000193071 001__ 193071
000193071 003__ CZ-ZdVUG
000193071 005__ 20190204102454.0
000193071 044__ $$axxu
000193071 041__ $$aeng
000193071 040__ $$aABC039$$bcze
000193071 1001_ $$aDouša, Jan
000193071 24510 $$aHigh accuracy tropospheric delay determination based on improved modelling and high resolution Numerical Weather Model
000193071 300__ $$a11 stran
000193071 5203_ $$9eng$$aIn general the assessment of the zenith wet delay (ZWD), which is part of the total zenith tropospheric delay (ZTD), is quite difficult, not only due to limited knowledge of the atmospheric water vapor distribution, but also because of the irregular pattern of the water vapor vertical profile. This problem can be solved adopting a new concept of calculating ZWD, in which the decay rate of the ZWD with height is used instead of the water vapor decay rate. This new decay rate parameter can considerably improve estimation of the ZWD vertical delay. This new approach is used to improve both the ZTD climatological 'blind' model', currently adopted by aeronautical standards, and the 'augmented' ZTD models based on actual weather-conditions. Based on 12 years of the world wide ERA-Interim numerical weather model (NWM) data, an improved climatologic model is developed. Using two years of the high accuracy, state-of-the-art Harmonie high resolution NWM in the Netherlands region, it is demonstrated that near-real-time tropospheric delay estimates can be obtained at mm accuracy level and that the estimates are accurately scalable with height, based on the combination of the high resolution NWM and improved tropospheric delay modelling. This result may be beneficial both for precise point positioning applications and high accuracy, high integrity navigation.
000193071 655_4 $$aanotace
000193071 655_4 $$akonference
000193071 7001_ $$aEliaš, Michal
000193071 7001_ $$aVeerman, Henk
000193071 7001_ $$avan Leeuwen, Sam Storm
000193071 7001_ $$aZelle, Hein
000193071 7001_ $$ade Haan, Siebren
000193071 7001_ $$aMartellucci, Antonio
000193071 7001_ $$aPerez, Raul Orus
000193071 7112_ $$a28th International Technical Meeting of The Satellite-Division-of-the-Institute-of-Navigation (ION GNSS+)$$cTampa, FL$$dSEP 14-18, 2015
000193071 7730_ $$92015$$gpages 3734-3744$$tPROCEEDINGS OF THE 28TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION (ION GNSS+ 2015) / Washington, INST NAVIGATION, 2015
000193071 85642 $$uhttps://www.rvvi.cz/riv?s=rozsirene-vyhledavani&ss=detail&n=0&h=RIV%2F00025615%3A_____%2F15%3A%230002212%21RIV16-GA0-00025615
000193071 943__ $$anemáme
000193071 980__ $$aclanky_vugtk
000193071 985__ $$adousa
000193071 985__ $$aanotace
000193071 985__ $$aelias
000193071 985__ $$autvar24