Comparison of precipitable water over Ghana using GPS signals and reanalysis products

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dc.contributor.authorAcheampong, A. A.
dc.contributor.authorFosu, C.
dc.contributor.authorAmekudzi, L. K.
dc.contributor.authorKaas, E.
dc.date.accessioned2019-11-13T10:02:39Z
dc.date.accessioned2023-04-19T01:25:14Z
dc.date.available2019-11-13T10:02:39Z
dc.date.available2023-04-19T01:25:14Z
dc.date.issued2015-11
dc.descriptionAn article published by J. Geod. Sci. 2015; 5:163–170 and available at DOI 10.1515/jogs-2015-0016en_US
dc.description.abstractSignals from Global Navigational Satellite Systems (GNSS) when integrated with surface meteorological parameters can be used to sense atmospheric water vapour. Using gLAB software and employing precise point positioning techniques, zenith troposphere delays (ZTD) for a GPS base station at KNUST, Kumasi have been computed and used to retrieve Precipitable Water (PW). The PW values obtained were compared with products from ERA-Interim and NCEP reanalysis data. The correlation coefcients, r, determined from these comparisons were 0.839 and 0.729 for ERA-interim and NCEP respectively. This study has demonstrated that water vapour can be retrieved with high precision from GNSS signal. Furthermore, a location map have been produced to serve as a guide in adopting and installing GNSS base stations in Ghana to achieve a country wide coverage of GNSS based water vapour monitoringen_US
dc.identifier.citationJ. Geod. Sci. 2015; 5:163–170en_US
dc.identifier.urihttps://ir.knust.edu.gh/handle/123456789/11796
dc.language.isoenen_US
dc.publisherJ. Geod. Sci.en_US
dc.subjectGNSSen_US
dc.subjectintegrated water vapouren_US
dc.subjectnumerical weather predictionen_US
dc.subjectprecipitable wateren_US
dc.subjectreanalysis modeen_US
dc.titleComparison of precipitable water over Ghana using GPS signals and reanalysis productsen_US
dc.typeArticleen_US
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