000196021 001__ 196021
000196021 003__ CZ-ZdVUG
000196021 005__ 20201006105636.0
000196021 041__ $$aeng
000196021 040__ $$aABC039$$bcze
000196021 1001_ $$aDouša, Jan
000196021 24510 $$aAdvanced GNSS Processing Techniques (Working Group 1)
000196021 5203_ $$aOver the last decade, near real-time analysis of GPS data has become a well-established atmospheric observing tool, primarily coordinated by the EIG EUMETNET GPS Water Vapour Programme (E-GVAP) in Europe. In the near future, four operational GNSS will be available for commercial and scientific applications with atmospheric science benefiting from new signals from up to 60 satellites observed at any one place and time, however, many challenges remain regarding their optimal combined utilization. Besides raw data streaming, recent availability of precise real-time orbit and clock corrections enable wide utilization of autonomous Precise Point Positioning (PPP), which is particularly efficient for highrate, real-time and multi-GNSS analyses. New GNSS constellation signals, products and processing methods suggest the development of advanced GNSS tropospheric products, in support of weather numerical prediction and nowcasting will be substantially improved. Such examples are: ultra-fast and high-resolution tropospheric products available in real-time or on a sub-hourly basis, parameters monitoring tropospheric anisotropy above the station (such as horizontal gradients and tropospheric slant path delays), and indicators of severe weather such as extreme convection. Development of advanced GNSS tropospheric products within COST Action ES1206 benefited from two dedicated campaigns prepared for a collaborative effort: (1) the benchmark campaign and (2) the real-time demonstration campaign. The former served for estimating and assessing horizontal tropospheric gradients and tropospheric slant delays, estimated from GNSS, Water Vapour Radiometers and Numerical Weather Model (NWM) ray-tracing. The second campaign developed new software and strategies for realtime, multi-GNSS, high-rate tropospheric solutions including the assessment of pre-operational solutions. The impact of selected processing strategies and precise models were assessed during a long-term GNSS reprocessing campaign aimed at providing homogeneous tropospheric products for climate research. Using information from modern NWM forecasting systems, a variety of tropospheric correction models for real-time kinematic GNSS positioning were developed and assessed. Finally, a transfer of knowledge such as support for establishing new GNSS Analysis Centres and inclusion of new networks into E-GVAP were completed.
000196021 6112_ $$aAdvanced Global Navigation Satellite Systems Tropospheric Products for Monitoring Severe Weather Events and Climate$$cEvropa$$d2013
000196021 655_4 $$akonferencni prispevky
000196021 7001_ $$aEliaš, Michal
000196021 7001_ $$aVáclavovic, Pavel
000196021 7730_ $$92019$$dSwitzerland:Springer Nature Switzerland AG,2013.$$gs.33-201$$tAdvanced Global Navigation Satellite Systems Tropospheric Products for Monitoring Severe Weather Events and Climate$$z978-3-030-13900-1
000196021 8564_ $$uhttps://link.springer.com/book/10.1007/978-3-030-13901-8
000196021 85642 $$ahttps://www.rvvi.cz/riv?s=rozsirene-vyhledavani&ss=detail&n=0&h=RIV%2F00025615%3A_____%2F19%3AN0000061%21RIV20-MSM-00025615
000196021 910__ $$aABC039
000196021 980__ $$aclanky_vugtk
000196021 985__ $$adousa
000196021 985__ $$ariv
000196021 985__ $$autvar24
000196021 985__ $$avaclavovic
000196021 985__ $$aelias