co2_df_missing

Continuous CO2 concentration as measured on the field, with missing data.

internal

Toolbox to process raw data from closed loop flux chamber (or tent)
setups into ecosystem gas fluxes usable for analysis. It goes from a
data frame of gas concentration over time (which can contain several
measurements) and a meta data file indicating which measurement was done
when, to a data frame of ecosystem gas fluxes including quality diagnostics.
Organized with one function per step, maximizing user flexibility and backwards
compatibility. Different models to estimate the fluxes from the raw data are
available: exponential as described in
Zhao et al (2018) <doi:10.1016/j.agrformet.2018.08.022>, exponential as described in
Hutchinson and Mosier (1981) <doi:10.2136/sssaj1981.03615995004500020017x>,
quadratic, and linear. Other functions include quality assessment,
plotting for visual check, calculation of fluxes based on the setup
specific parameters (chamber size, plot area, ...), gross primary production
and transpiration rate calculation, and light response curves.

Joseph Gaudard

fluxible

Ecosystem Gas Fluxes Calculations for Closed Loop Chamber Setup

co2_df_missing function

A tibble with 1148 rows and 5 variables<dl>
<dt>datetime</dt>
<dd>Datetime at which CO2 concentration was recorded.</dd><dt>temp_air</dt>
<dd>Air temperature inside the flux chamber in Celsius.</dd><dt>temp_soil</dt>
<dd>Ground temperature inside the flux chamber in Celsius.</dd><dt>conc</dt>
<dd>CO2 concentration in ppm.</dd><dt>PAR</dt>
<dd>Photosynthetically active radiation inside the chamber
in micromol/s/sqm.</dd>
</dl>

Format

CO2 concentration with missing data — co2_df_missing

A tibble with 1148 rows and 5 variables<dl>
<dt>datetime</dt>
<dd>Datetime at which CO2 concentration was recorded.</dd>

<dt>temp_air</dt>
<dd>Air temperature inside the flux chamber in Celsius.</dd>

<dt>temp_soil</dt>
<dd>Ground temperature inside the flux chamber in Celsius.</dd>

<dt>conc</dt>
<dd>CO2 concentration in ppm.</dd>

<dt>PAR</dt>
<dd>Photosynthetically active radiation inside the chamber
in micromol/s/sqm.</dd>


</dl>

co2_df_missing: CO2 concentration with missing data

Description

Usage

Arguments

Format

Examples