Results 71 to 80 of about 1,305 (167)
Journal of Geospatial Information Science and Engineering, 2020 The tropospheric delay is an essential source of error for positioning using the Global Navigation Satellite System (GNSS). Scientific applications of GNSS positioning such as the study of earth crust deformation and earthquake prediction require high ...
Syachrul Arief, Andrea Gatti
doaj +1 more source
14 YEARS OF GPS TROPOSPHERIC DELAYS IN THE FRENCH-ITALIAN BORDER REGION: A DATA BASE FOR METEOROLOGICAL AND CLIMATOLOGICAL ANALYSES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 GPS data from 181 permanent stations extracted from different networks covering France and the Italian part of the Alps are used to estimate a homogeneous set of tropospheric parameters over 14 years (from January 1998 to May 2012).
D. Sguerso, L. Labbouz, A. Walpersdorf
doaj +1 more source
A methodology to compute GPS slant total delays in a numerical weather model [PDF]
, 2012 A numerical algorithm based on Fermat's Principle was developed to simulate the propagation of Global Positioning System (GPS) radio signals in the refractivity field of a numerical weather model.
Bender, Michael +6 more
core +1 more source
Earth and Space Science, Volume 11, Issue 11, November 2024.Abstract In GNSS (Global Navigation Satellite Systems) meteorology, the accuracy of precipitable water vapor (PWV) retrieved from the tropospheric delay of GNSS signals is affected by the conversion factor. Compact VMF1 product (known as GGOS Atmosphere data) provides high‐accuracy global grid‐wise weighted mean temperature (Tm) values, which can be ...
Peng Sun +5 more
wiley +1 more source
Remote SensingGlobal Navigation Satellite System (GNSS) signals experience delays when passing through the atmosphere due to the presence of free electrons in the ionosphere and air density in the non-ionized part of the atmosphere, known as the troposphere.
Paolo Dabove, Milad Bagheri
doaj +1 more source
A new vertical reduction model for enhancing the interpolation accuracy of VMF1/VMF3 tropospheric delay products [PDF]
Geoscientific Model DevelopmentGrid-wise Vienna Mapping Functions 1 (VMF1) and Vienna Mapping Functions 3 (VMF3) tropospheric products are widely used to interpolate the a priori zenith hydrostatic delay (ZHD) and zenith wet delay (ZWD) over GNSS (Global Navigation Satellite Systems ...
P. Sun +8 more
doaj +1 more source
Remote Sensing, 2020 The tropospheric delay and gradients can be estimated using Global Positioning System (GPS) observations after removing the ionospheric delay, which has been widely used for atmospheric studies and forecasting.
Volkan Akgul +3 more
doaj +1 more source
Performance Evaluation of Blind Tropospheric Delay correction Models over Africa [PDF]
, 2015 Tropospheric delay is a major error source in positioning by Global Navigation Satellite Systems (GNSS). Many techniques are available for tropospheric delay mitigation consisting of surface meteorological models and global empirical models.
Botai, Joel +2 more
core +2 more sources
Earth and Space Science, Volume 11, Issue 9, September 2024.Abstract Atmospheric precipitable water vapor (PWV) is a crucial factor affecting precipitation and the atmospheric environment. To quantitatively investigate the spatio‐temporal distribution and characteristics of the PWV in Fujian, China, its diurnal and seasonal variations are analyzed based on the global navigation satellite system (GNSS) data from
Weihua Pan +5 more
wiley +1 more source
Meteorological Applications, 2021 The ability to precisely and accurately model and predict tropospheric delay is essential for precise global navigation satellite system (GNSS) and meteorological applications.
Samuel Osah +3 more
doaj +1 more source