Electronic Charts for Oceangoing Vessels

1993 ◽  
Vol 46 (3) ◽  
pp. 406-411 ◽  
Author(s):  
Colin G. Weeks
Keyword(s):  
Information System ◽  
New Orleans ◽  
Software Package ◽  
Current Data ◽  
Differential Gps ◽  
Data Format ◽  
Blind Navigation ◽  
The Us ◽  
Electronic Chart ◽  
Data Files

It is probable that Congress will require oceangoing ships in US ports to use Differential GPS (DGPS) and electronic charts once DGPS is available on all coasts of the US, which is currently scheduled for completion by the end of 1996. The type of electronic chart currently envisaged, the Electronic Chart Display and Information System (ECDIS) under development by the IMO & IHO, is unsuitable for those ports which are entered through long dredged channels – a category that includes Houston, Gramercy and New Orleans, the three ports which handled the most foreign tonnage in 1991. A different type of electronic chart has been in daily use in such channels, with microwave positioning, since 1984; the combination of DGPS with such a software package has been called an Electronic Navigation System (ENS) and differs from ECDIS in that the ENS is designed to supplement the published chart, not replace it. The paper suggests that the utility of ECDIS would be enhanced if its specifications were modified to allow the entry of the data files used by the ENS, thus giving ECDIS a similar capability for blind navigation in confined waters. Standardization of the current data format would also permit alternative versions of ENS to be developed.

The Coast Guard's Differential GPS Programme

1993 ◽  
Vol 46 (1) ◽  
pp. 78-94 ◽  
Author(s):  
D. H. Alsip ◽  
J. M. Butler ◽  
J. T. Radice
Keyword(s):  
Transportation Policy ◽  
Coast Guard ◽  
Differential Gps ◽  
Accuracy Requirement ◽  
System Service ◽  
The Us ◽  
Electronic Chart ◽  
Accurate Position ◽  
Available Technology ◽  
Navigation Accuracy

The US Coast Guard has a project to provide a differential global positioning system service for harbour and harbour approach (HHA) areas of the coastal United States. The Great Lakes, Puerto Rico and most of Alaska and Hawaii will also be covered by the service. The Coast Guard's DGPS system will fulfil the 8–20 metre navigation accuracy requirement for HHA with an availability of up to 999 percent. The Coast Guard intends to provide this service to the general public and other government agencies, as well as use the system for its own missions. This capability is expected to enhance maritime safety in keeping with the National Transportation Policy by providing an all-weather radionavigation service to supplement existing radar and visual techniques, as well as a highly accurate position sensor for future electronic chart displays. This paper describes the Coast Guard's programme. Background and historical information on the development of pseudorange differential GPS is presented first, followed by a description of currently available technology. Various aspects of the Coast Guard's plan for implementing DGPS are then described, concluding with a rough project time line and a statement concerning Federal DGPS policy.

scholarly journals Peningkatan Pemahaman Para Mualim Terhadap Penggunaan ECDIS Guna Menunjang Keselamatan Pelayaran

2020 ◽  
Vol 2 (1) ◽  
pp. 36-42
Author(s):  
Capt. Mochamad Hermawan ◽  
Mohammad Shohibul Anwar ◽  
Erwin Junius
Keyword(s):  
Information System ◽  
Electronic Chart

Electronic Chart  Display And Information System (ECDIS) adalah suatu alat navigasi berupa peta elektronik sesuai persyaratan peta terbaru konvensi SOLAS 1974 V/20 yang dapat diintegrasikan dengan ala-alat navigasi lainnya sehingga diperoleh posisi dan informasi navigasi lain untuk para mualim melakukan perencanaan pelayaran serta monitoring rute pelayaran. Tujuan dari penelitian ini adalah untuk meningkatkan pengetahuan para Mualim dalam penggunaan ECDIS agar mencapai keselamatan dalam berlayar. Metode yang digunakan dalam penelitian ini adalah metode kualitatif yang mendeskripsikan melalui kata-kata dan bahasa dalam menjelaskan masalah atau fenomena yang  diteliti. Untuk menjabarkan masalah digunakan jenis penelitian deskriptif yaitu dengan mendeskripsikan suatu gejala, peristiwa dan kejadian yang terjadi. Pengumpulan data dilakukan melalui wawancara, dan observasi dalam melakukan penelitian, studi pustaka dan studi dokumentasi. Hasil penelitian ini menunjukkan bahwa para mualim belum maksimal dalam penggunaan ECDIS sehingga diperlukan peningkatan pemahaman dan pengetahuan dalam menggunakan ECDIS agar keselamatan bisa diutamakan saat berlayar.

scholarly journals Quantum GIS (QGIS): An introduction to a free alternative to more costly GIS platforms

EDIS ◽  
2020 ◽  
Vol 2020 (2) ◽  
pp. 7
Author(s):  
Jeffry M. Flenniken ◽  
Steven Stuglik ◽  
Basil V. Iannone
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Spatial Analysis ◽  
Natural Resources ◽  
Software Package ◽  
Forest Resources ◽  
Software Packages ◽  
Land Cover Map ◽  
Gis Software ◽  
Florida Springs

Geographic information system (GIS) software packages can be prohibitively expensive, causing many to shy away from mapping and spatial analysis. This 7-page fact sheet written by Jeffry M. Flenniken, Steven Stuglik, and Basil V. Iannone III and published by the UF/IFAS School of Forest Resources and Conservation introduces the reader to a free GIS software package called Quantum GIS (QGIS), walking the reader through simple GIS processes that can be used to visualize spatial patterns of importance to a variety of fields, including natural resources, agriculture, and urban planning. Learn how to create a land-cover map for a county of interest and create heatmaps that illustrate the density of a given attribute (Florida Springs for this example). This publication will benefit those interested in incorporating GIS into their work but who are unable to afford expensive proprietary GIS software packages, as well as anyone interested in learning a new GIS software package. https://edis.ifas.ufl.edu/fr428

scholarly journals A comprehensive, FAIR file format for neuroanatomical structure modeling

2020 ◽  
Author(s):  
A. E. Sullivan ◽  
S. J. Tappan ◽  
P. J. Angstman ◽  
A. Rodriguez ◽  
G. C. Thomas ◽  
...  
Keyword(s):  
Biological Research ◽  
File Format ◽  
Data Types ◽  
Alternative Analysis ◽  
Data Format ◽  
Digital Reconstruction ◽  
Data Files ◽  
Rich Data ◽  
Scientific Questions ◽  
Neuroscience Community

AbstractWith advances in microscopy and computer science, the technique of digitally reconstructing, modeling, and quantifying microscopic anatomies has become central to many fields of biological research. MBF Bioscience has chosen to openly document their digital reconstruction file format, Neuromorphological File Specification (4.0), available at www.mbfbioscience.com/filespecification (Angstman et al. 2020). One of such technologies, the format created and maintained by MBF Bioscience is broadly utilized by the neuroscience community. The data format’s structure and capabilities have evolved since its inception, with modifications made to keep pace with advancements in microscopy and the scientific questions raised by worldwide experts in the field. More recent modifications to the neuromorphological data format ensure it abides by the Findable, Accessible, Interoperable, and Reusable (FAIR) data standards promoted by the International Neuroinformatics Coordinating Facility (INCF; Wilkinson et al. 2016). The incorporated metadata make it easy to identify and repurpose these data types for downstream application and investigation. This publication describes key elements of the file format and details their relevant structural advantages in an effort to encourage the reuse of these rich data files for alternative analysis or reproduction of derived conclusions.

Modeling-Centered Data Warehousing Learning

2012 ◽  
Vol 3 (4) ◽  
pp. 74-95
Author(s):  
Nenad Jukic ◽  
Boris Jukic
Keyword(s):  
Information System ◽  
Decision Support ◽  
Data Warehouse ◽  
System Architecture ◽  
World Wide ◽  
Data Warehousing ◽  
Business Educators ◽  
Corporate Information System ◽  
The Us ◽  
Corporate Information

Though data warehousing is widely recognized in the industry as the principal decision support system architecture and an integral part of the corporate information system, the majority of academic institutions in the US and world-wide have been slow in developing curriculums that reflect this. The authors examine the issues that have contributed to the lag in the coverage of data warehousing topics at universities and introduce methods, concepts and resources that can enable business educators to deal with these issues and conduct comprehensive, detailed, and meaningful coverage of data warehouse related topics.

scholarly journals Bridge officers’ operational experiences with electronic chart display and information systems on ships

2016 ◽  
Vol 52 (1) ◽  
pp. 49-61 ◽  
Author(s):  
Goran Bakalar ◽  
Myriam Beatriz Baggini
Keyword(s):  
Information System ◽  
System Failures ◽  
Existing Problems ◽  
Starting Point ◽  
Study Results ◽  
Electronic Chart ◽  
Maritime Navigation ◽  
Survey Results ◽  
Good Starting Point ◽  
Taking Action

In this paper, authors suggest an improvement in the electronic chart display and information system handling. Electronic nautical charts provide significant benefits to maritime navigation as a real time navigation system and all updates are important. This paper analyses the electronic chart use experiences on board ships. A questionnaire and survey were used so as to ascertain and corroborate the existing problems with corrections and maintenance of electronic charts on ships, and reliability of the systems was calculated. The survey results have shown that ship’s officers had serious problems with ECDIS systems which were difficult to solve during ship’s operation. A survey was done which showed that a significant percentage of the surveyed bridge officers and captains had problems with ECDIS system operation, such as operation stoppage due to different reasons. They did not always report failures of these systems while having continued to operate ECDIS. The reliability of those systems was also calculated and it resulted 0.916 or 91.6%. Compared to results of previous similar researches done by other scientists, the results of this research show an improvement in the ECDIS handling. It was concluded that a proper action was needed toward finding the solution to the future chart corrections procedure through remote monitoring and maintenance. The study results emphasized that taking action was necessary in the interest of safety protection on ships, with particular attention to be paid to better safety of navigation, of life, and of potential environmental pollution due to this type of information system failures. The results obtained by this study represent a good starting point for future researches in the field.

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