Results 21 to 30 of about 6,471 (208)
GNSS-IR Snow Depth Retrieval from Multi-GNSS and Multi-Frequency Data
Remote Sensing, 2021 Global navigation satellite system interferometric reflectometry (GNSS-IR) represents an extra method to detect snow depth for climate research and water cycle managing. However, using a single frequency of GNSS-IR for snow depth retrieval is often found
Jinsheng Tu +9 more
doaj +1 more source
Estimation and Evaluation of Zenith Tropospheric Delay from Single and Multiple GNSS Observations
Remote Sensing, 2023 Multi-Global Navigation Satellite Systems (multi-GNSS) (including GPS, BDS, Galileo, and GLONASS) provide a significant opportunity for high-quality zenith tropospheric delay estimation and its applications in meteorology.
Sai Xia, Shuanggen Jin, Xuzhan Jin
doaj +1 more source
Sensors, 2023 Relative to single Global Navigation Satellite System (GNSS) measurements, i.e., the measurements from a single GNSS system, a single GNSS code, and a single GNSS receiver, multi-GNSS measurements for time transfer could improve reliability and provide ...
Kun Liang +3 more
doaj +1 more source
Functional traits of riparian trees in the lower Fitzroy River, Western Australia
Ecohydrology, Volume 16, Issue 1, January 2023., 2023 Abstract Riparian trees are critically important for maintaining the ecological function of freshwater ecosystems. Globally, anthropogenic changes to water regimes are impacting the health and distribution of riparian trees. Understanding the physiological constraints on the distribution of riparian tree species in relation to the water regime is ...
Caroline A. Canham +6 more
wiley +1 more source
Topographic thresholds for gully head formation in badlands
Earth Surface Processes and Landforms, Volume 47, Issue 15, Page 3558-3587, December 2022., 2022 Gully topographic threshold model was extended to badlands, on the basis of data collected in the Mediterranean environment in Italy and Spain, characterized by diversified climatic, lithological, geological and anthropogenic settings. Criteria for the attribution of curve number values has been more objectively defined in order to reduce arbitrariness
Mauro Rossi +4 more
wiley +1 more source
Multi-GNSS processing, positioning and applications [PDF]
Journal of Spatial Science, 2020 Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Peter Teunissen +3 more
openaire +3 more sources
Remote Sensing, 2022 Global navigation satellite system (GNSS) differential code bias (DCB) is one of main errors in ionospheric modeling and applications. Accurate estimation of multiple types of GNSS DCBs is important for GNSS positioning, navigation, and timing, as well ...
Qisheng Wang, Shuanggen Jin, Xianfeng Ye
doaj +1 more source
Sensors, 2023 The global navigation satellite system (GNSS) signals are vulnerable to disruption sources, such as signal jamming. This, in turn, can cause severe degradation or discontinuities of the GNSS-based position, navigation, and timing services.
Abdelsatar Elmezayen +3 more
doaj +1 more source
Tropospheric delay parameters from numerical weather models for multi-GNSS precise positioning [PDF]
Atmospheric Measurement Techniques, 2016 The recent dramatic development of multi-GNSS (Global Navigation Satellite System) constellations brings great opportunities and potential for more enhanced precise positioning, navigation, timing, and other applications.
C. Lu +6 more
doaj +1 more source
A prototype for a Multi-GNSS orbit combination
2020 European Navigation Conference (ENC), 2020 Since 1994, the International GNSS Service (IGS) provides a combination of orbit and clock offset products from its different Analysis Centers. These products are used as input by many software for countless scientific and/or operational applications. They can also be used as an independent reference for benchmark experiments.
Pierre Sakic +2 more
openaire +6 more sources