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searching for Hydraulic conductivity 64 found (196 total)

Throughflow (125 words) [view diff] exact match in snippet view article find links to article

events (such as high precipitation). Flow rates are dependent on the hydraulic conductivity of the geologic medium. Fetter, C. (2001). Applied Hydrogeology

Interflow (124 words) [view diff] exact match in snippet view article find links to article

infiltrates (see infiltration (hydrology)) into the subsurface, hydraulic conductivity decreases with depth, and lateral flow proceeds downslope. As water

Richards equation (1,847 words) [view diff] exact match in snippet view article find links to article

porous media; K(h){\displaystyle \mathbf {K} (h)} is the unsaturated hydraulic conductivity; ∇z{\displaystyle \nabla z} is the geodetic head gradient, which

Construction aggregate (2,164 words) [view diff] exact match in snippet view article find links to article

strength to the overall composite material. Due to the relatively high hydraulic conductivity value as compared to most soils, aggregates are widely used in drainage

Lavaka (843 words) [view diff] exact match in snippet view article find links to article

activity in the region, the topographic relief (or slope), and hydraulic conductivity of materials in the saprolite. For instance, earthquakes in the

Claypan (992 words) [view diff] exact match in snippet view article find links to article

and sticky clay texture. When the clay swells, the low saturated hydraulic conductivity prevents the vertical water infiltration to the deeper soil horizon

Water retention curve (906 words) [view diff] exact match in snippet view article find links to article

parametrization a prediction model for the shape of the unsaturated hydraulic conductivity - saturation - pressure relationship was developed. In 1907, Edgar

Analytic element method (1,257 words) [view diff] exact match in snippet view article find links to article

domain is not as easily divided into regions of e.g. different hydraulic conductivity, as when modeling with a cell grid; however, one solution to this

Mariotte's bottle (515 words) [view diff] exact match in snippet view article find links to article

provide constant head. The Guelph Permeameter measures unsaturated hydraulic conductivity in the field and uses this principle to create a constant head.

Edgar Buckingham (848 words) [view diff] exact match in snippet view article find links to article

physics theory, and was the first to expound the dependence of soil hydraulic conductivity on capillary potential. This dependence later came to be known as

Somerton, New South Wales (1,007 words) [view diff] exact match in snippet view article find links to article

bedrock and contains coarse sands and gravel with particularly high hydraulic conductivity - acting as the main conduit for groundwater west under the Liverpool

Percolation (853 words) [view diff] exact match in snippet view article find links to article

is a potentially good place for a septic "leach field". If the hydraulic conductivity of the site is low (usually in clayey and loamy soils), then the

Flow net (1,261 words) [view diff] exact match in snippet view article find links to article

blocks mean there is a low gradient, and therefore low discharge (hydraulic conductivity is assumed constant here). An equivalent amount of flow is passing

Herman Bouwer (1,618 words) [view diff] exact match in snippet view article find links to article

networks, he developed several field methods for measuring saturated hydraulic conductivity to include the double tube permeameter, falling head seepage meter

Starling equation (2,190 words) [view diff] exact match in snippet view article find links to article

the interstitial oncotic pressure Lp{\displaystyle L_{p}} is the hydraulic conductivity of the membrane (SI units of m2·s·kg−1, equivalent to m·s−1·mmHg−1)

Frost heaving (2,499 words) [view diff] exact match in snippet view article find links to article

Non-frost-susceptible soils may be too dense to promote water flow (low hydraulic conductivity) or too open in porosity to promote capillary flow. Examples include

Submarine groundwater discharge (1,311 words) [view diff] exact match in snippet view article find links to article

hinterland can be calculated: L= ((ρs-ρf)Kf m)/(ρf Q) With Kf being the hydraulic conductivity, m the aquifer thickness and Q the discharge rate. Assuming an isotropic

Outline of hydrology (1,962 words) [view diff] exact match in snippet view article find links to article

potential from previous calibration Hydraulic conductivity Disc permeameter – measures soil hydraulic conductivity Rainfall simulator – measures output

Hydrological optimization (777 words) [view diff] exact match in snippet view article find links to article

Gorelick, Steven M. (2005). "Framework to evaluate the worth of hydraulic conductivity data for optimal groundwater resources management in ecologically

Preisach model of hysteresis (1,560 words) [view diff] exact match in snippet view article find links to article

variety of fields, including to study irreversible changes in soil hydraulic conductivity as a result of saline and sodic conditions, the modeling of soil

Mary C. Hill (667 words) [view diff] exact match in snippet view article find links to article

Princeton University in 1985. Her dissertation was An investigation of hydraulic conductivity estimation in a ground-water flow study of Northern Long Valley

Vflo (656 words) [view diff] exact match in snippet view article find links to article

with initial saturation calibration factor (slider), saturated hydraulic conductivity, wetting front suction, effective porosity, and soil depth Abstraction

Transpiration (2,349 words) [view diff] exact match in snippet view article find links to article

influence the rate of water flow from the soil to the roots: the hydraulic conductivity of the soil and the magnitude of the pressure gradient through the

Storm Water Management Model (7,250 words) [view diff] exact match in snippet view article find links to article

Infiltration: Horton: max/min rates and decay constant; Green-Ampt: hydraulic conductivity, initial moisture deficit and suction head; Curve Number: NRCS (SCS)

Porous medium (1,445 words) [view diff] exact match in snippet view article find links to article

Crawford, J.W. (1994). "The relationship between structure and the hydraulic conductivity of soil". European Journal of Soil Science. 45 (4): 493–502. doi:10

Environmental impact of the oil shale industry (1,925 words) [view diff] exact match in snippet view article find links to article

these methods can still cause groundwater contamination as the hydraulic conductivity of the remaining shale increases allowing groundwater to flow through

West Bear Creek (316 words) [view diff] exact match in snippet view article find links to article

Corbett (2008), Spatial and temporal variability of streambed hydraulic conductivity in West Bear Creek, North Carolina, USA, Journal of Hydrology, 358

Golam Shabbir Sattar (364 words) [view diff] exact match in snippet view article find links to article

Shahid, Shamsuddin (March 2016). "Deciphering transmissivity and hydraulic conductivity of the aquifer by vertical electrical sounding (VES) experiments

Environmental geology (2,018 words) [view diff] exact match in snippet view article find links to article

water table, water content, direction and rate of groundwater flow, hydraulic conductivity, value of aquifer, geochemical site characterization: chemical composition

Environmental issues in the United Arab Emirates (4,009 words) [view diff] case mismatch in snippet view article find links to article

Munjed A, Hassan D, Imran, and Salem Hegazy. "Modeling Changes in Hydraulic Conductivity Due to Siltation Using Soil Columns from Alshuwaib Dam Site, United

Genlisea (1,630 words) [view diff] exact match in snippet view article find links to article

Poppinga, Simon (December 2021). "Structural gradients and anisotropic hydraulic conductivity in the enigmatic eel traps of carnivorous corkscrew plants (Genlisea

Cryobiology (2,861 words) [view diff] exact match in snippet view article find links to article

"Cryopreservation of umbilical cord blood: 1. Osmotically inactive volume, hydraulic conductivity and permeability of CD34(+) cells to dimethyl sulphoxide". Cryobiology

Sri Niwas (1,037 words) [view diff] exact match in snippet view article find links to article

Niwas, Muhammed Celik (2012). "Equation estimation of porosity and hydraulic conductivity of Ruhrtal aquifer in Germany using near surface geophysics". Journal

Natriuretic peptide (1,731 words) [view diff] exact match in snippet view article find links to article

Reduction of pulmonary hypertension/fibrosis Elevation of capillary hydraulic conductivity Decrease in cardiac preload and afterload Endocrine Suppression

Karletta Chief (484 words) [view diff] case mismatch in snippet view article find links to article

on the Navajo Nation Thesis Soil Air Permeability and Saturated Hydraulic Conductivity: Development of Soil Corer Air Permeameter, Post-fire Soil Physical

Groundwater banking (2,549 words) [view diff] exact match in snippet view article find links to article

source. It is derived from the saturated hydraulic conductivity of the limiting layer. Saturated hydraulic conductivity measures soil permeability when the

HydroGeoSphere (1,728 words) [view diff] exact match in snippet view article find links to article

the degree of saturation, K{\displaystyle {\textbf {K}}} is the hydraulic conductivity tensor, kr{\displaystyle k_{r}} is the relative permeability of

Ecohydrology (3,495 words) [view diff] exact match in snippet view article find links to article

Q=-KA{\frac {H}{L}}} Where Q is Discharge measured in m3/sec. K is hydraulic conductivity (m/s). A is cross sectional area that the water travels (m2). Where

Trish Fraser (782 words) [view diff] exact match in snippet view article find links to article

"The effects of three earthworm species on soil macroporosity and hydraulic conductivity". Applied Soil Ecology. 10 (1–2): 11–19. doi:10.1016/S0929-1393(98)00045-6

Kansas Geological Survey (1,996 words) [view diff] exact match in snippet view article find links to article

nuclear magnetic resonance (NMR) for measuring and mapping saturated hydraulic conductivity in three dimensions. The U.S. Geological Survey helped fund a KGS

Hydrology (4,050 words) [view diff] exact match in snippet view article find links to article

made using a piezometer. Aquifers are also described in terms of hydraulic conductivity, storativity and transmissivity. There are a number of geophysical

Teamrat Ghezzehei (793 words) [view diff] exact match in snippet view article find links to article

Department of Water Resources to better understand the water retention, hydraulic conductivity and aggregate stability of the site. In particular, Ghezzehei looked

Hydrotropism (2,286 words) [view diff] exact match in snippet view article find links to article

also found in the cell membrane and appear to be involved in root hydraulic conductivity. Dietrich hypothesizes that a signal of lower water potential likely

Margaret A. Palmer (1,648 words) [view diff] exact match in snippet view article find links to article

pollution in stream-wetland complexes which were designed to increase hydraulic conductivity and filter out pollutants to reduce the total suspended solids (TSS)

Xylem (6,747 words) [view diff] exact match in snippet view article find links to article

tracheids of prevascular plants were able to operate under the same hydraulic conductivity as those of the first vascular plant, Cooksonia. The size of tracheids

Multifractal system (3,293 words) [view diff] exact match in snippet view article find links to article

K. (June 1, 2003). "Flow through porous media with multifractal hydraulic conductivity". Water Resources Research. 39 (6): 1166. Bibcode:2003WRR....39

Willamette Lowland basin-fill aquifer (843 words) [view diff] exact match in snippet view article find links to article

unit limits recharge to underlying layers due to its low vertical hydraulic conductivity. Models show recharge in the mountainous regions to exceed 40 in/yr;

Constructed wetland (4,984 words) [view diff] exact match in snippet view article find links to article

wetland system. Plants also increase soil or other root-bed medium hydraulic conductivity. As roots and rhizomes grow they are thought to disturb and loosen

Plant hormone (7,033 words) [view diff] exact match in snippet view article find links to article

Coupland D, Dutton L, Jackson MB (January 2001). "Decreased root hydraulic conductivity reduces leaf water potential, initiates stomatal closure, and slows

Glass recycling (4,817 words) [view diff] exact match in snippet view article find links to article

engineering behavior of natural well graded sand and gravel mixtures. Hydraulic conductivity tests showed that FRG and MRG samples have medium permeability with

Soil moisture (4,898 words) [view diff] exact match in snippet view article find links to article

of hydraulic functions (water retention function and unsaturated hydraulic conductivity function) and initial and boundary conditions. Preferential flow

Dirk Schulze-Makuch (2,462 words) [view diff] exact match in snippet view article find links to article

S2CID 209474384. Schulze-Makuch, D.; Cherkauer, D.S. (1998). "Variations in hydraulic conductivity with scale of measurement during aquifer tests in heterogeneous

Susan S. Hubbard (1,551 words) [view diff] exact match in snippet view article find links to article

specializes in hydrogeophysics, in particular making measurements of hydraulic conductivity, lithology and moisture movement. She has extended and advanced

Masashi Tazawa (1,847 words) [view diff] exact match in snippet view article find links to article

multiple names: authors list (link) Kiyosawa, K., Tazawa, M. (1977). "Hydraulic conductivity of tonoplast-free Chara cells". J. Membrane Biol. 37: 157–166. doi:10

Hydrus (software) (2,955 words) [view diff] exact match in snippet view article

Genuchten, M. Th. 1980. A closedform equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci. Soc. Am. J., 44:892898. Feddes,

Polymer soil stabilization (2,310 words) [view diff] case mismatch in snippet view article find links to article

Gorakhki, Mohammad H.; Bareither, Christopher A. (2017-02-01). "Hydraulic Conductivity of Fly Ash-Amended Mine Tailings". Geotechnical and Geological Engineering

Aquifer thermal energy storage (1,779 words) [view diff] exact match in snippet view article find links to article

the aquifer. Thick (>10 m) sandy aquifers are optimal. Sufficient hydraulic conductivity is required, enough that water flows easily. However, excess groundwater

Castlereagh River (6,825 words) [view diff] exact match in snippet view article find links to article

spaces of the material; the discharge rate being controlled by the hydraulic conductivity of the saturated material). The Castlereagh River and the ground

Glossary of geography terms (A–M) (26,647 words) [view diff] exact match in snippet view article

There are many different types of aquifer with various levels of hydraulic conductivity. aquifuge An impermeable rock stratum which not only obstructs the

Convection enhanced delivery (2,659 words) [view diff] exact match in snippet view article find links to article

p {\displaystyle v=-K\nabla p} , where v is velocity, K is the hydraulic conductivity of the molecule, and ∇ p {\displaystyle \nabla p} is the pressure

Simarouba amara (5,224 words) [view diff] exact match in snippet view article find links to article

Woodruff, D.; Jones, T. (2004). "Leaf photosynthetic traits scale with hydraulic conductivity and wood density in Panamanian forest canopy trees". Oecologia.

Water use in alluvial fans (3,327 words) [view diff] exact match in snippet view article find links to article

alluvial fan reaches the flat desert area, and (2) the thickness and hydraulic conductivity of the aquifer diminishes. The necessary drainage canals for watertable

Miscanthus × giganteus (27,125 words) [view diff] exact match in snippet view article find links to article

system and the lack of tillage disturbance improves infiltration, hydraulic conductivity and water storage compared to annual row crops, and results in the

Coal combustion products (9,165 words) [view diff] exact match in snippet view article find links to article

increase in bulk density and water capacity, but a decrease in hydraulic conductivity and cohesiveness. The effect of fly ash on soils and microorganisms