CCSR - Key Persons
Job Titles:
- Postdoctoral Research Scientist
Damien is interested in the modeling of physical processes within the climate system, with a focus on the polar regions. After working on the rheological modeling of sea ice at high resolution, he now works on the interactions between the ocean and the Greenland and Antarctic ice shelves in the NASA GISS climate model. Damien got his Ph.D. at the Alfred Wegener Institute and the University of Bremen in Germany before completing a PostDoc at McGill University in Montréal.
Job Titles:
- Researcher
- Postdoctoral Research Scientist, Ctr Climate Systems Research
Dr. Assia Arouf is currently a postdoctoral researcher at the Center for Climate Systems Research at Columbia University (New York, NY). Assia's postdoctoral research is focused on studying the low-level cloud feedbacks using CALIPSO and CloudSat observations and evaluating the representation of these cloud feedbacks in climate models. She did her master (2017-2019) on Physical Methods in Remote Sensing at Institut de Physique du Globe de Paris (IPGP) and Université Paris Cité in France. In 2019, she started her PhD in Laboratoire de Météorologie Dynamique (LMD) and Sorbonne University (in France). Her thesis work focused on developing a new observational-derived product of surface longwave cloud radiative effect using space lidar observation (CALIPSO) and radiative transfer simulations.
Job Titles:
- Associate
- Research Scientist
Dr. Gregory Cesana is currently an associate research scientist at the Center for Climate Systems Research at Columbia University (New York, NY). He has received a B.S (2005) and M.Sc (2007) in Atmosphere/Ocean/Soil remote sensing (environmental sciences) from the University of Toulon. From 2008 to 2010, he pursued his professional career in the climate research field as a research engineer at the Laboratoire de Météorologie Dynamique (LMD, École Polytechnique) in Paris, France, where he developed cloud datasets using satellite observations for climate model evaluation. In January 2011, he became a Ph.D student at Sorbonne Université (Paris, France, formerly known as Université Pierre et Marie Curie, Paris VI), during which he used CALIPSO satellite observations to characterize cloud and radiation biases in climate models. After graduating in December 2013, he then moved to the California Institute of Technology (Caltech) and NASA Jet Propulsion Laboratory (Pasadena, CA) for a postdoctoral research scientist position from January 2014 to March 2017. There, he extended his knowledge of satellite data for model evaluation using other A-train constellation instruments (CloudSat's cloud profiling radar, Aqua's CERES instrument among others). Since he joined Columbia University in March 2017, Dr. Cesana has worked closely with the modeling team of the NASA Goddard Institute for Space Studies (GISS) to help them improve the representation of cloud-climate processes in the GISS model using satellite observations.
Dr. Cesana's research is focused on improving our understanding of cloud processes and cloud-radiation interactions in the past, present and future climate. In particular, he's interested in the modifications that clouds and precipitation undergo in response to anthropogenically induced energy imbalances, commonly referred to as "cloud feedbacks". Reducing the uncertainty caused by these feedbacks is critical to predict the future climate change. To tackle this problem, he currently works on the development and the use of satellite observations to evaluate the representation of cloud-radiation feedbacks in climate models. He specializes in active sensor satellite observations from a-train CALIPSO and CloudSat satellites, which give access to unprecedented cloud-related information such as the detailed vertical structure of clouds and their water phase partitioning, as well as their precise spatial distribution over continents and polar regions. These unique observations bring new perspectives and open the path to new breakthroughs in the understanding of the climate system.
Job Titles:
- Executive Officer
- Senior Staff Associate I
Dr. Hannah Liddy is the executive officer of the global research project AIMES - Analysis, Integration and Modeling of the Earth System. AIMES is a core project of Future Earth and facilitates multidisciplinary and multinational activities aimed at addressing integrative research that is beyond the scope of individual scientists or institutes. Current focal areas include quantifying and understanding the consequences and feedbacks of human activities on biogeochemical cycles and the climate system past and present, development of Earth system models, global climate and land model benchmarking, and facilitating and encouraging a Young Scholar's Network that supports interaction between natural and social sciences as well as the humanities. She completed her Ph.D. in earth science with a focus in paleoclimate and isotope geochemistry at the University of Southern California.
Job Titles:
- Research Scientist
- Postdoctoral Research Scientist
Dr. Jose Rafael Guarin is a postdoctoral research scientist at the Center for Climate Systems Research at Columbia University. His research discipline is in crop modeling, with a focus of using crop models to simulate interactions of extreme weather events and abiotic stresses on crop development for improved agricultural decision making. He is currently working on incorporating the responses of ozone stress and diffuse radiation into the pDSSAT and LPJml models for improved global agricultural modeling. His expertise is in both the technical aspects of the crop models and the scientific aspects of the agrometeorological interactions within the project. His previous research projects focused on the improvement of sustainable wheat cultivation and global food security in collaboration with the Agricultural Model Intercomparison and Improvement Project (AgMIP), the International Maize and Wheat Improvement Center (CIMMYT), the International Wheat Yield Partnership (IWYP), the NASA AECOM Air Revitalization Lab, and the Princeton Environmental Institute. He received his Doctor of Philosophy in Agricultural and Biological Engineering from the University of Florida in 2018.
Job Titles:
- Earth Systems Scientist
- Senior Staff Associate III
Dr. Linda Sohl is an Earth systems scientist, with a background in sedimentary geology and paleoclimatology. Her research focuses on using NASA's global climate model to expand upon our knowledge of past habitable phases of Earth and Mars as inferred from the geologic record. She is especially interested in understanding the climate processes of extreme cold environments like Snowball Earth, identifying the impacts of those conditions on the evolution and distribution of more complex life, and figuring out what all that might mean for the existence of life on worlds on the outer edges of their star system's habitable zone.
Her research interests lie in trying to understand the global climatic conditions that may have had an impact on, and/or evolved in conjunction with, life on this planet. That effort requires a combination of geological data analysis and Global Climate Model (GCM) output, both so that the climate simulations are as realistic as we can make them, and so that the model output is better capable of casting light on information that rarely or never gets preserved in the rock record.
Job Titles:
- Associate
- Research Scientist
- Associate Research Scientist for the Center for Climate Systems Research in the Earth Institute
- Scientist at Columbia University
Dr. Mark Chandler is a climate scientist at Columbia University in New York City and has worked in NASA's global climate modeling research group at the Goddard Institute for Space Studies (NASA/GISS) since 1987. The main focus of his research is in the use of computer climate models to study Earth's past climates. He is particularly interested in simulating extreme climates in Earth history and using the findings to help better understand the potential impacts of future climate change and the potential habitability of planets in other solar systems. Dr. Chandler is also the director of the Educational Global Climate Modeling project (EdGCM), an education and outreach program that produces software and materials to make NASA's global climate models more accessible to educators, students and other researchers.
Job Titles:
- Associate
- Research Scientist
- Associate Research Scientist in the Center for Climate Systems Research in the Earth Institute
Dr. Olivia Clifton is an Associate Research Scientist at the Center for Climate Systems Research at the Columbia Climate School. Dr. Clifton sits at NASA Goddard Institute of Space Studies (GISS) in New York, New York. Dr. Clifton's research is on chemistry-climate interactions, with past focus on the intersections among the land surface, meteorology, and atmospheric chemistry. Most of Dr. Clifton's work examines the dry deposition of reactive gases and aerosols relevant for air pollution, climate, and ecosystems. Dr. Clifton uses a hierarchy of models, including global Earth System models and large eddy simulation, together with multiscale observations, including many eddy covariance flux datasets, to advance understanding of the key processes related to land-atmosphere exchanges and impacts on trends and variability in short-lived climate forcers and air pollutants. Dr. Clifton was a NASA Postdoctoral Program (NPP) Postdoctoral Fellow at GISS from 2021 to 2023 and an Advanced Study Program (ASP) Postdoctoral Fellow at the National Center for Atmospheric Research in Boulder, Colorado from 2018 and 2021. Dr. Clifton received her PhD in 2018 from the Department of Earth and Environmental Sciences at Columbia University in the City of New York where she was an NSF Graduate Research Fellow and worked with Arlene Fiore. In 2012, Dr. Clifton received her BS in Mathematics from University of Wisconsin-Madison.
Job Titles:
- Associate of the Agricultural Model Intercomparison
- Senior Staff Associate I
- Staff Associate II
Erik Mencos Contreras serves as Staff Associate of the Agricultural Model Intercomparison and Improvement Program (AgMIP). He supports the AgMIP Coordination Unit by working collaboratively with program managers, researchers, Columbia University finance officers, and sponsor agency officials on the overall research coordination and financial management of the program. Erik assists AgMIP research output by supporting the writing and editing of multi-author, peer-reviewed papers, as well as white papers, concept notes, and reports. He was Chapter Scientist and Contributing Author for the Food Security chapter in the Intergovernmental Panel on Climate Change (IPCC) Special Report on Climate Change and Land. He also supports the organization and execution of multi-disciplinary workshops worldwide. He liaises with international partners at all levels of the program, including Regional Research Teams in Sub-Saharan Africa and South Asia; Research Leaders in the U.S., Europe, and Australia; and the AgMIP Steering Council, comprised of internationally renowned experts in the field. Erik has a Masters in Climate and Society from Columbia University and a Bachelors in Chemical Engineering from the Tecnológico de Monterrey (ITESM) in Mexico.
Job Titles:
- Associate
- Research Scientist
- Postdoctoral Research Scientist
Florian Tornow is an Associate Research Scientist who works on the Aerosol Cloud Meteorology Interactions Over the Western Atlantic Experiment (ACTIVATE) NASA Earth Venture program, which aims towards a better understanding of aerosol-cloud interactions, through the use of measurements obtained from an aircraft campaign. Before joining CCSR, he graduated with a PhD in Meteorology and worked as a Research Assistant for the ESA (European Space Agency) project CLARA (Clouds, Aerosol and Radiation Assessment Products for Earth-CARE) at the Institute for Space Sciences at Freie Universität Berlin.
Job Titles:
- Associate
- Research Scientist
Dr. Aleinov specializes in systems analysis, dynamic vegetation modeling, and land surface modeling with a particular focus on the NASA GISS global climate model (ModelE).
Job Titles:
- Associate
- Research Scientist
I am a climate change scientist and crop modeler. I study food systems and global food security at the NASA Goddard Institute for Space Studies, The Earth Institute at Columbia University, and the Potsdam Institute for Climate Impact Research (PIK). As a central initiative within AgMIP, I co-lead AgGRID and the Global Gridded Crop Model Intercomparison (GGCMI), and I am the coordinator of the agriculture sector in ISIMIP, a cross-sectoral model intercomparison project.
Jonathan is a Research Scientist and has worked at Center for Climate Systems Research since 2018. He works on modeling, remote sensing, and measuring of trace gases, with a particular focus on emissions from soils and biomass burning and their implications for atmospheric composition, climate, and human well-being.
Jonathan earned his Ph.D. in 2009 from Stony Brook University. Prior to becoming a Research Scientist at CCSR, Jonathan was an Earth Institute Postdoctoral Fellow and Associate Research Scientist at the Earth Institute's Agriculture and Food Security Center (2009-2014), an Associate Editor at Nature Geoscience (2014-2017), a Research Associate at Vrije Universiteit Amsterdam (2017-2018), and a Senior Fellow in the CCSR Postdoctoral Program (2018-2021).
Job Titles:
- Associate
- Research Scientist
Dr. Romanski's research focuses on surface-atmosphere exchanges of heat, moisture and carbon from observations and climate models, surface-atmosphere flux process modeling, and on modeling methane emission from wetlands and lakes. She has conducted analyses of feedbacks between surface turbulent heat flux and atmospheric circulation, and investigated controls of surface latent and sensible heat fluxes by mid-latitude cyclones and by variability of large scale atmospheric circulation features and teleconnections. Dr. Romanski is interested in the influence of atmospheric dynamics on surface-atmosphere coupling on timescales from synoptic to interannual, and on geophysical controls of wetland ecosystem distribution and methane flux variability.
Job Titles:
- Research Scientist
- Postdoctoral Research Scientist
- Postdoctoral Research Scientist, Ctr Climate Systems Research
Dr. Juliet Pilewskie is currently a postdoctoral research scientist at the Center for Climate Systems Research at Columbia University (New York, NY). Her current work uses CloudSat/CALIPSO and CERES satellite observations to analyze mid- and high cloud feedbacks to better constrain climate model output. Dr. Pilewskie received an M.S. (2019) and PhD (2023) from the Department of Atmospheric and Oceanic Sciences at the University of Wisconsin-Madison. During her graduate studies, she analyzed convective storm system properties to understand their present-day contributions to the Earth's energy budget and water cycle. Twice-daily measurements from the A-Train satellite constellation were used to capture cloud, precipitation, and radiative effects of convective storm systems on a cloud object scale, and were supplemented with geostationary satellite observations and reanalyses to provide horizontal and temporal context to the storm features in differing environments. She holds a B.A. (2017) in physics from the University of Colorado-Boulder.
Job Titles:
- Associate
- Research Scientist
- Associate Research Scientist at Columbia University 's
Dr. Sinclair is an Associate Research Scientist at Columbia University's Center for Climate Systems Research (CCSR). His research interests are motivated by the question: what are the primary causes of uncertainty in Earth's energy budget, and how do we go about reducing them? Clouds play a major role in the energy budget, reflecting incoming shortwave and absorbing outgoing longwave radiation. His research focuses on studying the dominant cloud properties and drivers that affect this radiative balance with the goal of being able to better understand relationships governing these properties. His research uses theory, observational analysis, radiative transfer modeling as well as reanalysis studies. His current research focuses on remote sensing of cloud micro- and macro-physical parameters using multi-angular multi-wavelength polarimetric observations in conjunction with other instruments.
Prior to joining CCSR, Dr. Sinclair held a NASA Postdoctoral Program Fellowship at the NASA Goddard Institute for Space Studies (GISS). He completed a Ph.D. at Columbia University's Department of Earth and Environmental Engineering where he held a Natural Sciences and Engineering Research Council of Canada Postgraduate Doctoral Scholarship. He also completed a master's degree in Columbia University's Department of Earth and Environmental Science. He obtained a Bachelor of Applied Science with Specialized Honors in Space Engineering from York University, where he specialized in atmospheric science and spacecraft optical instrument design.
Job Titles:
- Associate
- Research Scientist
- Associate Research Scientist at Columbia University 's
Dr. Mezuman is a Associate Research Scientist at Columbia University's Center for Climate Systems Research. She applies physical and statistical models to study human-natural interactions. Currently, she is the Human Migration Lead in the World Modelers project, where she utilizes agent based models to study the sensitivity of migrant flows to environmental shocks and political unrest. The objective of her research is to inform scocio-economic policy and decision making.
Dr. Mezuman collaborates with the NASA Goddard Institute for Space Studies (GISS) where she takes part in the development of ModelE Earth System Model and its applications at the nexus of the atmosphere, biosphere and anthropospere. Specifically, she is interested in global fire activity, health impacts of air pollution, and the full life cycle of food production.
Dr. Mezuman holds a PhD from a joint program by NASA GISS and Columbia University's Department of Earth and Environmental Sciences. As part of her PhD she developed pyrE, the NASA GISS interactive fire-climate module, and contributed to the biomass burning aerosol intercomparison (AeroCom) project.
Job Titles:
- Research Associate
- Staff Associate III
Kevin Karl is a Research Associate at the Center for Climate Systems Research, focusing on the intersection of food systems and climate change. He also works as an environmental statistics consultant to the Food and Agriculture Organization of the United Nations. He received his Master of Public Administration degree from Columbia University's School of International and Public Affairs, with a concentration in Urban and Social Policy.
Prior to joining CCSR, Mr. Karl was a Research Associate at the Center on Global Energy Policy, where he focused on policy solutions that address pressing issues across food systems, energy systems and climate change. Previously, he was an Associate with the Rockefeller Foundation's Food Initiative, where he worked to advance food-based interventions in American healthcare systems. He also co-founded GreenItUp, a start-up that informs online grocery shoppers about the greenhouse gas emissions associated with their individual food purchases.
Mr. Karl has spent the bulk of his career working as a farmer. Most recently, he launched an urban educational farm for a non-profit organization called Growing Gardens. Prior to his work addressing urban food security, he started two farming businesses- one in Canada and one in the U.S.- and is passionate about ecologically regenerative agricultural practices.
Job Titles:
- Associate
- Research Scientist
Dr. Inoue is an Associate Research Scientist at Center for Climate Systems Research (CCSR) at the Columbia Climate School of Columbia University. His research focuses on the weather and climate features associated with tropical moist convection over a wide range of spectra from an individual-convective scale to planetary and global scales. His research uses theories, observational data including satellite observations, and general circulation models for understanding the interactions between large-scale environment and moist convection.
Prior to joining CCSR in 2022, Dr. Inoue worked at the NASA Goddard Institute for Space Studies (GISS) as a NASA Postdoctoral Program Fellow, and at the Lamont-Doherty Earth Observatory of Columbia University as an adjunct postdoctoral researcher from 2018 to 2022. He also worked at the NOAA Geophysical Fluid Dynamics Laboratory (GFDL) as a postdoctoral researcher from 2016 to 2018. He completed his Ph.D. in the Department of Atmospheric and Oceanic Sciences at the University of Wisconsin-Madison in 2016.
Job Titles:
- Senior Staff Associate II
- Senior Staff Associate II, Center for Climate Systems Research in the Earth Institute
Dr. Nazarenko joined CCSR in 1997 and specializes in climate system simulations. She examines climate response under the forcings of changing well-mixed greenhouse gases, ozone, stratospheric aerosols, solar irradiance, soot effect on snow and ice albedo, land use changes, and tropospheric aerosols with their parameterized. Also she examines the simulated, indirect effect on clouds based on empirical evidence of aerosols on cloud droplet number concentration; global climate feedbacks under the different combinations of climate forcings; prediction of future climate for the conventional increase CO 2 in the atmosphere and for alternative Representative Concentration Pathways scenarios.
Job Titles:
- Associate
- Research Scientist
Lettie is broadly interested in Earth's climate system, with a focus on the polar regions. Her research is motivated by a desire to understand the physics of coupled interactions between ice and climate. Lettie typically works with climate models of varying levels of complexity, in combination with observations, aiming to improve climate projections. She has a PhD from Victoria University of Wellington and completed her postdoc at the University of Washington in Seattle.
Job Titles:
- Associate
- Research Scientist
- Economist
- Member of CCRUN
Malgosia Madajewicz is an economist with research expertise in adaptation to climate change, economic development, and evaluation of the effectiveness of programs, policies, and adaptation strategies, including assessing the value of climate information. Much of her research has focused on the role that institutions and networks play in influencing the effectiveness of policies and strategies, and in the use and value of climate information. She is a member of the research team that comprises the Consortium for Climate Risk in the Urban Northeast (CCRUN), which is a NOAA-funded RISA (Regional Integrated Science and Assessment). She is currently serving as an external member on the Community-Based Adaptation working group of the New York City Panel on Climate Change. She holds a PhD in economics from Harvard University and has previously served as an Assistant Professor in the Department of Economics and the School of International and Public Affairs at Columbia University.
As a member of CCRUN, Madajewicz is investigating approaches to improving the adaptation of residents in urban neighborhoods to coastal flooding, and ways to improve vulnerability assessments. More broadly, she is responsible for evaluating the impacts that CCRUN achieves through the team's collaborative development of climate information with stakeholders. She is working on improving the data available for assessing impacts of winter storms. She is collaborating with a team at the International Research Institute for Climate and Society (IRI) on a project that is providing and assessing the value of climate information for coffee growers in Jamaica. She is working with another team at IRI on developing a process for evaluating the progress of national climate information services in Africa over time. She is collaborating with the Tropical Agriculture team at the Earth Institute on understanding the value of soil information for smallholder farmers in Tanzania. She just completed her second evaluation of an Oxfam America program that takes an integrated risk management approach, including weather index insurance, to improve livelihoods of smallholder farmers in Ethiopia.
Job Titles:
- Associate
- Research Scientist
Job Titles:
- Research Scientist
- Postdoctoral Research Scientist
Mazen is a postdoctoral research scientist at the Center for Climate Systems Research at Columbia University. His area of focus is environmental fluid mechanics. His previous research project focused on understanding the different mechanisms that governs sucrose transport within one of the plant's hydraulic systems, the phloem. His current focus is studying global forest dynamics in the changing climate and their feedback to the earth system.
Job Titles:
- Postdoctoral Research Scientist
Dr. Stanford is a Postdoctoral Research Scientist in CCSR. He received his M.S. (2016) and Ph.D. (2020) in Atmospheric Sciences from the University of Utah under the direction of Dr. Adam Varble. Dr. Stanford's M.S. and Ph.D. work focused heavily at the intersection of observations and numerical modeling, using high-quality in situ and remote sensing platforms to guide the development and improvement of parameterizations within convection-permitting models. His work has primarily focused on evaluating and improving the representation of deep moist convective processes in kilometer-scale simulations with an emphasis on ice microphysics and convective dynamics. More broadly, Dr. Stanford's research interests involve using observations to identify and improve cloud process representation in numerical models across a range of spatiotemporal scales spanning those relevant to individual ice crystals up to the climate system. While at CCSR, Dr. Stanford is expanding his research area to encompass shallow cloud systems with an ultimate goal of improving cloud-climate feedbacks in the GISS climate model.
Job Titles:
- Director
- Research Scientist
- Senior Research Scientist
- Senior Research Scientist in the
Senior Research Scientist in the Center for Climate Systems Research in the Earth Institute; Director in the Center for Climate Systems Research in the Earth Institute, Ctr Climate Systems Research
Dr. Puma currently serves as the Director of the Center for Climate Systems Research, a part of the Columbia Climate School at Columbia University, which is co-located with the NASA Goddard Institute for Space Studies. The center, comprising over 40 scientists and staff, collaborates closely with NASA on climate science, exoplanet research, and climate impact studies. As a Senior Research Scientist, Dr. Puma's primary research focuses on global food security, human migration, and hydro-climatology. His particular interest lies in comprehending the vulnerability of complex socioeconomic systems, specifically the global food system, to unpredictable events such as megadroughts, volcanic eruptions, conflicts, as well as governmental and market failures. By examining the trade-offs and synergies between efficiency and resilience, his goal is to identify strategies that promote the long-term sustainability and stability of these systems, fostering a balanced, efficient, and resilient global food system. Furthermore, Dr. Puma actively contributes to the advancement of theories and quantitative modeling pertaining to human migration, with a specific emphasis on understanding its drivers and impacts in relation to food insecurity. His work delves into the intricate mechanisms that govern the behavior of these systems, providing valuable insights for policy-making and decision-making processes. In an integrated and comprehensive approach, he addresses the challenges of global food security and human migration. Dr. Puma has secured funding from various institutions, including NASA, the National Science Foundation, the European Commission, the US Department of Defense, DARPA, and the United Nations Development Programme.
Job Titles:
- Research Scientist
- Postdoctoral Research Scientist
Mohammad H. Erfani is a postdoctoral research scientist at the Center for Climate Systems Research (CCSR) at Columbia University. His research focuses on integrating Machine Learning models into Hydrology and Earth System Science. Before joining CCSR, he was involved in research on flood detection and early warning systems using Computer Vision and Machine Learning. Mohammad holds a Ph.D. in Civil and Environmental Engineering with a specialization in Water Resources Management from the University of South Carolina
Job Titles:
- Staff Associate II in the Center for Climate Systems Research in the Earth Institute
Natalie Kozlowski is a Staff Associate II for the Climate Impacts Group at the Center for Climate Systems Research. She serves as a scientific communicator and assists with the creation of visual representations to communicate key research findings to a variety of audiences. With a background in both academic research and public communications, Natalie is passionate about bridging the gap between climate research and public understanding and engagement.
Before joining CCSR, Natalie worked for Clark Conservation District in southwestern Washington where she acted as a communications coordinator between the District's technical programs, such as livestock management and riparian habitat conservation, and the general public. Natalie received her Master of Science from the University of Oregon in Geography and Paleoecology, where she researched vegetation structure and fire frequency in the Puget Lowland throughout the Holocene. She holds a Bachelor of Arts from Colgate University in Environmental Geology where she also played Division I soccer.
Job Titles:
- Research Associate
- Staff Associate II in the Center for Climate Systems Research in the Earth Institute
Nick Pelaccio is a Research Associate at the Center for Climate Systems Research at Columbia University. The bulk of his work involves working with GISS Physical Research Scientist Dr. Allegra N. LeGrande, using the NASA GISS climate model (modelE) on multiple projects. These projects include running the climate model under different paleoclimate scenarios, studying the effects of volcanoes under different tuning parameters, understanding the health and importance of marine life to human societies throughout history (4-oceans), studying the origin of atmospheric rivers, and more. He received his Masters degree in Climate and Society from Columbia University.
Prior to joining CCSR, Nick worked at the International Research Institute for Climate and Society at the Lamont Doherty Earth Observatory, studying the effects of climate change on Ethiopian coffee farmers and production, as well as extreme temperature and precipitation projections in Ethiopia.
Before working in climate research, Nick worked as an actor, having received his BFA in Musical Theatre from the Cincinnati College Conservatory of Music (CCM). He performed in the national tour of Rodgers and Hammerstein's Cinderella, as well as various other regional theatres around the US.
Job Titles:
- Staff Associate I, Ctr Climate Systems Research
Nicolas Leitmann-Niimi is a Staff Associate for the Center for Climate Systems Research at Columbia University. He works on projects with Gregory Elsaesser related to the understanding of convective processes. His interests include data visualization, satellite remote sensing, and atmospheric modeling. Prior to working at CCSR, Nick completed his M.S. in Atmospheric Science at Colorado State University.
Job Titles:
- Postdoctoral Research Scientist
Ram Singh is working as Postdoctoral Research Scientist on the project "Yale Nile Initiative," which aims to investigate the impact of large volcanic eruption on the Nile River Flooding in the historical aspects.
His research interests are regional and global patterns of climate changes, earth system modeling and climate variability, hydrological cycle and climate feedbacks mechanism and human impact on climate.
Before joining CCSR, he graduated from the Indian Institute of Technology in Delhi, India under the supervision of Professor Krishna AchutaRao. His doctoral research was focused on exploring and quantifying the various sources of uncertainty in climate change projections over India.
Job Titles:
- Associate
- Research Scientist
Job Titles:
- Associate
- Research Scientist
Job Titles:
- Postdoctoral Research Scientist
Job Titles:
- Postdoctoral Research Scientist