Chalk tracer test study
نویسندگان
چکیده
A parameter identifiability study of two chalk tracer tests S. A. Mathias, A. P. Butler, T. C. Atkinson , S. Kachi, and R. S. Ward Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK Department of Earth Sciences, University College London, London WC1E 6BT, UK School of Environmental Sciences, University of East Anglia, Norwich NR4 7TU, UK now at: Institut des Sciences de la Terre, I.N.E.S. de Tebessa, Tebessa 1200, Algeria now at: Environment Agency, Solihull B29 7HX, UK Received: 2 June 2006 – Accepted: 15 July 2006 – Published: 29 August 2006 Correspondence to: S. A. Mathias ([email protected])
منابع مشابه
Migration of contaminants through the unsaturated zone overlying the Hesbaye chalky aquifer in Belgium: a field investigation.
This paper presents the results of a detailed field investigation that was performed for studying groundwater recharge processes and solute downward migration mechanisms prevailing in the unsaturated zone overlying a chalk aquifer in Belgium. Various laboratory measurements were performed on core samples collected during the drilling of boreholes in the experimental site. In the field, experime...
متن کاملThe effect of chalk on the finger-hold friction coefficient in rock climbing.
The main purpose of this study was to examine the effect of chalk on the friction coefficient between climber's fingers and two different rock types (sandstone and limestone). The secondary purpose was to investigate the effects of humidity and temperature on the friction coefficient and on the influence of chalk. Eleven experienced climbers took part in this study and 42 test sessions were per...
متن کاملUsing environmental tracers to assess the extent of river–groundwater interaction in a quarried area of the English Chalk
The Swanscombe area of Kent, SE England represents a typical example of a heavily quarried Chalk area currently undergoing re-development. Because the Chalk is also an important aquifer, a good understanding of groundwater movement is required if environmental impacts are to be minimised and the water resource maximised. In particular, the nature of the relationship between the River Darent and...
متن کاملTracer transport in a fractured chalk: X-ray CT characterization and digital-image-based (DIB) simulation
A digital-image-based simulation methodology is applied to evaluate the influence of heterogeneous porosity on the evolution of tracer concentrations in imaged tracer tests. Maps of computed tomography (CT)-number are calibrated relative to average porosity, and then thresholded to define porosity maps. These data are then used to automate the distribution of parameters within a finite element ...
متن کاملEffect of Magnesium Carbonate Use on Repeated Open-Handed and Pinch Grip Weight-Assisted Pull-Ups
The purpose was to determine if pull-up performance was affected by the use of chalk (100% magnesium carbonate) during open-handed and pinch grip weight-assisted pull-ups (WAPU) in recreationally-trained rock climbers. Furthermore, the reliability of open-handed and pinch grip WAPU was also investigated. Recreationally-active volunteers (n = 9) completed six counterbalanced trials. Participants...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006