METADATA
--------

Title of the dataset: 
Data from: ‘GreenLight - An open source model for greenhouses with supplemental lighting: Evaluation of heat requirements under LED and HPS lamps’

DOI: 10.4121/78968e1b-eaea-4f37-89f9-2b98ba3ed865
URL: https://doi.org/10.4121/78968e1b-eaea-4f37-89f9-2b98ba3ed865

Creators: 
David Katzin, Greenhouse Horticulture and Flower Bulbs, Wageningen Plant Research, Wageningen University and Research, Wageningen, The Netherlands. david.katzin@wur.nl
ORCID: 0000-0001-9571-8231

Frank Kempkes, Greenhouse Horticulture and Flower Bulbs, Wageningen Plant Research, Wageningen University and Research, Wageningen, The Netherlands
ORCID: 0000-0002-6052-1903

Simon van Mourik, Agricultural Biosystems Engineering, Department of Plant Sciences, Wageningen University and Research, Wageningen, The Netherlands. 
ORCID: 0000-0001-7965-9227

Eldert J. van Henten, Agricultural Biosystems Engineering, Department of Plant Sciences, Wageningen University and Research, Wageningen, The Netherlands. 
ORCID: 0000-0002-1623-9855

Anja Dieleman, Greenhouse Horticulture and Flower Bulbs, Wageningen Plant Research, Wageningen University and Research, Wageningen, The Netherlands
ORCID: 0000-0002-6211-7090

Tom Dueck, Greenhouse Horticulture and Flower Bulbs, Wageningen Plant Research, Wageningen University and Research, Wageningen, The Netherlands

Ad Schapendonk, Photosyntax BV, Wageningen, The Netherlands

Kees Scheffers, Greenhouse Horticulture and Flower Bulbs, Wageningen Plant Research, Wageningen University and Research, Wageningen, The Netherlands

Sander Pot, Plant Dynamics BV, Wageningen, The Netherlands

Govert Trouwborst, Plant Dynamics BV, Wageningen, The Netherlands

Elly Nederhoff, Crophouse Ltd, Papamoa Beach, Bay of Plenty, New Zealand

Leo F.M. Marcelis, Horticulture and Product Physiology Group, Department of Plant Sciences, Wageningen University and Research, Wageningen, The Netherlands
ORCID: 0000-0002-8088-7232

Related publications: 
D Katzin, S van Mourik, F Kempkes, EJ van Henten. GreenLight: An open source model for greenhouses with supplemental lighting: Evaluation of heat requirements under LED and HPS lamps. 2020. Biosystems Engineering 194, pp. 61-81. https://doi.org/10.1016/j.biosystemseng.2020.03.010

D Katzin. Energy saving by LED lighting in greenhouses: A process-based modelling approach. 2021. PhD thesis, Wageningen University. https://doi.org/10.18174/544434

T Dueck, J Janse, A Schapendonk, F Kempkes, B Eveleens, K Scheffers, S Pot, G Trouwborst, E Nederhoff, L Marcelis. Lichtbenuttig van tomaat onder LED en SON-T belichting. November 2010. Rappport GTB-1040. Wageningen UR Glastuinbouw, Wageningen, The Netherlands. https://research.wur.nl/en/publications/lichtbenutting-van-tomaat-onder-led-en-son-t-belichting-2, https://edepot.wur.nl/160925

TA Dueck, J Janse, BA Eveleens, FLK Kempkes, LFM Marcelis. Growth of tomatoes under hybrid LED and HPS lighting. 2012. Acta Horticulturae, 1(952), 335–342. https://doi.org/10.17660/ActaHortic.2012.952.42

Short description of the research:
This dataset includes measurements collected during a greenhouse trial in 2009-2010 in Bleiswijk, The Netherlands, and results of simulations aimed at reproducing the greenhouse as a mathematical model.

The greenhouse trial was conducted between October 2009 and June 2010 by WUR Greenhouse Horticulture and Flower Bulbs in Bleiswijk, the Netherlands. The experiment compared the growth of cocktail tomatoes (variety Sunstream) in greenhouse compartments with 4 different installations of artificial lighting: (1) full LED toplights, (2) full HPS (high-pressure sodium) toplights, (3) hybrid HPS toplights and LED interlights (lamps between the crop rows), (4) hybrid LED toplights and LED interlights. In all installations, lamps provided in total 170 µmol/m2/s PAR light. In the hybrid installations 50% of the artificial light came from the toplights and 50% from the interlights. This dataset includes only the data used in Katzin et al (2020): outdoor weather, indoor climate, and greenhouse climate control actions, for installations (1) and (2) only (full LED toplights and full HPS toplights), between 19 October 2009 at 15:15 and 8 February 2010 at 15:15.

Model simulations were performed by GreenLight, an open-source greenhouse simulation model. Four simulations were performed: (1) A simulation of the indoor climate with HPS lamps; (2) A simulation of the indoor climate with LED lamps; (3) A simulation of the energy use with HPS lamps ; (4) A simulation of the energy use with LED lamps.

Keywords: 
Greenhouse; Lighting; Control; LED; HPS; Greenhouse lighting; Greenhouse climate; Greenhouse control; Tomato; Modelling; Simulation; Energy; Energy use

License: CC BY-SA 4.0

Funding: 
The greenhouse trials that were performed to generate the experimental data in this set were supported by Ministerie van Economische Zaken, Landbouw en Innovatie; Kas als Energiebron; Provincie Zuid Holland; Plant Dynamics; Productschap Tuinbouw; AgroEnergy;  Grodan; Philips; and Lemnis Lighting.
The simulation studies that were prformed to generate simulated data were part of the “LED it be 50%” Perspectief program number 14217, supported by the Netherlands Organization for Scientific Research - Domain Applied and Engineering Sciences (NWO-AES); Glastuinbouw Nederland; Signify; B-Mex; and Ridder Growing Solutions

The methodology used to record, collect, and organize the data is described in Methodology.txt


DESCRIPTION OF THE DATA
-----------------------

The folder "Raw data" containa the data as it arrived directly from the greenhouse climate computer.

	"Weather raw.xlsx" is organized in the following way:
		Column  Description                         			Unit             
		1 		Time 											Excel format
		2 		Outdoor air temperature 						°C
		3 		Outdoor relative humidity  						%		
		4 		Rain											0/1 (0 indicates no rain, 1 indicates rain)
		5 		Outdoor global radiation 						W m^{-2}
		6 		Wind direction 									°
		7 		Wind speed 										m s^{-1}

	"Weather raw.csv" is a csv version of "Weather raw.xlsx"

	"LED raw.xlsx" includes data for installation (1): full LED toplights (above the crop).
	"LED raw.csv" is a csv version of "LED raw.xlsx"
	"HPS raw.xlsx" includes data for installation (2): full HPS toplights (above the crop).
	"HPS raw.csv" is a csv version of "HPS raw.xlsx"
	
	The data in these files is organized in the following way:

		Column  Description                         			Unit             
		1 		Time 											Excel format 
		2 		Indoor temperature 								°C
		3 		Indoor relative humidity 						%
		4 		Indoor vapor pressure deficit  					g m^{-3}
		5 		Indoor CO2 concentration 						ppm
		6 		Operation of CO2 injection 						1 indicates active injection, 2 indicates no injection
		7 		Artificial lighting 							0 indicates lamps are off, 100 indicates lamps are on
		8 		Grow pipes inlet temperature 		°C, except values of 0 indicate the pump was off (no heating was actively provided)
		9 		Pipe rail inlet temperature 		°C, except values of 0 indicate the pump was off (no heating was actively provided)
		10 		Aperture of wind side ventilation windows 		0-100 (100 is fully open)
		11 		Aperture of lee side ventilation windows 		0-100 (100 is fully open)
		12 		Position of energy screen 						0-100 (100 indicates fully deployed screens)
		13 		Position of blackout screen 					0-100 (100 indicates fully deployed screens)

The folder "Processed data" contains the data used for simulations, as in:
	D Katzin, S van Mourik, F Kempkes, EJ van Henten. GreenLight: An open source model for greenhouses with supplemental lighting: Evaluation of heat requirements under LED and HPS lamps. 2020. Biosystems Engineering 194, pp. 61-81. https://doi.org/10.1016/j.biosystemseng.2020.03.010

	"dataLED.mat" contains data used for simulations related to the LED compartment
	"dataLED.csv" is a csv version of "dataLED.mat"
	"dataHPS.mat" contains data used for simulations related to the HPS compartment
	"dataHPS.csv" is a csv version of "dataHPS.mat"
	
	The data in these files is organized in the following way:

		 Column    Description                         Unit             
		  1 		Time 								MATLAB datenum (days since 0/0/0000)
		  2 		Outdoor global radiation 			W m^{-2}
		  3 		Outdoor air temperature 			°C
		  4 		Outdoor relative humidity  			%		
		  5 		Outdoor wind speed 					m s^{-1}
		  6 		Indoor temperature 					°C
		  7 		Indoor vapor pressure deficit  		g m^{-3}
		  8 		Energy screen closure 				0-100 (100 is fully closed)
		  9 		Black out screen closure			0-100 (100 is fully closed)
		  10 		Lee side ventilation aperture		0-100 (100 is fully open)
		  11 		Wind side ventilation aperture 		0-100 (100 is fully open)
		  12 		Pipe rail inlet temperature 		°C, except values of 0 indicate the pump was off (no heating was actively provided)
		  13 		Grow pipes inlet temperature 		°C, except values of 0 indicate the pump was off (no heating was actively provided)
		  14 		Lights on/off 						0/1 (1 is on)
		  23		CO2 injection status				0/1 (1 is on)
		  24 		Indoor CO2 concentration 			ppm

The folder "Simulation data" contains the files used for simulation and the simulation outputs.
	The subfolder "Source code" contains the MATLAB code used to run the simulation and generate the outputs
		The subfolders "Source code\BramVanthoorModelVer2" and "Source code\StateSpaceModel" contain the code used for the original Katzin et al. 2020 paper.
		The scripts "runKatzin2020simulations.m" and "generateKatzin2020FiguresTables" can be used to reproduce the data, figures, and tables in the original Katzin et al. 2020 paper.
		An updates, cleaned-up version of this code is available at https://github.com/davkat1/
			https://github.com/davkat1/GreenLight 	contains the latest version of "Source code\BramVanthoorModelVer2"
			https://github.com/davkat1/DyMoMa 		contains the latest version of "Source code\StateSpaceModel"
	The subfolder "MATLAB output" contains 2 subfolders:
		"Original data 2019" contains the original MATLAB files used for the Katzin et al. 2020 paper.
		"Replicated 2023" are a replication of the data, created in July 2023 by running "runKatzin2020simulations.m" and "generateKatzin2020FiguresTables" using MATLAB R2018b on Windows 10.
	The subfolder "CSV output" contains the simulation results (of the original 2019 data) in CSV format.
	The file "generateCsvData.m" was used (using MATLAB R2021b on Windows 10) to generate "CSV output".

Further information on how the data was collected and processed is provided in Methodology.txt

INFORMATION AND CONTACT
-----------------------
This Readme was written in August 2023 by David Katzin, Greenhouse Horticulture and Flower Bulbs, Wageningen University and Research. david.katzin@wur.nl
