The National Science Foundation awarded Columbia University a three-year, $701,821 Project Grant under the Geosciences program (CFDA 47.050) to conduct collaborative research on the response of the upper tropical Pacific Ocean to greenhouse gas forcing. The research team, led by a female faculty member and including two early-career researchers, will analyze observations and climate models to better understand how this key component of the climate system responds to anthropogenic forcing....
This National Science Foundation Project Grant of $718,487 supports research into the drivers of regional climate change patterns and their implications. Funded under the Geosciences program (CFDA 47.050), the award runs from May 1, 2022 to April 30, 2027. The principal investigator and collaborators from multiple international institutions will use a suite of climate model experiments to further understanding of the physical mechanisms influencing sea surface temperature warming patterns in key...
This $415,924 federal Project Grant award, funded by the National Science Foundation's Geosciences Program (CFDA 47.050), will support collaborative research to investigate the large-scale dynamics of the tropical Indo-Pacific region during the Last Glacial Maximum. The project aims to reconstruct the tropical thermocline structure and wind patterns using ocean modeling and geochemical analysis of foraminifera sediment samples. This research will lead to a better understanding of how the...
This National Science Foundation (NSF) Geosciences program grant (CFDA 47.050) provides $202,000 to fund research to understand the differences between observed and simulated patterns of tropical Pacific sea surface temperature (SST) warming. The 2-year project, beginning January 1, 2024, involves comparisons between climate models and a simplified Zebiak-Cane atmosphere-ocean model to identify the physical mechanisms causing the contrasting SST trend patterns. The research has implications...
This $372,515 Project Grant awarded by the National Science Foundation (NSF) Geosciences program (CFDA 47.050) supports research to document variations in the influence of the Southern Hemisphere on the Western Pacific Warm Pool thermocline over the past 1.5 million years. The principal investigators at Columbia University will analyze geochemical data from deep-sea sediment cores to determine the timing and patterns of subsurface warming in the Western Pacific Warm Pool relative to surface...
This Project Grant award from the National Science Foundation (NSF) Geosciences Program (CFDA 47.050) in the amount of $635,123 will support research to investigate recent changes in the Kuroshio and Kuroshio Extension systems in the North Pacific Ocean. The goal is to explore what caused the observed "regime shift" in the ocean current dynamics and how this affects North Pacific oceanic and atmospheric conditions, with implications for North American weather patterns. The research...
This $632,314 federal Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) will support a research project led by the University of California San Diego's Scripps Institution of Oceanography. The project aims to provide a better understanding of the physical and biogeochemical processes driving carbon cycling in the equatorial Pacific Ocean. Using a combination of ocean models, autonomous observations, and satellite data, the project will characterize...
This $482,354 federal Project Grant awarded by the National Science Foundation's Geosciences Program (CFDA 47.050) will support collaborative research to study climate variability in the central tropical Pacific over the last millennium. The project will assemble radiocarbon-dated coral samples from the central equatorial Pacific to reconstruct monthly records of sea surface temperature and salinity conditions during the Medieval Climate Anomaly (850-1300 CE) and the Little Ice Age (1400-1850...
This NSF Geosciences Program (CFDA 47.050) Project Grant award of $396,820 to Brown University will be used to produce up to 20 new monthly-resolved records of sea-surface temperature and hydrological variability in the central tropical Pacific from 1800-1950 CE. The project will use oxygen isotope and trace element measurements in modern and fossil corals from Kiritimati Island to reconstruct this climate history. The research aims to improve understanding of long-term trends and variability in...
This $538,591 federal Project Grant award from the National Science Foundation's (NSF) Geosciences program (CFDA 47.050) supports research to investigate the relationship between tropical sea surface temperatures and temperature changes in the tropical tropopause layer (TTL), which regulates the amount of ozone and water vapor entering the stratosphere. The research aims to reconcile two competing theories on this relationship using idealized modeling experiments with different climate models....
This National Science Foundation Project Grant of $267,901 will fund research into the response of the upper tropical Pacific Ocean to greenhouse gas forcing from August 15, 2022 through July 31, 2025. The award was made under the Geosciences program (CFDA 47.050), which supports basic research in the atmospheric, earth, and ocean sciences.
Specifically, the grant will support a collaborative research effort examining how the temperature, currents, and thermal structure of the upper tropical Pacific Ocean have responded and may continue responding to rising greenhouse gas levels. The research team will analyze observations and climate models to investigate the relative roles of thermodynamic and dynamic processes, and determine if biases in how models simulate the tropical Pacific atmosphere-ocean system influence the modeled responses. The work aims to advance understanding of the ocean's active role in the climate system response to anthropogenic forcing.