Towards operational optical turbulence forecast systems at different time scales

Elena Masciadri; Alessio Turchi; Gianluca Martelloni

doi:10.1117/12.2561049

13 December 2020 Towards operational optical turbulence forecast systems at different time scales

Elena Masciadri, Alessio Turchi, Gianluca Martelloni

Proceedings Volume 11448, Adaptive Optics Systems VII; 114481I (2020) https://doi.org/10.1117/12.2561049
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

In this contribution we apply to Paranal a technique successfully tested and implemented in the ALTA Center to support LBT observations permitting us to provide optical turbulence forecasts at time scales of 1 and 2 hours with unprecedent accuracies and with important gain with respect to the forecasts done with simple real-time measurements (method by persistence). We use an autoregressive method that takes into account real-time measurements and forecast performed with a mesoscale atmospherical model. Results obtained so far give an RMSE of 0.1” at 1h for the seeing and a probability to detect the seeing weaker than the first tertile (calculated on climatological scale) equal to 98%. In this study we extend the techniques to other astroclimatic parameters beside the seeing.

Conference Presentation

Citation Download Citation

Elena Masciadri, Alessio Turchi, and Gianluca Martelloni "Towards operational optical turbulence forecast systems at different time scales", Proc. SPIE 11448, Adaptive Optics Systems VII, 114481I (13 December 2020); https://doi.org/10.1117/12.2561049

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available