Journal articles
MISOLFA: a generalized monitor for daytime spatio-temporal turbulence characterization
Rabah Ikhlef
1
Thierry Corbard
1
Frédéric Morand
1
Catherine Renaud
1
Maamar Fodil
2
Aziz Ziad
1
Julien Borgnino
1
Mustapha Meftah
3
Pierre Assus
1
Bertrand Chauvineau
1
Alain Hauchecorne
3
Patrick Lesueur
4
Germain Poiet
4
Fabrice Ubaldi
1
Mohammed Hamadouche
5
Toufik Abdelatif
2
Rabah Ikhlef 1
Mail :
Author
Thierry Corbard 1
Mail :
Author IdHAL : thierry-corbard ORCID : https://orcid.org/0000-0002-9615-9619 arXiv : http://arxiv.org/a/corbard_t_1
Frédéric Morand 1
Author
Catherine Renaud 1
Author
Pierre Assus 1
Author
Bertrand Chauvineau 1
Author
Alain Hauchecorne 3
Mail :
Author
Patrick Lesueur 4
Author
Germain Poiet 4
Author
Fabrice Ubaldi 1
Author
Mohammed Hamadouche 5
Author
Toufik Abdelatif 2
Author
1
LAGRANGE - Joseph Louis LAGRANGE (Boulevard de l'Observatoire B.P. 4229 06304 Nice Cedex 04 - France - France)
- UNS - Université Nice Sophia Antipolis (... - 2019) (Parc Valrose - BP 2135 - 06103 Nice cedex 2 - France)
- COMUE UCA - COMUE Université Côte d'Azur (2015 - 2019) (Parc Valrose, 28 avenue Valrose 06108 Nice Cedex 2 - France)
- Observatoire de la Côte d'Azur (France)
- COMUE UCA - COMUE Université Côte d'Azur (2015 - 2019) (Parc Valrose, 28 avenue Valrose 06108 Nice Cedex 2 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7293 (France)
2
CRAAG - Centre de Recherche en Astronomie Astrophysique et Géophysique (Route de l'Observatoire B.P 63 Bouzareah Alger - Algeria)
3
STRATO - LATMOS (France)
- LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales (11 boulevard d'Alembert
Quartier des Garennes
78280 - Guyancourt - France)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines : UMR8190 (55 avenue de Paris - 78035 Versailles cedex - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 : UMR8190 (4 place Jussieu - 75005 Paris - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR8190 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8190 (France)
4
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales (11 boulevard d'Alembert
Quartier des Garennes
78280 - Guyancourt - France)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines : UMR8190 (55 avenue de Paris - 78035 Versailles cedex - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 : UMR8190 (4 place Jussieu - 75005 Paris - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR8190 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8190 (France)
5
Université M'hamed Bougara de Boumerdes, Unité de Recherche Matériaux, Procèdes et Environnement UR- MPE, Algérie - UR- MPE (: FSI, Cité Frantz Fanon, 35000 Boumerdès, Algérie - Algeria)
Abstract : Ground based solar observations are strongly affected by optical turbulence. The concept of a new instrument which allows to measure both spatial and temporal parameters of atmospheric turbulence has been proposed in the late 90s. The instrument MISOLFA (Moniteur d'Images Solaire Franco-Algérien) is based on this concept and has been developped over the past ten years in the framework of a ground-based solar astrometry program and in parallel to the developpement of several night time turbulence monitors at Calern Observatory, south of France. In this paper we first describe its instrumental concept, the technical choices that were made to meet the specifications and discuss the difficulties encountered. Using numerical simulations, we present and test the methods that can be used in order to estimate the turbulence parameters from both MISOLFA image and pupil planes. The effect of finite outer scale on Fried parameter estimation from a simple estimate of the Angle-of-Arrival variance is clearly shown. Finally we present the first results obtained with the instrument fully operating in its two observing planes. We obtained a mean value of Angle-of-Arrival coherence time of 5.3 ms and good agreement is found between spatial parameters obtained with image and pupil planes.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-01275104
Contributor : Catherine Cardon <>
Submitted on : Tuesday, February 16, 2016 - 5:16:48 PM
Last modification on : Tuesday, May 26, 2020 - 6:50:43 PM
Contributor : Catherine Cardon <>
Submitted on : Tuesday, February 16, 2016 - 5:16:48 PM
Last modification on : Tuesday, May 26, 2020 - 6:50:43 PM
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- HAL Id : insu-01275104, version 1
- DOI : 10.1093/mnras/stw242
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INSU | CNRS | UNICE | OCA | UPMC | UVSQ | LATMOS | LAGRANGE | UNIV-PARIS-SACLAY | UNIV-COTEDAZUR | SORBONNE-UNIVERSITE | SU-SCIENCES
Citation
Rabah Ikhlef, Thierry Corbard, Frédéric Morand, Catherine Renaud, Maamar Fodil, et al.. MISOLFA: a generalized monitor for daytime spatio-temporal turbulence characterization. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 458 (1), pp.517-530. ⟨10.1093/mnras/stw242⟩. ⟨insu-01275104⟩
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