Jul 14, 2023 · More isolated marine heat wave conditions have been detected off the Northeast U.S. coast, along the path of the Gulf Stream. NOAA has also been monitoring a large marine heat wave in the Northeast Pacific (in the Gulf of Alaska) …

A marine heatwave is a period of abnormally high sea surface temperatures compared to the typical temperatures in the past for a particular season and region. [1] Marine heatwaves are caused by a variety of drivers.

Nov 20, 2024 · Marine heatwaves have profoundly impacted marine ecosystems over large areas of the world oceans, calling for improved understanding of their dynamics and predictability.

Apr 20, 2022 · Marine heatwaves are periods of persistent anomalously warm ocean temperatures, which can have significant impacts on marine life as well as coastal communities and economies. Scientists at PSL are working to characterize marine heatwaves, understand how they form and dissipate, and predict them in advance.

Feb 4, 2025 · This map shows the change in annual cumulative intensity of marine heat waves along U.S. coasts from 1982 to 2023. Cumulative intensity is measured in degree days—marine heat wave intensity multiplied by duration. Areas with increases are shown in red, with darker colors indicating greater change.

Aug 15, 2018 · Marine heatwaves (MHWs) are periods of extreme warm sea surface temperature that persist for days to months 1 and can extend up to thousands of kilometres 2. Some of the recently observed marine...

This review summarizes the latest physical and statistical understanding of marine heatwaves based on how they are identified, defined, characterized, and monitored through remotely sensed and in situ data sets. We describe the physical mechanisms that cause marine heatwaves, along with their global distribution, variability, and trends.

Marine heatwaves are events where temperatures are unusually high for an extended period. One commonly used metric defines a marine heatwave as an event where temperatures exceed the 90th percentile of 30-year historic values for five or more days in a row.

Sep 14, 2022 · Marine heat waves are defined as sharp spikes of anomalously warm temperature that last at least five days, although many persist for weeks or months. Fueled by climate...

We are an international group of scientists dedicated to understanding marine heatwaves on regional to global scales: their physical drivers, properties, predictability and socio-ecological impacts. We take a multi-disciplinary approach to inform management and conservation. This page summarises new research from our group and others.