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Ralf R. Woolley

Publications and source records attributed to Ralf R. Woolley.

4 recordsLinked to original sources

Precipitation and vegetation

As time marches on, historians are usually quite faithful in recording the activities of man, and it will usually be found that Mother Nature is even more meticulous in reflecting and preserving her experiences, more especially with regard to climate and vegetation. Just how much the activities of man have done to modify the natural conditions of a virgin country may in some respects always remain a question. There is however, no longer the slightest doubt about the influence civilization may have had on the climate—which is none at all! And it is the purpose of the present paper to introduce a few trustworthy witnesses in support of the hypothesis that the activities of man have also been ineffective with respect to noteworthy changes in the general aspect of the native vegetation, outside the ranch‐fences of the West.

Eos, Transactions, American Geophysical Union

Cloudburst floods in Utah, 1850-1938

Five years after the first settlement was made in Utah, at Salt Lake City in 1847, it became manifest to the settlers both there and at Manti that "cloudbursts" were of common occurrence in this region. Other settlements were made and gradually expanded on the steep alluvial fans of the mountain streams, and reports of cloudburst storms and their attendant floods became increasingly numerous as farms and homes were damaged by them. In 1890 the theory was advanced that these floods occurred because the sheep and cattle had eaten off the vegetation in the hills, leaving nothing to hold the water back. This indictment of man's flocks and herds has become so common that during the past 20 years considerable study has been given to it. Most of the study, however, has been devoted to runoff from the catchment basins and factors involved in its control and little of it to an adequate scientific analysis of the relationship between physiographic and geologic features and the meteorologic phenomena involved in the storms

Utah

Cooperative stream measurement work in Utah: A part of Chapter 6 of Twenty-third biennial report of the State Engineer to the governor of Utah: 1940-1942

As early as 1888 the United States Geological Survey began measuring the discharge of the principal rivers of the Western States, with a view to making a continuous inventory of this resource and its utilization for the greatest public good. Until 1905 this work was done in cooperation with the State through the state engineer’s office. Stream-flow records are fundamental to the distribution of water and the adjudication of water rights – two of the principal duties of the state engineer – and with the continually increasing use of streams, both large and small, the need for more and more stream-flow records is obviously imperative.

Utah