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Comparing Sea Surface Temperatures in June-July-August 2022 to June-July-August 2023


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  • Location: Camborne
  • Location: Camborne
Posted

Ocean surface temperatures set records during the Northern Hemisphere summer of 2023. This comparison shows how much warmer the ocean was in 2023 compared to the previous summer

Introduction

In 2023, many factors have contributed to remarkably high temperatures on land and in the oceans. One of these factors was the development of El Niño conditions in the tropical Pacific Ocean, as well as the corresponding (but not as well known) tropical Atlantic Ocean El Niño. However, this was not the only factor, nor was it the only place that sea surface temperatures (SSTs) were notably warmer than normal. Temperatures in the Mediterranean Sea, off the coast of Florida, and in the North Atlantic Ocean also made the news, and these elevated temperatures were implicated in significant weather events, particularly extreme rains and intense tropical cyclones.

Many maps of SST show anomalies, which are the temperatures compared to a baseline mean temperature averaged over many years (commonly 30 years). While this common depiction is very useful, it is not unusual for temperatures to be warm in the summer (in this case, summer in the Northern Hemisphere). So, in this Data-in-Action article, the NASA visualization tools Giovanni and Panoply are used to compare SSTs averaged over the months of June, July, and August in 2022 and 2023.

https://disc.gsfc.nasa.gov/information/data-in-action?title=Comparing Sea Surface Temperatures in June-July-August 2022 to June-July-August 2023&utm_source=newsletter&utm_medium=email&utm_campaign=earthdata-discovery-122023

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