000196408 001__ 196408
000196408 003__ CZ-ZdVUG
000196408 005__ 20220607110912.0
000196408 041__ $$aeng
000196408 040__ $$aABC039$$bcze
000196408 1001_ $$aDouša, Jan
000196408 24510 $$aEuropean GNSS troposphere monitoring for meteorological applications
000196408 300__ $$a11 stran
000196408 5203_ $$aNear real-time GNSS double-difference network processing is a traditional method still used within the EUMETNET EIG GNSS Water Vapour Programme (E-GVAP) for the atmosphere water vapour content monitoring in support of Numerical Weather Prediction. The standard production relies on estimating zenith tropospheric path delays (ZTDs) for GNSS ground stations with a 1-hour time resolution and a latency of 90 minutes. The Precise Point Positioning (PPP) method in real-time mode has reached the reliability and the accuracy comparable to the near real-time solution. The effectiveness of the PPP method relies on exploiting undifferenced observations from individual receivers, thus optimal use of all tracked systems, observations and signal bands, possible in-situ processing, high temporal resolution of estimated parameters and almost without any latency. The solution may implicitly include horizontal tropospheric gradients and slant tropospheric path delays for enabling the monitoring of a local asymmetry of the troposphere around each individual site. We have been estimating ZTD and gradients in real-time continuously since 2015 with a limited number of stations. Recently, the solution has been extended to a pan-European and global production consisting of approximately 200 stations. The real-time product has been assessed cross-comparing ZTDs and horizontal gradients at 11 collocated stations and by validating real-time ZTDs with respect to the final post-processing products.
000196408 6112_ $$aIOP Conference Series: Earth and Environmental Science; 7th World Multidisciplinary Earth Sciences Symposium, WMESS 2021$$cPraha$$d6.9.2021
000196408 655_4 $$asbornikove prispevky
000196408 7001_ $$aBezděka, Petr
000196408 7001_ $$aVáclavovic, Pavel
000196408 7001_ $$aGuerova, Guergana
000196408 7730_ $$92021$$dIOP Publishing,2021$$x1755-1307
000196408 8564_ $$uhttps://iopscience.iop.org/article/10.1088/1755-1315/906/1/012058
000196408 85642 $$ahttps://www.isvavai.cz/riv?s=rozsirene-vyhledavani&ss=detail&n=0&h=RIV%2F00025615%3A_____%2F21%3AN0000036%21RIV22-MSM-00025615
000196408 910__ $$aABC039
000196408 980__ $$asborniky_konferencni
000196408 985__ $$adousa
000196408 985__ $$abezdeka
000196408 985__ $$ariv
000196408 985__ $$autvar24
000196408 985__ $$avaclavovic