TECH FILE: Acoustic Tech Used to Understand Climate Change in the Arctic
![The R/V Sikuliaq during a cruise to research sea ice in the Beaufort Sea. Photo ©: Onpoint Outreach](https://images.marinelink.com/images/maritime/w200h200c/the-rv-sikuliaq-during-a-121426.jpg)
Major changes are occurring in the ocean. Climate change and subsequent melting sea ice are not necessarily good changes. Why are acoustic Doppler current profilers an invaluable tool to get a complete picture of the Arctic’s changing wave conditions in the context of climate change?In the Arctic, the end-of-summer sea ice extent in 2020 was the second-lowest in the last 42 years.“The ice used to melt out in June or July. Now it melts out in May. It used to come back in September or October.
MN100: ABB
![Niagara Falls tour operator Maid of the Mist recently ordered two new passenger vessels sailing on pure electric power, enabled by ABB’s technology. IMAGE: ABB](https://images.marinelink.com/images/maritime/w200h200c/niagara-falls-tour-operator-maid-104624.jpg)
At the very cutting edge of clean, modern and ultra-efficient propulsion and automation solutions, ABB takes its rightful place amongst MarineNews' prestigious 2019 MN100 winners.The Case:ABB believes that modern ships will be built on the foundation of electricity. This expands their range of viable energy sources beyond traditional fuel to for instance batteries and fuel cells. The electrical backbone, integrated with automation and control systems, will also transform the industry…