This $292,831 project grant awarded by the National Science Foundation's Geosciences program aims to simultaneously measure nitrous oxide (N2O) production and consumption in ocean environments with varying dissolved oxygen levels. The research will be conducted by Arizona State University and will: 1) quantify N2O production and consumption rates as dissolved oxygen decreases from oxic to anoxic conditions, 2) determine the degree to which N2O consumption in anoxic zones balances increased...
This Project Grant award from the National Science Foundation Division of Ocean Sciences, under the Geosciences program (CFDA 47.050), provides $869,346 to the Woods Hole Oceanographic Institution to study nitrogen cycling and nitrous oxide production in the Atlantic Ocean. The key products and services to be delivered through this 3-year project include: Measuring and mapping the distribution and isotopic composition of nitrous oxide in the Atlantic interior using a large dataset of over 950...
This $300,785 federal Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) supports a research project to characterize the chemical composition and bioavailability of dissolved organic matter released by marine nitrifying microorganisms. The project aims to determine how this material contributes to carbon cycling in the deep ocean, which may help improve biogeochemical models and inform potential marine carbon dioxide removal activities. The research will...
This National Science Foundation (NSF) Division of Ocean Sciences project grant, CFDA # 47.050 Geosciences, will support collaborative research to decipher the mechanisms of marine nitrous oxide (N2O) cycling in the Arabian Sea using stable isotopes, molecular markers, and in-situ rate measurements. The $809,222 award to the Woods Hole Oceanographic Institution, a private non-profit research organization, will fund field work during the summers of 2024 and 2025, including a cruise of opportunity...
The National Science Foundation (NSF) Division of Ocean Sciences awarded a $467,675 Project Grant to the University of South Carolina (USC) under the Geosciences program (CFDA 47.050) to study nitrous oxide cycling in the Arabian Sea. The award supports research to quantify rates of nitrous oxide production and consumption in marine oxygen-deficient zones using stable isotopes, molecular markers, and in-situ incubation experiments. The project will involve a team of U.S. and Indian...
The University of Massachusetts Dartmouth received a $336,586 Project Grant from the National Science Foundation's (NSF) Geosciences program (CFDA 47.050) to conduct collaborative research on deciphering the mechanisms of marine nitrous oxide (N2O) cycling. The research team, which includes one postdoctoral investigator, two graduate students, and several undergraduates, will use stable isotopes, molecular markers, and in-situ rate measurements to study N2O production and consumption in the...
This Project Grant from the National Science Foundation Division of Ocean Sciences provides $486,515 to The Trustees of Princeton University from October 1, 2021 to September 30, 2024. The grant supports the project "US GEOTRACES GP17-OCE: NITRATE ISOTOPIC SIGNALS OF THE SOUTHERN OCEAN'S CIRCULATION AND BIOGEOCHEMISTRY" under the Geosciences program (CFDA 47.050). The project aims to strengthen understanding of the integrated Earth system through basic research in atmospheric, earth,...
The National Science Foundation awarded a $280,354 project grant under its Geosciences program to Florida State University (FSU) to investigate sedimentary nitrous oxide (N2O) production and consumption in the Northern Benguela Upwelling System off the west coast of Africa. The 3-year project will utilize multi-isotope tracing and microbial ecology approaches to determine the net sediment-water column flux of N2O, production and consumption rates, and the link between measured rates and active...
This National Science Foundation (NSF) Project Grant award under the Geosciences program (CFDA 47.050) provides $625,065 to the Woods Hole Oceanographic Institution (WHOI) to conduct research on how micronutrient limitations, specifically iron and copper, impact the physiology and nitrous oxide production of ammonia oxidizing bacteria and archaea. The project aims to use stable isotopes of nitrogen and oxygen as tools to investigate how the availability of these key metals influences the growth,...
This $365,989 National Science Foundation project grant supports research on nitrogen isotope dynamics on the Amundsen Sea continental margin in Antarctica through the Geosciences program. The grantee, Princeton University, will collaborate with other researchers on the U.S. GEOTRACES GP17-ANT expedition to study the operation of the nitrogen cycle and determine major sources and sinks of biological productivity on this segment of the Antarctic continental shelf. Full depth profiles of...