The Bering Sea Survey

Adapted from Article by E. W. Eickelberg, Hydrographic and Geodetic Engineer, Commanding, US Coast and Geodetic Survey Ship Guide
1939 marked the beginning of a concerted programme to chart the Bering Sea area. The surveys in this area that were conducted prior to United States entry into the Second World War marked some of the last that were done in frontier areas prior to the advent of the era before electronic navigation systems, shallow-water fathometers, and widespread  use of gyrocompasses, outboard motors, helicopters and other tools that eased the work of mid-to-late-twentieth century hydrographers. The Coast and Geodetic Survey Ship Guide, under the command of Commander Ernest Eickelberg,  was assigned the initial work associated with this endeavour and commenced... (read more)
2016-03-01 11:00:46

Under the Sea and on the Water

What to Expect from Offshore Survey 09
Technical conference Offshore Survey 09 takes place at the National Oceanography Centre in Southampton (UK) on 1–2 April. It is targeted at those in the ocean industry who are involved in oil and gas exploration, production, development and decommissioning; offshore energy renewables including wind and wave power generation; and ports and harbours. The conference is timed to complement the at-sea technology demonstrations and exhibits of Ocean Business 2009, which will be held from 31 March to 2 April at the same venue, by looking at the major issues and practice of offshore survey in the international oil and gas industry.... (read more)
2009-02-27 12:00:00

Mountains in the Sea II

As noted in the previous issue of Hydro International, at least 200 seamounts had been discovered prior to the Second World War. The advent of acoustic sounding systems and the efforts of a few expeditions and organisations accounted for the majority of these discoveries. However, because of an increasing number of vessels equipped with sounding instruments and the far-ranging fleet operations of the United States Navy, discovery in the oceans did not stop with the coming of the Second World War. Warships equipped with echo sounders crisscrossed the world’s oceans. In particular, the Pacific ocean was fertile ground for the... (read more)
2016-07-28 04:01:04

Sea Levels and the Coast

The oceans are a central part of the global climate system. As Roger Revelle, one of the early directors of the Scripps Institute of Oceanography, said, “The oceans exert a profound influence on mankind and indeed upon all forms of life on Earth. The oceans are inexhaustible sources of water and heat, and control the climate of many parts of the world.” He also recognised that “human beings are now carrying out a large-scale geophysical experiment of a kind that could have not have happened in the past nor be reproduced in the future”. Roger Revelle’s thoughts have even more... (read more)
2007-10-27 12:00:00

Surveying in the Ross Sea

The deepwater research vessel Tangaroa of the National Institute of Water & Atmospheric Research (NIWA) of New Zealand undertakes regular research expeditions to the Antarctic waters. In the last eight years, this 70m ice-strengthened vessel has successfully completed seven voyages to Antarctica: three of which were to the Ross Sea. This article describes her 48-day voyage in 2006. During this latest voyage, she once again collected data to extend our knowledge of the geophysical and biological make-up of the Ross Sea region Looking Back Tangaroa ’s first voyage to the Ross Sea was in February–March 2001, when it undertook a... (read more)
2007-05-09 12:00:00

Google Earth Meets the Sea

Marine Charting for Google Earth
Google Earth and its related layer language Keyhole Markup Language (KML) have taken the mapping world by storm. Combining an approachable user interface, high-quality satellite imagery, and free cost (for personal use), it has encouraged a thriving developer community for both open source and commercial map applications. Various governmental, academic and commercial organisations have released marine content for Google Earth – particularly in regards to the environment and weather. This article describes how the start-up company EarthNC, Inc. is offering a full vector conversion of the official US Electronic Navigation Chart (ENC) chart catalogue to the native Google Earth format.... (read more)
2007-07-13 12:00:00

Law Enforcement Agencies Discover Scanning Sonar

Public security organisations are more interested in scanning sonar, that is able to produce a "picture" of the underwater environment regardless of water visibility. It can locate submerged objects from drowning victims to sunken vessels. Using this sonar dramatically reduces the time divers spend in the water, which is extremely important in difficult or dangerous situations. Another advantage of scanning sonar is its economical cost compared to side scan systems, which makes it an affordable alternative for many smaller departments.   The scanning sonar can be used as a stand-alone system or attached to an ROV. When the sonar is... (read more)
2007-06-29 11:29:16

Side-scan Sonar Training for Law Enforcement

Black Laser Learning has opened the registration for their live, two-day side-scan sonar training seminar for law enforcement personnel scheduled for January 2012. Open to law enforcement and marine rescue personnel, the event is being organised in cooperation with the Lowndes County Sherriff's office and will be held at Valdosta, Lowndes County, Georgia, USA, on 11th and 12th January 2012.   Participants can expect day one of the event to be spent in the classroom, learning the principles of sonar operations, with  laymen's explanations of procedures and example sonar images. Day two will consist of hands-on training on the water... (read more)
2011-10-24 11:28:30

North Sea Checkpoint: Audit of the Blue Economy

SeaZone, UK, has been appointed to lead the North Sea Checkpoint, a European Commission initiative to drive forward the blue economy. The North Sea Checkpoint will establish a method for ‘valuing’ the data made available through initiatives such as EMODnet and Copernicus. The project team is applying semantic web approaches that are more routinely encountered on ‘smart’ websites that help users choose hotels or consumer goods. Aim is to show in a transparent way the value of the data. With so much information coming on line, users need to both find and trust the data they download. This allows us... (read more)
2014-06-10 10:22:03

Sea Machines Robotics Presents 'The Power of Marine Autonomy' Video

Sea Machines Robotics has released a CGI animation engineered to clarify the benefits of autonomous technology for boats and ships. The powerful animation is creatively narrated to demonstrate the company’s principle product, the Sea Machines 300, and the power of meshed-sensor technology. The viewer is taken on a thrilling ride through the system components and given beautifully rendered use-case examples at sea. The oceans cover nearly three-quarters of our planet’s surface and it’s a world churned by millions of vessels that are the basis of an oceanic economy valued around USD2 trillion; and surprisingly it’s a realm that remains an... (read more)
2017-12-21 09:54:17
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