*** Effects of Time-Dependent Contact Angle on Wettability of Subcritically Water-Repellent Soils ***
Authors: Z.F. Wang, R. Wallach
The Department of Soil and Water Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel 

Corresponding author: R. Wallach 
Contact Information:
rony.wallach@mail.huji.ac.il
The Robert  H Smith Faculty
of Food, Agriculture and Environment
P.O. Box 12  Rehovot 76100 
ISRAEL

***General Introduction***
This dataset contains data collected during capillary rise experiments at Hebrew University of Jerusalem

It is being made public both to act as supplementary data for publications and in order for other researchers to use this data in their own work.

The data in this data set was collected at the Department of Soil and Water Sciences - The Robert H. Smith Faculty of Agriculture, Food and Environment.

***Purpose of the test campaign***
The purpose of these experiments was to investigate the effects of Time-Dependent Contact Angle on Wettability of Subcritically Water-Repellent Soils.

***Test equipment***
The contact angle was measured for sessile drops placed on uncoated and oleic acidethanol solution-coated quartz glass sides using a goniometer (EasyDrop DSA20E, Hamburg, Germany). The capillary rise dynamics was monitored using a grayscale high-speed ANDOR Zela 5.5 sCMOS camera with a zoom lens (AF Nikkor, 2485 cm, 1:2.84D, Nikon, Tokyo, Japan). The frames captured by the camera were loaded and saved on the PC using Solis Imaging Software (SOLIS 4.28.3, Andor). The camera speed was set to 100 frames/s. The meniscus propagation of capillary rise was monitored by a +10 close-up lens attached to the zoom lens. The meniscus height was analyzed frame by frame using ImageJ software (https://imagej.nih.gov/ij/). The boundaries for the moving meniscus were found by the MATLAB edge-detection package for each frame prior to the CA determination by ImageJ software.  

***Description of the data in this data set***
The data included in this data set has been organised as:

Figure 1. Time-dependent contact angle, CA(t), for (a) Clean glass slide (b) Glass slide coated with oleic acid at a concentration of 0.28 g/kg, dissolved in pure ethanol

Figure 2. Measured and predicted rise of deionized water in a uniform capillary tube of r = 0.2 mm for (a)Clean capillary tube (b)	Capillary tube coated with oleic acidethanol solution (c)	Capillary tube coated with ethanol solution

Figure 3. Capillary rise dynamics of deionized water in a oleic acidethanol solutio coated uniform capillary tube of r = 0.35 mm

