Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· References in the article
· Citations to the Article (8) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Seeing, outer scale of optical turbulence, and coherence outer scale at different astronomical sites using instruments on meteorological balloons
Authors:
Abahamid, A.; Vernin, J.; Benkhaldoun, Z.; Jabiri, A.; Azouit, M.; Agabi, A.
Affiliation:
AA(Laboratoire de Physique des Hautes Énergies et Astrophysique, Département de Physique, Faculté des Sciences Semlalia, BP 2390, Marrakech, Maroc ), AB(LUAN, UMR 6525, Université de Nice - Sophia Antipolis, 06108 Nice Cedex 2, France), AC(Laboratoire de Physique des Hautes Énergies et Astrophysique, Département de Physique, Faculté des Sciences Semlalia, BP 2390, Marrakech, Maroc), AD(Laboratoire de Physique des Hautes Énergies et Astrophysique, Département de Physique, Faculté des Sciences Semlalia, BP 2390, Marrakech, Maroc), AE(LUAN, UMR 6525, Université de Nice - Sophia Antipolis, 06108 Nice Cedex 2, France), AF(LUAN, UMR 6525, Université de Nice - Sophia Antipolis, 06108 Nice Cedex 2, France)
Publication:
Astronomy and Astrophysics, v.422, p.1123-1127 (2004) (A&A Homepage)
Publication Date:
08/2004
Origin:
A&A
Astronomy Keywords:
turbulence, atmospheric effects, balloons
DOI:
10.1051/0004-6361:20040215
Bibliographic Code:
2004A&A...422.1123A

Abstract

Here we analyze 168 optical turbulence profiles made at nine different locations worldwide by means of free flight balloons equipped with instrumentation. Seeing &varepsilonFWHM, optical turbulence outer scales Lo, and wavefront outer scales \poundso are derived for the different locations and taking into account the contribution of the surface layer [0, 50 m], the boundary layer [0, 1 km] and the free atmosphere [1 km, 30 km]. Noticeable changes are found between the different locations, mainly due to the boundary layer contribution as well as the surface layer contribution. The free atmosphere contribution seems almost the same for each site. There is a very good coherence between the outer scale derived by us and that measured using the Generalized Seeing Monitor (GSM) technique.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints