People
![Ummenhofer_photo Caroline Ummenhofer](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2021/12/Ummenhofer_photo.jpg)
Caroline Ummenhofer
Caroline Ummenhofer received a Joint Honours B.Sc. in Marine Biology and Physical Oceanography from the University of Wales, Bangor, UK, and a PhD in Applied Mathematics, specializing in climate modeling, from The University of New South Wales (UNSW), Sydney, Australia. Her PhD thesis received the Uwe Radok Award in ocean/atmosphere/climate science by the Australian Meteorological and Oceanographic Society. Caroline was a Postdoctoral Fellow at the ARC Centre of Excellence for Mathematics and Statistics of Complex Systems, held a Vice-Chancellor Postdoctoral Fellowship at UNSW, and was a Visiting Fellow with CSIRO Marine and Atmospheric Research in Hobart, Australia. Since 2012, she holds a faculty position in the Physical Oceanography Department at Woods Hole Oceanographic Institution, Woods Hole, USA.
Her research interests include interannual to decadal climate variability, the hydrological cycle, monsoon dynamics, extreme events, droughts, hydroclimate paleo reconstructions of the last millennium, historical climatology, bio-physical interactons, marine heatwaves, and the effects of climate on agriculture. In particular, her research focuses on Indian Ocean dynamics, its variability and role for regional rainfall variations and droughts in the surrounding countries, spanning from seasonal to decadal timescales. A key goal of Caroline’s research has been to bridge the gap between ocean and climate dynamics and its impacts on end users. As such, she aims to provide practical outcomes of use to stakeholders in the agriculture and water management sectors and the broader public.
![LSteinFreitas_square LSteinFreitas_square](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2024/05/LSteinFreitas_square.jpg)
Livia Stein Freitas
Summer Student Fellow 2024 (B.S. in Computer Science & English, Grinnell College); project on historical ship logbooks
![LSmith_square LSmith_square](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2024/05/LSmith_square.jpg)
Logan Smith
Guest student 2024 (B.A. in Geology, Cornell College); project on impact of volcanic eruptions on Nepal hydroclimate over the last millennium
![TessaGiacoppo TessaGiacoppo](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2023/10/TessaGiacoppo.jpg)
Tessa Giacoppo
Research Assistant since 2023; project on maritime weather observations from New England whaling ship logbooks
![TCarr-square Theo Carr](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2021/12/TCarr-square.jpg)
Theo Carr
MIT-WHOI Joint Program student since 2020; Guest Student 2019-2020 (B.S. Mathematics, Northeastern University); project on seasonal rainfall forecasting using machine learning
![SWang-square Shawn Wang](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2021/12/SWang-square.jpeg)
Shawn Wang
MIT-WHOI Joint Program student since 2019; project on Southeast Asian hydroclimate and Indo-Pacific climate drivers using paleoproxies and models
![ASchefler ASchefler](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/06/ASchefler.jpg)
Ashley Schefler
MIT-WHOI Joint Program student since 2023; Summer Student Fellow 2022 (B.S. in Physics, Haverford College); project on variability and change in oxygen minimum zones
![NeeleSander NeeleSander](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2023/08/NeeleSander-1-scaled.jpg)
Neele Sander
Guest student since 2022 (BSc Physics of the Earth System, Christian-Albrechts-University, Kiel, Germany), sponsored by RISE; project on whaling ship logbooks
![DanielWaitzmann DanielWaitzmann](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2023/08/DanielWaitzmann-1.jpg)
Daniel Waitzmann
Guest student since 2023 (BSc Physics of the Earth System, Christian-Albrechts-University, Kiel, Germany), sponsored by RISE; project on Indo-Pacific Warm Pool variability in ocean and climate models
Alumni
![](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2023/04/ABelvis-Aquino.jpg)
Andrea Belvis-Aquino
Summer Student Fellow 2023 (B.S. in Industrial Engineering, University of Puerto Rico Mayaguez); project on ocean salinity's utility for crop yield predictions
![SRyan-square SRyan-square](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2023/09/SRyan-square-300x300.png)
Svenja Ryan
Postdoctoral Investigator, Research Associate 2022-2023; projects on New England coastal/shelf variability; Postdoctoral Fellow 2019 – 2021, supported by an Alexander von Humboldt Feodor-Lynen Fellowship on marine heatwaves
(now Assistant Scientist at WHOI)
![NWhitney NWhitney](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/NWhitney.jpg)
Nina Whitney
Postdoctoral Fellow 2020-2022; supported by a NOAA Climate and Global Change fellowship on Atlantic Meridional Overturning Circulation variability over the late Holocene using Western North Atlantic water mass proxies and numerical models
(now Assistant Professor at Western Washington University)
![Murty_Headshot Murty_Headshot](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/Murty_Headshot.jpg)
Sujata Murty
Postdoctoral Scholar 2018-2020; project on Indo-Pacific climate variability from coral proxies and high-resolution ocean models
(now Assistant Professor at SUNY Albany)
![VJohnson2 copy VJohnson2 copy](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/VJohnson2-copy.jpg)
Vincent Johnson
Summer Student Fellow 2021 (B.S. in Oceanography & Atmospheric Sciences, Oregon State University); project on Indian Ocean tropical cyclones
![BMuench BMuench](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/BMuench.png)
Bastian Münch
Guest Student 2021 (BSc Geography, Julius-Maximilians University Würzburg, Germany) sponsored by RISE; project on North Atlantic Ocean pressure and wind patterns using historic ship logbooks
(now graduate student at Boston College)
![EMeeker EMeeker](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/EMeeker.jpg)
Evan Meeker
Guest Student 2020 (Applied GIS and Spatial Analytics, Antioch University New England); project on Indian Ocean pressure and wind patterns using historic ship logbooks
(now graduate student at University of Wisconsin Madison)
![NCresswell_for_web_resized NCresswell_for_web_resized](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/NCresswell_for_web_resized.jpg)
Nathaniel Cresswell-Clay
Guest Student 2018-2020, Semester at WHOI Student 2017, (B.S. Mathematics, Tufts University); projects on frontal rainfall in Southwestern Australia; eastern ocean basin upwelling systems; Azores High variability
(now graduate student at University of Washington)
![Pfleger Pfleger](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/Pfleger.jpg)
Cali Pfleger
Guest student 2018-2019 (B.A. Geology and Environmental Studies, Cornell College); project on the Australian hydroclimatic response to volcanoes during the last millennium from stalagmites and climate models
(now graduate student at UC Santa Barbara)
![PWang_resized PWang_resized](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/PWang_resized.jpg)
Peidong Wang
Summer Student Fellow 2018 (B.S. Atmospheric & Oceanic Sciences, Mathematics, University of Wisconsin-Madison); project on the role of volcanic eruptions for North Atlantic regional hydroclimate
(now graduate student at MIT)
![ASahasrabhojanee_for_web ASahasrabhojanee_for_web](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/ASahasrabhojanee_for_web.jpg)
Adwait Sahasrabhojanee
Guest Student 2018 (M.S. Operations Research, Northeastern University); project on predicting extreme events in the water cycle
![MShankle_photo MShankle_photo](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/MShankle_photo.jpg)
Madison Shankle
Summer Student Fellow 2017 (B.S. Geology & Geophysics, Environmental Engineering, Yale University); project on the role of Indian Ocean warming for regional rainfall extremes
![SCoakley_photo SCoakley_photo](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/SCoakley_photo.jpg)
Samuel Coakley
Summer Student Fellow 2017 (B.S. Marine Science, Rutgers University); project on Southeast Asian monsoon variability in the Last Millennium Ensemble
(now Program Specialist at US CLIVAR Program Office)
![DavidSmith_photo_Resized DavidSmith_photo_Resized](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/DavidSmith_photo_Resized.jpg)
David Smith
Guest Student 2017 (B.S. Computer Science and Mathematics, Northeastern University); project on decadal predictions over the North Atlantic Region
![LHahn_final-square Lily Hahn](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2021/12/LHahn_final-square.jpg)
Lily Hahn
Summer Student Fellow 2016, Guest Student 2017 (B.S. Geology & Geophysics: Atmosphere, Ocean and Climate, Yale University); project on “Increasing Greenland melt and blocking in recent decades modulated by large-scale and regional circulation changes”
(now graduate student at University of Washington)
![ZPerez_for_web-square ZPerez_for_web-square](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/ZPerez_for_web-square.jpg)
Zoraida Perez Delgado
WHOI-SOARS Fellow 2015 (B.S. Environmental Science, Universidad Metropolitana, Puerto Rico); project on “Satellite and model analysis of coral reefs in the Western Indian Ocean from 2001 to 2007”
![SJong_for_web-square Siraput Jongaramrungruang](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2021/12/SJong_for_web-square.jpg)
Siraput Jongaramrungruang
Summer Student Fellow 2015 (BA Natural Sciences, University of Cambridge, UK); project on “Intraseasonal SST-precipitation coupling during the Indian Summer Monsoon and its modulation by the Indian Ocean Dipole”
(now graduate student at CalTech)
![Freisen_photo copy Freisen_photo copy](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/Freisen_photo-copy.jpg)
Pia Freisen
Guest student 2014 (BSc Physics of the Earth System, Christian-Albrechts-University, Kiel, Germany), sponsored by RISE; project on “Decadal variability in atmospheric blocking in the Southern Hemisphere extratropics”
(now graduate student at Monash University, Australia)
![delaCruz_photo delaCruz_photo](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/delaCruz_photo.jpg)
Gabriela de la Cruz Tello
WHOI-SOARS Fellow 2014, SOARS 2015 (B.S. Meteorology, San Jose State University); project on “The effect of changes in the Hadley Circulation on oxygen minimum zones in the ocean”
![Kulueke_photo Kulueke_photo](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/Kulueke_photo.jpg)
Marco Kulüke
Guest student 2013 (BSc Meteorology, University of Hamburg, Germany), sponsored by RISE; project on “Precipitation in the Horn of Africa linked to Indo-Pacific climate variability”
(now data manager at Deutsches Klimarechenzentrum (DKRZ), Germany)
![Hernandez_photo copy Hernandez_photo copy](https://ummenhofer.whoi.edu/wp-content/uploads/sites/47/2022/11/Hernandez_photo-copy.jpg)
Manny Hernandez
WHOI-SOARS Fellow 2013, 2014 (M.S. Geography, Texas A & M); project on “Links between regional monsoon circulation and local hydroclimate in Southeast Asia”
(now graduate student at University of North Carolina at Chapel Hill)