Project Search Results

Your search for "Howes" returned 2 results.

Spatial variability in evapotranspiration related to irrigation system distribution uniformity

The following are the two main objectives and activities that will be used to identify the impact of irrigation system distribution uniformity on the spatial variability of evapotranspiration. 1. The first objective is to determine if it is plausible to evaluate LandSAT images using METRIC to evaluate evapotranspiration distribution due to distribution uniformity. 2. If the first objective is positive, the second main objective will be to evaluate the spatial distribution of evapotranspiration under water stress by comparing a predicted level of evapotranspiration non-uniformity with the measured evapotranspiration non-uniformity using METRIC processed images.

Project Number: 12-03-004
Funding Round: 13 (2011-2012)
Research Focus Area: Water and Irrigation Technology
ARI Member Campus: California Polytechnic State University, San Luis Obispo
Director: Howes, Daniel

Improving Flow Measurement Accuracy at Farm Delivery Gates in California

To improve the accuracy of, and confidence in, gate rating equations for the most common types of orifice gates in California: metergates and simple sluice gates. The expected outcomes are three products to help irrigation districts accurately measure farm delivery flow rates: 1. New rating tables for common gates (currently manufactured) installed under standard conditions; 2. Adjustment factors for non-standard conditions within certain acceptable limits; and 3. Specifications on the types of non-standard conditions that are not acceptable for accurate flow measurement (meeting the new +/-12% accuracy standard).

Project Number: 13-01-005
Funding Round: 14 (2012-2013)
Research Focus Area: Water and Irrigation Technology
ARI Member Campus: California Polytechnic State University, San Luis Obispo
Director: Howes, Daniel
 1