Jesse Varner

Jesse Varner has been a GIS specialist at NOAA's National Centers for Environmental Information (NCEI) in Boulder, Colorado for 12 years. He has a degree in Computer Science from the University of Colorado, and is interested in geospatial web services, interactive web maps, and cartography. (read more)
2020-06-02 09:19:13

Research Expedition to Map Scottish Seabed

Slow Recovery of Coral Reef Shows Impact of Bottom Trawling
Newly developed 3D imaging technology has allowed scientists to map Darwin Mounds, a unique area of cold-water coral reefs off the coast of Scotland, to see whether it has recovered since being declared a Marine Protected Area sixteen years ago. The images show that in areas of the Darwin Mounds that had been heavily trawled, coral growth is still very sparse, and there has been no real recolonization. However, healthy coral growth was found in parts that had only been minimally damaged by bottom trawling, indicating that marine conservation measures are most effective when they are put in place before damage occurs.... (read more)
2020-05-18 01:46:12

Mariscope Introduces Innovative Solutions in Underwater Cleaning and Measurement using ROVs

Mariscope Meerestechnik is a Germany-based company that has been a pioneer in the development of underwater robotic solutions for more than 25 years, and is specialized in underwater systems integration customized to customer’s needs. Mariscope has now added the Commander MK III Off-shore to its range of products – a new ROV with very special features. This vehicle was designed, developed and manufactured to carry out special offshore tasks, and later adapted to other activities such as biofouling control-related tasks in aquaculture. The world, in the context of a global pandemic like the one that exists today, needs systems and... (read more)
2020-05-14 03:31:23

ASL Environmental Sciences Assists with Oceanographic Data Collection for Labrador Marine Research and Monitoring

In a collaborative effort with the Nunatsiavut government and Dalhousie University to measure ice, water current and other physical and biological properties of the marine environment, ASL Environmental Sciences Inc. contributed a prototype Log Ice Profiling Sonar (LogIPS). On 15 February, the sonar was deployed on a taut-line mooring in the waters off Nain, Nunatsiavut, Labrador, Canada. The mooring also contained an acoustic doppler current profiler (ADCP), as well as data loggers for chlorophyll, turbidity, temperature-salinity and dissolved oxygen. The mooring was deployed through a hole cut in the sea ice, with an open-water recovery planned for later this year. The... (read more)
2020-05-07 01:43:35

"I Felt Guilty for Being Somewhat Sheltered from the Barrage of News"

"We had just finished setting up and securing the scientific equipment in the main lab of RV Ronald Brown when we found out that our research cruise to the South Atlantic had been cancelled", Channing Prend, a graduate student in the laboratory of Scripps physical oceanographer Lynne Talley, writes on his blog. "The ship was being recalled to the U.S. by the National Oceanic and Atmospheric Administration due to growing concerns about the COVID-19 pandemic. The news came mere days before we were scheduled to set sail after all scientific personnel had already arrived at the port in Cape Town, South... (read more)
2020-04-28 11:06:26

What is the Physical Oceanographic Real-Time System?

Imagine you’re a port pilot, responsible for the safe passage of a cargo ship that’s about the same size as an aircraft carrier. It’s the middle of the night, it’s windy and you’re contending with large waves and an outgoing tide. A stressful scenario to be sure, but happily you have the benefit of a real-time information system that gives you details about water levels, currents, salinity and weather to help you guide your vessel. That system is known as PORTS, the Physical Oceanographic Real-Time System. Maritime Accidents The concept for PORTS was born following two serious maritime accidents in Tampa... (read more)
2020-04-21 10:10:19

Enhancing Port and Harbour Security with Unmanned Surface Vehicles

As readers of Hydro International know, the world’s ports and harbours are crucial to global trade. From Singapore to Antwerp, to Shanghai, to Rotterdam, to Los Angeles to other mega-ports and hundreds of other smaller ports, these crucial nodes are critical to world trade. A disaster like a fire, explosion, or a major oil spill could close one of these ports for an indefinite time. The secondary effects of such a catastrophe could include releasing a huge amount of pollution into rivers and oceans. As readers of Hydro International know, the world’s ports and harbours are crucial to global trade. From Singapore to Antwerp, and from Shanghai to Rotterdam, Los Angeles, other mega-ports and hundreds of other smaller ports, these crucial nodes are critical to world trade. A disaster like a fire, explosion or major oil spill could close one of these ports for an indefinite time. The secondary effects of such a catastrophe could include releasing a huge amount of pollution into rivers and oceans. The magnitude of providing comprehensive security for an average size port – let alone some of the world’s... (read more)
2020-04-17 09:56:56

What Can We Learn From Two Women Living In Self-isolation?

Now that people around the world are spending more time with roommates and family during the COVID-19 pandemic, what can we learn from two women who lived, voluntarily, in ice-cold conditions? For more than seven months, Sunniva Sorby and Hilde Fålulm Strøm have self-isolated by choice in a one-room wooden cabin in Svalbard, Norway – a cluster of islands midway between continental Norway and the North Pole. In an article published on Public Radio International's (PRI) website, Sorby said: “We try to do things together and plan the day together. It doesn’t always happen because we’re normal people – we both have... (read more)
2020-04-07 10:47:26

First Hydrographic Survey in Cumberland Bay, South Georgia

The team onboard RRS Discovery as part of the ORCHESTRA project recently completed 104 casts measuring conductivity, temperature and depth along three sides of the Scotia Sea and into the Weddell Sea, as well as the first hydrographic survey in the western arm of Cumberland Bay, South Georgia. By measuring where and how much of properties such as heat are stored in the Southern Ocean, and how they are exchanged between different ocean basins, these hydrographic surveys help enhance our understanding of the role of the Southern Ocean in absorbing and storing heat and carbon. Two Main Hydrographic Sections NOC scientist Dr... (read more)
2020-04-06 10:11:06

How GPS Trackers and Drones Help Locate Floating Debris

An estimated 600,000 tons of abandoned fishing gear ends up in the oceans every year. According to the United Nations, some 380,000 marine mammals are killed each year, either by ingesting it or being caught in it. Mary T Crowly of the Ocean Voyages Institute describes how GPS trackers are being used to mark the ghost nets. An estimated 600,000 tons of abandoned fishing gear ends up in the oceans every year. According to the United Nations, some 380,000 marine mammals are killed each year, either by ingesting it or being caught in it. Mary T Crowly of the Ocean Voyages Institute describes how GPS trackers are being used to mark the ghost nets. The Ocean Voyages Institute is a non-profit organization based in Sausalito, California (US). It leads the way in utilizing and adapting existing maritime equipment with innovative approaches to ocean cleanup. For the past 40 years, the Ocean Voyages Institute has devoted its efforts to... (read more)
2020-04-02 12:20:06
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