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H. E. Thomas

Publications and source records attributed to H. E. Thomas.

At least 37 records · Page 2Linked to original sources

Continued utilization of ground-water storage basins

Doubtless most of you are more familiar with surface reservoirs, their capabilities and limitations, than you are with ground-water reservoirs. I believe that this is true of people in general, even the experts. And because of our inadequate knowledge of ground-water reservoirs, our use of them creates problems that are rarely if ever encountered in the operation of surface reservoirs. Nevertheless there are many similarities between these two basic forms of water storage, and I should like to point out some of these similarities, was well as some important contrasts.

Open-File Report↗

Interregional management of ground and surface water

I feel that there is not a large gap between what we have and what we need for "management" of the people who must give their assent to any program for management of water resources. We need a "generalist" approach in addition to our specialist approach, to achieve a synthesis of the results of the specialist's analysis of specific problems. And as a means of developing these generalists, closer coordination or perhaps "combined operations" of groups of specialists in diverse fields might provide the comprehensive and overall understanding which we need, and which is needed by the general public.

Open-File Report↗

Ground water

Explore the source record for details and available documents.

Open-File Report↗

Lake Bonneville: Geology of northern Utah Valley, Utah

Lake Bonneville was a vast Pleistocene lake that covered 20,000 square miles in northwestern Utah and had a maximum depth of about 1,000 feet. It was a body of water comparable in size to modern Lake Michigan. Surveys of the unconsolidated deposits in the Lake Bonneville basin utilize the same methods used in studies of hard rocks, namely: separation of the deposits into mappable units and contacts between formations; observations of lateral and vertical changes in lithology; and plotting of these data on the map.

Utah↗

Hydrologic reconnaissance of the Green River in Utah and Colorado

The Green River, rising in Wyoming and draining high mountains in that state, northeast Utah and northwest Colorado, is a major tributary of the Colorado River. In the late summer, after the snow has melted from these mountains, the flow in the Green River reaches its minimum for the year. At that time a large proportion of the water in the river is returned to the atmosphere by evaporation and transpiration. During a 21-day period in September 1948, when the flow was least for the year, the average flow of the river as it entered Utah from Wyoming was 515 cfs. In the 437 miles of its course through Utah and Colorado evapotranspiration losses averaged 430 cfs. The average discharge of the Green River into the Colorado was about 975 cfs. Contributions to the river in Utah and Colorado totalled 890 cfsi including 560 from tributaries. The calculated ground-water inflow was about 330 cfs, of which about 75 percent was contributed within the Uinta Basin. Verv little ground water was contributed to the river in the lower 180 miles of its course, where the river flows through canyon lands of the Colorado Plateaus. These estimates are based upon information collected during a boat reconnaissance in September 1948, and upon data available from stream-gaging stations along the Green River and many of its tributaries. From these data an accounting was made of the water--as to both quantity and quality--in several segments of the river. For each segment determinations were made of the surface outflow, loss by evapotranspiration, and surface- and ground-water inflow. During the reconnaissance information was also obtained as to the relation of stream flow to regional geology and ground-water hydrology. No detailed hydrologic studies have yet been made within the drainage basin of the Green River. On the basis of this recomiaissance, detailed studies in the Uinta Basin, Browns Park, and Echo Park areas are recommended as highly desirable, because of the possible relations of ground-water hydrology to river-basin development projects. Similar reconnaissance can be of value in delineating the areas where detailed hydrologic studies would be most fruitful throughout the upper Colorado River basin.

Colorado, Utah↗