This text presents the soil water retention curve data of the sand used in the experiments at NGIF within the framework of the project PLEXUS (Priming Laboratory EXperiments on infrastructure and Urban Systems)
Data presented in multiple files cover the gravimetric and volumetric water content, as well as matric suction data of the same soil at varying density and initial degree of saturation.
=====================================
Key words used to describe the data:
=====================================
Lysimeter, SuDS, Green Infrastructure, Sand, Soil water retention curve, SWRC, Gravimetric water content, Volumetric water content, Matric suction
==========================
Methodological information
==========================
Data collected includes the following:
GWC: Gravimetric water content [g/g]
VWC: Volumetric water content [%] - calculated based on dry density
Mean value of two tensiometer readings were calculated to obtain the matric suction value.
Geometric water content was calculated based on the change in mass over time and the dry weight of soil.
Volumetric water content was calculated based on the gravimetric water content and dry density.
=========================================
Overview of secondary data, if used:
=========================================
NA
=========================
Data-specific information
=========================
PLEXUS_Sand_136.csv: *.csv file of the experiment performed on PLEXUS sand at a dry density of 1.36 Mg/m^3 starting from an initially saturated state
PLEXUS_Sand_143.csv: *.csv file of the experiment performed on PLEXUS sand at a dry density of 1.43 Mg/m^3 starting from an initially saturated state
PLEXUS_Sand_143_Scanning.csv: *.csv file of the experiment performed on PLEXUS sand at a dry density of 1.43 Mg/m^3 starting from an initial gravimetric water conten of 16%
PLEXUS_Sand_163.csv: *.csv file of the experiment performed on PLEXUS sand at a dry density of 1.63 Mg/m^3 starting from an initially saturated state
GWC: Gravimetric water content [g/g]
VWC: Volumetric water content [%] - calculated based on dry density