German U-boat Surveyed a Century after Wartime Sinking

A First World War German submarine has been surveyed for the first time since its loss in 1917. Sophisticated scanning techniques and deep-sea video footage have revealed a large hole in the boat’s hull – caused by an attacking British naval vessel. During the summer of 2020, scientists led by deep sea archaeological expert Dr Rodrigo Pacheco-Ruiz of the University of Southampton, in collaboration with offshore survey companies MMT and Reach Subsea, investigated the wreck of UC-47 on behalf of Tolmount Development during offshore operations to prepare for the laying of a new pipeline in the North Sea, some 20... (read more)
2020-08-07 01:29:02

Fugro’s ROV Survey and Monitoring Help Install World’s Longest Subsea Interconnector

Fugro has completed a contract for Nexans to provide remotely operated vehicle (ROV) survey and monitoring support services to lay the North Sea Link cable through a mountain and along a lakebed in Norway. National Grid NSN Link and Statnett are building an electricity interconnector between Kvilldal in Norway and Blyth in the UK which, on completion, will be the longest subsea interconnector in the world. Fugro’s innovative survey and monitoring solutions supported the installation of two cables through the mountain between Hylsfjorden and Lake Suldalsvatnet, and along the lakebed at a depth of 210m. Real-time monitoring and near-real-time processing... (read more)
2020-08-07 03:04:33

A Warming Hole in North Atlantic Ocean

Planet Earth is heating up, yet temperatures are dropping in one area in the North Atlantic. This phenomenon, known as a ‘warming hole’, has been partly attributed to a slowdown in the thermohaline circulation or Atlantic meridional overturning circulation (AMOC) – a deep-ocean process that plays a key role in the heat transport in Earth’s climate. The AMOC is expected to slow down in a warming climate, but how fast and how strong is rather uncertain. Nowadays, the ocean current is measured across the full width in certain places (see image; the dotted lines show projects that are not yet... (read more)
2020-08-04 09:18:55

Mapping the Subsea Forests of the Mediterranean

Reviewing Remote Sensing Image Classification Techniques for Accurate Seagrass Mapping
What is the best image classification technique to optimize maps so that effective action can be taken to conserve seagrass meadows? The distribution of Posidonia oceanica seagrass meadows has been mapped by a combination of remote sensing techniques, geographical information systems (GIS) and sonar data. A fundamental, but challenging, part of this methodology is the remote sensing image classification. This article presents a review of different image classification techniques to optimise the final maps, so that effective action can be taken to conserve seagrass meadows. The degradation of P. oceanica seagrass meadows is a major concern as these marine ecosystems... (read more)
2020-08-04 09:03:05

Sea-ice Extent in the Arctic at a Historical Low

For the month of July 2020, the Arctic sea-ice extent is as low as it has ever been since the beginning of satellite observation. The sea-ice retreat is especially pronounced off the Siberian coast, as a result of which the Northeast Passage (also referred to as the Northern Sea Route) was ice-free by mid-July. Virtually from the outset, this year promised to be an anomalous one in terms of both ice thickness and ice drift. In addition, in June there was a cell of warm air that produced extremely high temperatures in Siberia and seriously impacted the sea-ice cover; in... (read more)
2020-08-04 08:55:45

All American Marine Wins NOAA Research Vessel Contract

The National Oceanic and Atmospheric Administration (NOAA) has awarded All American Marine (AAM) a contract to construct a 50ft aluminium research catamaran for the Olympic Coast National Marine Sanctuary. The twin-engine Teknicraft Design vessel will be constructed by AAM to USCG Subchapter T standards. The vessel will carry up to 18 personnel on board on a near-coastal route. Olympic Coast National Marine Sanctuary (OCNMS) includes 3,188 square miles of marine waters off the rugged Olympic Peninsula coastline. The sanctuary extends 25 to 50 miles seaward, covering much of the continental shelf and several major submarine canyons.  The semi-displacement catamaran hull for... (read more)
2020-08-04 08:36:34

Fugro Begins Extensive Site Characterization for ScottishPower Renewables’ East Anglia Hub

Fugro has begun the geophysical survey phase of a large multidisciplinary site investigation contract worth around GBP55 million for ScottishPower Renewables’ (SPR’s) East Anglia Hub project. The phased site investigations are scheduled to finish at the end of 2021 and support the development of wind farms in the UK southern North Sea over an area of more than 800 square kilometres. The results from Fugro’s site characterization will feed into SPR’s ground models for the East Anglia Hub and support seabed mobility assessment, foundation design and cable-route engineering. Operating from dedicated geophysical survey vessels, the Fugro team began the UXO... (read more)
2020-08-04 09:38:18

NOAA Selects Woolpert for US$40M Shoreline Mapping Support Services Contract

Woolpert has been selected as a prime consultant for the National Oceanic and Atmospheric Administration’s (NOAA) Shoreline Mapping Support Services contract. The firm and its partners will provide updated charting data and analytics of the national shoreline for use in nautical charts, to support maritime navigation, to define territorial limits and to manage coastal resources. The five-year indefinite delivery, indefinite quantity contract will support NOAA’s National Ocean Service (NOS), National Geodetic Survey (NGS) and Remote Sensing Division (RSD). The contract has a ceiling of US$40 million. Extensive data acquisition and processing The Shoreline Mapping Support Services contract is being administered by... (read more)
2020-07-28 08:33:26

600 Researchers to Spend a Whole Year Trapped in the Ice

The Biggest Arctic Expedition of All Time?
On 20 September 2019, the German research icebreaker Polarstern left Tromsø, Norway, for what could be the biggest Arctic research expedition of all time. Once she reaches the destination, the ship and her crew will become trapped in the ice and spend an entire year drifting through the Arctic Ocean. Over 600 scientists and surveyors from 19 countries are on board Polarstern for the MOSAiC expedition, and several times that number of researchers will subsequently use the data gathered in further climate and ecosystem research. The mission is being spearheaded by the German Alfred Wegener Institute, Helmholtz Centre for Polar and... (read more)
2020-07-27 03:48:02

Using New Acoustic Technology to Help Conserve the Southern Ocean Ecosystem

As fisheries are starting to harvest krill resources to feed the world’s population, this must be done in a sustainable manner, based on accurate, scientific observations. Scientists at NOAA in the USA are now using sophisticated new acoustic technology to truly “see” krill in the Southern Ocean. How will this scientific research help conserve the Southern Ocean ecosystem? Today, one-third of commercially important marine fish stocks in the ocean are suffering from the effects of overfishing. As krill is becoming an important supplement for fisheries looking to harvest new resources, sustainable management of krill fisheries has come to the fore.... (read more)
2020-07-28 09:19:28
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