Percolation measurements based on heat flow through soil with special reference to paddy fields

Suzuki, Seitarô

doi:10.1029/jz065i009p02883

Cited by 204 publications

(170 citation statements)

References 4 publications

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“…It can be described by a heat transport equation (Domenico and Schwartz, 1998) which is analogous to the advection-dispersion equation for solute transport in groundwater. Various analytical and numerical solutions have been developed for the heat transport equation (e.g., Carslaw and Jaeger, 1959;Suzuki, 1960;Bredehoeft and Papadopolus, 1965;Stallman, 1965;Turcotte and Schubert, 1982;Silliman et al, 1995). Using these solutions, seepage rates through the streambed can be calculated from the temperature profiles measured beneath the stream (e.g., Constantz et al, 2001Constantz et al, , 2002Taniguchi et al, 2003;Becker et al, 2004).…”

Section: Heat Tracer Methodsmentioning

confidence: 99%

Measuring methods for groundwater – surface water interactions: a review

Kalbus

Reinstorf

Schirmer

2006

Hydrol. Earth Syst. Sci.

622

349

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Abstract.Interactions between groundwater and surface water play a fundamental role in the functioning of riparian ecosystems. In the context of sustainable river basin management it is crucial to understand and quantify exchange processes between groundwater and surface water. Numerous well-known methods exist for parameter estimation and process identification in aquifers and surface waters. Only in recent years has the transition zone become a subject of major research interest; thus, the need has evolved for appropriate methods applicable in this zone. This article provides an overview of the methods that are currently applied and described in the literature for estimating fluxes at the groundwater -surface water interface. Considerations for choosing appropriate methods are given including spatial and temporal scales, uncertainties, and limitations in application. It is concluded that a multi-scale approach combining multiple measuring methods may considerably constrain estimates of fluxes between groundwater and surface water.

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Section: Heat Tracer Methodsmentioning

confidence: 99%

Measuring methods for groundwater – surface water interactions: a review

Kalbus

Reinstorf

Schirmer

2006

Hydrol. Earth Syst. Sci.

622

349

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“…Obtaining direct measurements of head in variably saturated sediments beneath ephemeral streams is generally impractical, so data are usually extrapolated from a few sites. The use of temperature measurements as an indirect method for estimating groundwater velocity was proposed by Suzuki [1960] and rous medium caused by a change in temperature at the surface [Silliman et al, 1995]. All of these solutions assume vertical flow through a saturated porous medium.…”

Section: Introductionmentioning

confidence: 99%

Field study and simulation of diurnal temperature effects on infiltration and variably saturated flow beneath an ephemeral stream

Ronan¹,

Prudic²,

Thodal³

et al. 1998

Water Resources Research

141

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Abstract. Two experiments were performed to investigate flow beneath an ephemeral stream and to estimate streambed infiltration rates. Discharge and stream-area measurements were used to determine infiltration rates. Stream and subsurface temperatures were used to interpret subsurface flow through variably saturated sediments beneath the stream. Spatial variations in subsurface temperatures suggest that flow beneath the streambed is dependent on the orientation of the stream in the canyon and the layering of the sediments. Streamflow and infiltration rates vary diurnally: Streamflow is lowest in late afternoon when stream temperature is greatest and highest in early morning when stream temperature is least. The lower afternoon streamflow is attributed to increased infiltration rates; evapotranspiration is insufficient to account for the decreased streamflow. The increased infiltration rates are attributed to viscosity effects on hydraulic conductivity from increased stream temperatures. The first set of field data was used to calibrate a two-dimensional variably saturated flow model that includes heat transport. The model was calibrated to (1) temperature fluctuations in the subsurface and (2) infiltration rates determined from measured streamflow losses. The second set of field data was to evaluate the ability to predict infiltration rates on the basis of temperature measurements alone. Results indicate that the variably saturated subsurface flow depends on downcanyon layering of the sediments. They also support the field observations in indicating that diurnal changes in infiltration can be explained by temperature dependence of hydraulic conductivity. Over the range of temperatures and flows monitored, diurnal stream temperature changes can be used to estimate streambed infiltration rates. It is often impractical to maintain equipment for determining infiltration rates by traditional means; however, once a model is calibrated using both infiltration and temperature data, only relatively inexpensive temperature monitoring can later yield infiltration rates that are within the correct order of magnitude.

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“…Whereas earlier investigations, such as those of Smith (1910) and Rorabaugh (1956), used heat qualitatively to locate sources of ground-water recharge and ground-water flow paths, it was not until Suzuki (1960), Stallman (1965), and Bredehoeft and Papadopulos (1965) published analytical solutions to the coupled heat and water transport equations that thermal methods for estimating rates of subsurface water movement came into general use. Suzuki (1960) used temperature measurements to estimate infiltration and deep percolation in rice paddies by assuming saturated, vertical, steady state flow in a homogeneous medium with a sinusoidal daily surface temperature. Suzuki presented an approximate analytical solution to a simplified form of equation 15, assuming the temperature at depth was equal to the mean surface temperature.…”

Section: Emergence Of Thermal Methodsmentioning

confidence: 99%