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CEREGE_ITU

Proposal No: 1
Proposal Name: CEREGE-ITU
Grant: 20760 €


List of Personnel:
Pierre Henry (CEREGE) : 2 weeks at ITU : 14x120€ +800 € = 2480 €
Tiphaine Zitter (CEREGE) : 2 weeks at ITU: 14x120€ +800 € = 2480 €
Namik Cagatay (ITU) :  2 weeks at CEREGE : 14x150 € + 800 € = 2900 €
Umut Baris Ulgen (ITU) : 2 weeks at CEREGE : 14x150 € + 800 € = 2900 €
Devrim Tezcan (ITU) :  4 weeks at CEREGE : 28x150 € + 800 € = 5000 €
Sinan Ozeren (ITU) : 4 weeks at CEREGE : 28x150 € + 800 € = 5000 €


Visits performed:
1. Namık Çağatay’s (ITU, Turkey) visit to CEREGE, CNRS, Aix en provence, France during 6-11 September 2009: The main objective was to study the sedimentary records of fluid and seismic activities in cores recovered from the Sea of Marmara during the Marnaut cruise in 2007.The following scientists took part in the core studies and sampling: Namık Çağatay (ITU), Pierre Henry (CNRS, CEREGE), Tiphaine Zitter ((CNRS, CEREGE), Celine Grall (PhD student, CNRS, CEREGE) and Ioanna Bouloubassi (CNRS, LOCEAN).  Six cores were studied and sampled for various analyses and dating (see the visitor’s report, page 4)
2. Devrim Tezcan’s visit to CEREGE, CNRS, Aix en province, France during 25 September – 25 October 2009: The main objective was to create a GIS database for the Sea of Marmara and transfer the available data obtained during various cruises to the database.. The following scientists took part in the compilation of the data Devrim Tezcan (ITU), Pierre Henry (CNRS, CEREGE), Tiphaine Zitter ((CNRS, CEREGE), Celine Grall (PhD student, CNRS, CEREGE) (see datils in the vistor’s report on page 8).


Planned visits:
:1. Umut B. Ulgen (ITU) will visit CEREGE for 2 weeks during June 2010: He will work on high resolution seismic sections and cores related to deep water sedimentation in the Sea of Marmara, with Tiphaine Zitter, Pierre Henry and Claude Rangin in CEREGE. The aim is to study relations between spatial and temporal changes in the tectonic and sedimentation rates, which are important in understanding the behaviour of the North Anatolian Fault.
2. Sinan Özeren (ITU) will visit  CEREGE for 2 weeks during June 2010. Ozeren’s purpose of stay at CEREGE is principally seismicity and tsunami-related. Ozeren  is now developing a software based on formulating the oscillaton operator (principally a Helmholtz-like operator) in terms of a spectral matrix, the algorithm is based on performing an eigen-decomposition of this operator to calculate the barotropic normal modes of a basin with variable bathymetry.. In CEREGE he will work with  Pierre Henry and Tiphaine Zitter on determining a way to use this approach both to analyze sediment core data and previously obtained seismic cross sections. The second subject Ozeren will  examine with the CEREGE group is a new potential use of OBS for determining the directivity of landslide response.This is  of   practial importance from landslide tsunami generation point of view. New data gathered by Italian researchers shows that the response of a slope to seismic shaking can be characterized by directional variations with mean value of 2-3 of the ratio between maximum and minimum of shaking energy. Ozeren  will examine with CEREGE group whether Horizontal-to-Vertical Noise Ratio obtained from OBS positioned on a slope can be used to obtain such directivity information.



 

  Documents   

ExPerson_CEREGE_ITU_ report