Project Grant 2124712

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 National Science Foundation (NSF) Geosciences program Project Grant (CFDA 47.050) awarded to the University of New Hampshire (UNH) provides $155,302 to support collaborative research on the contribution of allochthonous (externally-derived) dissolved organic nitrogen (DON) to biological nitrogen demand in the subtropical North Pacific Ocean. The research expedition will depart from San Diego, CA and end in Honolulu, HI to study the production, accumulation, chemical composition, and...

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 $491,093 National Science Foundation Division of Ocean Sciences Project Grant supports research evaluating the contribution of small eukaryotes to nitrate-based new production in the North Pacific Subtropical Gyre. The grantees, led by Principal Investigator Granger at the University of North Carolina at Chapel Hill, will investigate how phytoplankton access subsurface nitrogen at Station ALOHA in the North Pacific Subtropical Gyre. The researchers will sort phytoplankton by size and...

This $442,689 project grant from the National Science Foundation Division of Ocean Sciences Geosciences program (CFDA 47.050) will fund research evaluating the contribution of small eukaryotes to nitrate-based new production in the North Pacific Subtropical Gyre. The grantees, led by the University of Connecticut Office of Sponsored Programs, will investigate how phytoplankton access subsurface nitrogen at Station ALOHA in the North Pacific Subtropical Gyre. Researchers will sort phytoplankton...

This $582,005 Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) supports research by The Trustees of Princeton University to investigate nitrous oxide (N2O) consumption in the surface ocean. The research aims to determine the factors that control or stimulate N2O reduction in surface waters and characterize the microbes responsible for the process. Specifically, the investigators will perform 15N tracer incubations to measure the rate of N2O reduction...

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 Project Grant award from the National Science Foundation (NSF) Geosciences program (CFDA 47.050) provides $107,673 to the Regents of the University of Minnesota to study the role of dissolved organic nitrogen (DON) in sustaining biological productivity in the oligotrophic subtropical North Pacific Ocean. The award will fund a one-month research expedition from San Diego, CA to Honolulu, HI to collect observations on DON concentration, composition, and utilization by marine microbes. The...

This $297,369 National Science Foundation award under the Geosciences program (CFDA 47.050) will fund research evaluating the contribution of small eukaryotes to nitrate-based new production in the North Pacific Subtropical Gyre. Over a three-year period ending November 2025, the University of Hawaii at Manoa will conduct laboratory and ship-based research to better understand how phytoplankton access subsurface nitrogen in surface waters during summer months. Researchers will sort phytoplankton...

This Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) will support a collaborative research project to understand how particulate organic carbon (POC) is efficiently transferred to depth in the ocean's oxygen minimum zones (OMZs). The $137,593 award to the University of Maryland Center for Environmental Science will fund field research in the Eastern Tropical North Pacific OMZ, including measurements of POC flux, remineralization rates, particle size...