select_daily_reference_data

Functions for downloading,
calibrating, and analyzing atmospheric isotope data bundled
into the eddy covariance data products of the National Ecological
Observatory Network (NEON) <https://www.neonscience.org>.
Calibration tools are provided for carbon and water isotope products.
Carbon isotope calibration details are found in Fiorella et al. (2021)
<doi:10.1029/2020JG005862>, and the readme
file at <https://github.com/lanl/NEONiso>. Tools for calibrating water
isotope products have been added as of 0.6.0, but have known deficiencies
and should be considered very experimental currently.

Rich Fiorella

NEONiso

Tools to Calibrate and Work with NEON Atmospheric Isotope Data

select_daily_reference_data function

<dl><dt>standard_df</dt>
<dd>Input reference data.frame.</dd>
<dt>analyte</dt>
<dd>Are we calibrating CO2 and H2O?
(Use argument 'co2' or 'h2o', or else function will throw error)</dd>
<dt>min_nobs</dt>
<dd>Minimum number of high-frequency
observations to define a peak. If not supplied,
defaults are 200 for <code>analyte = 'co2'</code> or 30 for
<code>analyte = 'h2o'</code></dd></dl>

Arguments

select_daily_reference_data — select_daily_reference_data

<dl>

<dt>standard_df</dt>
<dd>Input reference data.frame.</dd>


<dt>analyte</dt>
<dd>Are we calibrating CO2 and H2O?
(Use argument 'co2' or 'h2o', or else function will throw error)</dd>


<dt>min_nobs</dt>
<dd>Minimum number of high-frequency
observations to define a peak. If not supplied,
defaults are 200 for <code>analyte = 'co2'</code> or 30 for
<code>analyte = 'h2o'</code></dd>

</dl>

select_daily_reference_data: select_daily_reference_data

Description

Usage

Value

Arguments