Evaluation of Water Vapor-Weighted Mean Temperature Models in GNSS Station ACOR

The delay of GNSS signals in the neutral atmosphere allow the determination of atmospheric water vapor. The conversion factor of the delay in the water vapor uses the water vapor-weighted mean temperature, <i>T<sub>m</sub></i>, which is a crucial parameter to improve the qual...

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Main Authors: Raquel Perdiguer-López, José Luis Berné Valero, Natalia Garrido-Villen
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Environmental Sciences Proceedings
Subjects:
Online Access:https://www.mdpi.com/2673-4931/28/1/31
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author Raquel Perdiguer-López
José Luis Berné Valero
Natalia Garrido-Villen
author_facet Raquel Perdiguer-López
José Luis Berné Valero
Natalia Garrido-Villen
author_sort Raquel Perdiguer-López
collection DOAJ
description The delay of GNSS signals in the neutral atmosphere allow the determination of atmospheric water vapor. The conversion factor of the delay in the water vapor uses the water vapor-weighted mean temperature, <i>T<sub>m</sub></i>, which is a crucial parameter to improve the quality of conversion. This study analyzed two different types of models: linear models such as Bevis, Mendes and Ortiz de Galisteo, and empirical models such as GPT2w, GPT3 and GWMT_D. The performance of the models was analyzed using the models as the source of <i>T<sub>m</sub></i> to obtain the precipitable water vapor (PWV), which was compared to a reference set of PWV obtained from a matched radiosonde site. The results show a better performance of the linear models, with the Bevis model achieving the best performance.
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spelling doaj.art-e52eae0653bc40c098a2db2f132441152024-03-27T13:37:47ZengMDPI AGEnvironmental Sciences Proceedings2673-49312024-03-012813110.3390/environsciproc2023028031Evaluation of Water Vapor-Weighted Mean Temperature Models in GNSS Station ACORRaquel Perdiguer-López0José Luis Berné Valero1Natalia Garrido-Villen2Área de Ingeniería Cartográfica, Geodesia y Fotogrametría, Departamento de Explotación y Prospección de Minas, Universidad de Oviedo, 33600 Mieres, SpainDepartamento de Ingeniería Cartográfica, Geodesia y Fotogrametría, Universidad Politècnica de València, 46022 Valencia, SpainDepartamento de Ingeniería Cartográfica, Geodesia y Fotogrametría, Universidad Politècnica de València, 46022 Valencia, SpainThe delay of GNSS signals in the neutral atmosphere allow the determination of atmospheric water vapor. The conversion factor of the delay in the water vapor uses the water vapor-weighted mean temperature, <i>T<sub>m</sub></i>, which is a crucial parameter to improve the quality of conversion. This study analyzed two different types of models: linear models such as Bevis, Mendes and Ortiz de Galisteo, and empirical models such as GPT2w, GPT3 and GWMT_D. The performance of the models was analyzed using the models as the source of <i>T<sub>m</sub></i> to obtain the precipitable water vapor (PWV), which was compared to a reference set of PWV obtained from a matched radiosonde site. The results show a better performance of the linear models, with the Bevis model achieving the best performance.https://www.mdpi.com/2673-4931/28/1/31precipitable water vaporGNSSwater vapor-weighted mean temperature
spellingShingle Raquel Perdiguer-López
José Luis Berné Valero
Natalia Garrido-Villen
Evaluation of Water Vapor-Weighted Mean Temperature Models in GNSS Station ACOR
Environmental Sciences Proceedings
precipitable water vapor
GNSS
water vapor-weighted mean temperature
title Evaluation of Water Vapor-Weighted Mean Temperature Models in GNSS Station ACOR
title_full Evaluation of Water Vapor-Weighted Mean Temperature Models in GNSS Station ACOR
title_fullStr Evaluation of Water Vapor-Weighted Mean Temperature Models in GNSS Station ACOR
title_full_unstemmed Evaluation of Water Vapor-Weighted Mean Temperature Models in GNSS Station ACOR
title_short Evaluation of Water Vapor-Weighted Mean Temperature Models in GNSS Station ACOR
title_sort evaluation of water vapor weighted mean temperature models in gnss station acor
topic precipitable water vapor
GNSS
water vapor-weighted mean temperature
url https://www.mdpi.com/2673-4931/28/1/31
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AT nataliagarridovillen evaluationofwatervaporweightedmeantemperaturemodelsingnssstationacor