{"id":588926,"date":"2023-12-20T14:03:11","date_gmt":"2023-12-20T19:03:11","guid":{"rendered":"https:\/\/www.rochester.edu\/newscenter\/?p=588926"},"modified":"2024-01-02T14:05:32","modified_gmt":"2024-01-02T19:05:32","slug":"scientists-uncover-link-between-the-oceans-weather-and-global-climate","status":"publish","type":"post","link":"https:\/\/www.rochester.edu\/newscenter\/scientists-uncover-link-between-the-oceans-weather-and-global-climate\/","title":{"rendered":"Scientists uncover link between the ocean\u2019s weather and global climate"},"content":{"rendered":"

Using mechanical rather than statistical analysis, the team offers a new framework for understanding the climate system.<\/h2>\n

An international team of scientists has found the first direct evidence linking seemingly random weather systems in the ocean with climate on a global scale. Led by Hussein Aluie<\/a>, an associate professor in the University of Rochester<\/a>\u2019s Department of Mechanical Engineering<\/a> and staff scientist at the University\u2019s Laboratory for Laser Energetics<\/a>, the team reported their findings in Science Advances<\/em><\/a>.<\/p>\n

The ocean has weather patterns like what we experience on land, but on different time and length scales, says lead author Benjamin Storer, a research associate in Aluie\u2019s Turbulence and Complex Flow Group<\/a>. A weather pattern on land might last a few days and be about 500 kilometers wide, while oceanic weather patterns such as swirling eddies last three to four weeks but are about one-fifth the size.<\/p>\n

\u201cScientists have long speculated that these ubiquitous and seemingly random motions in the ocean communicate with climate scales, but it has always been vague because it wasn\u2019t clear how to disentangle this complex system to measure their interactions,\u201d says Aluie. \u201cWe developed a framework that can do exactly that. What we found was not what people were expecting because it requires the mediation of the atmosphere.\u201d<\/p>\n

The group\u2019s goal was to understand how energy passes through different channels in the ocean throughout the planet. They used a mathematical method developed by Aluie in 2019, which was subsequently implemented into an advanced code by Storer and Aluie<\/a>, that allowed them to study energy transfer across different patterns ranging from the circumference of the globe down to 10 kilometers. These techniques were then applied to ocean datasets from an advanced climate model and from satellite observations.<\/p>\n

The study revealed that ocean weather systems are both energized and weakened when interacting with climate scales, and in a pattern that mirrors the global atmospheric circulation. The researchers also found that an atmospheric band near the equator called the \u201cintertropical convergence zone,\u201d which produces 30 percent of global precipitation, causes an intense amount of energy transfer, and produces ocean turbulence.<\/p>\n

Storer and Aluie say that studying such complex fluid motion happening at multiple scales is not easy, but that it has advantages over previous attempts to link weather to climate change. They believe the team\u2019s work creates a promising framework for better understanding the climate system.<\/p>\n

\u201cThere\u2019s a lot of interest in how global warming and our changing climate is influencing extreme weather events,\u201d says Aluie. \u201cUsually, such research efforts are based on statistical analysis that require expansive data to have confidence in the uncertainties. We are taking a different approach based on mechanistic analysis, which alleviates some of these requirements and allows us to understand cause and effect more easily.\u201d<\/p>\n

The team that played a central role in the investigation also included Michele Buzzicotti, a research scientist at the University of Rome Tor Vergata; Hemant Khatri, a research associate at the University of Liverpool, and Stephen Griffies, a senior scientist at Princeton.<\/p>\n

Support for the project included funding from the National Science Foundation, the National Aeronautics and Space Administration, and the US Department of Energy.<\/p>\n","protected":false},"excerpt":{"rendered":"

Using mechanical rather than statistical analysis, an international team of scientists offers a new framework for understanding the climate system.<\/p>\n","protected":false},"author":1242,"featured_media":588946,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[116],"tags":[23312,18632,31802,5296,18572],"class_list":["post-588926","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sci-tech","tag-department-of-mechanical-engineering","tag-hajim-school-of-engineering-and-applied-sciences","tag-hussein-aluie","tag-laboratory-for-laser-energetics","tag-research-finding"],"acf":[],"yoast_head":"\nScientists uncover link between the ocean\u2019s weather and global climate<\/title>\n<meta name=\"description\" content=\"Scientists have found the first direct evidence linking seemingly random ocean weather systems with climate on a global 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