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Last modified
7/29/2009 10:51:18 PM
Creation date
10/11/2006 10:54:30 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8030
Description
Section "D" General Correspondence - Other Organizations/Agencies (Alpha, not Basin Related)
State
CO
Date
1/12/1958
Author
RFF
Title
Resources for the Future, Annual Report for the Year Ending September 30, 1958
Water Supply Pro - Doc Type
Annual Report
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<br />The report of the Corporation, completed in August, describes the methods <br />used and the reslllts obtained. The laboratory experiments show that if <br />any adsorption does take place it is probably so small that it does not <br />interfere with the factors considered in determining the age of underground <br />waters. However, further laboratory tests and aquifer studies are needed <br />in order to confirm these favorable results. <br /> <br />- Toward the end of the year Resources for the Future arranged to <br />publish Three Water Balance Maps of Eastern North America. The maps, <br />showing potential evapotranspiration, water surplus, and water deficit for <br />an area stretching from James Bay to the Gulf of Mexico, were prepared <br />by C. \V. Thornthwaite Associates under a research agreement. Accom- <br />panying the five-color maps is a 56-page booklet interpreting the data.' <br />Precipitation data, even when supplemented by drought indices and <br />surface runoff data, provide inadequate bases for understanding moisture <br />availability. Accurate interpretation and understanding depend on <br />analysis which includes all critical elements in the hydrologic cycle: pre- <br />cipitation, evaporation, transpiration, and surface and underground move- <br />ment of water. Measurement of the basic movements of water from <br />atmosphere to earth and back again gives the information on water balance. <br />Over a period of years Dr. Thornthwaite and his organization have been <br />collecting pertinent data for calculating the water balance on a world-wide <br />basis. These include data for a network of stations in eastern North <br />America. The maps represent key items-potential evapotranspiration, <br />water surplus, and water deficit-needed in arriving at net water avail- <br />ability for the northeastern area. <br /> <br />- The manuscript of a forthcoming book "Technology in American <br />Water Development," the results of a staff study, went to The Jolms Hop- <br />kins Press in July after extensive review by engineers, political scientists, <br />administrators, and economists working in the water resources field. The <br />book, by Edward A. Ackerman, geographer, and George O. G. Lof, engi- <br />neer, assisted by Conrad Seipp, will be published in the spring of 1959. <br />The authors examine the technological changes that have had, or are <br />likely to have, an important bearing upon water development and water <br />policy decisions; explain their meaning in modern water management; and <br />trace their historical or current impact upon administrative policy and <br />operational management. It is their thesis that because technology and <br />administrative organization both are concerned with the reconciliation of <br />demand for water and the natural supplies~ the relationship between the <br />two must profoundly affect the course of water development. If organiza- <br />tional form remains static while technology is advancing, administrative <br />and management stresses will be created. <br /> <br />~ <br /> <br />I Published by Resources for the Future in November 1958. <br /> <br />13 <br />
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