000196564 001__ 196564
000196564 003__ CZ-ZdVUG
000196564 005__ 20231120130305.0
000196564 041__ $$aeng
000196564 040__ $$aABC039$$bcze
000196564 1001_ $$aDouša, Jan
000196564 24510 $$aNear real-time ZTD estimates from national GNSS reference networks in support of E-GVAP
000196564 5203_ $$aGlobal Navigation Satellite System (GNSS) proved to be a very useful measurement technique for the troposphere monitoring, in particular for sensing water vapor content in the lower atmosphere. Near-real time tropospheric parameters estimated using GNSS hourly observations and a batch processing method are operationally assimilated into numerical weather forecasts within the EUMETNET EIG GNSS Water Vapor Programme (E-GVAP, https://egvap.dmi.dk). GNSS estimated parameters, namely Zenith Total Delays (ZTD), are provided station by station at a time resolution of 60 minutes and a latency between 30-90 minutes. A regional solution from several permanent newtorks in Czech Republic and Slovakia is performed on an hourly basis and the resulted ZTDs continuously contribute to the E-GVAP being assimilated by several national meteorological agencies. The accuracy of the ZTDs from the near real-time solution can be characterized with the standard deviation of 3-6 mm and systematic errors below 2 mm. Near real-timel ZTD monitoring is available at https://www.pecny.cz/TropNET and at the E-GVAP web page.
000196564 655_4 $$aanotace
000196564 7001_ $$aVáclavovic, Pavel
000196564 7730_ $$92022
000196564 85642 $$ahttps://www.isvavai.cz/riv?s=rozsirene-vyhledavani&ss=detail&n=0&h=RIV%2F00025615%3A_____%2F22%3AN0000023%21RIV23-MSM-00025615
000196564 910__ $$aABC039
000196564 980__ $$aclanky_vugtk
000196564 985__ $$adousa
000196564 985__ $$aanotace (J)
000196564 985__ $$ariv
000196564 985__ $$autvar24
000196564 985__ $$avaclavovic