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bigleaf (version 0.8.2)

Physical and Physiological Ecosystem Properties from Eddy Covariance Data

Description

Calculation of physical (e.g. aerodynamic conductance, surface temperature), and physiological (e.g. canopy conductance, water-use efficiency) ecosystem properties from eddy covariance data and accompanying meteorological measurements. Calculations assume the land surface to behave like a 'big-leaf' and return bulk ecosystem/canopy variables.

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Version

Install

install.packages('bigleaf')

Monthly Downloads

1,413

Version

0.8.2

License

GPL (>= 2)

Maintainer

Juergen Knauer

Last Published

August 22nd, 2022

Functions in bigleaf (0.8.2)

LE.to.ET

Conversion between Latent Heat Flux and Evapotranspiration
FR_Pue_May_2012

Eddy Covariance Data of FR-Pue (Puechabon)
Esat.slope

Saturation Vapor Pressure (Esat) and Slope of the Esat Curve
Monin.Obukhov.length

Monin-Obukhov Length
Gb.Su

Boundary Layer Conductance according to Su et al. 2001
Arrhenius.temp.response

(Modified) Arrhenius Temperature Response Function
Gb.Choudhury

Boundary Layer Conductance according to Choudhury & Monteith 1988
AT_Neu_Jul_2010

Eddy Covariance Data of AT-Neu (Neustift)
DE_Tha_Jun_2014

Eddy Covariance Data of DE-Tha (Tharandt)
Gb.Thom

Boundary Layer Conductance according to Thom 1972
aerodynamic.conductance

Aerodynamic Conductance
biochemical.energy

Biochemical Energy
bigleaf.constants

Constants Used in the bigleaf Package
check.length

Test Variables for Equal Length
check.input

Check Input for Functions in the bigleaf Package
filter.data

Basic Eddy Covariance Data Filtering
extraterrestrial.radiation

Extraterrestrial solar radiation
decoupling

Canopy-Atmosphere Decoupling Coefficient
WUE.metrics

Water-Use Efficiency Metrics
dew.point

Dew Point
VPD.to.rH

Conversions between Humidity Measures
dew.point.solver

Solver function for dew point temperature
energy.closure

Energy Balance Closure
Reynolds.Number

Roughness Reynolds Number
Rg.to.PPFD

Conversions between Global Radiation and Photosynthetic Photon Flux Density
isothermal.Rn

Isothermal Net Radiation
light.response

Ecosystem Light Response
kinematic.viscosity

Kinematic Viscosity of Air
latent.heat.vaporization

Latent Heat of Vaporization
kg.to.mol

Conversion between Mass and Molar Units
roughness.length.heat

Roughness length for heat
roughness.parameters

Roughness Parameters
energy.use.efficiency

Energy-Use Efficiency (EUE)
photosynthetic.capacity

Bulk Canopy Photosynthetic Capacity (Vcmax and Jmax)
equilibrium.imposed.ET

Equilibrium and Imposed Evapotranspiration
psychrometric.constant

Psychrometric Constant
optimum.temperature

Optimum temperature of Gross Primary Productivity
pressure.from.elevation

Atmospheric Pressure from Hypsometric Equation
light.use.efficiency

Light-Use Efficiency (LUE)
potential.ET

Potential Evapotranspiration
potential.radiation

Potential radiation
surface.conductance

Surface Conductance to Water Vapor
air.density

Air Density
reference.ET

Reference Evapotranspiration
filter.growing.season

GPP-based Growing Season Filter
radiometric.surface.temp

Radiometric Surface Temperature
intercellular.CO2

Bulk Intercellular CO2 Concentration
virtual.temp

Virtual Temperature
wetbulb.solver

Solver Function for Wet-Bulb Temperature
stability.correction

Integrated Stability Correction Functions for Heat and Momentum
stability.parameter

Stability Parameter "zeta"
umolCO2.to.gC

Conversion between Mass and Molar Units of Carbon and CO2
stomatal.sensitivity

Stomatal Sensitivity to VPD
stomatal.slope

Stomatal Slope Parameter "g1"
wind.profile

Wind Speed at a Given Height in the Surface Layer
wetbulb.temp

Wet-Bulb Temperature
ms.to.mol

Conversion between Conductance Units
surface.CO2

CO2 Concentration at the Canopy Surface
longwave.conductance

Longwave Radiative Transfer Conductance of the Canopy
surface.conditions

Big-Leaf Surface Conditions