Published August 1996. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The research effort described in this report explores the whole question of optimization of irrigation system design, planning and operations. Optimum irrigation practices, in theory, may involve some degree of deficit irrigation (deliberate under-irrigation of crops), hence the focus of this research was the use of deficit irrigation under practical...
In this thesis, I examine the experiences of breastfeeding mothers who chose to give birth with Certified Professional Midwives at a free-standing birth center, and the factors that influence their known high rates of breastfeeding initiation and duration. Using grounded theory and data collected from participant observation, semi-structured interviews, and...
The Actively Heated Fiber Optic (AHFO) method is shown to be capable of measuring soil water
content several times per hour at 0.25 m spacing along cables of multiple kilometers in length. AHFO is
based on distributed temperature sensing (DTS) observation of the heating and cooling of a buried fiber-optic...
The Actively Heated Fiber Optic (AHFO) method is shown to be capable of measuring soil water
content several times per hour at 0.25 m spacing along cables of multiple kilometers in length. AHFO is
based on distributed temperature sensing (DTS) observation of the heating and cooling of a buried fiber-optic...
Full Text:
., Buelga, J. B., Rodriguez‐Sinobas, L., El Khoury, L., English, M., van de
Giesen, N., & Selker, J. S
The Actively Heated Fiber Optic (AHFO) method is shown to be capable of measuring soil water content several times per hour at 0.25 m spacing along cables of multiple kilometers in length. AHFO is based on distributed temperature sensing (DTS) observation of the heating and cooling of a buried fiber-optic...
We simulate three-dimensional ice temperature fields to examine spatial-temporal history of the subglacial thermal environment during the last glacial cycle. Model results suggest that 60–80% of the Laurentide Ice Sheet was cold-based (frozen to the bed) at the LGM, and therefore unable to undergo large-scale basal flow. The fraction of...
A set of model runs was made with the National Center for Atmospheric Research (NCAR) Community
Climate Model, version 3 (CCM3) to investigate and help assess the relative roles of snow cover anomalies and
initial atmospheric states on the subsequent accumulation and ablation seasons. In order to elucidate the physical...
The purpose of this study is to identify, characterize and quantify local, regional and remote effects of snow cover on western U.S. climate and water resources. An ensemble of predictability and sensitivity studies was made with the U.S. National Center for Atmospheric Research (NCAR) Community Climate Model, version 3 (CCM3)...
Stephens winter wheat was grown using conventional furrow irrigation and surge irrigation on 12 one-half-acre plots. Both systems were operated simultaneously four times during the season. Conventional irrigation applied 26.5 ac-in/ac of water with runoff of 0.8 ac-in/ac and infiltration of 25.7 ac-in/ac. Surge irrigation applied 13.7 ac-in/ac with 0.5...