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Full-Text Articles in Environmental Sciences

Geophysical Institute Annual Report 1966-67, University Of Alaska Fairbanks. Geophysical Institute Jan 1967

Geophysical Institute Annual Report 1966-67, University Of Alaska Fairbanks. Geophysical Institute

GI Reports

The 1966–67 Geophysical Institute Annual Report presents an overview of the year’s scientific research achievements across the Institute’s disciplines, alongside operational summaries covering finances, administrative changes, and other key activities.


Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation Jul 1966

Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation

Publications (WR)

PURPOSE The purpose of the proposed research is to quantify the effects that Lakes Mead and Powell have on the salinity in the Colorado River system, and to evaluate changes that cap be made to the operating system of the reservoirs (within legal/institutional constraints) to enhance salt precipitation and/or minimize evaporation within the reservoirs. The effect of any changes (i.e., selective withdrawal uses, pumped storage, etc.) on reservoir evaporation could also be evaluated with a goal of minimizing evaporation. This will be accomplished through the development of a mathematical model of the reservoirs as described below. BACKGROUND Two major problems …


Index To The Genera, Subgenera, And Sections Of The Pyrrhophyta, Alfred R. Loeblich Jr, Alfred R. Loeblich Iii Jan 1966

Index To The Genera, Subgenera, And Sections Of The Pyrrhophyta, Alfred R. Loeblich Jr, Alfred R. Loeblich Iii

Studies in Tropical Oceanography

No abstract provided.


Fisheries Report No 3 - Western Australian Freshwater Fisheries, Donald D. Francois Jan 1966

Fisheries Report No 3 - Western Australian Freshwater Fisheries, Donald D. Francois

Fisheries Research Reports

Most of the Australian States have a comprehensive system of inland waterways, Western Australia, however, is in a less fortunate position. True, the maps of the State show many rivers, but in much of the southern, more populous part, with no summer rain and no winter snow, the majority are virtually a chain of waterholes during the long summer months. At the same time, in a relatively small section in the south-west corner, there is a series of permanent streams flowing through what was originally dense forest. But apart from the three indigenous freshwater crustaceans, the marron (Cherax tenuimanus), the …


Summer And Autumn Rainfall In Relation To Epidemics Of Wheat Stem Rust In Western Australia, W A. Shipton Jan 1966

Summer And Autumn Rainfall In Relation To Epidemics Of Wheat Stem Rust In Western Australia, W A. Shipton

Journal of the Department of Agriculture, Western Australia, Series 4

High summer and autumn rainfalls, followed by rust infection of volunteer plants and favourable conditions during late winter and spring, lead to rust epidemics.

WIDESPREAD outbreaks of wheat stem rust are rare in Western Australia.


1964 Drought In Connecticut, The, Byron E. Janes, Joseph J. Brumbach Jun 1965

1964 Drought In Connecticut, The, Byron E. Janes, Joseph J. Brumbach

Storrs Agricultural Experiment Station

No abstract provided.


Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation Jun 1965

Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation

Publications (WR)

The survey results indicate that the impoundment of water behind Hoover Dam has not adversely affected the dissolved oxygen (DO) content and that water quality and DO content were uniform regardless of depth. The study made in April-May 1964 will provide water quality data of Lake Mead prior to releases from Lake Powell as a basis for evaluating Lake Powell's effect on water quality and limnology of Lake Mead. The performance of a DO analyzer was tested and found unsatisfactory at depths below 150 ft. Parameters tested by standard chemical analyses of water samples in the Denver Laboratory and by …


Distribution And Relative Abundance Of Billfishes (Istiophoridae) Of The Pacific Ocean, John K. Howard, Shoji Ueyanagi Jan 1965

Distribution And Relative Abundance Of Billfishes (Istiophoridae) Of The Pacific Ocean, John K. Howard, Shoji Ueyanagi

Studies in Tropical Oceanography

No abstract provided.


Kimberley Research Station Progress Report, 1964 : Climate, Jan Jerzy Basinski, E. A. Fitzpatrick, W. R. Stern Jan 1965

Kimberley Research Station Progress Report, 1964 : Climate, Jan Jerzy Basinski, E. A. Fitzpatrick, W. R. Stern

Journal of the Department of Agriculture, Western Australia, Series 4

A review of recent research in climate, soils, tropical crops and pastures, weeds, insect pests and cattle husbandry at the Kimberley Research Station.

EXTENSIVE climatic data are recorded at the Station and analysed in relation to crop performance, irrigation requirements, and farm management practices.


Available Water Supply Of The Las Vegas Ground-Water Basin Nevada, Glenn Thomas Malmberg Jan 1965

Available Water Supply Of The Las Vegas Ground-Water Basin Nevada, Glenn Thomas Malmberg

Publications (WR)

The Las Vegas ground-water basin as described in this report includes the southern part of Indian Spring Valley, Three Lakes Valley, the northern half of Ivanpah Valley, and Las Vegas Valley. These valleys in part are inferred to form a hydrologic unit that includes an area of about 3,000 square miles in the southern part of Clark County, Nev.

The valleys forming the Las Vegas ground-water basin are broad structural depressions surrounded by mountains. The climate of the region is arid, and precipitation in the basin lowlands rarely exceeds 5 inches per year. Drainage is interior except for occasional Hood …


Beach Erosion Control Study On Duval County, Fla, U.S. Army Engineer District, Jacksonville Corps Of Engineers Nov 1964

Beach Erosion Control Study On Duval County, Fla, U.S. Army Engineer District, Jacksonville Corps Of Engineers

Waterways and wildlife

The purpose of this study was to define the beach erosion and the hurricane-induced flooding problems in Duval County, to determine the most economical methods of alleviating those problems, and to determine the division of costs between the Federal Government and local interests .


The Development Of Irrigation In Nebraska, 1854–1910: A Descriptive Survey, Martin Evald Carlson May 1963

The Development Of Irrigation In Nebraska, 1854–1910: A Descriptive Survey, Martin Evald Carlson

Department of History: Dissertations, Theses, and Student Research

Preface (excerpted)

The primary purpose of this study is tto trace the development of irrigation in Nebraska from the organization of the state as a territory in 1854 through the rest of the nineteenth century. This period covers the first four stages through which irrigation progressed: individualistic, corporate, district, and state. A brief discussion of the North Platte Project is included, however, in order to carry the story into the fifth and final stage--the development of irrigation with Federal aid, as provided for in the Reclamation Act of 1902.

The emphasis of this work is on the irrigation movement and …


Systematics And Life History Of The Great Barracuda, Sphyraena Barracuda (Walbaum), Donald P. De Sylva Jan 1963

Systematics And Life History Of The Great Barracuda, Sphyraena Barracuda (Walbaum), Donald P. De Sylva

Studies in Tropical Oceanography

No abstract provided.


Interbasin Movement Of Ground Water At The Nevada Test Site, Isaac J. Winograd Mar 1962

Interbasin Movement Of Ground Water At The Nevada Test Site, Isaac J. Winograd

Publications (WR)

The present paper presents hydraulic evidence for the interbasin circulation of ground water through carbonate rocks of Paleozoic age at the Nevada Test Site. An integral part of this evidence is the discovery that aquifers in alluvium and tuff, formerly thought to be the principal aquifers at the Test Site, are semiperched above a thick tuffaceous aquiclude that separates them from the carbonate rocks.

This paper is based on one of the studies being made by the Geological
/="/">Survey for the Atomic Energy Commission. These studies seek to evaluate
/="/">the risk that may arise if ground water should …


Thirsty Cows Are Poor Milkers, S R. Dunstan Jan 1961

Thirsty Cows Are Poor Milkers, S R. Dunstan

Journal of the Department of Agriculture, Western Australia, Series 4

THE HOT summer weather is not far away, and now is a good time for the whole milk producer to attend to those points which will ensure that milk production is maintained at a high level during this period.


Preliminary Report: Monolayer Behavior Studies, 1959, Bureau Of Reclamation Jan 1960

Preliminary Report: Monolayer Behavior Studies, 1959, Bureau Of Reclamation

Publications (WR)

During the fall of 1959, monolayer behavior studies were made on two lakes in the southwest; Boulder Basin of Lake Mead, Nevada, and Lake Sahuaro near Phoenix, Arizona. These studies were made to evaluate the effect of geographical and climatological conditions on movement and behavior of monolayers. The Lake Sahuaro tests also were used to provide data for design and development of improved methods of application and maintenance of a film on this lake in anticipation of full scale, evaporation-reduction tests to be performed there during the summer of I960. The Lake Mead studies produced the following general points of …


Contour Banks For Filling Dams, B A'B Marsh Jan 1960

Contour Banks For Filling Dams, B A'B Marsh

Journal of the Department of Agriculture, Western Australia, Series 4

A LTHOUGH contour banks have been used in this State for many years to lead water into earth tanks or "dams," it is only comparatively recently that the idea has become really popular.

Thanks to the publicity given to this matter during the last three years many farmers now know that dams may be filled by contour banks, but because they do not know the finer points of the method, they are apt to mislead themselves into thinking that their territory is unsuitable for putting it into practice.


Some Chemical Changes Resulting From Industrial Waste Disposal In The Ouachita River, Carl E. Hoffman Jan 1955

Some Chemical Changes Resulting From Industrial Waste Disposal In The Ouachita River, Carl E. Hoffman

Journal of the Arkansas Academy of Science

No abstract provided.


Succession In A Dune Community At Mentor Headlands, Ohio, Harold G. Marshall Jan 1955

Succession In A Dune Community At Mentor Headlands, Ohio, Harold G. Marshall

Biological Sciences Faculty Publications

Continual sand deposition on the Lake Erie shore, adjacent to the mouth of the Grand River, has led to the formation of a developing sand dune community and through the years a successional pattern of plant growth. An analysis was made of the general plant composition of the area by means of four transects directed from the bare beach inland. Definite zonation of specific plant species was present throughout the community in parallel formation. Named for the dominant plant types they contained, the major stages were: dune grass, poplar, aspen, and oak.


Geological Survey Circular 346: First Fourteen Years Of Lake Mead, Harold E. Thomas Jan 1949

Geological Survey Circular 346: First Fourteen Years Of Lake Mead, Harold E. Thomas

Publications (WR)

This circular summarizes the results of recent studies of Lake Mead and its environs. Area-capacity tables, prepared on the basis of a hydrographic survey of the lake in 1948-49, show that the capacity of the reservoir was reduced 4. 9 percent during the first 14 years after Hoover Dam was completed, but the usable capacity was reduced only 3.2 percent. Practically all of this reduction was caused by accumulation of sediment in the reservoir. Studies of inflow and outflow indicate that the reservoir has a total storage capacity about 12 percent greater than that shown by the area-capacity table, because …


Progress Report On The Ground-Water Hydrology Of The Republican And Frenchman River Valleys, With A Section On The Chemical Quality Of The Ground Water, Herbert A. Waite, Herbert A. Swenson Jan 1948

Progress Report On The Ground-Water Hydrology Of The Republican And Frenchman River Valleys, With A Section On The Chemical Quality Of The Ground Water, Herbert A. Waite, Herbert A. Swenson

United States Geological Survey: Water Reports and Publications

Abstract for first section

This report is based on current investigations of the groundwater resources of the Republican and Frenchman River Valleys in Nebraska and includes data gathered to December 31, 1947. These studies vere started late in 1945 as a part of a program of groundwater investigations now in progress in connection with the Missouri River basin development plan. Studies to date have consisted principally of periodic observations of water table fluctuations at selected observation wells, of collection of samples of groundwater for chemical analysis, and of collection of data concerning the municipal water supplies in the valley. In …


Water Levels And Artesian Pressure In Wells In Las Vegas Valley And In Other Valleys In Nevada, 1913-1945, T. W. Robinson, George B. Maxey, J. C. Fredericks, C. Harry Jameson Jan 1947

Water Levels And Artesian Pressure In Wells In Las Vegas Valley And In Other Valleys In Nevada, 1913-1945, T. W. Robinson, George B. Maxey, J. C. Fredericks, C. Harry Jameson

Publications (WR)

The rock formations of the earth are great natural reservoirs in which a part of the water derived from rain and snow is stored. Water levels and artesian pressure in wells register the stages of these natural reservoirs. The changes in water levels or artesian pressure are indicative of the depletion or replenishment of the natural reservoirs. Systematic and periodic measurements of water levels and artesian pressure in wells have been made in Nevada, by State and Federal agencies from time to time. However, only a few of these measurements have ever been published. Under the cooperative arrangement between the …


Progress Report On The Ground-Water Resources Of The Las Vegas Artesian Basin, Nevada, George B. Maxey, C. Harry Jameson Mar 1945

Progress Report On The Ground-Water Resources Of The Las Vegas Artesian Basin, Nevada, George B. Maxey, C. Harry Jameson

Publications (WR)

Whether the tremendously increased population acquired by Las Vegas in the years 1940 to 1942 will be retained cannot at present be foretold. However, the valley will undoubtedly be expected to support a considerably larger population than it did at any time prior to 1940, and continually increasing demands on the water supply for innumerable pcacetimc activities must be anticipated. Therefore, a sound evaluation of tho ground water resources of Las Vegas Valley is directly in line with the other wisely progressive planning programs which are now operating or are taking shape in the valley as well as in the …


Freestone County, Texas [Water Quality Survey Of Wells And Springs With Test Hole Data, 1936], Samuel F. Turner Jun 1937

Freestone County, Texas [Water Quality Survey Of Wells And Springs With Test Hole Data, 1936], Samuel F. Turner

United States Geological Survey: Water Reports and Publications

Introduction

The purpose of this survey was to obtain information concerning existing wells and springs and the quantity and quality of water they yield, and to put down test holes where additional information was needed.

This project was part of a statewide Works Progress Administration project known as a "Statewide Inventory of Water Wells," sponsored by the [Texas] State Board of Water Engineers. The Division of Ground Water of the United States Geological Survey cooperated in the technical direction of the project and the Bureau of Industrial Chemistry of the University of Texas furnished laboratory space and equipment and supervised …


Irrigation Farming: A Handbook For The Proper Application Of Water In The Production Of Crops, Lucius M. Wilcox Jan 1907

Irrigation Farming: A Handbook For The Proper Application Of Water In The Production Of Crops, Lucius M. Wilcox

University of Nebraska-Lincoln Extension: Historical Materials

A handbook for the application of water in the production of crops.


Windbreaks, Fred W. Card Apr 1897

Windbreaks, Fred W. Card

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Includes the results of a survey of farmers in Nebraska, New York, Michigan, and a few other places, regarding the purpose and value of windbreaks.


The Rainfall Of Nebraska, G. D. Swezey, George A. Loveland Jun 1896

The Rainfall Of Nebraska, G. D. Swezey, George A. Loveland

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Covers the rainfall in Nebraska with respect to farming.

Includes:

Character of the precipitation

Amount of precipitation

Rainfall of the growing season

Number of rainy days

Variability of rainfall

Progressive changes in the rainfall

Monthly precipitation of all stations and locations in Nebraska from the earliest years to 1895

Average precipitation for Nebraska from the earliest years through 1895

Charts of normal precipitation--weekly, monthly, and annual


Water Supply In Nebraska, O. V. P. Stout Feb 1895

Water Supply In Nebraska, O. V. P. Stout

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Covers the water supply and irrigation with respect to farming in Nebraska in 1894.


The Aerosphere As A Network Connector Of Organisms And Their Diseases, Jeremy D. Ross, Eli S. Bridge, Diann J. Prosser, John Y. Takekawa Dec 200

The Aerosphere As A Network Connector Of Organisms And Their Diseases, Jeremy D. Ross, Eli S. Bridge, Diann J. Prosser, John Y. Takekawa

United States Geological Survey: Staff Publications

Aeroecological processes, especially powered flight of animals, can rapidly connect biological communities across the globe. This can have profound consequences for evolutionary diversification, energy and nutrient transfers, and the spread of infectious diseases. The latter is of particular consequence for human populations, since migratory birds are known to host diseases which have a history of transmission into domestic poultry or even jumping to human hosts. In this chapter, we present a scenario under which a highly pathogenic avian influenza (HPAI) strain enters North America from East Asia via postmolting waterfowl migration. We use an agent-based model (ABM) to simulate the …