EDP Sciences
Free access
Volume 365, Number 2, January II 2001
Page(s) 324 - 329
Section Instruments, observational techniques and data processing
DOI http://dx.doi.org/10.1051/0004-6361:20000030

A&A 365, 324-329 (2001)
DOI: 10.1051/0004-6361:20000030

The first optical characterization of the Oukaïmeden site with the Generalized Seeing Monitor (GSM)

A. Ziad1 , A. Jabiri2 , Z. Benkhaldoun2 , F. Martin1 , R. Conan1 , M. Lazrek3 and J. Borgnino1 .

1  UMR 6525 Astrophysique, Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France
2  Laboratoire de Physique des Hautes Énergies et Astrophysique, Département de Physique, Université Cadi Ayyad, Faculté des Sciences Semlalia, BP 2390, Marrakech, Morocco
3  Astronomical and Geophysical Laboratory, C.N.C.P.R.S.T., BP 1346 RP, Rabat, Morocco

(Received 31 January 2000 / Accepted 17 October 2000)

The main atmospheric optical parameters (AOP) have been measured during 10 nights in April 1998 with the GSM instrument at the Moroccan site of Oukaïmeden. These parameters are of interest for the optimization of high angular resolution techniques. During this campaign the temporal evolution of the AOP and their distributions have been studied. The outer scale presents a log-normal histogram with a median value of 31 m which is rather similar to the values obtained at other sites visited with GSM. The selection of the Oukaïmeden site is the result of several topographical and meteorological studies on the Atlas mountain chain. Since 1988 this site has been chosen for the installation of one of the IRIS (International Research of the Interior of the Sun) stations. Here, we present the whole AOP data measured with GSM during this campaign. The main photometric and meteorological conditions of this site are also presented.

Key words: atmospheric effects -turbulence -site testing

Offprint request: A. Ziad, ziad@unice.fr

© ESO 2001

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access.

An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account.
    In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.