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Integrated precipitable water from GPS observations and cimel sunphotometer measurements at CGO Belsk / Michal Kruczyk in Reports on geodesy and geoinformatics, vol 103 n° 1 (June 2017)  

Public [article]  inReports on geodesy and geoinformatics > vol 103 n° 1 (June 2017) . - pp 46 - 65 Titre : Integrated precipitable water from GPS observations and cimel sunphotometer measurements at CGO Belsk Type de document : Article/Communication Auteurs : Michal Kruczyk, Auteur ; Tomasz Liwosz, Auteur ; Aleksander Pietruczuk, Auteur Année de publication : 2017 Article en page(s) : pp 46 - 65 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] analyse comparative [Termes IGN] données météorologiques [Termes IGN] erreur systématique [Termes IGN] photomètre [Termes IGN] Pologne [Termes IGN] réseau permanent EUREF [Termes IGN] retard troposphérique [Termes IGN] teneur intégrée en vapeur d'eau Résumé : (auteur) This paper describes results of integrated precipitable water co-located measurements from two techniques: GPS solution and CIMEL-318 sunphotometer. Integrated Precipitable Water (IPW) is an important meteorological parameter and is derived from GPS tropospheric solutions for GPS station at Central Geophysical Observatory (CGO), Polish Academy of Sciences (PAS), Belsk and compared with sunphotometer (CIMEL-318 device by Cimel Electronique) data provided by Aerosol Robotic Network (AERONET). Two dedicated and independent GPS solutions: network solution in the sub-network of European Permanent Network (EPN) and precise point positioning solution have been made to obtain tropospheric delays. The quality of dedicated tropospheric solutions has been verified by comparison with EPN tropospheric combined product. Several IPW comparisons and analyses revealed systematic difference between techniques (difference RMS is over 1 mm). IPW bias changes with season: annual close to 1 mm IPW (and semi-annual term also present). IPW bias is a function of atmospheric temperature. Probable cause of this systematic deficiency in solar photometry as IPW retrieval technique is a change of optical filter characteristics in CIMEL. Numéro de notice : A2017-574 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1515/rgg-2017-0005 En ligne : https://doi.org/10.1515/rgg-2017-0005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86699 [article]