Field scale evaluation of the In Situ Permeable Flow Sensor and assessment of river-aquifer interaction at the Brazos River Hydrologic Field Site / by Andrew Scott Alden.

analysis of monitoring wells at the site were compared with

Bibliographic Details
Main Author: Alden, Andrew Scott, 1959-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1996.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:analysis of monitoring wells at the site were compared with
analysis results. Statistical analyses of long-term Flow
both Flow Sensor locations accurately.
components at the site. Differences in the response of
correlated well. The azimuths obtained from both methods
developed by Dr. Sanford Ballard at Sandia National
dimensions. In the first phase of testing, Flow Sensor
Flow Sensor data and piezometric analyses. Flow Sensor
gradient analysis. The changes in velocity and direction of
groundwater flow as determined from a piezometer gradient
groundwater flow induced by the pump were evaluated using
Hydrologic Field Site near College Station, Texas. The Flow
interactions indicates that a direct and measurable linear
Laboratories, were field tested at the Brazos River
less permeable than upper portions of the aquifer. During
location suggests that lower portions of the aquifer may be
m/day at a depth of 18.3 m. Assessment of river-aquifer
magnitude and direction of ground water flow in three
of approximately 28.9 m/day at a depth of 13.7 m and 16.5
performance was assessed by comparison to piezometric
predicted the approximate position of the pumping well at
previous, long-term analyses were used in the piezometric
pump tests in the second phase of testing, groundwater flow
relationship exists between river stage and groundwater flow
results and piezometric data from monitoring wells at the
results from the Flow Sensors. In the second phase of
River and the adjacent flood plain aquifer. Components of
Saturated hydraulic conductivity values derived from
Sensor data and piezometric data from the first phase of
Sensors use a thermal perturbation technique to quantify the
site were used to monitor interactions between the Brazos
testing resulted in saturated hydraulic conductivity values
testing, two aquifer pumping tests lasting 8 and 13 days were
Two In Situ Permeable Flow Sensors (ISPFS), recently
used to field test the accuracy of the Flow Sensors.
vectors measured using piezometric and Flow Sensor data
vertical groundwater flow to river stage at each Flow Sensor
Item Description:"Major subject: Civil Engineering".
Vita.
Physical Description:xi, 87 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references.