Managing Flood Disasters in Nigerian Cities: Issues and Strategies towards Meeting the Challenges in the Modern World.

SUMMARY Floods are among the most devastating natural disasters in the world, claiming more lives and causing more property damage than anyone would imagine. In Nigeria, though not leading in terms...

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Coastal Risk Analysis of the Black Sea under the Sea Level Rise

SUMMARY This study focuses on the Black Sea coast vulnerability. For this purpose, present-day sea level changes in the Black Sea are estimated from satellite altimetry data. The result shows accel...

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Converting Digital Number into Bathymetric Depth: A Case Study over Coastal and Shallow Water of Langkawi Island, Malaysia

SUMMARY Over the years, hydrographic surveyors have used lead lines, sounding pole, wire drag and sounding machine to collect the bathymetry data. To date, the vessel-based echo sounding surveys su...

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On the Development and Implementations of the New Semi-Dynamic Datum for Indonesia

SUMMARY Indonesia is a maritime continent with a complex and active tectonic setting and therefore prone to various natural hazards. The surface deformation caused by these hazards, coupled with te...

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Geodetic Monitoring Cable-Stayed Bridges Using GNSS

SUMMARY Bridges are important transport junctions and play a big role in the socio-economic development of cities and regions. This also applies to cable-stayed bridges, which are designed for a va...

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Analysis of the Spatio-Temporal Variability and Impact of Tropospheric Delay on the Positional Accuracy in GNSS PPP Observations.

SUMMARY As global measurement trend in GNSS positioning begins to shift focus from RTK to PPP (COR Stations being a major application of PPP) investigations into the effect of tropospheric delay on...

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Transmission of Augmentation Corrections Using the Japanese QuasiZenith Satellite System for Real-Time Precise Point Positioning in Australia

SUMMARY A collaborative research project between the Australian Cooperative Research Centre for Spatial Information (CRCSI) and the Japanese Aerospace Exploration Agency (JAXA) aims to assess the f...

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The Impact of an Integrated GPS and GLONASS Satellite Geometry in the Precision of Positioning

SUMMARY The satellite geometry constitutes a major factor in determining the precision of satellite based positioning system. In precise point positioning as well as differential positioning, the nu...

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Analysis and Comparison of GPS/Beidou GNSS Signal Performance

SUMMARY The University of Nottingham Ningbo China (UNNC) has full access to the Beidou system, QZSS, GLONASS, Galileo and GPS on its campus. Currently UNNC has a number of GNSS receivers that can a...

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Jamming and Spoofing of GNSS Signals – An Underestimated Risk?

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