Research Data Package README file

Package Title

Photosynthetically active radiation, canopy gap fraction, and leaf area index at the EucFACE

Package Creation Date

October 26th 2015

Package File Name

EucFACE_DUURSMA_GCB_LEAFAREAINDEX.zip

ID

http://handle.uws.edu.au:8081/1959.7/hiev_118

URL

http://w0297.uws.edu.au/data_files/102551

Description

Data for the paper in press at Global Change Biology: Remko A. Duursma, Teresa E. Gimeno, Matthias M. Boer, Kristine Y. Crous, Mark G. Tjoelker, David S. Ellsworth, Canopy leaf area of a mature evergreen Eucalyptus woodland does not respond to elevated atmospheric [CO2] but tracks water availability. All data files are the result of extensive processing of raw data from automated sensors at the EucFACE, most notably the PAR (photosynthetically active radiation) sensors above and below the canopy. Also included are averages of air temperature, soil water content, and other radiation measures at EucFACE or nearby sites. Data for the paper in press at Global Change Biology: Remko A. Duursma, Teresa E. Gimeno, Matthias M. Boer, Kristine Y. Crous, Mark G. Tjoelker, David S. Ellsworth, Canopy leaf area of a mature evergreen Eucalyptus woodland does not respond to elevated atmospheric [CO2] but tracks water availability. All data files are the result of extensive processing of raw data from automated sensors at the EucFACE, most notably the PAR (photosynthetically active radiation) sensors above and below the canopy. Also included are averages of air temperature, soil water content, and other radiation measures at EucFACE or nearby sites. This package includes the following files (filename keyword supplied only): - GAPFRACLAI: daily canopy gap fraction and leaf area index for the six EucFACE rings. This file can be constructed from processing of the other files included. - LEAFLITTER: dry weight and area of (approx.) monthly collection of litter in eight locations in each FACE ring. - PARAGG: 30min averages of radiation data (PAR below and above the canopy, diffuse radiation, etc.) - PHOTOGAPFRAC: canopy gap fraction estimated from analysis of canopy photos - DAILYMET: simple daily averages of common meteorological variables - SOLVARS: solar angle, day length, time of sunset and sunrise in Richmond, NSW.

Labels

Start time

End time

Software Information

Generating Software Application	HIEv
Software Version	2.1.02
URLs	https://github.com/IntersectAustralia/dc21 www.intersect.org.au

Organisational Information

Research Centre Name	Hawkesbury Institute for the Environment
Overarching Entity	University of Western Sydney
Address	Locked Bag 1797 , Penrith NSW, 2751 , Australia
Telephone	+61 2 4570 1125
Email	hieinfo@lists.uws.edu.au
Description
URLs	http://www.uws.edu.au/hie

Summary of Files

Name	Type	Size	Experiment	Facility	Download	View
FACE_RA_P0037_PARAGG_20121016-20150301_L2.csv	RAW	60MB	EucFACE_P0037_Duursma_Canopy_Photos	EucFACE	Download	View
FACE_RA_P0037_LEAFLITTER_20121009-20140814_L2.csv	RAW	69KB	EucFACE_P0037_Duursma_Canopy_Photos	EucFACE	Download	View
FACE_RA_P0037_GAPFRACLAI_20121026-20150225_L2.csv	RAW	170KB	EucFACE_P0037_Duursma_Canopy_Photos	EucFACE	Download	View
FACE_RA_P0037_PHOTOGAPFRAC_20121020-20131022_L2.csv	RAW	94KB	EucFACE_P0037_Duursma_Canopy_Photos	EucFACE	Download	View
FACE_RA_P0037_DAILYMET_20110619-20151026_L2.csv	RAW	160KB	EucFACE_P0037_Duursma_Canopy_Photos	EucFACE	Download	View
FACE_RA_P0037_SOLVARS_20120601-20200101_L2.csv	PROCESSED	11MB	EucFACE_P0037_Duursma_Canopy_Photos	EucFACE	Download	View

Experiments

EucFACE_P0037_Duursma_Canopy_Photos

ID	Experiment_39
Parent Facility	Facility - EucFACE
Description	Flat canopy photos for the determination of canopy gap fraction and leaf area index (LAI)
Start date	2012-10-20
End date
Subject	Leaf area index
Access Rights	CC BY: Attribution (http://creativecommons.org/licenses/by/3.0/au)
FOR codes	050101 - Ecological Impacts of Climate Change 060203 - Ecological Physiology
Persistent URL	http://w0297.uws.edu.au/org_level1/7/org_level2/39

Facilities

EucFACE

Code	EucFACE
Description	Eucalyptus Free-Air CO2 Enrichment Facility
Location	-33.61643299, 150.7380362, -33.61902662, 150.7382066
Parent Organisation	Hawkesbury Institute for the Environment
Primary Contact	Vinod Kumar (vinod.kumar@uws.edu.au)
Other Contact 1	Craig Barton (c.barton@uws.edu.au)
Other Contact 2	Craig Mc Namara (c.mcnamara@uws.edu.au)
Persistent URL	http://w0297.uws.edu.au/org_level1/7

Files

FACE_RA_P0037_PARAGG_20121016-20150301_L2.csv

Basic Information

Name	FACE_RA_P0037_PARAGG_20121016-20150301_L2.csv
Type	RAW
Size	60MB
File format	text/plain
Description	Half-hourly radiation data for the EucFACE This file is constructed based on radiation data in FACE_general, FACE_airvars and eddy_slowmet. The original data is averaged by 30min timestep here (the timestamp refers to the 30min before that time). See those collection codes for full documentation. The variables 'source_airvars', 'source_general' and 'source_eddy' refer to the original files on HIEv that this aggregated version was constructed from. Data for project P0037 led by Remko Duursma. Anyone can use the data if they have access.
Labels
Tags
Experiment	EucFACE_P0037_Duursma_Canopy_Photos
Facility	EucFACE
Date added	2015-10-26 10:18:24 +11:00
Added by	Remko Duursma (r.duursma@uws.edu.au)
Start date
End date
Persistent URL	http://w0297.uws.edu.au/data_files/102544
Parents
Children	EucFACE_DUURSMA_GCB_LEAFAREAINDEX.zip

FACE_RA_P0037_LEAFLITTER_20121009-20140814_L2.csv

Basic Information

Name	FACE_RA_P0037_LEAFLITTER_20121009-20140814_L2.csv
Type	RAW
Size	69KB
File format	text/plain
Description	Leaf litter data collected at the EucFACE Data owners / collectors: Kristine Crous, Andrew Gherlenda, Jeff Powell, David Ellsworth This dataset is a subset of the complete dataset, including only the leaf portion of the litter fall, which was separated manually from other components (bark, twigs, frass, etc.). Leaf litter is also converted to units of leaf area index (m2 m-2), using an estimate of specific leaf area (52.6 cm2 g-1; pers. comm. David Ellsworth), and the area of the litter baskets (0.1979 m2). Variables: - Date: YYYY-MM-DD - Ring: FACE ring (R1, R2, ...,R6) - Leaf: leaf litter on collection date (g) - dLAIlitter: litter converted to units of LAI (m2 m-2) - treatment: 'ambient' or 'elevated'
Labels
Tags
Experiment	EucFACE_P0037_Duursma_Canopy_Photos
Facility	EucFACE
Date added	2015-10-26 13:11:29 +11:00
Added by	Remko Duursma (r.duursma@uws.edu.au)
Start date
End date
Persistent URL	http://w0297.uws.edu.au/data_files/102546
Parents
Children	EucFACE_DUURSMA_GCB_LEAFAREAINDEX.zip

FACE_RA_P0037_GAPFRACLAI_20121026-20150225_L2.csv

Basic Information

Name	FACE_RA_P0037_GAPFRACLAI_20121026-20150225_L2.csv
Type	RAW
Size	170KB
File format	text/plain
Description	Estimates of canopy gap fraction and leaf area index for the EucFACE based on diffuse transmittance data. Transmittance is estimated as PAR below / PAR above the canopy, for 30min periods where the diffuse fraction > 0.98 (as estimated with the BF5 SunShine sensor at the CUP Eddy flux tower site). Estimates are daily averages by Ring. The number of observations varies between days, depending on the number of 30min cloudy periods. For details see Duursma et al. (in press, Global Change Biology) Variables: - Ring: One of six EucFACE rings (R1, R2, ..., R6) - Date: YYYY-MM-DD - Gapfraction.mean: Daily mean gapfraction (0-1) - Gapfraction.sd: within-day standard deviation of gapfraction - Gapfraction.length: Number of observations within a day - treatment: Either 'elevated' or 'ambient' - LAI: Inferred leaf area index (m2 m-2) using algorithm of Campbell&Norman 2000, based on the attenuation of diffuse radiation in a homogenous canopy.
Labels
Tags
Experiment	EucFACE_P0037_Duursma_Canopy_Photos
Facility	EucFACE
Date added	2015-10-26 14:53:58 +11:00
Added by	Remko Duursma (r.duursma@uws.edu.au)
Start date
End date
Persistent URL	http://w0297.uws.edu.au/data_files/102547
Parents
Children	EucFACE_DUURSMA_GCB_LEAFAREAINDEX.zip

FACE_RA_P0037_PHOTOGAPFRAC_20121020-20131022_L2.csv

Basic Information

Name	FACE_RA_P0037_PHOTOGAPFRAC_20121020-20131022_L2.csv
Type	RAW
Size	94KB
File format	text/plain
Description	Canopy gap fraction estimated from canopy photography Methods are described in detail in Duursma et al. 2015 (in press, Global Change Biology). The photos from which these gap fractions were calculated are also on HIEv (FACE_P0037_RA_CANPHOTO...). Variables: - Ring: One of six EucFACE rings (R1, R2, ..., R6) - northing: coordinate inside the FACE ring (at white peg) - easting: coordinate inside the FACE ring (at white peg) - filename: unique filename (also on HIEv in zipped archives, see above) - threshold: threshold determined by automatic algorithm - gapfraction: fraction of pixels with intensity > threshold, therefore, the gap fraction of the canopy - Date: YYYY-MM-DD - treatment: elevated or ambient
Labels
Tags
Experiment	EucFACE_P0037_Duursma_Canopy_Photos
Facility	EucFACE
Date added	2015-10-26 15:02:29 +11:00
Added by	Remko Duursma (r.duursma@uws.edu.au)
Start date
End date
Persistent URL	http://w0297.uws.edu.au/data_files/102548
Parents
Children	EucFACE_DUURSMA_GCB_LEAFAREAINDEX.zip

FACE_RA_P0037_DAILYMET_20110619-20151026_L2.csv

Basic Information

Name	FACE_RA_P0037_DAILYMET_20110619-20151026_L2.csv
Type	RAW
Size	160KB
File format	text/plain
Description	Simple daily averages of met drivers at EucFACE/ROS This file contains daily averages (min, max) of air temperature, relative humidity and soil water content (VWC). Measurements of VWC are at EucFACE across all sensors in all plots. All other data are from the rainout shelter experiment (ROS), because the measurements started earlier (and it was easier to compile it from those data). These data are only to be used for simple demonstration of temporal patterns, not for serious analysis of meteorology. This dataset is used in Figure 6 of Duursma et al. 2015 (in press, Global Change Biology). Variables: - Date: YYYY-MM-DD - Tair,Tmin,Tmax: mean, minimum and maximum daily temperature (deg C) - RH,RHmin,RHmax: mean, minimum and maximum daily relative humidity (percent) - VWC: volumetric water content, daily average across all TDR sensors at EucFACE.
Labels
Tags
Experiment	EucFACE_P0037_Duursma_Canopy_Photos
Facility	EucFACE
Date added	2015-10-26 15:14:30 +11:00
Added by	Remko Duursma (r.duursma@uws.edu.au)
Start date
End date
Persistent URL	http://w0297.uws.edu.au/data_files/102549
Parents
Children	EucFACE_DUURSMA_GCB_LEAFAREAINDEX.zip

FACE_RA_P0037_SOLVARS_20120601-20200101_L2.csv

Basic Information

Name	FACE_RA_P0037_SOLVARS_20120601-20200101_L2.csv
Type	PROCESSED
Size	11MB
File format	text/plain
Description	Solar position and day length data estimated for the EucFACE location. Generated with getRichmondSolar from the HIEv R package. Data in 30min timestep until 2020. Variables: sunrise: time of sunrise (hours) sunset: time of sunset (hours) daylength: daylength (hours) sunelevation: solar elevation (degrees from horizon) DateTime: YYYY-MM-DD HH:MM
Labels
Tags
Experiment	EucFACE_P0037_Duursma_Canopy_Photos
Facility	EucFACE
Date added	2015-10-26 15:19:58 +11:00
Added by	Remko Duursma (r.duursma@uws.edu.au)
Start date
End date
Persistent URL	http://w0297.uws.edu.au/data_files/102550
Parents
Children	EucFACE_DUURSMA_GCB_LEAFAREAINDEX.zip