Research on the hydrographic survey cycle for updating navigational charts

Duan, Jing; Wan, Xiaoxia; Luo, Jianan

doi:10.1017/s0373463320000776

Cited by 3 publications

(2 citation statements)

References 6 publications

(5 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A hydrographic survey is a procedure for surveying marine waters and underwater topography to ensure the safety of navigation [1]. It is carried out according to the standards and specifications defined by the International Hydrographic Organization (IHO) [2,3].…”

Section: Introductionmentioning

confidence: 99%

The State of the Hydrographic Survey and Assessment of the Potentially Risky Region for Navigation Safety

Golub Medvešek,

Šoda,

Karin

et al. 2023

JMSE

View full text Add to dashboard Cite

The hydrographic survey is an important technology for improving maritime safety, especially in coastal waters. The accuracy of nautical charts and navigation publications is known to be directly related to hydrographic survey data. Therefore, this paper aims to investigate the status of a hydrographic survey by the International Hydrographic Organization (IHO) regions and identify the potentially risky IHO region for navigation safety. The fundamental step was to obtain the qualitative and quantitative data of the survey. Then, the presented analysis includes investigating the possible relationships between survey status and geographical characteristics by IHO regions. Considering that coastline length and sea surface data have not been calculated by regions, a quantum geographic information system was used to extract data. Using the presented methodology, the case study analyzes the data of stranded ships from 2010 to 2021 by IHO regions, estimates coastline length and sea surface by regions, and establishes the relationships between the coastline length, sea surface, and stranded ships. The results point out the need for improvement in the state of the hydrographic survey in almost all IHO regions and show a correlation between the sea surface and an adequate survey, as well as the coastline length and stranded ships. Hence, this research indicates the possibility of rationalizing the distribution of the IHO region concerning the sea surface and coastline length.

show abstract

Section: Introductionmentioning

confidence: 99%

The State of the Hydrographic Survey and Assessment of the Potentially Risky Region for Navigation Safety

Golub Medvešek,

Šoda,

Karin

et al. 2023

JMSE

View full text Add to dashboard Cite

show abstract

“…The knowledge of the seabed conformation allows not only safe navigation [1], but also the development of new frontiers for other kind of studies such as those on directions and intensity of currents [2], sensitivity of habitats and species [3], [4], and other activities such as maintenance dredging [5], coastal infrastructure protection [6] etc. It is therefore obvious that knowing the seabed and its variability is a fundamental requirement in marine studies.…”

Section: Introductionmentioning

confidence: 99%

From electronic navigational chart data to sea-bottom models: Kriging approaches for the Bay of Pozzuoli

2021

View full text Add to dashboard Cite

<p class="Abstract">Electronic Navigational Charts (ENCs), official databases created by a national hydrographic office and included in Electronic Chart Display and Information System (ECDIS), supply, among essential indications for safe navigation, data about sea-bottom morphology in terms of depth points and isolines. Those data are very useful to build bathymetric 3D models: applying interpolation methods, it is possible to produce a continuous representation of the seafloor for supporting studies concerning different aspects of a marine area, such as directions and intensity of currents, sensitivity of habitats and species, etc. Many interpolation methods are available in literature for bathymetric data modelling: among them kriging ones are extremely performing, but require deep analysis to define input parameters, i.e. semi-variogram models. This paper aims to analyze kriging approaches for depth data concerning the Bay of Pozzuoli. The attention is focused on the role of semi-variogram models for Ordinary and Universal kriging. Depth data included in two ENCs, namely IT400129 and IT400130, are processed using Geostatistical Analyst, an extension of ArcGIS 10.3.1 (ESRI). The results testify the relevance of the choice of the mathematical functions of the semi-variogram: Stable Model supplies, for this case study, the best performance in terms of depth accuracy for both Ordinary and Universal kriging.</p>

show abstract