MOSE: MOdeling Sites ESO Report Phase B
Date Issued
2015
Author(s)
Description
Meteorological data-set from the Automatic Weather Station (AWS) and mast at Cerro Armazones are from the
Thirty Meter Telescope Site Testing - Public Database Server [28]. Meteorological data-set from the AWS and
mast at Cerro Paranal are from ESO Astronomical Site Monitor (ASM - Doc.N. VLT-MAN-ESO-17440-1773).
We are very grateful to the whole staff of the TMT Site Testing Working Group for providing information about
their data-set, to Marc Sarazin for his constant support to this study and for providing us the ESO data-set used
in this study and to Florian Kerber for his valuable support in accessing at radio-soundings data-set. Radio-
soundings have been launched and reduced by the M.Curé group of the Universidad de Valparaiso in the context
of a study aiming to characterize the Precipitable Water Vapor (PWV) at Cerro Paranal. We acknowledge the
whole ESO Board of MOSE for the useful suggestions and commentaries they kindly provided. Simulations are
run partially on the HPCF cluster of the European Centre for Medium Weather Forecasts (ECMWF) - Project
SPITFOT. This study is co-funded by the ESO contract: E-SOW-ESO-245-0933.
Abstract
The MOSE project (MOdeling ESO Sites) aims at proving the feasibility of the
forecast of (1) all the classical atmospheric parameters (temperature, wind speed
2
intensity and direction, relative humidity) and (2) the optical turbulence OT (CN
profiles) with all the main integrated astro-climatic parameters derived from the
2
CN
i.e. the seeing (ε), the isoplanatic angle (θ0 ), the wavefront coherence time (τ0 )
above the two ESO sites of Cerro Paranal (site of the Very Large Telescope - VLT)
and Cerro Armazones (site selected for the European Extremely Large Telescope -
E-ELT).
For what concerns the atmospheric parameters the study aims at studying the abil-
ity of the model in reconstructing their vertical stratification along the troposphere
and low stratosphere (around 20 km) and their estimation near the ground (the
first 30 m). To constrain and validate the model a different set of measurements
have been used that are provided by different instruments. At Cerro Paranal:
Automatic Weather Station (AWS) [RD1] and radiosoungings [RD2]. At Cerro
Armazones: Automatic Weather Station (AWS) and mast [RD3].
For what concerns the optical turbulence and derived integrated astroclimatic
paramaters measurements from a Generalized Scidar (GS), a Differential Image
Motion Monitor (DIMM) and a MASS (Multi Aperture Scintillation Sensor)
running simultaneously during the PAR2007 Site testing campaign at Cerro
Paranal [RD4] have been used for the model calibration and a preliminary model
validation. Independent measurements from a DIMM and MASS taken routinely
at Cerro Paranal since 19/08/1998a have been used for the final model validation.
In this technical report are summarized the deliverables according to MOSE Project
- Phase B and minutes from review meetings (BSCW archive).
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open.access
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