PPP and network true real-time 30 sec estimation of ZTD in dense and giant regional GPS network and the application of ZTD for nowcasting of heavy rainfall

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F06%3A00128995" target="_blank" >RIV/68407700:21110/06:00128995 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

PPP and network true real-time 30 sec estimation of ZTD in dense and giant regional GPS network and the application of ZTD for nowcasting of heavy rainfall

Popis výsledku v původním jazyce

We have developed a true real-time ZTD processing system for GEONET (GPS Earth Observation NET work) in Japan by using both precise point positioning (PPP) and network double-differential processing, where "true" means ZTD product availability within several seconds of GPS observations. The two processing systems are designed for potential users who need true real-time GPS tropospheric products for weather forecasts and nowcasting by monitoring current precipitable water vapor (PWV) for short-term prediction of severe rainfall. The PPP processing system first estimates satellite clocks based on zero-differenced observation in a network processing with 23 stations, and the estimated satellite clocks are used for PPP processing for more than 1,300 stations. The network processing system consists of 61 networks where each network has more than 20 stations and estimates ZTD. Both systems use IGU products and do not depend on other external observations. Four month comparison between GPS PW

Název v anglickém jazyce

PPP and network true real-time 30 sec estimation of ZTD in dense and giant regional GPS network and the application of ZTD for nowcasting of heavy rainfall

Popis výsledku anglicky

We have developed a true real-time ZTD processing system for GEONET (GPS Earth Observation NET work) in Japan by using both precise point positioning (PPP) and network double-differential processing, where "true" means ZTD product availability within several seconds of GPS observations. The two processing systems are designed for potential users who need true real-time GPS tropospheric products for weather forecasts and nowcasting by monitoring current precipitable water vapor (PWV) for short-term prediction of severe rainfall. The PPP processing system first estimates satellite clocks based on zero-differenced observation in a network processing with 23 stations, and the estimated satellite clocks are used for PPP processing for more than 1,300 stations. The network processing system consists of 61 networks where each network has more than 20 stations and estimates ZTD. Both systems use IGU products and do not depend on other external observations. Four month comparison between GPS PW

Druh

D - Stať ve sborníku

CEP obor

DE - Zemský magnetismus, geodesie, geografie

OECD FORD obor

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Projekt

<a href="/cs/project/FT-TA3%2F039" target="_blank" >FT-TA3/039: *Výzkum a vývoj inteligentního autoregulačního řídicího systému OBE GALILEO.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the Institute of Navigation - 19th International Technical Meeting of the Satellite Division, ION GNSS 2006

ISBN

978-1-60423-503-6

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

1902-1909

Název nakladatele

Institute of Navigation

Místo vydání

Washington

Místo konání akce

Fort Worth

Datum konání akce

26. 9. 2006

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000279025902035