amf_base {amerifluxr}

BASE data example

Description

Continuous flux/met data (i.e., AmeriFlux BASE data product) for the US-CRT site, as an example for demonstration. Also see AmeriFlux webpage https://ameriflux.lbl.gov/data/aboutdata/data-variables/#base for variable definitions and details.

Usage

amf_base

Format

A data frame with 336 rows and 36 variables

Details

• TIMESTAMP_START - ISO timestamp start of averaging period (YYYYMMDDHHMM)

• TIMESTAMP_END - ISO timestamp end of averaging period (YYYYMMDDHHMM)

• CO2 - Carbon Dioxide (CO2) mole fraction in wet air (µmolCO2 mol-1)

• H2O - Water (H2O) vapor in mole fraction of wet air (mmolH2O mol-1)

• FC - Carbon Dioxide (CO2) turbulent flux (µmolCO2 m-2 s-1)

• NEE_PI - Net Ecosystem Exchange (µmolCO2 m-2 s-1)

• CH4 - Methane (CH4) mole fraction in wet air (nmolCH4 mol-1)

• FCH4 - Methane (CH4) turbulent flux (nmolCH4 m-2 s-1)

• H - Sensible heat turbulent flux (W m-2)

• LE - Latent heat turbulent flux (W m-2)

• G_1_1_1 - Soil heat flux at horizontal location #1 (W m-2)

• G_2_1_1 - Soil heat flux at horizontal location #2 (W m-2)

• WD - Wind direction (Decimal degrees)

• WS - Wind speed (m s-1)

• USTAR - Friction velocity (m s-1)

• ZL - data value

• MO_LENGTH - Monin-Obukhov Stability parameter (nondimensional)

• W_SIGMA - Standard deviation of vertical velocity fluctuations (m s-1)

• V_SIGMA - Standard deviation of lateral velocity fluctuations (m s-1)

• U_SIGMA - Standard deviation of along-wind velocity fluctuations (m s-1)

• T_SONIC - Sonic temperature (deg C)

• T_SONIC_SIGMA - Standard deviation of sonic temperature (deg C)

• PA - Atmospheric pressure (kPa)

• RH - Relative humidity (%)

• TA - Air temperature (deg C)

• TS_1_1_1 - Soil temperature at horizontal location #1 (deg C)

• TS_2_1_1 - Soil temperature at horizontal location #2 (deg C)

• WTD - Water table depth (m)

• SWC - Soil water content (%)

• NETRAD - Net radiation (W m-2)

• PPFD_IN - Photosynthetic photon flux density, incoming (µmolPhoton m-2 s-1)

• SW_IN - Shortwave radiation, incoming (W m-2)

• SW_OUT - Shortwave radiation, outgoing (W m-2)

• LW_IN - Longwave radiation, incoming (W m-2)

• LW_OUT - Longwave radiation, outgoing (W m-2)

• P - Rainfall (mm)

Source

https://ameriflux.lbl.gov/