Atreyee Bhattacharya

Atreyee Bhattacharya

INSTAAR Affiliate

  • Instructor, Environmental Studies, CU Boulder


  • PhD: Harvard University, 2012
  • MS: Indian Institute of Technology-Kharagpur, 2005
  • BS: Presidency College, Calcutta University, 2003

Contact Information


Geochemistry, recent paleoclimate, Cenozoic oceanography, climate variability of arid regions, desert dust, earth history.


My research focuses on measuring stable isotopes (including clumped oxygen isotopes) and noble gases (particularly Helium) to reconstruct records of (1) high-resolution continental climate variability on relatively recent timescales such as the Late Quaternary Period and the last few millennia and (2) evolution of seawater chemistry and temperature through 'deep time' such as the Cretaceous and Cenozoic.

In addition to measuring and producing paleoclimatic and paleooecanographic data, my research aims to synthesize the data with other types of proxy measurements as well as climate and oceanographic models. I collaborate with meteorologists, modelers, climate and ocean dynamicists to construct model-proxy comparisons from which we can glean information regarding important aspects of the climate and oceanographic systems.


Research Statement

I am interested in studying tropical and extra-tropical climate variability on decadal to millennial timescales. To understand climate variability and study its impact on environment, ecosystems and landscape, I use a suite of approaches that hinges on exploiting 'proxy observation' in high-resolution natural archives (e.g. corals, well-dated lacustrine materials).  I am also interested in using proxy-based climate information to help inform agricultural and business decisions that require knowledge of long term regional climate variability.

I also study earth, climate and ocean process that operate on timescales of millions of years and leave signatures in fossil and the sediment record. I use high precision techniques (such as ion probe, electron probe, clumped isotope and trace elements) in well-preserved fossils and carbonate veins to look for remnants of ancient oceans by constrain effects of diagenesis that often affects these old materials.

See my web site for more about me and my research.



Bhattacharya, A.,Das, H. H.,Bell, E.,Atreyee Bhattacharya,Chatterjee, N.,Saha, L.,Dutt, A, 2016: Restoration of Late Neoarchean-Early Cambrian tectonics in the Rengali orogen and its environs (eastern India): The Antarctic connection. Lithos, 263: 190-212. DOI: 10.1016/j.lithos.2016.06.006

All publications by Atreyee Bhattacharya >



Current Courses

  • ENVS 4100: Special Topics in ENVS: The Marine and the Maritime Love the oceans? Worried about the future of this massive (75%) environment? Come and explore coral reefs, sea ice stability, ocean acidification, polar oceans, marine biodiversity, trash in the oceans and much more in this unique seminar style class. Learn how to read peer reviewed papers, reports, debate and work in groups to come up with unique solutions to ocean based issues.
  • ENVS 4800/IAFS 4500: Drought, Climate and Conflict Ever wondered how the environment might play a role in conflict? Has access to energy been critical? How might we approach these complex human-environment-climate interactions? Come and participate in a class that centers around understanding these questions while learning new data analyses tools in the context of new cultures and societies. Become proficient in using scientific method to develop policies. Most of all, take the first step to becoming global citizens.