Aradhna Tripati

About

Aradhna Tripati is a professor at UCLA, serving as the Director and Principal Investigator of the Institute of the Environment and Sustainability (IoES). Her work is highly interdisciplinary, spanning the Institute of the Environment and Sustainability, the Department of Atmospheric and Oceanic Sciences, the Department of Earth, Planetary, and Space Sciences, the Institute for Geophysics and Planetary Physics, and the California Nanosystems Institute. She researches and teaches about climate change, the history and dynamics of Earth systems including climate, ice sheets, oceans, the water cycle, and carbon dioxide levels, as well as tool development and clumped isotope geochemistry. Growing up in Los Angeles, her passion for environmental science was ignited during a college course on Environmental Geology. She has mentored over 130 postdoctoral fellows, researchers, and students at various levels, and has established world-renowned laboratories. Her research has garnered over 3000 citations, and she has published extensively, including in top journals such as Nature, Science, and Proceedings of the National Academy of Sciences. Her lifelong goals include advancing geochemical tracers for Earth system processes, studying climate change history and dynamics, and promoting diversity in environmental science and higher education. Aradhna has received numerous awards for her research, education, and outreach, including the Presidential Early Career Award in Science and…

Research topics

• Geology
• Mineralogy
• Paleontology
• Geochemistry
• Computer Science
• Biology
• Chemistry
• Metallurgy
• Astrobiology
• Environmental science

Selected publications

• InterCarb: A Community Effort to Improve Interlaboratory Standardization of the Carbonate Clumped Isotope Thermometer Using Carbonate Standards

  Geochemistry Geophysics Geosystems · 2021 · 328 citations

  (I-CDES) values for Intercarb-Carbon Dioxide Equilibrium Scale.

  DOI

• Toward a Cenozoic history of atmospheric CO ₂

  Science · 2023 · 186 citations

  thresholds in biological and cryosphere evolution.

  PublisherOA PDFDOI

• Massive formation of early diagenetic dolomite in the Ediacaran ocean: Constraints on the “dolomite problem”

  Proceedings of the National Academy of Sciences · 2020 · 145 citations

  O values of diagenetic fluids, rare earth element plus yttrium compositions, and petrographic observations of these dolostones are consistent with an early diagenetic origin in a rock-buffered environment. We thus propose that a precursor precipitate from seawater was subsequently dolomitized during early diagenesis in a near-surface setting to produce the large volume of dolostones in the Doushantuo Formation. Our findings suggest that the preponderance of dolomite in Paleozoic and Precambrian…

  DOI

• Carbonate clumped isotope analysis (Δ ₄₇ ) of 21 carbonate standards determined via gas‐source isotope‐ratio mass spectrometry on four instrumental configurations using carbonate‐based standardization and multiyear data sets

  Rapid Communications in Mass Spectrometry · 2021 · 33 citations

  Senior authorCorresponding

  RATIONALE: Clumped isotope geochemistry examines the pairing or clumping of heavy isotopes in molecules and provides information about the thermodynamic and kinetic controls on their formation. The first clumped isotope measurements of carbonate minerals were first published 15 years ago, and since then, interlaboratory offsets have been observed, and laboratory and community practices for measurement, data analysis, and instrumentation have evolved. Here we briefly review historical and recent…

  PublisherOA PDFDOI

• Oxygen rise in the tropical upper ocean during the Paleocene-Eocene Thermal Maximum

  Science · 2024-02-15 · 27 citations

  articleOpen access

  The global ocean's oxygen inventory is declining in response to global warming, but the future of the low-oxygen tropics is uncertain. We report new evidence for tropical oxygenation during the Paleocene-Eocene Thermal Maximum (PETM), a warming event that serves as a geologic analog to anthropogenic warming. Foraminifera-bound nitrogen isotopes indicate that the tropical North Pacific oxygen-deficient zone contracted during the PETM. A concomitant increase in foraminifera size implies that oxyge…

  PublisherOA PDFDOI

Recent grants

• RAISE: Bringing Together Diverse Perspectives on Water

  NSF · $1.3M · 2019–2025

• Early-concept grant for exploratory research (EAGER) proposal: Accessing the potential of clumped isotope thermometry to constrain temperatures in the Arctic during the Pliocene

  NSF · $236k · 2012–2014

• Collaborative Research: EAGER: A cross-institution Veterans in Green STEM program

  NSF · $181k · 2020–2022

Frequent coauthors

• Robert A. Eagle

  University of California, Los Angeles

  321 shared

• Jamie Lucarelli

  Center for Creative Leadership

  99 shared

• Victoria A. Petryshyn

  95 shared

• Maxence Guillermic

  University of California, Los Angeles

  94 shared

• Ben Elliott

  84 shared

• Yama Dixit

  Indian Institute of Technology Delhi

  75 shared

• Alexandrea Arnold

  NOAA Oceanic and Atmospheric Research

  61 shared

• S. J. Loyd

  California State University, Fullerton

  61 shared

Labs

• Tripati LabPI

  Not provided

Education

• Ph.D., Environmental Science and Engineering

  University of California, Los Angeles

• M.S., Environmental Science and Engineering

  University of California, Los Angeles

• B.S., Environmental Science

  University of California, Los Angeles

Awards & honors

• Presidential Early Career Award in Science and Engineering f…
• NSF CAREER award
• Bromery Award for Minorities from the Geological Society of…
• Hellman Fellow
• National Academy of Sciences Kavli Fellow

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