Matthieu Mercier (matthieu.mercier@ens-lyon.fr)

for the poster entitled:
Hilbert transform applied to internal waves issues
by Mercier, M.

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Matthieu Mercier is a PhD student at the Physics Laboratory of Ecole Normale Supérieure of Lyon (ENS Lyon), France. Supervised by Thierry Dauxois, his research deals with internal waves in stratified fluids and more specifically focuses on the experimental investigation of non-linear structures.

Seong-Joong Kim (seongjkim@kopri.re.kr)

for the poster entitled:
Glacial Ocean Circulation and Property Changes in the North Pacific
by Kim, S.-J.

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Seong-Joong Kim is a research scientist at Korea Polar Research Institute, Incheon, Korea. He earned his Ph.D. His research interest is paleoclimate dynamics to investigate how the earth operated in the past under different climate background. He presented the glacial ocean circulation in the North Pacific, which appears to be markedly enhanced in consistent with paleoclimate proxy evidence.

Julia Pongratz (julia.pongratz@zmaw.de)

for the poster entitled:
Biogeophysical Effects of Anthropogenic Land Cover Change During the Last Millennium
by Pongratz, J.

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Julia Pongratz is working on her PhD at the Max Planck Institute for Meteorology, Hamburg, as member of the International Max Planck Research School on Earth System Modelling. Her research topic, supervised by Christian Reick and Martin Claussen, focuses on the impact of historical land cover change on climate: Did humans alter climate already in pre-industrial times by agricultural activity? To answer this question, Julia reconstructed global land cover for the last millennium. Applying the COSMOS climate model, she now investigates the resulting changes in the energy balance and the carbon cycle.

Theresa Blume (tblume@uni-potsdam.de)

for the poster entitled:
Field observations of persistent preferential flow paths in volcanic ash soils as a result of hydrophobicity
by Blume T.

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Theresa Blume finished her PhD at the Institute for Geoecology, University of Potsdam, Germany in December 2007. The main research objective of her thesis was the investigation of runoff generation processes in a data-scarce catchment in the Chilean Andes, by targeted field campaigns on the one hand and physically based modelling on the other hand. The poster presented at EGU 2008 shows how experimental results from various types of measurements at different temporal and spatial resolution connect to demonstrate the importance of persistent preferential flow paths.

Yongxuan Gao (yongxuan@gmail.com)

for the poster entitled:
Development of Representative Indicators of Hydrological Alteration
by Gao, Y.

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Yongxuan is a PhD student in the Department of Civil and Environmental Engineering at Tufts University, USA. The research presented in the poster is aimed to develop representative hydrologic indicators that best characterize alteration caused by regulation of streamflow in a river to facilitate flow management. Yongxuan’s academic interest is applying integrated water resources management to improve livelihood in developing countries. She is currently conducting her PhD research on environmental flows in the context of small reservoirs in Ghana.

Martijn Westhoff (m.c.westhoff@tudelft.nl)

for the poster entitled:
Temperature observations of shallow subsurface water inflows in a first order stream using Distributed Temperature Sensing
by Westhoff, M.

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Martijn Westhoff is a PhD student at the Water Resources Section, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands. His major research objective is to investigate when connectivity occurs on a hillslope: Which threshold should be passed before connectivity occurs and certain runoff processes become active? He uses Distributed continuous distributed temperature observations as a tracer to address these objectives. The researchmpresented at the EGU 2008 focuses on the interpretation of temporal temperature fluctuations of lateral inflows in a first order stream.

Claudia Cecioni (ccecioni@uniroma3.it)

for the poster entitled:
Full frequency dispersive numerical modelling of tsunamis. Large scale application to the South Tyrrhenian sea
by Cecioni, C.

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Claudia Cecioni is currently a PhD student at the Civil Department of Roma Tre University, in Rome, Italy. The aim of her research, supervised by Ing. G. Bellotti, Prof. L. Franco and Prof. P. De Girolamo, is the numerical modelling of landslide generated waves. The model she has presented at the EGU 2008 conference is very robust and quick to apply at the operational stage of a tsunamis early warning system.

Olha Leontyeva (olyaLeon@isr.lviv.ua)

for the poster entitled:
Analysis of magnetic field polarization parameters before and after Koyna earthquakes
by Leontyeva, O.

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Olha Leontyeva is postgraduate student at the Lviv Centre of Institute of Space Research, Ukraine. She specializes in EM data processing from both ground based and onboard satellite electrical and magnetic sensors for search of the earthquake EM precursors as well as for study of wave processes in ionospere and magnetosphere. At the EGU 2008 she presented the new method for space selection of the eartquake precursor candidate in ULF frequency band.

Dominika Pradzynska (d.m.pradzynska@tudelt.nl)

for the poster entitled:
Spatial and temporal variability of soil moisture patterns related to preferential flow measured using distributed temperature sensing in large scale infiltration experiment
by Pradzynska, D.

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Dominika Pradzynska is currently PhD researcher, within Mountain Risks Marie Curie Research Network, at Delft University of Technology in the Netherlands. Her research focuses on the analyses of short- and long-term behavior of mass movements. The main objective of her research is to improve understanding of the role of the preferential flow in landslide initiation and to include this knowledge in hazard and risk mapping on a large spatial scale. The study presented at EGU 2008 shows the use of temperature as indirect measurement for heterogeneity of soil moisture condition and preferential flow paths.

Fabrizio Romano (fabrizio.romano@ingv.it)

for the poster entitled:
Rupture process of the 25 September 2003 Tokachi-Oki (Hokkaido, Japan) Mw 8.3 earthquake from joint inversion of tsunami waveform and GPS data
by Romano, F.

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Fabrizio Romano is currently a PhD student at the University of Bologna, Italy and carries out his research activity at the Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy. The aim of his research, supervised by Dr. A. Piatanesi, is to study the mechanics of several great tsunamigenic earthquakes using inversion methods and different datasets. Particularly, the studypresented at the EGU 2008 points out the limits of GPS data to resolve completely the slip distribution on the fault and shows that, instead, a joint inversion of tsunami waveform and geodetic data constrains the solution in a much better way.

Elizabeth Petrie (elizabeth.petrie@newcastle.ac.uk)

for the poster entitled:
Sea Level Change using Vertical Land Motion from GNSS: Higher-Order Ionospheric Effects
by Petrie, E.

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Liz is a PhD student in the School of Civil Engineering and Geosciences at Newcastle University, UK. Her research focuses on improving measurements of sea-level change. She is currently using Global Positioning System (GPS) data to determine vertical land movement at tide gauges, and is working on improved GPS time series of station coordinates, particularly investigating the influence of higher-order ionospheric effects. The resulting state-of-the-art GPS time series can be used to correct tide gauge measurements for vertical land motion and produce less biased estimates of sea-level change.

Hao Zuo (haozuo@noc.soton.ac.uk)

for the poster entitled:
An isopycnic model study of the circulation of Sub-Antarctic Mode Water throughout the global ocean
by Zuo, H.

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Hao Zuo is a PhD student in the National Oceanography Centre at Southampton University, UK. My research focuses on Sub-Antarctic Mode Water and Southern Ocean nutrient supply for the Global thermocline by using numerical model. I am currently using A HYbrid Coordinate Ocean general circulation Model (HYCOM) to determine the subduction, ventilation and re-emerence into the mixed layer of the SAMW in the global ocean, as well as their sensitivity to perturbations in mixing parameters. The result shows the relative importance of different driving mechanisms and the importance of SAMW's control in the global nutrient supply.

Christian Möstl (moestlch@stud.uni-graz.at)

for the poster entitled:
Reconstruction of magnetic clouds with two spacecraft: Examples from WIND-ACE and STEREO-WIND
by Möstl, C.

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Christian is a PhD student at the University of Graz and the Space Research Institute of the Austrian Academy of Sciences in Graz, Austria. He is modelling multi-spacecraft observations of "magnetic clouds" in the solar wind. These are large-scale magnetic structures, containing helical field lines winding around a straight axis, much like a spiral staircase or the DNA. They are expelled from the Sun as "coronal mass ejections" and are known to cause the most severe geomagnetic storms. The step from single- to multi-spacecraft observations allows recovering global properties of magnetic clouds with increasing accuracy. Particularly, the application to recent observations by the NASA STEREO mission provide new insights into their shape and structure.

Gabriel Voitcu (gabi@venus.nipne.ro)

for the poster entitled:
Investigation of anisotropic velocity distribution functions using numerical solutions of the stationary Vlasov equation
by Voitcu, G.

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Gabriel Voitcu is currently a PhD student at the Institute for Space Sciences in Bucharest, Romania. His research activity is focused on kinetic theory and test-particle simulations. He is investigating at present the mechanisms responsible for the formation of anisotropic velocity distribution functions as those observed experimentally in the terrestrial magnetosphere, particularly in the tail, close to the plasma sheet. He studied the velocity distribution functions of electron and proton clouds moving in the magnetic field of a tangential discontinuity and found interesting consequences due to finite Larmor radius effects.