SHADE2 model from Li et al. (2012) Modeled riparian stream shading: Agreement with field measurements and sensitivity to riparian conditions

Source: R/SHADE2.R

Translation of shdexe.m

SHADE2(
  driver,
  solar,
  Lat,
  Lon,
  channel_azimuth,
  bottom_width,
  BH,
  BS,
  WL,
  TH,
  overhang,
  overhang_height
)

Arguments

driver

The site driver file
solar

Solar geometry, calculated from solar_geo_calc.R
Lat

The site Latitude
Lon

The site Longitude
channel_azimuth

Channel azimuth
bottom_width

#ADD DETAILS
BH

Bank height
BS

Bank slope
WL

Water level
TH

Tree height
overhang

Effectively canopy radius
overhang_height

height of the maximum canopy overhang (think canopy radius)

Value

Returns total percent of the wetted width shaded by the bank and by vegetation