ppfd_BF.data: Ground level solar PAR photon irradiance, direct and diffuse...

In photobiologySun: Data for Sunlight Spectra

Description

Dataset containing mean, maximum, minimum and standard deviation values for total, direct and difusse photosynthetically active radiation expresed as photon irradiance. Each value is a summary 60 consecutive readings acquired once every second.

Usage

ppfd_BF.data

Format

A data frame with 24479 rows and 9 variables. variables.

Details

The variables are as follows:

• time_EEST POSIXct Local time according to EET coordinates.

• ppfd_tot_mean numeric (mol m-2 m-2)

• ppfd_tot_min numeric (mol m-2 m-2)

• ppfd_tot_max numeric (mol m-2 m-2)

• ppfd_tot_sd numeric (mol m-2 m-2)

• ppfd_diff_mean numeric (mol m-2 m-2)

• ppfd_diff_min numeric (mol m-2 m-2)

• ppfd_diff_max numeric (mol m-2 m-2)

• ppfd_diff_sd numeric (mol m-2 m-2)

Note

Instrument used: Delta-T BF5 "quantum sensor" , mounted on tripod at approximately 2 m height. Data collected with a Campbell Scientific CR6 datalogger, using analogue outputs from the sensor. Wavelength sensitivity range of the quantum sensor is 400 nm to 700 nm. Location: Viikki campus of the University of Helsinki. Coordinates: 60.226803 N, 25.019205 E.

References

https://www.delta-t.co.uk/

photobiologySun documentation built on May 2, 2019, 8:51 a.m.