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Monday, November 9, 2020 | History

2 edition of Evapotranspiration of groundwater found in the catalog.

Evapotranspiration of groundwater

R. E. Jackson

Evapotranspiration of groundwater

a time series analysis of the hydrologic regimen of a groundwater discharge area.

by R. E. Jackson

  • 348 Want to read
  • 29 Currently reading

Published by Environment Canada in Ottawa .
Written in English

  • Groundwater.,
  • Groundwater -- Manitoba

  • Edition Notes

    Bibliography: p. 28-29.

    SeriesCanada. Inland Waters Directorate, Water Resources Branch. Scientific series no. 17
    The Physical Object
    Paginationix, 40 p. illus., maps. ;
    Number of Pages40
    ID Numbers
    Open LibraryOL20049139M

    The intransigence of some groundwater users became less of an obstacle with the rise of options for remote observation. For instance, a pair of twin satellites launched by NASA were able to estimate that Central Valley aquifers had, just between and , lost 25 million acre-feet of groundwater – well more than half of California’s annual groundwater use around that time. Other articles where Groundwater recharge is discussed: aquifer: Recharge: drainage is referred to as groundwater recharge. Rates of groundwater recharge are greatest when rainfall inputs to the soil exceed evapotranspiration losses. When the water table is deep underground, the water of the aquifer may be exceedingly old, possibly a result of a past climatic regime. Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table.

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Evapotranspiration of groundwater by R. E. Jackson Download PDF EPUB FB2

Of this rainfall, an annual mean of inches (about 93 percent) was simulated as evapotranspiration, inches (about 6 percent) was simulated as groundwater recharge, and inches (about 2 percent) was simulated as surface : Benjamin J.

Dietsch. Simulation of Streamflow, Evapotranspiration, and Groundwater Recharge in the Middle Nueces River Watershed, South Texas. [U.S. Department of the Interior] on *FREE* shipping on qualifying offers. The U.S. Geological Survey—in cooperation with the U.S. Army Corps of Engineers, Fort Worth District; City of Corpus Christi; Guadalupe–Blanco River.

Evapotranspiration is the process that transfers water. from land surface to the atmosphere and occurs as evaporation (or sublimation when below freezing) from open water, soil, and plant canopies, and as transpiration from : Michael T.

Moreo, Brian J. Andraski, C. Amanda Garcia. Evapotranspiration occurs in the zones where groundwater is too close to the surface. These zones are known as wetlands. Water may not be emanating or the terrain may not be wet, but the water table is located high enough for plant's roots to be able to consume groundwater.

The evapotranspiration is set equal to the sum of storage change plus groundwater recharge. The former is represented by the variation of the groundwater level, while the latter is derived from the water level behavior at Evapotranspiration of groundwater book.

Both quantities are multiplied by the specific yield (or drainable porosity), which serves as a conversion by: In arid and semi-arid regions, an alarming amount of groundwater is evapotranspirated by crops in irrigated areas or phreatophytes along river valleys due to shallow groundwater tables.

Groundwater evapotranspiration does not only reduce available water resources and thus water use efficiency, but also cause soil salt accumulation. A comparative study of groundwater evapotranspiration functions. A comparative study of groundwater the full power of the method is overlooked and very few books.

Groundwater evapotranspiration estimation based on the modeling and WTF methods may be considered the simplest, easiest, and least expensive technique available but the method involves a number of sources of uncertainty (Soylu et al., ).

In addition, a reliable quantification of actual evapotranspiration requires a comprehensive investigation that combines the.

Here, evapotranspiration is defined as the water lost to the atmosphere from the ground surface, evaporation from the capillary fringe of the groundwater table, and the transpiration of groundwater by plants whose roots tap the capillary fringe of the groundwater table. The banner at the top of this page offers an even more simple definition.

This chapter discusses the reduction in transpiration induced by soil moisture stress or soil water salinity. The resulting evapotranspiration will deviate from the crop evapotranspiration under standard conditions.

The evapotranspiration is computed by using a water stress coefficient, K s, describing the effect of water stress on crop transpiration.

Evapotranspiration generally constitutes the second largest component of the water budget, after precipitation. Groundwater ET, caused primarily by deep-rooted phreatophytes, is a significant component of groundwater discharge for many aquifers.

Phreatophyte is defined as aFile Size: 3MB. Water table dynamics are linked to the atmosphere through evapotranspiration and recharge. The assimilation of observed evapotranspiration values should thus improve groundwater model results. This paper presents a method for assimilating evapotranspiration data into a coupled unsaturated zone and groundwater model using the ensemble Kalman : Simone Gelsinari, Simone Gelsinari, Rebecca Doble, Edoardo Daly, Valentijn R.N.

Pauwels. Evapotranspiration of groundwater: a time series analysis of the hydrologic regimen of a groundwater discharge area.

Ground-Water Discharge Dete rmined from Measurements of Evapotranspiration, Other Available Hydrologic Components, and Shallow Water-Level Changes, Oasis Valley, Nye County, Nevada Water-Resources Investigations Report Prepared in cooperation with the OFFICE OF ENVIRONMENTAL RESTORATION AND WASTE MANAGEMENT U.S.

Evapotranspiration and Groundwater A Brief Overview John Wheaton Montana Bureau of Mines and Geology Evapotranspiration affects groundwater by intercepting potential recharge and by removing water directly from aquifer In Montana, the Potential Evapotranspiration far exceeds Precipitation.

NATIONAL WEATHER SERVICE OFFICE OF HYDROLOGY File Size: 4MB. As shown, the greatest proportion, about 67 percent, returns to the atmosphere through evapotranspiration, about 29 percent is discharged from the conterminous United States as net surface-water outflow into the Pacific and Atlantic Oceans and across the borders into Canada and Mexico, about 2 percent is discharged as ground-water outflow, and about 2 percent is.

Evapotranspiration. Evapotranspiration includes the process of direct evaporation to the atmosphere as well as the indirect process of transpiration, wherein trees and plants absorb water through their roots and transmit it through the plants, where it. over the last 50 years to estimate evapotranspiration from different climatic variables.

Some of these derived from the now well-known Penman equation (Penman, ) to determine evaporation from open water, bare soil and grass (now called evapotranspiration) based on a combination of an energy balance and an aerodynamic formula, given as. As an indispensable component of groundwater circulation, groundwater evapotranspiration rate (ETG) estimation using water table fluctuations is a hot research topic in the past decades.

Evapotranspiration is the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere. Evaporation accounts for the movement of water to the air from sources such as the soil, canopy interception, and waterbodies.

Transpiration accounts for the movement of water within a plant and the subsequent loss of water as vapor through stomata. This is an introductory book on hydrology that covers the fundamental theories on hydrological cycle (water balance, atmospheric water, subsurface water, surface water), precipitation analysis, evaporation and evapotranspiration processes, infiltration, ground water movement, hydrograph analysis, rainfall runoff modelling (unit hydrograph), hydrological flow routing, measurements /5(32).

Groundwater Vegetation Interactions Summaries. Water Budget Analysis Summary. This study task develops a hydrologic model for a river-reach and floodplain area of the Cosumnes River for estimating water budget components, including channel, vadose zone, and bank storage, riparian evapotranspiration, and aquifer recharge.

The evapotranspiration is commonly expressed in millimetres of water used per day (mm/day) or per week (mm/week) or per month (mm/month). Factors influencing crop evapotranspiration. Many factors influence the evapotranspiration of the crop. The main ones and their effects are shown in the following table.

12nd International Conference on Urban Drainage, Porto Alegre/Brazil, September 1 Quantifying the restoration of evap. and groundwater recharge from infilt. syst. Quantifying the restoration of evapotranspiration and groundwater recharge by vegetated infiltration systems P.

Hamel*1, T. Fletcher1, C.J. Walsh2, E. Plessis3 1 Department of Civil Engineering, Building. Evapotranspiration - An Overview contains recent advances in the physics of evaporation and transpiration from a typical experimental site to large scale areas.

It incorporates many years of authors experience with the latest research on the methods and the models used worldwide, engaging advanced technology and modern instrumentation.

The reader benefits from the in Cited by: 2. The assessment of spatial and temporal distribution of groundwater recharge is required as an input to develop the regional groundwater model in the Drava flood plain for more accurate simulations of different management scenarios.

WetSpass-M, a GIS-based spatially-distributed water balance model, was implemented to assess monthly, seasonal, and the annual Cited by: 2. This book covers aspects of groundwater resource characterisation and management.

The inherent heterogeneous and isotropic nature of aquifers coupled with the unpredictable effects of climate change calls for continuous improvement and understanding of hydrogeology site characterisation techniques in theory and application to better understand and manage groundwater.

We believe that this book Author: Modreck Gomo. Model results indicated that groundwater-supported evapotranspiration accounted for as much as 12% (10 cm) of evapotranspiration.

The aquifers of highest hydraulic conductivity had the least amount of groundwater-supported evapotranspiration owing to a deep water by: The U.S. Geological Survey, in cooperation with the Fond du Lac Band of Lake Superior Chippewa, assessed hydraulic properties of geologic material, recharge, and evapotranspiration, and the effects of ditching on the groundwater resources in the Stoney Brook watershed in the Fond du Lac Reservation.

Geologic, groundwater, and surface-water. Groundwater and vegetation interactions are substantially affected by evapotranspiration dynamics. Our sub-task was to quantify evapotranspiration at two sites, where other data were being gathered by hydrological researchers.

Operational hypotheses. Evapotranspiration from riparian vegetation is greater than that for other dryland ecosystems. 7. Evapotranspiration from Groundwater (Et) Evapotranspiration from groundwater occurs in waterlogged areas or in forested areas with roots extending to the water table.

Depth to water table maps may be prepared based on well inventory data to bring into focus the extensiveness of shallow water table areas. Water Balance Modelling: Concepts and Applications ***China***.book Page 31 Monday, Ap AM.

32 Water balance modelling T HE MOVEMENT of water through the continuum of evapotranspiration, surface runoff and. The Book Introduces To The Reader All Aspects Of Ground Water I.E., Its Assessment, Development, Utilisation And Management.

Practical Application Of Different Formulae For Field Conditions, Data Collection And Processing, Test Procedures And Principles Of Design Are Worked Out To Illustrate The Theory And Design Revised Edition Includes Reviews: 2.

Estimation of water fluxes, such as groundwater recharge and loss, is vital for water resources assessment and planning. In this study, lysimeter measurements at the Wudaogou Hydrological Experiment Station in the Huaihe River plain region are used for analyzing characteristics of groundwater recharge from precipitation and groundwater loss due to evapotranspiration.

Estimates of consumptive use and ground-water return flow using water budgets in Palo Verde Valley, California / (Tucson, Ariz.: Dept. of the Interior, U.S. Geological Survey ; Denver, CO: Books and Open-File Reports Section [distributor], ), by Sandra J.

Owen-Joyce, Steven L. Kimsey, Geological Survey (U.S.), and United States. Bureau of. Evapotranspiration (ET) is a term describing the sum of evaporation and plant transpiration from the earth's land surface to atmosphere, including soil (soil evaporation), and from vegetation (transpiration).

about 2 percent is discharged as groundwater outflow, and about 2 percent is consumed by people, animals, plants, and used for. Estimated ground-water discharge by evapotranspiration from Death Valley, California, Estimating evapotranspiration and groundwater flow from water-table fluctuations for a general wetland scenario Martha L.

Carlson Mazur,1,2* Michael J. Wiley2 and Douglas A. Wilcox3 1 USGS – Great Lakes Science Center, Green Road, Ann Arbor, MI USA 2 School of Natural Resources and Environment, University of Michigan, Church Street, Ann Arbor, MI.

@article{osti_, title = {Evapotranspiration Dynamics and Effects on Groundwater Recharge and Discharge at the Tuba City, Arizona, Disposal Site}, author = {None, None}, abstractNote = {The U.S.

Department of Energy Office of Legacy Management is evaluating groundwater flow and contaminant transport at a former uranium mill site near Tuba City. 4 GROUNDWATER AWWA Manua M21 Figure 0 2 4 6 8 10 12 0 2 4 6 8 10 12 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Mean Rainfall (in.) Evapotranspiration Excess Evapotranspiration Shortfall Rainfall vs.

Water Demand Mean Rainfall A comparison of ET rates and rainfall in South Florida Precipitation. Total evapotranspiration: Total evapotranspiration is the sum of plant transpiration and evaporation loss from land and ocean to atmosphere.

Transpiration refers to the motion of water in the plants and subsequent reduction of water from leaves as vapour.evapotranspiration and groundwater recharge using lysimeter measurement data in Germany C.-Y. Xu 1,2 and D. Chen3,4* 1 Uppsala University, Department of Earth Sciences, Hydrology, Villav¨a Uppsala, Sweden 2 Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, People’s Republic of China.Validation of the baseline simulations of streamflow, groundwater depth and evapotranspiration are provided in the SI of Maxwell and Condon The CONUS model is designed to simulate modern climate applied to natural hydrologic systems (i.e.

Author: Laura E. Condon, Adam L. Atchley, Reed M. Maxwell.