Configure enhanced Belcher morphing

belcher_options(
  transition_hours = 72L,
  humidity_source = "auto",
  diffuse_model = "rbl_2010",
  illuminance_model = "perez_1990",
  snow_depth = "auto",
  ground_temperatures = "recalculate",
  typical_extreme_periods = "recalculate",
  design_conditions = "drop"
)

Arguments

transition_hours: Total width in hours of each cyclic transition centered on a month boundary. Must be between 0 and 336; 0 disables smoothing.
humidity_source: Humidity state input: "auto", "huss", or "hurs".
diffuse_model: Diffuse-radiation model: "rbl_2010" or "preserve_fraction".
illuminance_model: Illuminance model: "perez_1990" or "preserve".
snow_depth: Snow-depth policy: "auto", "required", or "off".
ground_temperatures: Ground-temperature header policy: "recalculate" applies the Kusuda–Achenbach model to the morphed year, while "preserve" retains the baseline EPW header.
typical_extreme_periods: Typical/extreme-period header policy: "recalculate" finds six hemisphere-aware periods from the morphed year, while "preserve" retains the baseline EPW header.
design_conditions: Design-condition header policy. "drop" writes DESIGN CONDITIONS,0 because one morphed year cannot support a new ASHRAE design-condition calculation; "preserve" retains the baseline header.

Value

A validated belcher_options list.

References

Ridley B, Boland J, Lauret P (2010), "Modelling of diffuse solar fraction with multiple predictors", Renewable Energy. doi:10.1016/j.renene.2009.07.018

Perez R, Ineichen P, Seals R, Michalsky J, Stewart R (1990), "Modeling daylight availability and irradiance components from direct and global irradiance", Solar Energy.

EnergyPlus Weather File Data Dictionary: https://bigladdersoftware.com/epx/docs/22-2/auxiliary-programs/energyplus-weather-file-epw-data-dictionary.html