Results 11 to 20 of about 421 (151)
Kinematic Zenith Tropospheric Delay Estimation with GNSS PPP in Mountainous Areas [PDF]
Sensors, 2021 The use of global navigation satellite systems (GNSS) precise point positioning (PPP) to estimate zenith tropospheric delay (ZTD) profiles in kinematic vehicular mode in mountainous areas is investigated.
Paul Gratton +3 more
doaj +2 more sources
Journal of Fisheries & Livestock Production, 2016 The study was aimed to analyze low salinity white shrimp (Litopenaeus vannamei Boone) production feasibility using zero water discharge (ZWD) system. The research was conducted through five constitutive steps: (1) ZWD system installation and white shrimp post-larvae acclimatization to low salinity water (5 ppt), (2) White shrimp cultivation using low ...
Muhammad H, Situmorang ML, Djohan YA
exaly +2 more sources
AtmosphereThis study addresses the stratified and turbulent tropospheric delays that impede interferometric synthetic aperture radar (InSAR) deformation monitoring in alpine canyon regions.
Jihong Zhang +4 more
doaj +2 more sources
Journal of Traditional Chinese Medical Sciences, 2023 Objective: To explore the kidney yang deficiency pattern (KYDP) in a chronic kidney disease (CKD) rat model and the mechanisms underlying the effects of Zhenwu decoction (ZWD) by conducting transcriptomic and metabolomic analyses.
Pengfei Zheng +7 more
doaj +1 more source
An empirical zenith wet delay correction model using piecewise height functions [PDF]
Annales Geophysicae, 2018 Tropospheric delay is an important error source in space geodetic techniques. The temporal and spatial variations of the zenith wet delay (ZWD) are very large and thus limit the accuracy of tropospheric delay modelling.
Y. Yao, Y. Yao, Y. Yao, Y. Hu, Y. Hu
doaj +1 more source
Geoid, 2021 Global Navigation Satellite System (GNSS) semakin dikembangkan sebagai sistem penginderaan jauh atmosfer, salah satunya melalui perhitungan Zenith Tropospheric Delay (ZTD).
Norma Aji Cemara Mannani +1 more
doaj +1 more source
Detection of Alpine Foehn in GNSS-ZWD time series: An innovative application of GNSS Meteorology [PDF]
, 2021 <p>The atmospheric delay experienced by a signal of the Global Navigation Satellite System (GNSS) is proportional to the water vapour content along the signal path. This fact is typically exploited in GNSS Meteorology by introducing GNSS derived atmospheric parameters like the Zenith Wet Delay (ZWD) in data assimilation schemes.
Matthias Aichinger-Rosenberger +2 more
openaire +2 more sources
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 A new concept is proposed for estimating the zenith wet delay (ZWD) and atmospheric weighted average temperature by inputting the temperature, total pressure, and specific humidity from surface weather data.
Pengfei Xia +3 more
doaj +1 more source
Machine Learning-Based Calibrated Model for Forecast Vienna Mapping Function 3 Zenith Wet Delay
Remote Sensing, 2023 An accurate estimation of zenith wet delay (ZWD) is crucial for global navigation satellite system (GNSS) positioning and GNSS-based precipitable water vapor (PWV) inversion. The forecast Vienna Mapping Function 3 (VMF3-FC) is a forecast product provided
Feijuan Li +5 more
doaj +1 more source