The Key of Maritime Decisions Making
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
REPORT on the CONDUCT of the 2021 WORLD HYDROGRAPHY DAY CELEBRATION in NIGERIA-1.Pdf
Advancements and the Future Outlook of Charting the Nigerian Navigation Channel Chukwuemeka C. Onyebuchi1, Franklin E. Onyeagoro2 and Peter O. Aimah3 1Polaris Integrated and Geosolutions Limited, [email protected] 2Federal University of Technology Owerri, [email protected] 3Polaris Integrated and Geosolutions Limited, [email protected] ABSTRACT The need for achieving safe waterways for navigation, engineering, exploration, security and other marine operations cannot be overemphasized and should be attained using precise methods and equipment. The Hydrographic process still remains the only systematic means through which spatial information about our marine environment (oceans, seas, rivers etc.) are acquired for charting purposes so as to aid analysis and decision making. In Nigeria today, most marine operations and mostly the Nigerian Navy is dependent on the Hydrographic process for smooth operations required for security, trading, engineering etc. therefore maintaining the integrity of the hydrographic process is of uttermost importance. To maintain the integrity of the hydrographic process used for charting our navigational channels, the progressive evolution of this process shall be assessed: from the earliest methods that directly sounded navigational channels using weighted lead lines and graduated poles to provide water depths to Wire Drag methods used to identify physical features on the marine environment, then to the 1930s when acoustic waves were applied in the Echo Sounder to indirectly ascertain seabed profile, and the use of instruments like Multi Beam Echo Sounders, Magnetometer, Side Scan Sonar, etc. for detailed Bathymetric and Geophysical Survey Projects, and presently to the use of Remotely Operated Vehicles (ROV) and satellites in space to monitor sea level rise. -
Challenge Your Adrenaline by Taking One of These Volcano Indonesia Tours
Challenge Your Adrenaline by Taking One of These Volcano Indonesia Tours As an archipelago, Indonesia lays on the meeting of several tectonic plates. Geologically, it is the reason why Indonesia has many volcanoes stretched from the West to the East. Though it sounds worrying to remember how dangerous a volcano can be, the area can be the perfect place to explore instead. Volcanoes are known for its fertile land and scenic view. Apparently, volcano Indonesia tour can be found across the country and below are six of the best destinations. 1. Mount Rinjani, Lombok Lombok Island on the Eastern Indonesia has the magnificent Mount Rinjani and its craters. This active volcano has three craters from its past eruption called the Kelimutu Lake. Mount Rinjani is the second highest volcano in Indonesia after Mount Kerinci in Sumatera. The lake has a magical view because each crater has different colors throughout the day. From afar, each of the craters would be seen to have green, blue, and red color. The local people have their own legend of the color of the craters. However, the color change might potentially be the result of the change in oxidation and reduction of the fluid in the craters. It may take around two days and one night to climb the mountain seriously and professionally. However, there are Indonesia tour packages that will offer an easier hiking option for beginners. 2. Mount Batur, Bali Mount Batur in Bali might be the easiest volcano to climb in the Indonesia tour list. In just less than three hours, you can get to the top of this active volcano. -
Chapter 5 Water Levels and Flow
253 CHAPTER 5 WATER LEVELS AND FLOW 1. INTRODUCTION The purpose of this chapter is to provide the hydrographer and technical reader the fundamental information required to understand and apply water levels, derived water level products and datums, and water currents to carry out field operations in support of hydrographic surveying and mapping activities. The hydrographer is concerned not only with the elevation of the sea surface, which is affected significantly by tides, but also with the elevation of lake and river surfaces, where tidal phenomena may have little effect. The term ‘tide’ is traditionally accepted and widely used by hydrographers in connection with the instrumentation used to measure the elevation of the water surface, though the term ‘water level’ would be more technically correct. The term ‘current’ similarly is accepted in many areas in connection with tidal currents; however water currents are greatly affected by much more than the tide producing forces. The term ‘flow’ is often used instead of currents. Tidal forces play such a significant role in completing most hydrographic surveys that tide producing forces and fundamental tidal variations are only described in general with appropriate technical references in this chapter. It is important for the hydrographer to understand why tide, water level and water current characteristics vary both over time and spatially so that they are taken fully into account for survey planning and operations which will lead to successful production of accurate surveys and charts. Because procedures and approaches to measuring and applying water levels, tides and currents vary depending upon the country, this chapter covers general principles using documented examples as appropriate for illustration. -
Depth Measuring Techniques
EM 1110-2-1003 1 Jan 02 Chapter 9 Single Beam Acoustic Depth Measurement Techniques 9-1. General Scope and Applications Single beam acoustic depth sounding is by far the most widely used depth measurement technique in USACE for surveying river and harbor navigation projects. Acoustic depth sounding was first used in the Corps back in the 1930s but did not replace reliance on lead line depth measurement until the 1950s or 1960s. A variety of acoustic depth systems are used throughout the Corps, depending on project conditions and depths. These include single beam transducer systems, multiple transducer channel sweep systems, and multibeam sweep systems. Although multibeam systems are increasingly being used for surveys of deep-draft projects, single beam systems are still used by the vast majority of districts. This chapter covers the principles of acoustic depth measurement for traditional vertically mounted, single beam systems. Many of these principles are also applicable to multiple transducer sweep systems and multibeam systems. This chapter especially focuses on the critical calibrations required to maintain quality control in single beam echo sounding equipment. These criteria are summarized in Table 9-6 at the end of this chapter. 9-2. Principles of Acoustic Depth Measurement Reference water surface Transducer Outgoing signal VVeeloclocityty Transmitted and returned acoustic pulse Time Velocity X Time Draft d M e a s ure 2d depth is function of: Indexndex D • pulse travel time (t) • pulse velocity in water (v) D = 1/2 * v * t Reflected signal Figure 9-1. Acoustic depth measurement 9-1 EM 1110-2-1003 1 Jan 02 a. -
Plagiarism Checker X Originality Report
Plagiarism Checking Result for your Document Page 1 of 7 Plagiarism Checker X Originality Report Plagiarism Quantity: 16% Duplicate Sources found: Date Tuesday, March 03, 2020 Click on the highlighted sentence to see sources. Words 511 Plagiarized Words / Total 3219 Words Sources More than 32 Sources Identified. Internet Pages Low Plagiarism Detected - Your Document needs Optional Remarks <1% https://anakmadiun.wordpress.com/2011/06 Improvement. <1% https://id.wikipedia.org/wiki/Anak_Kraka <1% https://www.cendananews.com/2019/01/letu KAJIAN DAERAH RENDAMAN TSUNAMI DI PESISIR TELUK LAMPUNG AKIBAT PERUBAHAN <1% https://www.liputan6.com/news/read/38554 TOPOGRAFI GUNUNG ANAK KRAKATAU DI TAHUN 2018 Abstrak Akibat erupsi Gunung Anak Krakatau <1% https://www.geologinesia.com/2019/05/ (GAK) pada bulan Desember 2018 menyebabkan sebagian tubuh GAK longsor ke dalam laut dan <1% https://laporanpraktikumbersama.blogspot mengakibatkan tsunami. Longsoran ini juga menyebabkan perubahan topografi GAK. Jika terjadi pengulangan bencana dengan kondisi topografi GAK saat ini, tentunya akan menyebabkan perubahan tinggi 2% https://indonesia.go.id/ragam/pariwisata gelombang tsunami di bibir pantai yang akan mempengaruhi perubahan daerah rendaman tsunami. Karena 1% https://id.wikipedia.org/wiki/Teluk_Lamp letak wilayah pesisir Teluk Lampung yang cukup dekat dengan GAK menyebabkan wilayah pesisir Teluk 2% https://id.scribd.com/doc/211571215/Bab- Lampung rentan terkena bencana tsunami. 1% http://digilib.unila.ac.id/6012/15/BAB%2 Sehingga perlu dikaji daerah rendaman tsunami akibat perubahan topografi GAK saat ini di wilayah pesisir 2% https://rhyputri.blogspot.com/2014/08/ar Teluk Lampung. Kajian ini dilakukan dengan menggunakan metode non numerik untuk mendapatkan tinggi <1% https://eprints.uns.ac.id/1528/1/102-382 gelombang di bibir pantai dan metode Berryman untuk mendapatkan daerah rendaman tsunami di wilayah <1% https://hadimarine.blogspot.com/2011/01/ pesisir Teluk Lampung dengan membuat tiga skenario. -
Print Cruise Information
Discovering the islands of South-East Asia From 9/11/2022 From Ho Chi Minh City (Saigon) Ship: LE LAPEROUSE to 23/11/2022 to Benoa, Bali Set out to discover rich cultures, between tradition and modernity, during a 15-day cruise in the South-East Asian islands aboard Le Lapérouse. An original PONANT itinerary that will take you from Vietnam to Indonesia via Singapore. You will set sail from Ho Chi Minh City. Founded in the 17th century, this city formerly known as Saigon sits right near the Mekong Delta, a mythical river on which small, colourful boats throng on market days. Le Lapérouse will then chart a course south towards the Côn Dao Islands, in the China Sea. This preserved archipelago, where picturesque fishing villages overlook a crystal sea, will delight you with its wild beauty as well as its rich history. In Singapore, city-State on the edges of the Orient, you will be seduced by the unique multicultural atmosphere of this “garden city”, home to wonderful botanical tropical gardens, UNESCO World Heritage Sites. Between the islands of Java and Sumatra, you’ll have the privilege of admiring the caldera of Anak Krakatoa in the Sunda Strait. It is the result of the legendary eruption of the eponymous volcano, which destroyed the old island in 1883. During your stopover in Semarang, you will visit the incredible Borobudur site. Listed as a UNESCO Word Heritage site, this monumental Buddhist temple compounds from the 8th and 9th centuries is home to some 240 temples. Between the Pacific and Indian Oceans, the idyllic archipelago of Karimun Jawa will reveal its magnificent immaculate white sand beaches bordered by limpid turquoise waters and the beauty of its colourful coral reefs. -
Guidance on the Use of ADMIRALTY Digital Publications (ADP) and ADMIRALTY E-Nautical Publications (E-Nps)
FAQs Guidance on the Use of ADMIRALTY Digital Publications (ADP) and ADMIRALTY e-Nautical Publications (e-NPs) The UKHO produces two types of digitised 2. Products issued by the United Kingdom nautical publications Hydrographic Office (UKHO) • ADP includes ADMIRALTY TotalTide (ATT), ADMIRALTY Digital List of Lights (ADLL) and 2.1. The UKHO issues nautical charts and publications ADMIRALTY Digital List of Radio Signals (ADRS). conforming to the definition set out at paragraph 1.1 above. These charts and publications are designed • ADMIRALTY e-NPs include electronic versions to meet the requirements of marine navigation and of Sailing Directions and other reference nautical to satisfy the SOLAS carriage requirement. SOLAS publications. recognises that such nautical charts and publications may be in the form of a ‘specially compiled database’. IMO Circular MSC-MEPC.2/Circ.2 also states that 1. The regulatory environment “publications may be carried in the form of electronic 1.1. Regulation 2.2, Chapter V of the International media such as CD-ROM instead of hard copies”. Convention for the Safety of Life at Sea (SOLAS) defines 2.2. The UKHO’s digital nautical publications are specially a nautical chart or nautical publication as being: compiled databases with software that enables them “a special-purpose map or book, or a specially compiled to be displayed on a computer screen. The images database from which such a map or book is derived, produced are capable of being printed in hard copy. The that is issued officially by or on the authority of a UKHO’s digital nautical publications provide significant Government, authorized Hydrographic Office or benefits to the mariner. -
Chapter 6 Nautical Publications
CHAPTER 6 NAUTICAL PUBLICATIONS INTRODUCTION 600. Publications supply a ship’s chart and publication library. On-line publications produced by the U.S. government are The navigator uses many textual information sources available on the Web. to plan and conduct a voyage. These sources include notices to mariners, summary of corrections, sailing directions, 601. Maintenance and Carriage Requirements of light lists, tide tables, sight reduction tables, and almanacs. Navigation Publications While it is still possible to obtain hard-copy or printed nautical publications, increasingly these texts Vessels may maintain the navigation publications are found online or in other digital formats, including required by Title 33 of the Code of Federal Regulations Compact Disc-Read Only Memory (CD-ROM's) or Parts 161.4, 164.33, and 164.72 and SOLAS Chapter V Digital Versatile Disc (DVD's). Digital publications are Regulation 27 in electronic format provided that they are much less expensive than printed publications to repro- derived from the original source, are currently duce and distribute, and online publications have no corrected/up-to-date, and are readily accessible on the reproduction costs at all for the producer, and only mi- vessel's bridge by the crew. Adequate independent back-up nor costs to the user. Also, one DVD can hold entire arrangements shall be provided in case of libraries of information, making both distribution and electronic/technical failure. Such arrangements include: a on-board storage much easier. The advantages of electronic publications over second computer, CD, or portable mass storage device hard-copy go beyond cost savings. They can be updated readily displayable to the navigation watch, or printed easier and more often, making it possible for mariners paper copies. -
Hydrographic Surveys Specifications and Deliverables
HYDROGRAPHIC SURVEYS SPECIFICATIONS AND DELIVERABLES March 2019 U.S. Department of Commerce National Oceanic and Atmospheric Administration National Ocean Service Contents 1 Introduction ......................................................................................................................................1 1.1 Change Management ............................................................................................................................................. 2 1.2 Changes from April 2018 ...................................................................................................................................... 2 1.3 Definitions ............................................................................................................................................................... 4 1.3.1 Hydrographer ................................................................................................................................................. 4 1.3.2 Navigable Area Survey .................................................................................................................................. 4 1.4 Pre-Survey Assessment ......................................................................................................................................... 5 1.5 Environmental Compliance .................................................................................................................................. 5 1.6 Dangers to Navigation .......................................................................................................................................... -
Report on the AIIA Vic Study Tour to Indonesia June 2019
Report on the AIIA Vic Study Tour to Indonesia June 2019 Networking Reception in Yogyakarta Report - AIIA Study Tour to Indonesia June 2019 Dear Reader, We arrived in Indonesia with open minds. We came from all States in Australia, except South Australia. We were a very eclectic group of Australians with many different backgrounds, ages and interests. This meant that we saw the same things and heard the same things but through different lenses. This deepened our understanding of Indonesia. The list of all Delegates are appended to this report. We were very well received wherever we went. Our Australian Missions in Indonesia were most helpful. We met with numerous peoples and organisations. These too are listed in this report. Despite taking six internal flights, we saw very little of this very large and diverse country; seeing only Jakarta, Yogyakarta, Makassar and Toraja. And yet, from those visits, we gleaned so much about this most wonderful country. We were fortunate in having briefing materials prior to our departure. The headings of these are appended to this report. We came away from Indonesia optimistic about its future; marvelling at the opportunities it has and the challenges it faces. We nevertheless carry a disappointment in that Australians have a pitiful knowledge about Indonesia. We came away with the understanding that Australians must implement changes to ensure that Indonesia and Australia can only go into the future, hand in hand, if we, in Australia, are determined to inform ourselves better, much better, about our most important neighbour. I hope that this report does something towards achieving that. -
Print Cruise Information
Discovering the islands of South-East Asia From 19/9/2022 From Benoa, Bali Ship: LE LAPEROUSE to 3/10/2022 to Ho Chi Minh City (Saigon) Set out to discover rich cultures, between tradition and modernity, during a 15-day cruise in the South-East Asian islands aboard Le Lapérouse. An original PONANT itinerary that will take you fromIndonesia to Vietnam via Singapore. Your trip will begin on the Island of the Gods. Renowned for the kindness of its inhabitants, Bali offers beautiful discoveries including lush paddy fields, sacred ceremonies, and abundant marine life. On the island ofJava , from the town ofProbolinggo , the active volcano Mount Bromo rises majestically in a unique lunar landscape. Considered as a divinity by Hindus, its immense crater is venerated during pilgrimages and ceremonies. Between the Pacific and Indian Oceans, the idyllic archipelago of Karimun Jawa will reveal its magnificent immaculate white sand beaches bordered by limpid turquoise waters and the beauty of its colourful coral reefs. During your stopover in Semarang, you will visit the incredibleBorobudur site. Listed as a UNESCO Word Heritage site, this monumental Buddhist temple compounds from the 8th and 9th centuries is home to some 240 temples. Between the islands ofJava and Sumatra, you’ll have the privilege of admiring the caldera of Anak Krakatoa in the Sunda Strait. It is the result of the legendary eruption of the eponymous volcano, which destroyed the old island in 1883. In Singapore, city-State on the edges of the Orient, you will be seduced by the unique multicultural atmosphere of this “garden city”, home to wonderful botanical tropical gardens, UNESCO World Heritage Sites. -
MSC.1/Circ.1610 Annex, Page 49 MS 12 – Nautical Publications Service 12.1 Submitting Organization IHO 12.2 Coordinating Bodie
MSC.1/Circ.1610 Annex, page 49 MS 12 – Nautical publications service 12.1 Submitting organization IHO 12.2 Coordinating bodies IMO and IHO 12.3 Description of the Maritime Service This Maritime Service delivers a set of nautical information available for a particular marine area. The aim of the Nautical publications service is to provide information as a support to the navigation process. This comprises information to complement nautical charts, such as information on ports and sea areas, as well as the contact information of authorities and services for a sea area or port. It further describes regulations, restrictions, recommendations and other nautical information applicable in these areas. Nautical publications services include: .1 the information traditionally provided within updated nautical publications such as sailing directions, lists of lights, notices to mariners, tide tables and all other nautical publications necessary for the intended voyage (SOLAS regulation V/27). The majority of the information can be delivered from shore to ship in a digital format. This will enhance the usability, increase the quality and update rate and give the navigator an opportunity to tailor made the information needed; .2 a discovery service to allow users to determine what is available in their area of interest (geographic and context); .3 an ordering service to allow users to order the information required from the service providers identified; and .4 a delivery service to allow the user to receive the information required. 12.4 Purpose The purpose of this Maritime Service is to electronically provide the mariner with information to complement ENCs/nautical charts for advance planning and to navigate a ship safely during the intended voyage.