New Mapping Method Uses Sustained Observations to Estimate AMOC at 22.5°S

Changes in the Atlantic Meridional Overturning Circulation (AMOC) and its transport of heat can affect climate and weather patterns, regional sea levels, and ecosystems. A new study led by Ivenis Pita, a University of Miami PhD student working at NOAA’s Atlantic Oceanographic and Meteorological Laboratory/ the Cooperative Institute of Marine and Atmospheric Studies (CIMAS), is the first to estimate the AMOC and heat transport at 22.5°S in the South Atlantic, demonstrating the importance of sustained in situ observations to monitor the state of the AMOC. 

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A Collaborative Effort Investigates the Biological Carbon Pump, Deploying Sediment Traps Hundreds of Meters Below

A team of scientists from AOML, the U.S. Geological Survey (USGS), and the University of South Carolina retrieve a sediment trap from the Gulf of America, spending months processing and examining the flurry of microscopic shells and environmental DNA (eDNA) of biological debris collected by the trap, known as “marine snow.” This collaborative NOAA–USGS research project uses these sediment trap samples to investigate the biological carbon pump, the ocean’s role in removing atmospheric carbon, and climate change patterns.

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12 Days of AOML Research

Happy Holidays to all!  As we close out 2023, join us as we look back at some of our top research highlights this year! From responding to heat waves to setting records and launching new tech, our dedicated team continues to push the boundary in an effort to support NOAA’s mission to build a climate-ready […]

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Spatiotemporal Variation in Coral Assemblages and Reef Habitat Complexity among Shallow Fore-Reef Sites in the Florida Keys National Marine Sanctuary

Kayelyn R. Simmons, DelWayne R. Bohnenstiehl and David B. Eggleston

With the unprecedented degradation and loss of coral reefs at multiple scales, the underlying changes in abiotic and biotic features relevant to the three-dimensional architecture of coral reefs are critical to conservation and restoration. This study characterized the spatiotemporal variation of habitat metrics at eight fore-reef sites representing three management zones in the Florida Keys, USA using visual habitat surveys (2017–2018) acquired before and after Hurricane Irma. Post-hurricane, five of those sites were surveyed using structure-from-motion photogrammetry to further investigate coral morphology on structural complexity. Multivariate results for visual surveys identified moderate separation among sites, with fished sites characterized by complex physical features such as depth and vertical hard relief while protected sites generally harbored high abundances of live coral cover.

Download the Full Paper: https://doi.org/10.3390/d14030153

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AOML awarded for exceptional science and communications accomplishments

AOML scientists, staff, and team members were recognized this year for their outstanding contributions and dedication to NOAA’s mission. The following individuals and teams are recipients of prestigious awards that acknowledge their dedication to sharing our mission and initiatives with the community, fostering deeper connections and leaving a lasting, positive impact on the lives of those we […]

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2023 Global Carbon Budget Report Emphasizes Urgent Need to Reduce Global Emissions

According to the newest Global Carbon Budget report, global emissions continue to rise and must be significantly reduced to meet global climate targets and avoid severe and deleterious effects of climate change. In 2023, atmospheric carbon dioxide (CO2) concentrations are expected to reach 419.2 ppm, an estimated 51% above pre-industrial levels, with 36.8 billion metric [...]
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NOAA Pioneers New Ways to Advance Hurricane Forecasting

November 30th marks the official end to the 2023 Atlantic hurricane season. Scientists and forecasters from across NOAA pushed boundaries as they worked throughout this active season to conduct crucial tropical cyclone research that will strengthen our ability to forecast future tropical cyclone development and better protect those most affected.

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