Document Type

Thesis - Open Access

Award Date

1965

Degree Name

Master of Science (MS)

Department

Agricultural Engineering

Abstract

Soil erosion studies have proceeded along two basic paths in-so-far as erosion by water is concerned: 1. the measurement of soil loss and runoff caused by natural rainstorms, with pertinent characteristics of those storms and 2. The measurement of such losses when caused by artificially produced storms of arbitrarily selected characteristics. The first provides the measure for the magnitude and variability of storms as they actually occur in a given, as well as accurate measurement of losses produced by a particular storm type and intensity on a given condition of plots. The second type of storm can be produced almost any time and has the advantage, therefor, of greatly decreasing the time involved in getting an answer. A disadvantage is the great difficulty in accurately simulating any given storm type. Wind may have several effects on the simulation of rainfall or for that matter, on natural rainfall: (1) it distorts the location of the drop impact from the intended target area to some point downwind. (2) Because drops drift in the wind, they gain a horizontal velocity. Within a small plot area, wind drift may be sufficient to remove appreciable quantities to water from the test area, as wind-borne mist of fine droplets. Quantitative data concerning these effects is minimal. To gain this information, this study was conducted.

Library of Congress Subject Headings

Erosion
Rain and rainfall
Winds

Description

Includes bibliographical references

Format

application/pdf

Number of Pages

85

Publisher

South Dakota State University

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