Manvendra K. Dubey
Document Actions
Manvendra Dubey is the Geochemistry Team Leader (Earth and Environmental Science Division) and the Climate Focus Leader (Institute of Geophysics and Planetary Physics) at University of California managed LANL where he works closely with 25 staff members, 5 postdoctoral fellows, 3 students to understand processes and couplings across the air-cloud-plant-soil-water interfaces by integrating modeling with laboratory measurements and field observations. His team has programs in global change, water and air quality, carbon management, environmental remediation, containment of radioactive waste, nuclear repositories, remote sensing, and threat reduction areas. Dr. Dubey is leading a new LDRD-DR project on "Resolving the aerosol-climate-water puzzle" that connects LANL pillar capabilities in climate modeling, satellite remote sensing, and state of the art laboratory experiments with a funding of $1.5M/yr for 3 years. He is actively researching future technologies such as hydrogen and carbon sequestration for their ability to mitigate climate change. Dr. Dubey is an Associate Editor of Geophysical Research Letters.
Dr. Dubey received a Ph.D. in chemical physics from Harvard University in 1994 where he assisted a group that established the causal link between the chlorofluorocarbons and the Antarctic ozone hole. His thesis elucidated radical-molecule reactivity and photochemistry for atmospheric applications. As a postdoctoral fellow at Harvard he measured isotope specific kinetics of the hydroxyl radical. In 1995 DOE, NASA, and NSF selected him as an Emerging Senior Scientist in Atmospheric Science. From August 94 to June 97 Dr. Dubey worked at SRI International in collaboration with LLNL on direct rate-parameter sensitivity calculations of 2-Dimensional atmospheric ozone models to evaluate their uncertainties. He contributed to the 97 NASA-JPL panel recommendations of rate parameters and the NASA assessment of atmospheric effects of stratospheric aircraft. He played an active role in the NASA assessment of the impact of SSTs on ozone. He also organized and spoke at the Nobel AAAS ozone symposium at Baltimore in 1996.
In June 1997 Dr. Dubey moved to the Chemical and Reaction Dynamics group at LANL and investigated mechanisms of heterogeneous reactions on atmospheric ices to develop reliable rate-extrapolation schemes for environmental applications. He enhanced our understanding of catalytic mechanisms of halogen activation on polar stratospheric clouds and organic uptake by cirrus clouds. In 1998 he convened and chaired a special session at the AGU fall meeting on the use of isotopes in atmospheric chemistry, climate and reaction mechanisms.
From June 1999 to July 2001 Dr. Dubey was a technical staff member in the Atmospheric and Climate Sciences group (EES-8) at LANL. Here his research focused on measurements of sulfate aerosol properties, computations of emissions from wildfires, and testing atmospheric chemistry models, and utilizing the Valles Caldera for ecosystem model validation and climate change impact assessments. In July 2001 Dr. Dubey moved to the Hydrology, Geology, and Geochemistry Group (EES-6) where he is developing a novel concept to extract carbon dioxide from air and enhancing the carbon and biogeochemistry programs. He is the lead scientist pursuing eddy flux measurements of CO2 and O2 exchange at the Valles Caldera. He has been funded by the LDRD, UC, and NMRPI programs at LANL to address these important global change science issues. He co-convened a AGU-special session on Carbon Management Technologies in May 2002 and was invited to represent LANL science in this area at a National Academies workshop in this area. He served as an expert reviewer for IPCC and the US CCSP and CCTP programs. Dr. Dubey's expertise includes both experimental and theoretical aspects of photochemistry, spectroscopy, flow-tube and molecular-beam techniques, gas phase and surface reaction mechanisms, combustion chemistry, field measurements, and atmospheric and biogeochemical models. He has published twenty papers in these fields. He nurtures strong interdisciplinary science collaborations in earth system science. He is an active member of AGU, ACS and AAAS and has published extensively in scientific journals and in public policy areas.
Publications
