1. Calvin Yau, Sunghan Ko, Dr. David Ebert
Visual Feedback on the Several Effects on Growth and Production of Grapes
Calvin Yau, Sunghan Ko, Dr. David Ebert
Presented by Hongyi Li , Gen Wan, Qian Lu
October,2014
Introduction
The focus of this project was to provide a scientific visual analysis /feedback of various weather parameters like temperature, moisture, relative humidity, solar radiation, wind precipitation and their effects on the growth of grapes.
EMG50 data logger Decagon sensors that were used to record data-Biale Vineyards, Napa, CA.
The above decagon sensors were used to measure temperature(oF), Moisture(m3/m3), Wind, direction(o), Wind speed(m/s), Solar Radiation(w/m2), Relative Humidity, and Precipitation (mm) every half an hour.
The figure above shows there are different soils such as cole silt loam and coombs gravelly loam in the vineyards. Quality of grapes will be effected by different moisture in different soils.
The figure above shows different soil samples and the weighted interpolations of moisture values on those samples.
The Dark blue spots represents most water content
It is evident that Clay soils retains more water than sand soils
Initial Analysis
Results
Conclusions
This project is still in its early stages. The ultimate goal is design a tool that farmers can rely on when growing grapes . The tool will help identify the optimum weather conditions and right kind of soils suitable for the growth of grapes, and when to carry out irrigations.
Initial excel plots showing how moisture and temperature vary at different depth of the five Sites.
From the analysis;
Site 4 and Site 5 seem to be the wettest at depths 1-4 feet.
Sites1-3 considerably drier at these depths with site 2 really dry near the surface
Site2 and Site 5 cooler at shallow depths (up to 3 feet)
Acknowledgments
The Figure above shows the temperature values plotted in the system. A user friendly interface will be built to help navigate through different weather plots as well as the timeline.
Special thanks to the department of VACCINE at Purdue especially Dr. David Ebert for his insightful guidance throughout the project and my Graduate mentors Calvin Yau and Sunghan Ko for their technical help.