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Université de Neuchâtel

Hydrogeological characterization of karst aquifers in Switzerland using a pragmatic approach

Malard, Arnauld ; Jeannin, Pierre-Yves (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Recent studies reveal that karst aquifers represent a significant part of the Swiss groundwater reserve (120 km3) and resource (8.4 km3/year), although they only extend over 20% of the territory. On the one hand, high infiltration rates and large permeabilities of karstified rocks make karst aquifers highly interesting for water management. On the other hand, karst...

Université de Neuchâtel

From Asia to Europe : evaluation of parasitoids for the biological control of the invasive fruit pest "Drosophila suzukii"

Girod, Pierre ; Turlings, Ted (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Agricultural processes are constantly improved to improve crop yields. However, 40% of crop productions are currently lost to pests each year. Insect pests are one of the main factors of these losses and their management is one of the top priorities that researchers are facing worldwide. An important part of these losses are caused by pest with alien origins. Globalization and climate change...

Université de Neuchâtel

Numerical simulations and uncertainty analysis for assessing spatial and temporal dynamics in alluvial river-aquifer systems : an application in the context of the 3rd Rhône River Correction

Gianni, Guillaume ; Brunner, Philip (Dir.) ; Perrochet, Pierre (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

Characterizing river-groundwater interactions in alluvial aquifers is essential when forecasting the impact of river management strategies, such as river restorations, on the overall water resources distribution and dynamics. Therefore, the development of methods and calibration approaches that allow for better identification of the spatial and temporal characteristics of the hydraulic properties...

Bibliothèque d'art et d'archéologie, Genève

One year celebration

Huyghe, Pierre

[Paris] : Onestar Press, 2006

Université de Neuchâtel

Hydraulics and sedimentary processes in the karst aquifer of Milandre (Jura Mountains, Switzerland)

Vuilleumier, Cécile ; Jeannin, Pierre-Yves (Dir.) ; Perrochet, Pierre (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

This thesis aims at characterizing the sedimentary processes taking place in the karst aquifer of Milandre (Switzerland) both by direct observation inside the conduit network and through numerical modeling. A physics based pipe flow model of the downstream part of the karst system is developed on the basis of measurements of hydraulic heads, flow rates and flow velocities performed in the...

Université de Neuchâtel

Recharge quantification and continental freshwater lens dynamics in arid regions : application to the Merti aquifer (eastern Kenya)

Blandenier, Lucien ; Perrochet, Pierre (Dir.) ; Milnes, Ellen (Codir.) ; Brunner, Philip (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2015.

The Dadaab refugee camp, the largest refugee camp in the world with a population of approximately 400’000 persons, is located in the arid to semi-arid eastern Kenya, close to the Somali border. The only permanent water resource for the refugees and the host communities comes from the Merti aquifer which consists in a large continental freshwater lens of 250 km by 50 km surrounded by salty...

Université de Fribourg

Un curieux microfossile de la Molasse oligocène de Suisse occidentale et de Haute-Savoie (France) = An enigmatic microfossil from the Oligocene Molasse deposits of Western Switzerland and Haute-Savoie (France)

Berger, Jean-Pierre ; Collinson, Margaret E. ; Weidmann, Marc

In: Swiss Journal of Geosciences, 2013, vol. 106, no. 2, p. 125–133

A re-analysis and new description of the incertae sedis Calcicarpinum? fallax is presented, and its Late Oligocene age and paleobiogeographical distribution is ascertained. It is identified as a nutlet of a Boraginaceae and is named Boraginocarpus fallax (Taugourdeau-Lantz & Rosset 1966) comb. nov.