Reference : The Status of GNSS Data Processing Systems to Estimate Integrated Water Vapour for Us...
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/10993/16925
The Status of GNSS Data Processing Systems to Estimate Integrated Water Vapour for Use in Numerical Weather Prediction Models
English
Ahmed, Furqan [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Teferle, Felix Norman [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Bingley, Richard [University of Nottingham]
Laurichesse, Denis [Centre National d'Etudes Spatiales, France]
2016
IAG 150 Years Proceedings of the 2013 IAG Scientific Assembly, Postdam,Germany, 1–6 September, 2013
Willis, Pascal
Rizos, Chris
Springer
143
587-593
Yes
No
International
978-3-319-30895-1
International Association of Geodesy Scientific Assembly 2013
01-09-2013 to 06-09-2013
International Association of Geodesy
Potsdam
Germany
[en] Global Navigation Satellite Systems ; Troposphere ; Zenith Total Delay ; Integrated Water Vapour ; Real-Time ; Near Real-Time ; Post Processing ; Numerical Weather Prediction
[en] Modern Numerical Weather Prediction (NWP) models make use of the GNSS-derived Zenith Total Delay (ZTD) or Integrated Water Vapour (IWV) estimates to enhance the quality of their forecasts. Usually, the ZTD is assimilated into the NWP models on 3-hourly to 6-hourly intervals but with the advancement of NWP models towards higher update rates e.g. 1-hourly cycling in the Rapid update Cycle (RUC) NWP, it has become of high interest to estimate ZTD on sub-hourly intervals. In turn, this imposes requirements related to the timeliness and accuracy of the ZTD estimates and has lead to a development of various strategies to process GNSS observations to obtain ZTD with different latencies and accuracies. Using present GNSS products and tools, ZTD can be estimated in realtime (RT), near real-time (NRT) and post-processing (PP) modes. The aim of this study is to provide an overview and accuracy assessment of various RT, NRT, and PP IWV estimation systems and comparing their achieved accuracy with the user requirements for GNSS meteorology. The NRT systems are based on Bernese GPS Software 5.0 and use a double-differencing strategy whereas the PP system is based on the Bernese GNSS Software 5.2 using the precise point positioning (PPP) strategy. The RT systems are based on the BKG Ntrip Client 2.7 and the PPP-Wizard both using PPP. The PPP-Wizard allows integer ambiguity resolution
at a single station and therefore the effect of fixing integer ambiguities on ZTD estimates will also be presented.
COST Action ES1206 ; Fonds National de la Recherche - FnR
Researchers ; Students
http://hdl.handle.net/10993/16925
10.1007/1345_2015_178
http://link.springer.com/chapter/10.1007/1345_2015_178
FnR ; FNR1090247 > Furqan Ahmed > > The Potential of Precipitable Water Vapour Measurements from Global Navigation Satellite Systems in Luxembourg > 01/06/2011 > 31/05/2015 > 2011

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
IAGS_FA.pdfAuthor preprint910.61 kBView/Open

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.