libmodel - IPW physical-modeling library
solar - solar geometry and radiation
- ephemeris
- calculates ephemeris data
- sunpath
- sun angle from solar declination and longtitude
- sunangle
- calculate sun angle from position and date-time
- sunrise
- sunrise time (GMT) for a given place and date
- sunset
- sunset time (GMT) for a given place and date
radiation - radiation
- beta_0
- compute beta_0 for Henyey-Greenstein function
- brutsaert
- calculates atmospheric emissivity
- delta_edd
- delta-Eddington transformation
- mwgamma
- gamma values for twostream calculations
- net_therm
- calculates net thermal radiation
- twostream
- twostream solution for horizontal surface
snow - snow modeling
- g_snow
- conduction heat flow between two snow layers
- g_soil
- conduction heat flow between snow and soil
- new_tsno
- calculates snow layer's new temperature
envphys - environmental physics
- bevap
- evaporation rate from Bowen ratio
- bowen
- calculates Bowen ratio (H/LE)
- budyer
- heat exchanges using Businger-Dyer model
- budyer2
- heat exchanges using Businger-Dyer model (limited inputs)
- dew_point
- dew point temperature
- efcon
- calculates equivalent thermal conductivity
- evap
- calculates evaporation rate
- heat_stor
- calculates change in heat storage in a layer
- hle1
- sensible and latent heat from data at 1 height
- psychrom
- solve psycrometric equation
- wetbulb
- invert psycrometric eqn to get wetbulb temperature
- ri_no
- bulk Richardson number at geometric mean height
- sati
- saturation vapor pressure over ice
- satw
- saturation vapor pressure over water
- ssxfr
- steady state heat transfer between 2 layers
IPW documentation /
Last revised 1 April 2014 /
IPW web site