Wind, waves, and icebergs pierced through morning fog – the A13.5 GO-SHIP cruise proved both tumultuous and rewarding with vast amounts of new data that bring the promise of groundbreaking future research. After 52 days at sea, the A13.5 GO-SHIP cruise (short for “Global Ocean Ship-based Hydrographical Investigations Program”) returned to Cape Town, South Africa […]
Just in! A new study, which analyzed mooring observations and hydrographic data, found the Atlantic Meridional Overturning Circulation (AMOC) abyssal limb in the North Atlantic has weakened over the past two decades contributing to sea level rise in the region.
class=”has-small-font-size”>A. M. Palacio-Castro, I. C. Enochs, et al.
Ocean acidification (OA) threatens coral reef persistence by decreasing calcification and accelerating the dissolution of reef frameworks. The carbonate chemistry of coastal areas where many reefs exist is strongly influenced by the metabolic activity of the underlying benthic community, contributing to high spatiotemporal variability. While characterizing this variability is difficult, it has important implications for the progression of OA and the persistence of the ecosystems. Here, we characterized the carbonate chemistry at 38 permanent stations located along 10 inshore-offshore transects spanning 250 km of the Florida Coral Reef (FCR), which encompass four major biogeographic regions (Biscayne Bay, Upper Keys, Middle Keys, and Lower Keys) and four shelf zones (inshore, mid-channel, offshore, and oceanic). Data have been collected since 2010, with approximately bi-monthly periodicity starting in 2015. Increasing OA, driven by increasing DIC, was detected in the mid-channel, offshore, and oceanic zones in every biogeographic region. In the inshore zone, however, increasing TA counteracted any measurable OA trend. Strong seasonal variability occurred at inshore sites and included periods of both exacerbated and mitigated OA. Seasonality was region-dependent, with greater variability in the Lower and Middle Keys. Elevated pH and aragonite saturation states (ΩAr) were observed in the Upper and Middle Keys, which could favor reef habitat persistence in these regions. Offshore reefs in the FCR could be more susceptible to global OA by experiencing open-ocean-like water chemistry conditions. By contrast, higher seasonal variability at inshore reefs could offer a temporary OA refuge during periods of enhanced primary production.
In a groundbreaking new study, National Oceanic and Atmospheric Administration (NOAA) scientists unveiled a significant advancement in hurricane tracking and forecasting. The study, named “The G-IV Inner Circumnavigation: A Story of Successful Organic Interactions Between Research and Operations at NOAA,” discusses how scientists across NOAA are improving hurricane forecasts through the effective use of NOAA […]
Chris Kelble, Ph.D. will serve as a Federal Coordinating Lead Author on first-ever National Nature Assessment (NAA).
Meet NOAA Corps Officer, LTJG Anna Gaskill In honor of Women’s History Month, NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) spoke with our NOAA Corps Officer, LTJG Anna Gaskill, about her career at NOAA and her advice for women considering opportunities with the NOAA Corps. Anna currently serves as the AOML Operations Manager, primarily coordinating […]
In honor of Black History Month, NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) spoke with Oceanographer Kayelyn Simmons, PhD, about her role at AOML and what Black History Month means to her. Kayelyn is a federal oceanographer at AOML, leading benthic habitat characterization studies using 3D mapping with the Ocean Chemistry and Ecosystems Division. Her […]
Scientists at NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) are gearing up for a busy season at sea with three research cruises departing in the month of February. The A13.5 Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP) cruise, the I08S GO-SHIP cruise, and the Prediction and Research Moored Array in the Tropical Atlantic (PIRATA) Northeast Extension cruise will all depart in February to collect samples from the surface to the depths of the ocean and improve our understanding of ocean circulation, carbon uptake, biological conditions, and climate variability.
Congratulations to AOML’s 2024 Department of Commerce Medal winners! AOML is proud to recognize the achievements of our outstanding scientists for their vital contributions to better understand the Earth systems and protecting our nation.
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.
