Name: Jonathan B. Laronne
Status: Professor Emeritus
Email: john@bgu.ac.il​​
Building: Office: Building 72, Room 202
Phone: +972-8-6472016
Mobile: +972-528-795801
Web dept: https://in.bgu.ac.il/en/humsos/geog/pages/staff/john.aspx
Research website: https://in.bgu.ac.il/en/humsos/fluv/Pages/GeoFluv-Home.aspx

Research Interests:
​​​​-   fluvial geomorphology
- sediment transport: Bedload and suspended sediment dynamics
-   bedload monitoring surrogates: seismometers, geophones, and hydrophones
- sediment yield from natural and disturbed landscapes
- flash floods and dryland flood hydrology
- flood water discharge estimation based on radar and large scale particle image
velocimetry -LSPIV​
- water quality​​




    Post-Doctorate Researcher


Name: Suresh Kumar Thappeta

Current Position: Post-doctoral researcher, Ben-Gurion University of the Negev, Israel.

Current Research Work: Analysis of turbulence characteristics and bedload in flash flood bores


  • Ph.D. Hydraulic and Water Resources Engineering, Indian Institute of Technology Madras, India, 2019.
  • M.Tech. Water Resources Engineering and Management, Indian Institute of Technology Guwahati, India, 2012.
  • B.Tech. Civil Engineering, SV University, Tirupathi, India, 2009.

Professional Experience:

Post-doctoral Researcher:  ICWaR, Indian Institute of Science, Bangalore, India, 2019.

Research Interests:

  • Experimental Hydraulics
  • Computational Fluid Dynamics
  • Field Studies in Mountain Streams​

Current Graduate Students

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Name: Kyle Stark​
Degrees: B.Sc. Geology, College of William and Mary
Phone: (+01) 540 333 4874
Research Interest:
My main focus is bedload and suspended sediment transport in desert ephemeral streams of New Mexico, USA. Desert ephemeral streams are unique because of the flashy nature of flooding and high bed and suspended loads compared to other rivers worldwide. They are flood-driven and only flow after the occurrence of high intensity rainfall. Because of their variability, it is difficult to accurately measure the discharge of sediment. I use a variety of instruments, including acoustic hydrophones, seismometers and slot samplers for bedload, turbidity for suspended concentration, 3-D ECM and ADV for turbulence as well as SVR and LSPIV for velocimetry and other remote sampling equipment to measure these highly unpredictable flows.

Name: Ron Nativ
Degrees: B.Sc.  Earth & Environmental Sciences, BGU 

M.Sc. Earth & Environmental Sciences, BGU. 

Thesis Title:

My PhD is jointly undertaken at BGU and the University of Potsdam co-supervised by Niels Hovius, Jens Turowski and Liran Goren.

Niels HoviusJens TurowskiLiran Goren​ 

Research interest:

I am interested in fluvial processes that shape the morphology of bedrock rivers in mountainous, climate- and tectonically-driven landscapes. Particularly, I use laboratory experiments, theoretical models, high-resolution topographic data and environmental seismology to study the role of extremely large boulders on channel geometry and on bedload flux in bedrock canyons in the Liwu River, Taiwan. I am also interested in fluvial incision and in a recent project we examined the source and mechanism for the 'Sadler effect' - the phenomenon describing the fact that bedrock incision rates typically scale negatively with the time scale of the measurement. 

Name: Noami Kahane

Degrees: B.Civ. Eng. Water Technion, Israel Institute of Technology

Co-advisor: Liran Goren  

Research interest:

Dead Sea water is supplied by a canal to the Dead Sea Works evaporation ponds located in the southern Dead Sea. As a result of the continuous Dead Sea level decline, a new pumping station (P9) was constructed at the northern edge of the Ze'elim alluvial fan. Seven spillway bridges were constructed over the canal to allow flood waters to cross it toward the Dead Sea, thereby allowing continued ecological and physical activities in the fan.

My research examines the response of the braided Ze'elim pattern upstream of the canal and the extent of its incision below the spillway bridges constructed over the canal on development of the alluvial fan. Additionally, it specifically aims to build a monitoring and maintenance program for the canal and the spillway bridges.


Name:  Eran Halfi
Status:  M.Sc. student in Environmental Engineering with  thesis (interdisciplinary research with Dept.Geogr. & Environ. Development)​
Advisors:  Prof. Jonathan Laronne, Prof. David Katoshevski
Email:​ eranhalfi@gmail.com​ 
Office:    +972-8-6428400
Mobil phone:   +972-50-4211418



Name: Gefen Lemel
Status: M.Sc. student 
Degrees: B.A Physical Geography, Ben Gurion University of  the Negev
Email: lemelg@post.bgu.ac.il
Phone: 972-52-3136205

Areas of interest and research:

My interests are the integration of the human field with the natural environment.  I am interested in proper and sustainable planning and development, which is based on physical characteristics such as soil, hydrology and climate.

My master's thesis deals with the rehabilitation of damaged areas and their comparison to natural areas, using a hydrogeomorphological approach. The objective of this study is to improve the results of the rehabilitation process for the affected areas in the future.

Research - Zin:

 ​Research topic:

An examination of the factors that affect the stability of natural and rehabilitated slopes in the Zin phosphate mine as a background for optimal rehabilitation (Research done by Gefen Lemel co-supervised by Jonathan Laronne and Eli Argaman).

Research Area:

Northeast Negev, Zin Valley Extreme arid climatic zone. In the area of the phosphate field Zin.

The purpose of the study:

The aim of this study is to recommend how to reduce erosion from reclaimed slopes with a hydrogeomorphological approach -  a method used in mines in desert areas in the southwestern United States and Australia. Such a recommendation depends first and foremost on understanding the hydro geomorphic response of present rehabilitated slopes compared to the natural ones adjacent to the mining area. Two main methods, Structure-from-Motion (SfM) for measurement of gully-erosion and runoff plots for the examination of the amount of sediment discharged during natural rain events.​

NameMatanya Hamawi 

Co-advisors: Susan Bilek, Jens Turowski and Liran Goren​

Research interest:

My study is directed to bedload transport in floods of ephemeral streams located in the semi-arid Northern Negev, Israel. The main theme is documentation and deciphering the spatial and temporal variations of bedload flux through a drainage area. This will include an attempt to differentiate the seismic response of bedload in a semi alluvial and a nearby bedrock reach. We record seismic activity, including that generated by bedload impact at five stations in three streams in the Nahal Beer Sheva Basin. My study is undertaken in collaboration with a research group performing a similar study in the more sandy Arroyo de los Pinos New Mexico and with Florent Gilbert.

Technical Staff
Lab Technician:

Name: Yehoshua Ratzon

Status: Lab Technician

Office: Building 72, room 238

Phone: +972-8-6472026

Email: ratzony@bgu.ac.il​


Name: Oron Moshe Guy
Status: IT Technician
Office: Building 72, room 252
Phone: +972-8-6472014


Research Assistants (undergraduate Students):

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Name: Naama Weisman
Status: Research Assistant
Degree: Bachelor student, 3rd year, Geography, BGU ​
Email: naamaw15@gmail.com
Phone: 972-52-6450390​


Name: Liron Danaa
Status: Research Assistant
Degree: Bachelor student, 2nd year, Geology and                               Geography, BGU
Email: lirondanaa@gmail.com
Phone: 972-58-6655114

Name: Chaya Sud
Status: Research Assistant
Degree: Bachelor student, 2nd year, Geography, BGU
Email: chayasud@gmail.com
Phone: 972-50-8371174