The view from UCSB! Join our group and enjoy whale watching on your lunch break :)

The view from UCSB! Join our group and enjoy whale watching on your lunch break :)

Samantha Stevenson

In October 2017, I joined the Bren School as an assistant professor. I am also affiliated with the Interdepartmental Graduate Program in Marine Sciences, and collaborate closely with the UCSB Geography Department.

From 2014-2017, I was a project scientist at the National Center for Atmospheric Research (NCAR) in what is now the Paleo and Polar Climate section of the Climate & Global Dynamics Laboratory, working with Bette Otto-Bliesner and John Fasullo. Before that, I was an NSF Ocean Sciences Postdoctoral Research Fellow at the University of Hawaii-Manoa Department of Oceanography working with Brian Powell.

From 2007-2011, I completed my PhD at the University of Colorado-Boulder’s Atmospheric and Oceanic Sciences Department with Baylor Fox-Kemper (who is now at Brown University), helped out by a NASA Earth and Space Science Graduate Fellowship.


Current Group Members


Danielle Touma

Danielle is a postdoctoral researcher who joined the group in January 2019. She earned her PhD in fall 2018 from Stanford University’s Earth System Science program, working with Noah Diffenbaugh on extreme events in the climate system.

Here at UCSB, Danielle is working on understanding the contribution of individual anthropogenic and natural forcings to wildfire and extreme precipitation, using large ensemble simulations with the Community Earth System Model (CESM).


Midhun Madhavan

Midhun is a postdoctoral researcher who joined the group in August 2019. He is on leave from Cochin University of Science and Technology in India, where he is an assistant professor in the Department of Atmospheric Sciences. He earned his PhD at the Indian Institute of Technology in 2015, working with Dr. Rangaswamy Ramesh. He then completed postdoctoral studies at the Physical Research Laboratory in Ahmedabad, the Department of Geophysics at the University of Chile in Santiago, and the National Institute of Science Education and Research in Bubaneswar, India.

Here at UCSB, Midhun is using the isotope-enabled Community Earth System Model (CESM) to understand the oxygen isotopic variations associated with modes of natural climate variability such as the El Nino/Southern Oscillation and the Atlantic Multidecadal Oscillation, and to improve our interpretation of climate variations seen in speleothem (cave) records.


Isabelle Runde

Isabelle is an undergraduate researcher who joined the group in June 2019. She is majoring in Geography with Earth Science and Statistics minors, and is studying the response of drought events to both anthropogenic and natural climate changes using CESM large ensemble simulations.


Past Group Members


Cheryl Harrison

Cheryl was a project scientist at UCSB in 2018, while also working at the University of Colorado-Boulder with Nikki Lovenduski. Her focus was on understanding the influence of climate variability on fisheries production.

Cheryl has now moved on to the University of Texas-Rio Grande Valley, where she started as an assistant professor in fall 2018!

Cheryl’s website