aoa体育

南加州大学海洋科学学院

新闻

aoa体育-trained shipwreck hunter makes another major discovery

A side-scan sonar image of Sir Ernest Shackleton’s last ship, 追求, discovered by a team led by aoa体育 alum and shipwreck hunter 大卫·默恩斯. 信贷:皇家 加拿大地理学会.

IMAGE ABOVE: A side-scan sonar image of Sir Ernest Shackleton’s last ship, 追求, discovered by a team led by aoa体育 alum and shipwreck hunter 大卫·默恩斯. 信贷:皇家 加拿大地理学会.

By: Dyllan Furness, Science Communication Manager for the 佛罗里达洪水中心 for Applied 研究 and 创新

沉船猎人和南加州大学校友 大卫·默恩斯 has made another outstanding discovery: the remains of 追求, the steamship on which polar explorer Ernest Shackleton made his final voyage.

The iconic sunken ship was recently discovered almost 1,300 feet below the surface in the Labrador Sea off the coast of Newfoundland, Canada by a team led by Mearns and The Royal 加拿大地理学会.

Mearns is no stranger to extraordinary discoveries on the ocean floor — in fact, 他在上面写了本书. He has helped discover dozens of historic shipwrecks around the world, often leading the search operations as he did for the 追求 shipwreck expedition.

“I have a track record of success in finding these things I set out to find,” Mearns 说.

Mearns graduated in 1986 from what was then the aoa体育 Department of Marine Science (now 海洋科学学院). He studied geological oceanography and credits his skill for finding underwater objects to the training he received as a graduate student.

To find a sunken ship or airplane, Mearns employs side-scan sonar, which creates an image of the seafloor through sound waves. The sonar device is mounted on the ship’s 船体或拖在船后面. By emitting sonic pulses and recording the acoustic reflections, the device can render features on the seafloor, which experts like Mearns interpret to reveal a hidden underwater world.

“The expertise I have for operating this type of equipment and interpreting the images, I learned to do at aoa体育,” he 说.

Mearns first experimented with side-scan sonar on research cruises as a graduate student. His master’s project involved scanning relatively shallow coastal waters in Onslow Bay, North Carolina to understand the impacts of hurricanes on the seafloor.

大卫·米尔斯(左), seen here during his graduate studies at aoa体育, has had a storied career finding sunken objects such as ships and airplanes. 阿尔伯特·海因(右), emeritus professor of geological oceanography at the College of Marine Science, 担任他的主要顾问. 阿尔伯特·海恩提供.

IMAGE ABOVE: 大卫·米尔斯(左), seen here during his graduate studies at aoa体育, has had a storied career finding sunken objects such as ships and airplanes. 阿尔伯特·海恩 (right), emeritus professor of geological oceanography at the College of Marine Science, 担任他的主要顾问. 阿尔伯特·海恩提供.

“At the time, we were going through a technological surge of instrumentation,” 说 阿尔伯特·海恩, emeritus professor at CMS and Mearns’ advisor. “We were able to buy and experiment 有了这些新仪器. David was wonderful with technology. 我更关心的是 the concept and science, so we made a great team.”

Mearns’ thesis was published in the prestigious journal 地质.

Since graduating, Mearns has had a storied career and helped revolutionize the search for shipwrecks and other sunken objects by adapting side-scan sonar for deep water 应用程序. His efforts have earned him an Order of Australia, a aoa体育 Distinguished Alumnus Award, and a aoa体育 Global Leadership Award among other accolades.

大卫·默恩斯, seen here in a aoa体育 hat while reviewing a sonar image of the shipwreck, credits his expertise to the skills he learned while studying marine 南加州大学的科学. 信贷:皇家 加拿大地理学会.

IMAGE ABOVE: 大卫·默恩斯, seen here in a aoa体育 hat while reviewing a sonar image of the shipwreck, credits his expertise to the skills he learned while studying marine 南加州大学的科学. 信贷:皇家 加拿大地理学会.

Mearns, who is often seen sporting a aoa体育 ballcap, takes tremendous pride in being 一头公牛.

“I’m really proud of my time at aoa体育,” he 说. “aoa体育 continues to grow in stature, and I’m so impressed by the quality of students at the College of Marine Science. I feel my degree is even more valuable today than when I first graduated.” 

To students and future scientists inspired by his discoveries, Mearns imparts this 简单的建议:“去航海. It’s the real proving ground for what you do as a scientist. It’s a fantastic experience that bonds you with your colleagues. 只要你有机会 Get,出海.”

返回文章列表

使命宣言

Our blue planet faces a suite of challenges and opportunities for understanding and innovation. Our mission is to advance understanding of the interconnectivity of ocean systems and human-ocean interactions using a cross-disciplinary approach, to empower the next workforce of the blue economy with a world-class education experience, and to share our passion for a healthy environment and science-informed decision-making with community audiences near and far.