Stanford Doerr School of Sustainability


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  • Laura Mansfield

    Laura Mansfield

    Postdoctoral Scholar, Earth System Science

    BioI am interested in how machine learning and Bayesian statistics can assist our understanding and prediction of the climate and weather. My current research focuses on improving gravity wave parameterizations in atmospheric circulation models, which are necessary to capture the subgrid-scale gravity waves that influence the middle atmosphere dynamics. Machine learning can be used to either improve existing physics-based parameterizations, i.e. through calibration, or to replace these entirely with novel machine learning alternatives. I work on both of these approaches and am particularly interested in exploring uncertainties arising from parameterizations.

    Previously, I completed my PhD at the University of Reading, which focused on emulating climate models to estimate the surface temperature response to changes in anthropogenic forcings, including both long-lived greenhouse gases and short-lived aerosol pollutants. Prior to this, I completed the Mathematics of Planet Earth MRes at University of Reading, after coming from an undergraduate degree in Physics at Imperial College London. Outside of work, my interests include cycling, running and being outdoors in California.

  • Josheena Naggea

    Josheena Naggea

    Postdoctoral Scholar, Earth System Science

    Current Research and Scholarly InterestsJosheena is an André Hoffmann Fellow at the Stanford Center for Ocean Solutions and the World Economic Forum Centre for the Fourth Industrial Revolution. Her current work is focused on centering blue justice and equity for ocean innovations in small-scale fisheries and aquaculture. Her community-engaged research has focused on climate change adaptation, marine protected area management, disaster impacts and recovery, and the valorization of natural and cultural heritage in ocean governance. She has a keen interest in understanding people-ocean connections and how they influence coastal livelihoods, local environmental stewardship, and food security.

    She is also an IPBES (Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services) fellow on the Transformative Change Assessment, investigating the determinants of transformative change and pathways for achieving the 2050 Vision for Biodiversity.

    Josheena holds a Ph.D. in Environment and Resources from the Emmett Interdisciplinary Program in Environment and Resources (E-IPER) at Stanford University. Her doctoral work aimed to support ocean governance in the Western Indian Ocean, with a focus on the Republic of Mauritius, her home country. She is presently a national steering committee member of the Global Environment Facility (GEF) Small Grants Programme (SGP), implemented by the United Nations Development Programme (UNDP) in Mauritius, where she continues to support community-led efforts for sustainability, biodiversity conservation, and poverty alleviation.

  • Alireza Namayandeh

    Alireza Namayandeh

    Postdoctoral Scholar, Earth System Science

    Current Research and Scholarly InterestsDr. Namayandeh's research interests are centered around three primary areas: 1) the formation and transformation of natural nanoparticles, 2) their interaction with contaminants and nutrients in the Earth's surface environment, and 3) how these interactions impact human health. He is currently studying the generation of toxic metals in soils at extremely high temperatures. He is also involved in solving global and environmental health problems, particularly in low-income countries. He is working on a project in Bangladesh focusing on lead exposure.

    He is also interested to integrate environmental justice into his research. He conducts Eco-theater workshops at Stanford, in which participants create performing arts about the social aspects of California wildfires, including the impact on underrepresented groups such as inmate firefighters.

  • Newton Huy Nguyen

    Newton Huy Nguyen

    Postdoctoral Scholar, Earth System Science

    BioI am currently a Stanford Science Fellow doing postdoctoral research in the Doerr School of Sustainability and in the Department of Physics. My research focuses on understanding the ultimate fate of methane and other carbon species in the atmosphere. To do this, I apply remote sensing, data assimulation, and numerical models to improve the way we detect, quantify, and trace carbon with satellites and ground-based sensors. I earned my PhD in Environmental Science and Engineering at Caltech in 2023. I am also an avid marathon runner, and proud to be representing Rabbit as a member of their 2024 Elite Team!