Assistant Professor of Earth, Environmental, and Planetary Sciences and Environment and Society


I am a biogeochemist and climate scientist working on the water and carbon cycles in terrestrial environments. My work includes studying the response of past and present terrestrial landscapes to changes in climate using modeling approaches, geochemical measurements, and field observations. Broadly, I am interested in the role that Earth's continents play in modulating habitable surface conditions over geologic time, and in using sediments to reconstruct past changes in weathering and hydrologic fluxes over Plio-Pleistocene to Phanerozoic timescales.

My research group works on a variety of problems associated with the water and carbon cycles using geochemical tracers. This includes studying modern rivers and catchments, as well as the terrestrial geologic record (lakes, soils, and caves), to understand fundamental Earth system processes that link the biosphere, atmosphere, and lithosphere. Specifically, using both modern and geologic data we are focused on quantifying feedbacks and assessing the long-term controls on the global carbon cycle, as well as on regional hydroclimate changes. The aim of this work is to gain a better understanding of how the Earth’s water and carbon cycles respond to forcings, including ongoing anthropogenic climate change. Further, we are also working on the characterization and quantification of lithium deposits in lacustrine basins. Our tools include geochemical measurements, field observations, reactive transport modeling, hydrologic modeling, and synthesis of climate model output.

I am a Filipino-American geoscientist from Bozeman, Montana, though I was born in Europe and grew up as an expatriate in Hong Kong. In 2020 I co-founded the Asian Americans and Pacific Islanders in Geosciences organization. Additionally, I was a founding Advisory Council member of EarthArXiv, a preprint server for the Earth and Planetary Sciences, in 2017, and I serve on the editorial boards for the American Journal of Science (Yale University/HighWire Press), All Earth (Taylor & Francis), Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences and Frontiers in Earth Science. My international collaborations include the International Continental Drilling Program's ongoing terrestrial drilling in the Songliao Basin, northeast China, and participating in the Republic of Philippines' Balik Scientist Program in 2019 at the University of the Philippines, Diliman.

I am an Assistant Professor at Brown appointed in the Department of Earth, Environmental and Planetary Sciences (DEEPS) and as a Fellow in the Institute at Brown for Environment & Society (IBES). Prospective graduate students and postdocs are encouraged to contact me directly.

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