About Me

I am a Ph.D. candidate working with Daniel Jacob at Harvard University. I am currently working on improving constraints on methane emissions using satellite observations, with a focus on emissions from livestock. In my free time I enjoy cooking vegan food, napping, and going to the beach.

Publications

Hancock, S.E., Jacob, D.J., Chen, Z., Nesser, H., Davitt, A., Varon, D.J., Sulprizio, M.P., Balasus, N., Estrada, L.A., Cazorla, M., Dawidowski, L., Diez, S., East, J.D., Penn, E., Randles, C.A., Worden, J., Aben, I., Parker, R.J., and Maasakkers, J.D., Satellite quantification of methane emissions from South American countries: a high-resolution inversion of TROPOMI and GOSAT observations, Atmos. Chem. Phys., 25, 797–817, https://doi.org/10.5194/acp-25-797-2025, 2025.

Estrada, L.A., D.J. Varon, M. Sulprizio, H. Nesser, Z. Chen, N. Balasus, S.E. Hancock, M. He, J.D. East, T.A. Mooring, Integrated Methane Inversion (IMI) 2.0: an improved research and stakeholder tool for monitoring total methane emissions with high resolution worldwide using TROPOMI satellite observations, EGUsphere, 2024, 1-31, https://doi.org/10.5194/egusphere-2024-31, 2024.

Chen, Z., Jacob, D. J., Gautam, R., Omara, M., Stavins, R. N., Stowe, R. C., Nesser, H. O., Sulprizio, M. P., Lorente, A., Varon, D. J., Lu, X., Shen, L., Qu, Z., Pendergrass, D. C., and Hancock, S.E. , Satellite quantification of methane emissions and oil/gas methane intensities from individual countries in the Middle East and North Africa: implications for climate action, Atmos. Chem. Phys., 23, 5945–5967, https://doi.org/10.5194/acp-23-5945-2023, 2023.

Hancock, S.E., A.M. Fiore, D.M. Westervelt, G. Correa, J.-F. Lamarque, C. Venkataraman, A. Sharma, Changing PM2.5 and related meteorology over India from 1950-2014: A new perspective from a chemistry-climate model ensemble, Environ. Res.: Climate 2, 015003, https://doi.org/10.1088/2752-5295/acb22a, 2023.

Varon, D.J., D.J. Jacob, M. Sulprizio, L.A. Estrada, W.B. Downs, L. Shen, S.E. Hancock, H. Nesser, Z. Qu, E. Penn, Z. Chen, X. Lu, A. Lorente, A. Tewari, and C.A. Randles, Integrated Methane Inversion (IMI 1.0): a user-friendly, cloud-based facility for inferring high-resolution methane emissions from TROPOMI satellite observations, Geosci. Model Dev., 15, 5787–5805, https://doi.org/10.5194/gmd-15-5787-2022, 2022.

Fiore, A.M., S.E. Hancock, J.-F. Lamarque, G.P. Correa, K.-L. Chang, M. Ru, O. Cooper, A. Gaudel, L.M. Polvani, B. Sauvage, J.R. Ziemke, Understanding recent tropospheric ozone trends in the context of large internal variability: A new perspective from chemistry-climate models, Environ. Res.: Climate 1 025008, https://doi.org/10.1088/2752-5295/ac9cc2, 2022

Fiore, A. M., Milly, G. P., Hancock, S. E., Quiñones, L., Bowden, J. H., Helstrom, E., et al. Characterizing changes in eastern U.S. pollution events in a warming world. Journal of Geophysical Research: Atmospheres, 127, e2021JD035985. https://doi.org/10.1029/2021JD035985, 2022

Presentations

American Meteorological Society (AMS) Annual Meeting, January 2025. Evaluating the Utility of Satellite Observations for Improving Bottom-Up National Emission Inventories: Application to Colombia. (Oral)

Private and Public, Scientific, Academic, and Consumer Food Policy Group (PAPSAC), December 2024. Using satellite observations to monitor methane from livestock. (Oral)

American Geophysical Union (AGU) Fall 2023 Meeting, December 2023. Remote. South American methane: a high-resolution inversion of blended TROPOMI+ GOSAT satellite observations. (Oral)

American Meteorological Society (AMS) Annual Meeting, January 2021. Remote. Changing PM2.5 and related meteorology over India from 1950-2014: A new perspective from a chemistry-climate model ensemble. (Oral)

Community Earth System Model (CESM) Winter Working Group Meeting, February 2021. Remote. Changing PM2.5 and related meteorology over India from 1950-2014: A new perspective from a chemistry-climate model ensemble. (Oral)

American Geophysical Union (AGU) Fall 2020 Meeting, December 2020. Remote. Changing PM2.5 and related meteorology over India from 1950-2014: A new perspective from a chemistry-climate model ensemble. (Oral)

Lamont-Doherty Earth Institute Summer Intern Poster Session, August 2020. Remote. Changing PM2.5 and related meteorology over India from 1950-2014: A new perspective from a chemistry-climate model ensemble. (Poster)