticulture analysis

Description

This function returns equation of from a date and the plot of the radiations

Usage

vitirad(lat, lon, date, tz, leaf_albedo, ground_albedo, height, thickness,
  interrow_spacing, porosity, row_aspect)

Arguments

lat	The latitude in decimal degrees
lon	The longitude in decimal degrees
date	The date in format ("2019-05-30")
tz	The timezone code see https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
leaf_albedo	The foliage albedo
ground_albedo	The ground albedo
height	The foliage height in meters
thickness	The vineyard row thickness in meters
interrow_spacing	The vineyard interrow spacing in meters
porosity	The vine porosity (0<x<1)
row_aspect	The row aspect (0 : NS, 90 : EW, -45 : NW-SE)

Value

The data frame of computed radiations

Examples

vitirad(lat = 43.5, lon = 4.7,
        date = "2019-05-30", tz = "CET", leaf_albedo = 0.22,
        ground_albedo = 0.18, height = 1.4, thickness = 0.7,
        interrow_spacing = 2.4, porosity = 0.1, row_aspect = 0)

rxlacroix/viticultR documentation built on June 25, 2019, 9:33 p.m.