1a.Objectives (from AD-416):
Develop an inexpensive method for real-time, remotely-accessible measurement of vineyard-scale evapotranspiration and vine water use.
1b.Approach (from AD-416):
A field based surface renewal system will be used to estimate vine and whole vineyard water use. The work will involve developing a self-calibrated, inexpensive, user-friendly surface renewal system for use in vineyards.
This agreement was established in support of objective 3 of the in-house project, which is to develop sustainable water management practices for vineyards. The goal of this project is to develop an inexpensive method for real-time, remotely-accessible measurements of vineyard-scale evapotranspiration and vine water use. Micrometeorological methods and ecosystem-scale energy and gas flux measurements have become increasingly important in soil, crop, and environmental sciences. For many scientists without formal training in atmospheric science, these techniques are relatively inaccessible. Eddy covariance, surface renewal, and other flux measurement methods require an understanding of boundary layer meteorology and extensive training in instrumentation and multiple data management programs.
The majority of these funds were sent back to the cooperator (deobligation) in order for National Grap and Wine Initiative (NGWI) to utilize the funds to perform website design and maintenance for a larger Specialty Crop Research Initiative (SCRI) funded project. Development of Surface Renewal (SR) technology has continued in small part with the funds remaining from this agreement. We established SR fields stations several commercial vineyard sites. Excellent progress has been made towards the original goal of developing SR as a stand alone technology in collaboration with University of California (UC), Davis, collaborators. Further details can be found in 5306-21220-005-06R report for 2013.