Index Catalog // ScholarsArchive@OSU

A simple accurate method to predict time of ponding under variable intensity rainfall

Creator:: Assouline, S., Selker, J. S., and Parlange, J.-Y.
Abstract:: The prediction of the time to ponding following commencement of rainfall is fundamental to hydrologic prediction of flood, erosion, and infiltration. Most of the studies to date have focused on prediction of ponding resulting from simple rainfall patterns. This approach was suitable to rainfall reported as average values over intervals...
Resource Type:: Article
Full Text:: under variable intensity rainfall A simple accurate method to predict time of ponding under variable

Comparitive snow accumulation and melt during rainfall in forest and clearcut plots in western Oregon

Creator:: Berris, Steven Neil
Abstract:: A study was conducted to compare snow accumulation and melt during rainfall in adjacent forest and clearcut plots in the transient snow zone of the western Cascade Range in Oregon. Snow accumulation differences were determined by comparing the water equivalents of forest and clearcut snowpacks. During rain-on-snow periods, energy balances...
Resource Type:: Masters Thesis
Full Text:: Snow Accumulation and Melt During Rainfall in Forest and Clearcut Plots in Western Oregon Abstract

Fine-scale time variations of rainfall

Creator:: Trump, Clifford Lyons
Abstract:: One-minute rainrates were measured during two winter rainy seasons in western Oregon to gain insights into the time-structure of Oregon rainstorms. The averages of three non-dimensional relative variance statistics were greater on the coast than inland. Rainrate distributions showed that a greater portion of the total rain fell, at higher...
Resource Type:: Masters Thesis
Full Text:: ) (Date) Title: FINE-SCALE TIME VARIATIONS OF RAINFALL Abstract approved: William P. Elliott One-minute

A study of the relation between radar and raingage indicated rainfall over northern California

Creator:: Strem, Eric Thomas
Abstract:: The WSR-57 weather radar operated by the National Weather Service at Sacramento, California, plus a network of precipitation gages provided data for this comparison of radar reflectivity with precipitation rates. Located in a valley with mountains within range of the radar on three sides, this radar has varying sensitivity for...
Resource Type:: Masters Thesis
Full Text:: RELATION BET7EEN RADAR AND RAINGAGE INDICATED RAINFALL OVER NORTHERN CALIFORNIA/ Abstract approved: The

Prediction of runoff from rainfall records for selected Pacific slope basins

Creator:: Polvi, Robert Leo
Resource Type:: Masters Thesis
Full Text:: Prediction of runoff from rainfall records for selected

Variations in drop-size distributions as measured with a continuous raindrop recorder and compared to radar echo characteristics

Creator:: Hutcheon, Richard J. (Richard James)
Abstract:: This study examines in detail a continuous drop-size distribution recorder and selected data gathered with this recorder at various locations on 6, 15, and 31 May 1966. The drop-size distribution recorder consists of a self-contained, mobile unit able to operate without electric power. This recorder utilizes "Ozalid 105 SZ" filter...
Resource Type:: Masters Thesis
Full Text:: Change in rainfall intensity with respect to time. Case No. 1. 75 32 Change in rainfall intensity with

Infiltration under a rainfall simulator

Creator:: Will, Gregory Leonard
Abstract:: A large rainfall simulator was used to study infiltration on six soil plots. Water content and capillary pressure were measured during steady rainfall at rates less than required to produce runoff. The equipment and procedures used to make these measurements are discussed. Water content and capillary pressure data obtained as...
Resource Type:: Masters Thesis

Climate Change: Natural Variability is a Big Deal Too!

Creator:: Curtis, David C. and Prakash, Om
Abstract:: Climate changes. That’s what climate does. It is a natural and dynamic process. The National Weather Service (NWS) recognizes on-going climate change by publishing new figures for average climate every ten years. Climate averages for precipitation, temperature, and other weather parameters are computed on a 30 year basis but only...
Resource Type:: Presentation

Attenuation of rainfall intensity by forest canopies

Creator:: Keim, Richard F.
Abstract:: Interception of precipitation by forest canopies has been found previously to reduce rainfall intensity, but this effect is poorly understood. The goal of this research is to quantify the attenuation of rainfall intensity by forest canopy interception, with the specific objective of estimating the contribution of this attenuation to hillslope...
Resource Type:: Dissertation
Full Text:: August 29, 2003. Title: Attenuation of Rainfall Intensity by Forest Canopies Abstract approved

A resonating rainfall and evaporation recorder

Creator:: Stewart, Ryan D., Hut, Rolf, Rupp, David E., Gupta, Hoshin, and Selker, John S.
Abstract:: We propose a novel, accurate quantification of precipitation and evaporation, as needed to understand fundamental hydrologic processes. Our system uses a collection vessel placed on top of a slender rod that is securely fixed at its base. As the vessel is deflected, either by manual perturbation or ambient forcing (for...
Resource Type:: Article
Full Text:: A resonating rainfall and evaporation

ScholarsArchive@OSU

A simple accurate method to predict time of ponding under variable intensity rainfall

Comparitive snow accumulation and melt during rainfall in forest and clearcut plots in western Oregon

Fine-scale time variations of rainfall

A study of the relation between radar and raingage indicated rainfall over northern California

Prediction of runoff from rainfall records for selected Pacific slope basins

Variations in drop-size distributions as measured with a continuous raindrop recorder and compared to radar echo characteristics

Infiltration under a rainfall simulator

Climate Change: Natural Variability is a Big Deal Too!

Attenuation of rainfall intensity by forest canopies

A resonating rainfall and evaporation recorder

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