This Project Grant from the National Science Foundation Division of Ocean Sciences provides $276,070 to Florida International University for measurement of beryllium-7 as a tracer of upper ocean processes from August 1, 2022 to July 31, 2025. The funding supports measurements of the radioactive isotope beryllium-7 in the water column and on aerosols during the US GEOTRACES GP17-OCE section of the South Pacific and Southern Oceans. Beryllium-7 allows the study of biological production, nutrient...
This Project Grant award from the National Science Foundation's (NSF) Division of Environmental Biology, under CFDA Program 47.074 Biological Sciences, is providing $103,398 to Florida International University (FIU) to develop a novel seafloor sensor/sampler system and associated machine learning control systems. The goal is to better understand how tidal pumping and subsurface currents influence seafloor oxygenation and sedimentary carbon cycling. The project will provide mentoring and field...
This $552,775 Project Grant awarded by the National Science Foundation's Geosciences Program (CFDA 47.050) will fund research to investigate benthic iron fluxes in the Labrador Sea, an important region of deep-water formation. The project aims to identify and quantify iron sources from ocean sediments to the overlying surface waters, which can influence the biological carbon pump in this high-latitude region. The research team from Florida State University will collect sediment and pore water...
This Project Grant award from the National Science Foundation (NSF) Geosciences Program (CFDA 47.050) supports a collaborative research effort to study the ocean iron cycle in the subtropical and equatorial Pacific Ocean. The $480,149 award, which began on April 1, 2025 and will run through March 31, 2028, will fund researchers at the University of South Florida and the University of Hawaii to measure iron isotopes in seawater samples collected during recent GEOTRACES expeditions. By combining...
This Project Grant award for $540,281 from the National Science Foundation's Geosciences Program (CFDA 47.050) supports a collaborative research project between U.S. and U.K. scientists to better understand the linkages between the oceanic cycles of iron and carbon. The research aims to characterize the "colloidal shunt" mechanism, whereby dissolved iron forms aggregates with organic carbon to create particulate matter that sinks out of the upper water column. The project will...
This National Science Foundation (NSF) Geosciences Program (CFDA 47.050) Project Grant, awarded to Northeastern University, provides $354,605 in funding over a 3-year period from April 2025 to March 2028. The project aims to synthesize data on shallow benthic fluxes, or the exchange of carbon, oxygen, and nutrients between the seafloor and water column, along the East Coast of the United States. By combining observational data, modeling results, and long-term datasets, the project will...
This Project Grant award for $197,103, provided by the National Science Foundation's Geosciences Program (CFDA 47.050), supports a collaborative research effort to better understand the linkages between the oceanic cycles of iron and carbon. The project will integrate field observations from the Bermuda Atlantic Time-series Study (BATS) and Cape Verde Ocean Observatory regions with targeted experimental studies and advanced ocean biogeochemical modeling. Key areas of focus include examining...
The National Science Foundation (NSF) awarded a Project Grant of $367,399 to the University of Georgia Research Foundation, Inc. (UGA Research Foundation) under the NSF Geosciences program (CFDA 47.050). This 3-year project, starting in June 2024, will conduct a time-series study of aerosol trace elements in the North Atlantic Ocean near Bermuda. The key objectives are to: Analyze temporal variations in the size distribution of aerosol iron and other bioactive trace elements, and link these to...
This Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) will support the development of a next-generation in-situ instrument for measuring the volume scattering function and degree of linear polarization of light in the ocean. The $847,482 award to Florida Atlantic University aims to provide a powerful new tool for studying particle composition and refining optical-biogeochemical proxies. The instrument will cover a wide range of scattering angles,...
This $269,928 federal Project Grant award from the National Science Foundation's Polar Programs (CFDA 47.078) will fund research to use beryllium-10 (10Be) anomalies from solar proton events as a method for verifying varve chronologies in Arctic lake sediments. The research team at the University of Massachusetts will analyze 10Be concentrations in laminated sediment cores collected from sub- to high-Arctic lakes to determine if 10Be increases associated with solar proton events can reliably...