Results 11 to 20 of about 680,086 (211)
Multi-GNSS-Weighted Interpolated Tropospheric Delay to Improve Long-Baseline RTK Positioning [PDF]
Sensors, 2022 Jamal Asgari +2 more
exaly +2 more sources
PERFORMANCE OF NUMERICAL WEATHER PRODUCTS FOR INSAR TROPOSPHERIC CORRECTION: A CASE STUDY OF A TROPICAL REGION [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Tropospheric delay variability remains a significant source of error in the InSAR-derived measurements. Numerical weather models have been proposed as an alternative technique to mitigate tropospheric delays in InSAR and have become a standard procedure ...
P. Kirui, P. Kirui, B. Riedel, M. Gerke
doaj +1 more source
Analysis on the performances of the GNSS tropospheric delay correction models [PDF]
E3S Web of Conferences, 2022 Tropospheric delay is one of the important factors affecting GNSS positioning accuracy, and there are different ways to deal with the multiple measurement situations.
Liu Jiaxi, Chang Zhanqiang, Zheng Haoxin
doaj +1 more source
Clouds, photolysis and regional tropospheric ozone budgets. [PDF]
, 2009 We use a three-dimensional chemical transport model to examine the shortwave radiative effects of clouds on the tropospheric ozone budget. In addition to looking at changes in global concentrations as previous studies have done, we examine changes in ...
Wild, Oliver +4 more
core +5 more sources
Regional Tropospheric Correction Model from GNSS–Saastamoinen–GPT2w Data for Zhejiang Province
Atmosphere, 2023 Tropospheric delay models based on GNSS observations are essential for studying tropospheric changes. However, the uneven distribution of GNSS stations reduces the accuracy of GNSS tropospheric delay models in remote areas.
Chaoqian Xu +6 more
doaj +1 more source
Improving the Vertical Modeling of Tropospheric Delay
Geophysical Research Letters, 2022 AbstractAccurate tropospheric delays from Numerical Weather Models (NWM) are an important input to space geodetic techniques, especially for precise real‐time Global Navigation Satellite Systems, which are indispensable to earthquake and tsunami early warning systems as well as weather forecasting.
Wang, Jungang +12 more
openaire +4 more sources
Tropospheric delay in microwave propagation in Nigeria [PDF]
Arabian Journal of Geosciences, 2021 Satellite communication systems suffer from the systematic error of tropospheric delay. Accurate estimation of this delay is essential for communication budget and planning. This study investigates the tropospheric delay in three Nigeria cities: Abuja, Lagos, Port-Harcourt using two different models (Saastominen and Hopfield).
Ogunjo, Samuel +3 more
openaire +2 more sources
Tropospheric Delay Model Based on VMF and ERA5 Reanalysis Data
Applied Sciences, 2023 The global tropospheric zenith delay grid products of VMF1 and VMF3 (Vienna mapping functions) with different resolutions are used to calculate the tropospheric zenith delay of eight IGS (International GNSS Service) stations in China, and the accuracy of
Mengtao Zhang +4 more
doaj +1 more source
ISPRS Open Journal of Photogrammetry and Remote Sensing, 2022 The increased availability of satellite SAR data coupled with improved InSAR processing algorithms has led to higher accuracy of InSAR-derived displacements.
Pius Kipngetich Kirui +2 more
doaj +1 more source
How sensitive is tropospheric oxidation to anthropogenic emissions? [PDF]
, 2008 We use a global chemistry transport model to explore how changes in anthropogenic emissions alter ozone production and tropospheric oxidizing capacity over decadal (1990–2010) and centennial timescales (1900–2100).
Wild, Oliver, Palmer, Paul I.
core +5 more sources