Alazard, M., Boisson, A., Pettenati M., Picot-Colbeaux, G., Perrin, J., Dewandel, B., Maréchal J.C., Ahmed, S., Kloppmann, W. (2016) Investigation of recharge dynamics and flow paths in a fractured crystalline aquifer in semi-arid India using borehole logs: implications for managed aquifer recharge. Hydrogeology journal, 24, 35-37. DOI: 10.1007/s10040-015-1323-5


Alazard, M., Boisson, A., Maréchal, J.-C., Perrin, J., Dewandel, B., Schwarz, T., Pettenati, M., Picot-Colbeaux, G., Kloppman, W., Ahmed, S., (2015). Investigation of recharge dynamics and flow paths in a fractured crystalline aquifer in semi-arid India using borehole logs: implications for managed aquifer recharge. Hydrogeology Journal 1–23. doi:10.1007/s10040-015-1323-5

Guiheneuf, N., O. Bour, A. Boisson, T. Leborgne, M. W. Becker, B. Nigon, M. Wajiduddin, S. Ahmed and J.C. Marechal (2015), Identification of transport processes in fractured crystalline rock from different forced-gradient tracer experiments conducted in Southern India, Submitted to Contaminant Hydrology.

Picot-ColbeauxGéraldine, Thiéry Dominique, Pettenati Marie, Boisson Alexandre, Perrin Jérome, Sarah S., Dewandel Benoît, Maréchal Jean- Christophe, Ahmed S., Kloppmann Wolfram (2015), Modeling managed aquifer recharge capacity of crystalline aquifers in semi-arid context (South India): Implementing natural percolation tank dynamics into MARTHE code, Submitted to Journal of Hydrological Engineering.

Boisson A., Perrin J., Dausse A., Riotte J., Ahmed S. (2015) Paddy field hydrodynamics revealed by a tracer test, South India, Submitted to Jour. Hydrology.

Pauwels H., Négrel P., Dewandel B., Perrin J., Mascré C., Roy S. and Ahmed S. (2015) Hydrochemical Borehole Loggings For Characterizing Fluoride Contamination In A Heterogenous Aquifer (Maheshwaram, India), Jour. of Hydrol. 525, 302-312

Boisson, A., Marechal, J.C., Perrin, J., Dewandel, B. and Ahmed, S. (2015) Impact of vertical geological structure and water table depletion on Indian crystalline aquifers, Engineering Geology for Society and Territory, Vol 3:583-587. DOI: 10.1007/978-3-319-09054-2_117

Boisson A., N. Guihéneuf, J. Perrin, O. Bour, B. Dewandel, A. Dausse, M. Viossanges, S. Ahmed and JC. Maréchal (2015), Determining the vertical evolution of hydrodynamic parameters in weathered and fractured south Indian crystalline-rock aquifers: insights from a study on an instrumented site, Hydrogeology Journal, 23, 757-773

Boisson, A., Alazard, M., Picot-Colbeaux, G., Pettenati, M., Perrin, J., Chandra, S., Dewandel, B., Ahmed, S., Maréchal, J.C and Kloppmann, W. Percolation tanks as Managed Aquifer Recharge structures in crystalline aquifers – An example from the Maheshwaram watershed. SaphPani Handbook – Chapter 7

Boisson, A., Guihéneuf, N., Perrin, J., Bour, O., Dewandel, B., Dausse, A., Viossanges, M., Ahmed, S., Maréchal, J.C., 2015. Determining the vertical evolution of hydrodynamic parameters in weathered and fractured south Indian crystalline-rock aquifers: insights from a study on an instrumented site. Hydrogeol J 23, 757–773. doi:10.1007/s10040-014-1226-x


Boisson, A., Baisset, M., Alazard, M., Perrin, J., Villesseche, D, Kloppmann, W., Chandra, S., Dewandel, B., Picot-Colbeaux, G., Ahmed, S., Maréchal, JC. (2014) Comparison of surface and groundwater balance approaches in the evaluation of managed aquifer recharge structure: Case of a percolation tank in hard rocks aquifer in India. Journal of Hydrology 519:1620-1633

Boisson, A., Villesseche, D., Baisset, M., Perrin, J., Viossanges, M., Kloppmann, W., Chandra, S., Dewandel, B., Picot-Colbeaux, G., Rangarajan, R., Maréchal, J.C., Ahmed, S., (2014). Questioning the impact and sustainability of percolation tanks as aquifer recharge structures in semi-arid crystalline context. Environmental Earth Sciences DOI 10.1007/s12665-014-3229-2

Chandra, S., Boisson, A., Ahmed, S. Quantitative characterization to construct hard rock lithological model using dual resistivity borehole logging. Arab J Geosci. DOI 10.1007/s12517-014-1448-1

Guihéneuf, N., Boisson, A., Bour, O., Dewandel, B., Perrin, J., Dausse, A., Viossanges, M., Chandra, S., S. Ahmed, S., Maréchal, J.C. (2014). Groundwater flows in weathered crystalline rocks: impact of piezometric variations and depth-dependent fracture connectivity. J. Hydrol.511: 320-334.

Pettenati M., Picot-Colbeaux, G., Thiéry, D., Boisson, A., Alazard, M., Perrin, J., Dewandel, B., Maréchal, J.C., Ahmed, S., Kloppmann, W. 2014 Water quality evolution during managed aquifer recharge (MAR) in India crystalline basement aquifers: reactive transport modeling in critical zone. (2014) GES - Procedia: Earth and Planetary Science. (10) 82-87 DOI: 10.1016/j.proeps.2014.08.016

Sarah S., Ahmed S., Boisson, A., Violette S and de Marsliy .G . (2014) Projected groundwater balance as a state indicator for addressing sustainability and management challenges of overexploited crystalline aquifers. Journal of Hydrology 519:1405-1419


Pettenati, M., Perrin, J., Pauwels, H., and Ahmed, S. (2013), Simulating fluoride evolution in groundwater using a reactive multicomponent transient transport model: Application to a crystalline aquifer of Southern India, Applied Geochemistry, 29, 102-116.


Dewandel, B., Maréchal, J. C., Bour, O., Ladouche, B., Ahmed, S., Chandra, S., and Pauwels, H. (2012), Upscaling and regionalizing hydraulic conductivity and effective porosity at watershed scale in deeply weathered crystalline aquifers, Journal of Hydrology, 416-417, 83-97.

Perrin, J., Ferrant, S., Massuel, S., Dewandel, B., Maréchal, J. C., Aulong, S., and Ahmed, S. (2012), Assessing water availability in a semi-arid watershed of southern India using a semi-distributed model, Journal of Hydrology, 460-461, 143-155.


Chandra, S., Ahmed, S., and Rangarajan, R. (2011), Lithologically constrained rainfall (LCR) method for estimating spatio-temporal recharge distribution in crystalline rocks, Journal of Hydrology, 402(3–4), 250-260.

Dewandel, B., Lachassagne, P., Zaidi, F. K., and Chandra, S. (2011), A conceptual hydrodynamic model of a geological discontinuity in hard rock aquifers: Example of a quartz reef in granitic terrain in South India, Journal of Hydrology, 405(3-4), 474-487.

Negrel, P., Pauwels, H., Dewandel, B., Gandolfi, J. M., Mascré, C., and Ahmed, S. (2011), Understanding groundwater systems and their functioning through the study of stable water isotopes in a hard-rock aquifer (Maheshwaram watershed, India), Journal of Hydrology, 397(1-2), 55-70.

Pauwels, H., Pettenati, M., Perrin, J., and Negrel, P. (2011), Vulnerability of intensively-exploited hard-rock aquifers to fluoride contamination in India: impact of global change, in Fourth International Groundwater Conference (IGWC-2011), edited, Madurai, India.

Perrin, J., Mascré, C., Pauwels, H., and Ahmed, S. (2011), Solute recycling: An emerging threat to groundwater quality in southern India?, Journal of Hydrology, 398(1-2), 144-154.


Chandra, S., Dewandel, B., Dutta, S., and Ahmed, S. (2010), Geophysical model of geological discontinuities in a granitic aquifer: Analyzing small scale variability of electrical resistivity for groundwater occurrences, Journal of Applied Geophysics, 71(4), 137-148.

Dewandel, B., Perrin, J., Ahmed, S., Aulong, S., Hrkal, Z., Lachassagne, P., Samad, M., and Massuel, S. (2010), Development of a tool for managing groundwater resources in semi-arid hard rock regions: application to a rural watershed in South India, Hydrological Processes, 24(19), 2784-2797.

Khan, H. H., Khan, A., Ahmed, S., and Perrin, J. (2010), GIS-based impact assessment of land-use changes on groundwater quality: study from a rapidly urbanizing region of South India, Environmental Earth Sciences, 63(6), 1289-1302.

Négrel, P., Millot, R., Roy, S., Guerrot, C., and Pauwels, H. (2010), Lead isotopes in groundwater as an indicator of water–rock interaction (Masheshwaram catchment, Andhra Pradesh, India), Chemical Geology, 274(3-4), 136-148.

Perrin, J., Massuel, S., and Ahmed, S. (2010), Contribution of percolation tanks to total aquifer recharge: the example of Gajwel watershed, southern India, in Ground Water Conference, edited, Abu Dhabi.


Maréchal, J.-C. (2009), Editor′s message: the sunk cost fallacy of deep drilling, Hydrogeology Journal, 18(2), 287-289.


Chandra, S., Ahmed, S., Ram, A., and Dewandel, B. (2008), Estimation of hard rock aquifers hydraulic conductivity from geoelectrical measurements: A theoretical development with field application, Journal of Hydrology, 357(3-4), 218-227.

Dewandel, B., Gandolfi, J. M., de Condappa, D., and Ahmed, S. (2008), An efficient methodology for estimating irrigation return flow coefficients of irrigated crops at watershed and seasonal scale, Hydrological Processes, 22(11), 1700-1712.


Dewandel, B., Gandolfi, J. M., Zaidi, F. K., Ahmed, S., and Subrahmanyam, K. (2007), A decision support tool with variable agroclimatic scenarios for sustainable groundwater management in semi-arid hard-rock areas, Current Science, 92(8), 1093-1102.

Zaidi, F. K., Ahmed, S., Dewandel, B., and Maréchal, J.-C. (2007), Optimizing a piezometric network in the estimation of the groundwater budget: a case study from a crystalline-rock watershed in southern India, Hydrogeology Journal, 15(6), 1131-1145.


Dewandel, B., Lachassagne, P., Wyns, R., Maréchal, J. C., and Krishnamurthy, N. S. (2006), A generalized 3-D geological and hydrogeological conceptual model of granite aquifers controlled by single or multiphase weathering, Journal of Hydrology, 330(1-2), 260-284.

Maréchal, J. C., Dewandel, B., Ahmed, S., Galeazzi, L., and Zaidi, F. K. (2006), Combined estimation of specific yield and natural recharge in a semi-arid groundwater basin with irrigated agriculture, Journal of Hydrology, 329(1-2), 281-293.

Maréchal, J.-C., Ahmed, S., Engerrand, C., Galeazzi, L., and Touchard, F. (2006), Threatened Groundwater Resources in Rural India: An Example of Monitoring, Asian Journal of Water, Environment and Pollution, 3(2), 15-21.


Maréchal, J. C., Dewandel, B., and Subrahmanyam, K. (2004), Use of hydraulic tests at different scales to characterize fracture network properties in the weathered-fractured layer of a hard rock aquifer, Water Resources Research, 40(11).

Marechal, J. C., Wyns, R., Lachassagne, P., and Subrahmanyam, K. (2004), Vertical anisotropy of hydraulic conductivity in the fissured layer of hard-rock aquifers due to the geological patterns of weathering profiles, Journal of the Geological Society of India, 63(5), 545-550.


Marechal, J. C., Dewandel, B., Subrahmanyam, K., and Torri, R. (2003), Specific methods for the evaluation of hydraulic properties in fractured hard-rock aquifers, Current Science, 85(4), 511-516.

Maréchal, J. C., Wyns, R., Lachassagne, P., Subrahmanyam, K., and Touchard, F. (2003), Anisotropie verticale de la perméabilité de l'horizon fissuré des aquifères de socle: correspondance avec la structure géologiques des profils d'altération, C.R. Géoscience, 335(5), 451-460.


Marechal, J. C., Sarma, M. P., Ahmed, S., and Lachassagne, P. (2002), Establishment of earth tide effect on water-level fluctuations in an unconfined hard rock aquifer using spectral analysis, Current Science, 83(1), 61-64.