Results 11 to 20 of about 150 (129)
Using GNSS Observations for Tropospheric Delay Prediction Using Artificial Intelligence [PDF]
Port Said Engineering Research Journal, 2023 GNSS technology holds significant importance across wide applications, ranging from mapping, surveying, and precise timekeeping to ship navigation. Its operational principle hinges on the accurate measurement of signal travel time, which is crucial for ...
Ahmed Sedeek
doaj +1 more source
Tropospheric delay efficiency from CSRS-PPP online service for meteorologists in Iran [PDF]
Numerical Methods in Civil Engineering, 2021 Earth’s tropospheric delay is a valuable parameter in meteorological and climatic applications and studies such as short-term weather forecasting, monitoring of severe weather conditions, and long-term climate change.
A. Sam Khaniani, S. Farzaneh
doaj +1 more source
Differences in Phenological Estimation From Multi-Vegetation Indices Across the Yellow River Basin. [PDF]
Ecol EvolThis study evaluated the differential performance of PPI, kNDVI, and EVI in monitoring land surface phenology across the Yellow River Basin. The three vegetation indices showed pronounced divergence in capturing autumn phenological metrics, particularly the downturn date (DD) and recession date (RD).
Yu Q, Bai Y, Wang J.
europepmc +2 more sources
Analysing the Zenith Tropospheric Delay Estimates in On-line Precise Point Positioning (PPP) Services and PPP Software Packages [PDF]
Sensors, 2018 Yu-Ting Tang +2 more
exaly +2 more sources
Remote Sensing, 2021 Accurate tropospheric delay (TD) and weighted mean temperature (Tm) are important for Global Navigation Satellite System (GNSS) positioning and GNSS meteorology.
Liying Cao +6 more
doaj +1 more source
Impact of GPS Zenith Tropospheric Delay data on precipitation forecasts in Mediterranean France and Spain [PDF]
Geophysical Research Letters, 2004 Forecasting precipitation in the western Mediterranean is difficult because of the interactions among dynamical forcing, orographic lifting and moisture advection from the warm Mediterranean Sea. Torrential rainfall events are not uncommon, especially during the autumn.
Vedel, H. +4 more
openaire +3 more sources
Engineering Science and Technology, an International Journal, 2020 Estimation of tropospheric wet delay is of great importance for real-time weather forecasting applications. In the last decade, based on troposphere wet delays obtained from Global Navigation Satellite System observations, high temporal and spatial ...
Mahmut Oguz Selbesoglu
doaj +1 more source
Adaptive neuro fuzzy inference system for predicting sub-daily Zenith Wet Delay
Geodesy and Geodynamics, 2022 In recent years, the focus of tropospheric studies has evolved to GNSS meteorology and weather forecasting. The Zenith Wet Delay (ZWD), which might be assembled to the Integrated Water Vapour (IWV), is an essential component of the tropospheric delay ...
Jareer Mohammed
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
Earth and Space Science, 2020 Tropospheric delay error is independent of the signal's frequency and has strong spatiotemporal variation. It is one of the most severe error sources of satellite navigation and spatial measurement. In view of the limitation of global zenith tropospheric
Peng Chen +3 more
doaj +1 more source