2018
DOI: 10.1186/s40623-018-0824-6
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2D PWV monitoring of a wide and orographically complex area with a low dense GNSS network

Abstract: This study presents an innovative procedure to monitor the precipitable water vapor (PWV) content of a wide and orographically complex area with low-density networks. The procedure, termed G4M (global navigation satellite system, GNSS, for Meteorology), has been developed in a geographic information system (GIS) environment using the free and open source GRASS GIS software (https://grass.osgeo.org). The G4M input data are zenith total delay estimates obtained from GNSS permanent stations network adjustment and… Show more

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Cited by 8 publications
(8 citation statements)
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References 28 publications
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“…Based on this principle, the measurement accuracy can be improved according to the error correlation among baselines in a GNSS baseline network [4], [5]. The network adjustment is a classical technique in GNSS surveying [6] and widely used in practice, e.g., the study of tectonic activity and earthquake hazards [7], the development of online control and alarm system [8], Continuously Operating Reference Stations (CORS) network for modern cities [9], and Precipitable Water Vapor (PWV) monitoring for meterorology [10].…”
Section: Introductionmentioning
confidence: 99%
“…Based on this principle, the measurement accuracy can be improved according to the error correlation among baselines in a GNSS baseline network [4], [5]. The network adjustment is a classical technique in GNSS surveying [6] and widely used in practice, e.g., the study of tectonic activity and earthquake hazards [7], the development of online control and alarm system [8], Continuously Operating Reference Stations (CORS) network for modern cities [9], and Precipitable Water Vapor (PWV) monitoring for meterorology [10].…”
Section: Introductionmentioning
confidence: 99%
“…With the advances in GNSS technology, new research fields such as local-scale water vapor variation associated with deep convection, water vapor monitoring over the ocean, and 3D tomography are beginning to produce results. Ferrando et al (2018) present a procedure, termed G4 M (GNSS for Meteorology), which produces 2D PWV maps with high spatiotemporal resolution based on a simplified mathematical model, PWV variations with respect to a "calm" moment, and heterogeneity index (an indicator of a local severe meteorological event). The G4M maps were compared with meteorological simulations of a severe weather event that occurred in Genoa (Italy).…”
Section: Ground-based Gnss Network and Radio Occultation (Ro)mentioning
confidence: 99%
“…Desde entonces hasta la fecha, se desarrollaron infinidad de investigaciones y aplicaciones en esta área que se encuentra completamente cimentada. Su capacidad operativa y la expansión permanente de las estaciones de monitoreo continuo, la han transformado en una de las técnicas más elegidas para analizar el vapor de agua (Guerova et al, 2019;Ferrando et al, 2018a;Zhao et al, 2018;Wang et al, 2018;Huelsing et al, 2017) Las estimaciones GNSS de IWV , han sido comparadas con valores obtenidos mediante otros dispositivos, como la radiosonda, el radiómetro de vapor de agua, o el LIDAR. La diferencia promedio entre GNSS y las otras técnicas es de unos dos milímetros (Li et al, 2003;Liou et al, 2001;Sakai et al, 2007).…”
Section: Breve Discusión Sobre El Iwv Gnssunclassified
“…Recientemente se ha empezado a investigar en la aplicación definitiva del IWV a partir de GNSS, junto con otros productos derivados de las técnicas de la geodesia espacial, a la detección de patrones que permitan estudiar eventos meteorológicos severos y otros efectos sobre el clima (De Haan et al, 2020;Ferrando et al, 2018b), obteniendo índices que anticipen la intensidad de los mismos y sirvan para mitigar sus efectos. En este trabajo tomaremos parte de lo desarrollado por Manandhar et al (2018) e implementaremos algunos resultados para la obtención de un índice que nos permita conocer la inminencia del evento en cuestión.…”
Section: Observaciones De Iwv Gnss Para El Estudio De Eventos Meteorológicosunclassified