The statistics of atmospheric turbulence at Maunakea measured by RAVEN

Y. H. Ono; Carlos M. Correia; O. Lardière; D. R. Andersen; S. Oya; M. Akiyama; D. Gamroth; K. Jackson; O. Martin; A. Guesalaga; C. Bradley

doi:10.1117/12.2232359

The statistics of atmospheric turbulence at Maunakea measured by RAVEN

Y. H. Ono, Carlos M. Correia, O. Lardière, D. R. Andersen, S. Oya, M. Akiyama, D. Gamroth, K. Jackson, O. Martin, A. Guesalaga, C. Bradley

SCI - Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Citations (Scopus)

Abstract

Prior statistical knowledge of the turbulence such as turbulence strength, layer altitudes and the outer scale is essential for atmospheric tomography in adaptive-optics (AO). These atmospheric parameters can be estimated from measurements of multiple Shack-Hartmann wave-front sensors (SH-WFSs) by the SLOpe Detection And Ranging (SLODAR). In this paper, we present the statistics of the vertical C_N² and the outer scale L₀ at Maunakea in Hawaii estimated from 60 hours telemetry data in total from multiple SH-WFSs of RAVEN, which is an on-sky multi-object AO demonstrator tested on the Subaru telescope. The mean seeing during the RAVEN on-sky observations is 0.475 arcsec, and 55% turbulence is below 1.5 km. The vertical profile of C_N² from the RAVEN SLODAR is consistent with the profiles from CFHT DIMM and MASS, and TMT site characterization.

Original language	English
Title of host publication	Adaptive Optics Systems V
Editors	Enrico Marchetti, Jean-Pierre Veran, Laird M. Close
Publisher	SPIE
ISBN (Electronic)	9781510601970
DOIs	https://doi.org/10.1117/12.2232359
Publication status	Published - 2016
Event	Adaptive Optics Systems V - Edinburgh, United Kingdom Duration: 2016 Jun 26 → 2016 Jul 1

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9909
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Adaptive Optics Systems V
Country/Territory	United Kingdom
City	Edinburgh
Period	16/6/26 → 16/7/1

Keywords

Atmospheric turbulence
RAVEN
SLODAR

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10.1117/12.2232359

Cite this

Ono, Y. H., Correia, C. M., Lardière, O., Andersen, D. R., Oya, S., Akiyama, M., Gamroth, D., Jackson, K., Martin, O., Guesalaga, A., & Bradley, C. (2016). The statistics of atmospheric turbulence at Maunakea measured by RAVEN. In E. Marchetti, J-P. Veran, & L. M. Close (Eds.), Adaptive Optics Systems V Article 99093E (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9909). SPIE. https://doi.org/10.1117/12.2232359

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title = "The statistics of atmospheric turbulence at Maunakea measured by RAVEN",

abstract = "Prior statistical knowledge of the turbulence such as turbulence strength, layer altitudes and the outer scale is essential for atmospheric tomography in adaptive-optics (AO). These atmospheric parameters can be estimated from measurements of multiple Shack-Hartmann wave-front sensors (SH-WFSs) by the SLOpe Detection And Ranging (SLODAR). In this paper, we present the statistics of the vertical CN2 and the outer scale L0 at Maunakea in Hawaii estimated from 60 hours telemetry data in total from multiple SH-WFSs of RAVEN, which is an on-sky multi-object AO demonstrator tested on the Subaru telescope. The mean seeing during the RAVEN on-sky observations is 0.475 arcsec, and 55% turbulence is below 1.5 km. The vertical profile of CN2 from the RAVEN SLODAR is consistent with the profiles from CFHT DIMM and MASS, and TMT site characterization.",

keywords = "Atmospheric turbulence, RAVEN, SLODAR",

author = "Ono, {Y. H.} and Correia, {Carlos M.} and O. Lardi{\`e}re and Andersen, {D. R.} and S. Oya and M. Akiyama and D. Gamroth and K. Jackson and O. Martin and A. Guesalaga and C. Bradley",

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year = "2016",

doi = "10.1117/12.2232359",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

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Ono, YH, Correia, CM, Lardière, O, Andersen, DR, Oya, S, Akiyama, M, Gamroth, D, Jackson, K, Martin, O, Guesalaga, A & Bradley, C 2016, The statistics of atmospheric turbulence at Maunakea measured by RAVEN. in E Marchetti, J-P Veran & LM Close (eds), Adaptive Optics Systems V., 99093E, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9909, SPIE, Adaptive Optics Systems V, Edinburgh, United Kingdom, 16/6/26. https://doi.org/10.1117/12.2232359

The statistics of atmospheric turbulence at Maunakea measured by RAVEN. / Ono, Y. H.; Correia, Carlos M.; Lardière, O. et al.
Adaptive Optics Systems V. ed. / Enrico Marchetti; Jean-Pierre Veran; Laird M. Close. SPIE, 2016. 99093E (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9909).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - The statistics of atmospheric turbulence at Maunakea measured by RAVEN

AU - Ono, Y. H.

AU - Correia, Carlos M.

AU - Lardière, O.

AU - Andersen, D. R.

AU - Oya, S.

AU - Akiyama, M.

AU - Gamroth, D.

AU - Jackson, K.

AU - Martin, O.

AU - Guesalaga, A.

AU - Bradley, C.

PY - 2016

Y1 - 2016

N2 - Prior statistical knowledge of the turbulence such as turbulence strength, layer altitudes and the outer scale is essential for atmospheric tomography in adaptive-optics (AO). These atmospheric parameters can be estimated from measurements of multiple Shack-Hartmann wave-front sensors (SH-WFSs) by the SLOpe Detection And Ranging (SLODAR). In this paper, we present the statistics of the vertical CN2 and the outer scale L0 at Maunakea in Hawaii estimated from 60 hours telemetry data in total from multiple SH-WFSs of RAVEN, which is an on-sky multi-object AO demonstrator tested on the Subaru telescope. The mean seeing during the RAVEN on-sky observations is 0.475 arcsec, and 55% turbulence is below 1.5 km. The vertical profile of CN2 from the RAVEN SLODAR is consistent with the profiles from CFHT DIMM and MASS, and TMT site characterization.

AB - Prior statistical knowledge of the turbulence such as turbulence strength, layer altitudes and the outer scale is essential for atmospheric tomography in adaptive-optics (AO). These atmospheric parameters can be estimated from measurements of multiple Shack-Hartmann wave-front sensors (SH-WFSs) by the SLOpe Detection And Ranging (SLODAR). In this paper, we present the statistics of the vertical CN2 and the outer scale L0 at Maunakea in Hawaii estimated from 60 hours telemetry data in total from multiple SH-WFSs of RAVEN, which is an on-sky multi-object AO demonstrator tested on the Subaru telescope. The mean seeing during the RAVEN on-sky observations is 0.475 arcsec, and 55% turbulence is below 1.5 km. The vertical profile of CN2 from the RAVEN SLODAR is consistent with the profiles from CFHT DIMM and MASS, and TMT site characterization.

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Adaptive Optics Systems V

A2 - Marchetti, Enrico

A2 - Veran, Jean-Pierre

A2 - Close, Laird M.

PB - SPIE

T2 - Adaptive Optics Systems V

Y2 - 26 June 2016 through 1 July 2016

ER -

The statistics of atmospheric turbulence at Maunakea measured by RAVEN

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Keywords

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