Combining Cn2 models to forecast the optical turbulence at Paranal

Autores
Cuevas, Omar; Marín, J. C.; Blazquez, Josefina; Meyer, C.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We applied a combination of models to improve the forecasts of refractive index structure coefficient (⁠⁠) profiles and seeing at Paranal using high-temporal and spatial resolution simulations with the Weather Research and Forecasting model. We assessed our method with Stereo−SCIntillation Detection And Ranging observations from several nights between 2016 and 2018. The combined approach consists of the turbulent kinetic energy-based model to estimate the profile within the boundary layer and another model for the free atmosphere. We tested the Dewan, Jackson−Dewan, and Gladstone models. The implementation of the combined method gives better results than those obtained using each model separately for the whole atmospheric column. However, a much better agreement with observations is obtained when we use a calibration method to improve the results. Calibrated seeing forecasts at Paranal showed a root mean squared error of 0.30 arcsec and a bias around −0.1 arcsec for all the nights of 2017 and 2018, which are similar to previous results obtained at Paranal during the same nights. Due to its performance and rapid execution, the proposed methodology could be implemented as an operational tool to forecast the profiles and the seeing at Paranal and potentially over other astronomical sites around the world.
Fil: Cuevas, Omar. Universidad de Valparaíso; Chile. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Marín, J. C.. Universidad de Valparaíso; Chile
Fil: Blazquez, Josefina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Meyer, C.. Universidad de Valparaíso; Chile
Materia
TURBULENCE
ATMOSPHERIC EFFECTS
SITE TESTING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/235478
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/235478
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Combining Cn2 models to forecast the optical turbulence at ParanalCuevas, OmarMarín, J. C.Blazquez, JosefinaMeyer, C.TURBULENCEATMOSPHERIC EFFECTSSITE TESTINGhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We applied a combination of models to improve the forecasts of refractive index structure coefficient (⁠⁠) profiles and seeing at Paranal using high-temporal and spatial resolution simulations with the Weather Research and Forecasting model. We assessed our method with Stereo−SCIntillation Detection And Ranging observations from several nights between 2016 and 2018. The combined approach consists of the turbulent kinetic energy-based model to estimate the profile within the boundary layer and another model for the free atmosphere. We tested the Dewan, Jackson−Dewan, and Gladstone models. The implementation of the combined method gives better results than those obtained using each model separately for the whole atmospheric column. However, a much better agreement with observations is obtained when we use a calibration method to improve the results. Calibrated seeing forecasts at Paranal showed a root mean squared error of 0.30 arcsec and a bias around −0.1 arcsec for all the nights of 2017 and 2018, which are similar to previous results obtained at Paranal during the same nights. Due to its performance and rapid execution, the proposed methodology could be implemented as an operational tool to forecast the profiles and the seeing at Paranal and potentially over other astronomical sites around the world.Fil: Cuevas, Omar. Universidad de Valparaíso; Chile. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Marín, J. C.. Universidad de Valparaíso; ChileFil: Blazquez, Josefina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Meyer, C.. Universidad de Valparaíso; ChileOxford University Press2024-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/235478Cuevas, Omar; Marín, J. C.; Blazquez, Josefina; Meyer, C. ; Combining Cn2 models to forecast the optical turbulence at Paranal; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 529; 3; 3-2024; 2208-22191365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae630info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:09Zoai:ri.conicet.gov.ar:11336/235478instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:02:09.754CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Combining Cn2 models to forecast the optical turbulence at Paranal
title Combining Cn2 models to forecast the optical turbulence at Paranal
spellingShingle Combining Cn2 models to forecast the optical turbulence at Paranal
Cuevas, Omar
TURBULENCE
ATMOSPHERIC EFFECTS
SITE TESTING
title_short Combining Cn2 models to forecast the optical turbulence at Paranal
title_full Combining Cn2 models to forecast the optical turbulence at Paranal
title_fullStr Combining Cn2 models to forecast the optical turbulence at Paranal
title_full_unstemmed Combining Cn2 models to forecast the optical turbulence at Paranal
title_sort Combining Cn2 models to forecast the optical turbulence at Paranal
dc.creator.none.fl_str_mv Cuevas, Omar
Marín, J. C.
Blazquez, Josefina
Meyer, C.
author Cuevas, Omar
author_facet Cuevas, Omar
Marín, J. C.
Blazquez, Josefina
Meyer, C.
author_role author
author2 Marín, J. C.
Blazquez, Josefina
Meyer, C.
author2_role author
author
author
dc.subject.none.fl_str_mv TURBULENCE
ATMOSPHERIC EFFECTS
SITE TESTING
topic TURBULENCE
ATMOSPHERIC EFFECTS
SITE TESTING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We applied a combination of models to improve the forecasts of refractive index structure coefficient (⁠⁠) profiles and seeing at Paranal using high-temporal and spatial resolution simulations with the Weather Research and Forecasting model. We assessed our method with Stereo−SCIntillation Detection And Ranging observations from several nights between 2016 and 2018. The combined approach consists of the turbulent kinetic energy-based model to estimate the profile within the boundary layer and another model for the free atmosphere. We tested the Dewan, Jackson−Dewan, and Gladstone models. The implementation of the combined method gives better results than those obtained using each model separately for the whole atmospheric column. However, a much better agreement with observations is obtained when we use a calibration method to improve the results. Calibrated seeing forecasts at Paranal showed a root mean squared error of 0.30 arcsec and a bias around −0.1 arcsec for all the nights of 2017 and 2018, which are similar to previous results obtained at Paranal during the same nights. Due to its performance and rapid execution, the proposed methodology could be implemented as an operational tool to forecast the profiles and the seeing at Paranal and potentially over other astronomical sites around the world.
Fil: Cuevas, Omar. Universidad de Valparaíso; Chile. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Marín, J. C.. Universidad de Valparaíso; Chile
Fil: Blazquez, Josefina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Meyer, C.. Universidad de Valparaíso; Chile
description We applied a combination of models to improve the forecasts of refractive index structure coefficient (⁠⁠) profiles and seeing at Paranal using high-temporal and spatial resolution simulations with the Weather Research and Forecasting model. We assessed our method with Stereo−SCIntillation Detection And Ranging observations from several nights between 2016 and 2018. The combined approach consists of the turbulent kinetic energy-based model to estimate the profile within the boundary layer and another model for the free atmosphere. We tested the Dewan, Jackson−Dewan, and Gladstone models. The implementation of the combined method gives better results than those obtained using each model separately for the whole atmospheric column. However, a much better agreement with observations is obtained when we use a calibration method to improve the results. Calibrated seeing forecasts at Paranal showed a root mean squared error of 0.30 arcsec and a bias around −0.1 arcsec for all the nights of 2017 and 2018, which are similar to previous results obtained at Paranal during the same nights. Due to its performance and rapid execution, the proposed methodology could be implemented as an operational tool to forecast the profiles and the seeing at Paranal and potentially over other astronomical sites around the world.
publishDate 2024
dc.date.none.fl_str_mv 2024-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/235478
Cuevas, Omar; Marín, J. C.; Blazquez, Josefina; Meyer, C. ; Combining Cn2 models to forecast the optical turbulence at Paranal; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 529; 3; 3-2024; 2208-2219
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/235478
identifier_str_mv Cuevas, Omar; Marín, J. C.; Blazquez, Josefina; Meyer, C. ; Combining Cn2 models to forecast the optical turbulence at Paranal; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 529; 3; 3-2024; 2208-2219
1365-2966
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae630
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269740581519360
score 13.13397

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