Soil and Water Sciences
Winter Seminar
Dr. Ben Faber
Farm Advisor
UCCE Ventura County
- Location: 1002 CHASS Interdisciplinary Building - North
- Time: Wednesday, January 28, 2009, 12:10-1:00 pm
- Campus Map CHASS (INTN)
"Slope and Aspect Effect on Evaporation as Measured by Atmometer"
Abstract: Atmometers were installed on four quadrants of a hill and at three positions on the slope - toe, mid-slope and top of hill. There was clear fetch of over 1 kilometer in all directions. The hill was within 2 kilometers from the ocean which was the prevailing wind direction. Measurements were made over an eight month period from late winter to fall in New Zealand. Wind played a dominant role in evaporative loss. Depending on the season, evaporative loss was affected more or less significantly by slope aspect. On most quadrants in most seasons, greatest evaporative loss occurred mid-slope. Discussion includes the impact on irrigation frequency and amounts.