Contacts  |  Forms  |  Site Map  |  Home  |  NASA.gov

Meet the Fellows

Current NPP Fellows through September 30, 2009

NASA Center NPP Fellow Research Proposal Title NPP Advisor
NAI Abramov, Oleg Habitability of Early Earth: Thermal Modeling of the Lithosphere During the Late Heavy Bombardment Stephen Mojzsis
JPL Allwood, Abigail Using the 3.5 billion-year terrestrial geologic record of sulfate microbialites to inform the search for life on Mars Isik Kanik
GSFC Atanassova, Martina Development and Optimization of the Next Generation X-ray Optics William Zhang
JPL Aubrey, Andrew Investigation into the kinetics of surface bound organics to Mars Analog Minerals Frank Grunthaner
GSFC Bailey, Catherine Development of an Anti-coincidence Detector for the X-ray Microcalorimeter Spectrometer onboard the International X-ray Observatory
Caroline Kilbourne
JPL Baldridge, Alice Remote Sensing Characterization of Terrestrial Analog Sites for Aqueous Planetary Environments Simon Hook
GSFC Barton, Jonathan (Jon) Combining Spaceborne Lidar and Multispectral Imagery to Map Global Water Turbidity Michael Jasinski
GSFC Basu-Zych, Antara Investigating Local Lyman Break Analogs
Ann Cardiff
GSFC/GISS Bauer, Michael Looking Both Ways: Taking Stock of Climate Model Uncertainties From a Meteorological Perspective David Rind
ARC Bera, Partha Theoretical Spectroscopy Applied to Astrochemistry and Atmospheric Chemistry Timothy Lee
JPL Berge, Joel Weak gravitational lensing as a probe of dark matter and dark energy Jason Rhodes
GSFC Bodewits, Dennis Probing the interaction between young stars and their disks Michael J. Mumma
ARC Boersma, Christaan Analyzing  Astronomical Spectra from 2 to 2000 Microns With the Full Power of the NASA Ames PAH IR Spectroscopic Database
Louis J. Allamandola
NAI Bower, Dina Experimental investigations on the effects of diagenesis on the formation of Fe,Ti-oxides (pseudorutile) in microfossils: using minerals as biosignatures in ancient rocks Andrew Steele
NAI Boyd, Eric Molecular Characterization of Hydrogenase Genes in Deeply-Branching Lineages: Origin and Evolution of Primordial Iron-Sulfur Biocatalysts
John Peters
GSFC Breech, Ben Improving Solar Wind Modeling Through Spacecraft Observations, Simulations and Theoretical analysis Melvyn Goldstein
GRC Bruna, Dario A New Methodology for the Design Optimization of Higher-Performance Multistage Core Compressors Anthony Strazisar
JPL Bueno-Lopez, Juan A Quasiparticle-Poisoning Detector Pierre Echternach
GSFC Buzulukova, Natalia Substorm-dependent phenomena in the inner Earth magnetosphere and relations between them Thomas E. Moore
ARC Cahoy, Kerri Exoplanet Science and Technology Development Thomas P. Greene
GSFC Callahan, Michael    A search for nitrogen heterocyclic molecules in meteorites and simulated cometary ices Jason Dworkin
ARC Cardace, Dawn Spatial-temporal Investigation of Serpentinizing Fluids: using microbiology, geochemistry, and thermodynamics to identify organisms, metabolisms, and extraterrestrial habitat Tori Moehler
JPL Chembo, Yanne Development of Microwave Photonic Oscillators Using Optical Frequency Combs Generated with Monolithic Micro-resonators
Nan Yu
ARC Chittenden, Julie Improved understanding of Martian gully features through laboratory experiments and spacecraft data analysis Jennifer Heldmann
JPL Choukroun, Mathieu Experimental study of planetary ices rheology - Implications on internal dynamics and cryovolcanism of icy moons Christophe Sotin
NAI Claire, Mark Biogenic Sulfur – from biospheres to biosignatures Jim Kasting
NAI Cleaves, Henderson A Search for Potentially Replicable Prebiotic Molecules
George Cody
JPL Congdon, Arthur Probing Dark Matter Substructure and Galaxy Clustering with Statistical Gravitational Lensing Leonidas Moustakas
ARC Contreras, Cesar Laboratory Investigation of Interstellar PAHs and Small Carbon Grains (nanoclusters) Farid Salama
GSFC Currie, Thayne Spectroscopy and Direct Imaging of Debris Disks and Massive Extrasolar Planets Marc Kuchner
JPL de Vine, Glenn Developing interferometric wavefront sensing and measurement of non-reciprocal phase noise through optical fibers for LISA William Klipstein
GSFC Debes, John A Study of Circumstellar Material From the Stellar Nursery to the Stellar Graveyard Marc Kuchner
GSFC Dirisu, Afusat Efforts toward reducing the uncertainty in the Raman cross-section ratio for absolute calibration of NDACC water vapor Lidars David Whiteman
GSFC Eckart, Megan Toward Future X-ray Spectral Imagers: Detailed Study of Thermalization in Superconducting Absorbers for Large Imaging Arrays  Richard L. Kelley
JPL Edmondson, Justin The Thermodynamics and Energy Transport of 3-Dimensional, MHD, Interchange Reconnection Marco Velli
JPL Fahnestock, Eugene Spacecraft Radio Tracking Data and Radar Exploration of Planetary, Satellite, and Small Body Gravity Fields and Rotational Dynamics
Donald Yeomans
LaRC Faller II, Kenneth High Fidelity Modeling for Simulation of Aircraft Flyover Noise Stephen Rizzi
JPL Favata, Marc LISA Science and Data Analysis: Modeling Merging Black Holes, Extreme-Mass-Ratio Inspirals and the Non-linear Gravitational-wave Memory Curt Cutler
LaRC Fernandez Sanginez, José  E Region IRI model corrections using TIMED-SABER data on magnetic storm periods Christopher Mertens
JPL Flandes Mendoza, Jose    Small particles and dust in Saturn’s rings: Physical characteristics and dynamics inferred from Cassini remote sensing and dust measurements Linda L. Spilker
ARC Fleming, Erich Biogeochemical Cycles Brad Bebout
JPL Fletcher, Leigh Outer Planet Atmospheres: Dynamics, Structure and Composition of Jupiter and Saturn from Cassini/CIRS and Ground-Based Observations Glenn S. Orton
JPL Garofalo, David Relativistic Black Hole Astrophysics David Meier
ARC Gayon, Julie Formation of Habitable Planets Jack Lissauer
GSFC Glocer, Alex Radiation Belt Enhancement During Geomagnetic Storms Mei-Ching Fok
ARC Goldblatt, Colin Biogeochemical modelling global redox and atmospheric evolution: informing the search for inhabited planets Kevin Zahnle
ARC Gonzalez-Fairen, Alberto Theoretical and Experimental Studies of the Martian Environment, Impact Assessment for Future Mars Missions Christopher P. McKay
LaRC Gronoff, Guillaume Modelling Martian thermospheric/ionospheric emissions for a better description of the upper atmosphere Christopher Mertens
NAI Gupta, Sanchayan (Neal) Polymeric Biosignatures in Organismic Fossils and Environmental Controls on Their Preservation Roger Summons
GSFC Guzman Cervantes, Felipe Spatially resolving wavefront imaging detector for high-precision characterization of optical systems and components
Jeffrey Livas
JPL Hamer, Paul Investigation of Processes Controlling the Global Distribution of Ozone Using Observations from the Tropospheric Emission Spectrometer and Aircraft in Conjunction with 4D-Variational Data Assimilation Kevin Bowman
GSFC Hewitt, John (Jack) High Energy Studies of Interacting Supernova Remnants
Robert Petre
GSFC Hinderks, James  Probing Inflation with CMB Polarization Alan Kogut
NAI Horikawa, Daiki Tolerance of tardigrades to extremes: Implications for the existence of multicellular organisms in extraterrestrial environments Lynn Rothschild
ARC Huang, Shengli Coupling Remotely Sensed Post-Fire Vegetation Structure with a Biogeochemical Ecosystem Model Christopher Potter
GSFC Hurwitz, Margaret (Maggie) Toward an Improved Understanding of Stratospheric Polar Vortex Dynamics Paul Newman
MSFC Ikhsanov, Nazar Modeling of Accretion in Long-period X-ray Pulsars Ron Elsner
GSFC Iro, Nicolas Optical and Infrared Detection and Characterization of Extrasolar Planets Leo D. Deming
GSFC Jackson, Brian The Effects of Tides on Rocky Exoplanets
Leo D. Deming
JPL Jacovi, Ronen Radiation processing of organics in ices - outer solar system applications Murthy Gudpati
GSFC Jethava, Nikhil Development and commissioning of Superconducting Transition Edge Sensors  for Sub-millimeter and Far-Infrared astronomical experiments
Dominic Benford
NAI Jones, Brant Exploring the Astrobiological Significance of Ices of  Kuiper Belt Objects
Ralf Kaiser
LaRC Josset, Damien Improving analysis capabilities in space remote sensing using surface information from combined active and passive measurements
Chip Trepte
GSFC Juett, Adrienne Understanding the Emission Processes in Low Mass X-ray Binaries Nicholas White
JPL Jullo, Eric High Resolution Dark Matter Mapping of the COSMOS field with Gravitational Lensing Jason Rhodes
ARC Kacenelenbogen, Meloe Combination of Space-Borne Sensor(s) and 3-D Aerosol Medels to Assess Global Daily Near-Surface Air Quality, Aerosol Emission Sources and Health Effects Jens Redemann
JPL Kauffmann, Jens Cluster-forming Clouds of Low and High Mass Di Li
MSFC Khan, Gufran Fabrication and Characterization of Non-Conventional Optical Surfaces for Large X-ray Optics Mikhail Gubarev
GSFC Kilper, Gary Building a Complete Picture of Solar Prominence Eruptions While Improving Spectral Diagnostics
Joseph Davila
GRC Kim, Hyoung-Jin Multidisciplinary Design Optimization for Aeropropulsion Meng-Sing Liou
JPL Kim, Joo Hyeon Radiative Transfer Model for Planetary Atmospheres: Vertical structure and line identifications of emissions from high latitudes of Jupiter and Saturn Kevin H. Baines
GSFC/GISS Kim, Yeonjoo Role of Phenology in Coupled Vegetation-Climate at Seasonal to Decadal Timescales in Ent DGTEM
Nancy Kiang
GSFC Kinzer, Raymond (Robin) Evolution of the Optical Properties of Astronomical Silicates Stephen Rinehart
GSFC Kirschbaum, Dalia Ensemble Landslide Forecasting System Christa Peters-Lidard
GSFC Klenzing, Jeffrey Accurate determination of electric fields and thermal plasma drifts in the ionosphere including a detailed comparative study with in-situ measurements from the C/NOFS satellite
Douglas Rowland
GSFC Koutroumpa, Dimitra Extracting the heliospheric Solar Wind Charge-eXchange component from the diffuse Soft X-Ray Background: preparing for the Spectrum X-Gamma mission. Steven Snowden
JPL Kubar, Terence Toward a Better Understanding of Tropical High Thin Clouds, Vertical Cloud Structure and Precipitation Relationships, Vertical Modes of Convection, and Land/Sea Contrasts of Convection Duane E. Waliser
GRC Kumano, Takayasu Multidisciplinary Design Optimization for Turbine Blade of Supersonic Propulsion System
Meng-Sing Liou
GSFC Kurum, Mehmet Radar Scaling for Correcting Forest Canopy Effects on the Soil Moisture Retrievals in the View of Future Microwave Spaceborne Missions
Christa Peters-Lidard
ARC Lachaud, Jean   Direct numerical simulation of Ablation : near-wall phenomenological models Nagi Mansour
JPL Landerer, Felix Arctic Ocean freshening: Using GRACE and ECCO2 to determine impacts on the large-scale ocean circulation and sea ice formation Jean Dickey
GSFC Lang, Ryan Preparing for the Era of Gravitational Wave Astronomy
John Baker
JPL Lasne, Yannick Characterization of Microwave Dielectric Constant Properties of Natural Media for Interpretation of Remote Sensing Signatures Kyle McDonald
JPL Le Gall-Gilabert, Alice Mapping the microwave thermal emission from Titan’s surface using the Cassini Radar Radiometer - Development of an accurate model to assess the physical and chemical properties of Titan’s surface Michael Janssen
ARC Leaman, Jesse Preparing for large amounts of data from next-generation astronomical surveys Jeffrey Scargle
JPL Lee , Jae A study of northern annular mode and its role in stratosphere-troposphere interaction with remote sensing Dong Wu
GRC Lee, Byung Joon Design Optimization of Complicated Gas Turbine System via High-Fidelity Analysis Tools for Fluid-Structure Interaction Meng-Sing Liou
ARC Leeuw, Lerothodi Mid-Infrared to Sub-millimeter Waveband Observational Study of Nearby Elliptical Galaxies Jesse Bregman
ARC Leuko, Stefan Cyanobacterial toxins: Overlooked protective molecules for the evolution of life? Lynn Rothschild
GSFC Leutenegger, Maurice Laboratory measurements of X-ray emission following charge exchange Richard L. Kelley
LaRC Li, Hui Principal Component-based Radiative Transfer Model and Retrieval Algorithm for Hyperspectral Sensors David Kratz
GSFC Liang, Qing Convective scheme for the Goddard Chemistry Climate Model Richard Stolarski
JPL Liu, Xianming Radiative Properties, Cross Sections and Predissociation Yields Relevant to Nitrogen-Rich Atmospheres Paul Johnson
GSFC Lyatsky, Wladislaw Implementation of a New Approach to Improving the Reliability of Space Weather Prediction George V. Khazanov
GSFC Mandell, Avram (Avi) Circumstellar Disk Evolution and Habitable Planet Formation Michael J. Mumma
JPL Mangina, Rao Ultraviolet Emission Cross Sections of Gases of Astrophysical Interest by Electron Impact Joseph M. Ajello
GSFC Mantz, Adam Using Clusters of Galaxies to Probe Cosmic Acceleration and the Growth of Structure
Richard Mushotzky
GSFC Marrari, Marina Using remote sensing of ocean color products to investigate the effects of environmental variability on higher trophic levels, including zooplankton and fish (Southwestern Atlantic Ocean, 34-55°S)
Charles McClain
JSC Martin, Audrey Effect of iron and oxidation conditions on the stability of a clinopyroxene + garnet + magnesite assemblage in planetary mantles: experimental constraints at high pressure - high temperature
Kevin Righter
ARC Marzo, Guiseppe Theoretical and Empirical Studies of Planetary Surface Analogs Ted Roush
ARC Matt, Sean Rotational Evolution from Birth to the Solar Age: Computing Stellar Wind Torques and Spin Histories Tom Greene
JPL Mawet, Dimitri Phase-Mask Coronagraphy and Nulling Interferometry for Extrasolar Planetary System Imaging Gene Serabyn
GSFC Mays, Mona (Leila) Understanding Interplanetary Propagation and Resulting Geomagnetic Activity Using Modeling based on STEREO and THEMIS Observations
Chris St. Cyr
GSFC Mazarico, Erwan Selenodesy with LRO, Force Modeling and Crustal Thickness Study David Smith
JPL McKenzie, Kirk Laser Interferometer for Gravity Wave Detection in Space William Klipstein
GSFC McWilliams, Sean Applying Numerical Relativity to Gravitational Wave Observation John Baker
ARC Melchiorri, Ricardo Study of the atmosphere of the Martian north pole Robert Haberle
GSFC Meyer, Kerry Ice Cloud Retrievals from MODIS Band 26 (1.38 µm): Evaluation and Application to the MOD06/MYD06 Cloud Product Steven Platnick
NAI Mielke, Steven Molecular-Environmental Limits of Terrestrial Photosynthesis: Implications for Extrasolar Biosignatures Nancy Kiang
ARC Mijajlovic, Milan Molecular Modeling of Protocellular Ion Channels Andrew Pohorille
KSC Montgomery, Eliza  Microencapsulation of Corrosion Inhibitors for a Self-healing Paint System Luz Calle
GSFC Morton, Douglas Fire in Amazon forests: carbon emissions and the role of canopy phenology in current and future fire risk
James Collatz
JSC Nakamura, Noboru Origin of stable chlorine isotope fractionations in the early solar system materials Laurence Nyquist
ARC Nishino, Takafumi Numerical modeling and analysis of active flow control devices for the next generation of subsonic fixed-wing aircraft Karim Shariff
ARC Nuevo, Michel A laboratory study of interstellar ice photochemistry as a contributor to the chemical, chiral and isotopic distribution of meteoritic amino acids Scott Sandford
GRC Oravec, Heather Understanding the Effects of Surface Cleanliness and Vacuum on the Shear Strength of Lunar Regolith with Respect to Vehicle Mobility
Phillip Abel
GSFC/GISS Ottaviani, Matteo Development and validation of advanced aerosol retrieval methodologies for satellite remote sensing by combining active and passive measurements from aircraft Michael Mishchenko
JPL Oveisgharan, Shadi Fusion of  Polarimetric INSAR and Lidar Measurements for Estimating Forest Structure and Aboveground Sassan Saatchi
ARC Parenteau, Mary (Niki) Biosignatures in evaporites:  Microbial life in the gypsum crusts of Guerrero Negro, Baja California, Mexico Linda L. Jahnke
JPL Pereverzev, Sergey A Photon-Counting Hot-Electron Bolometer for THz Spectroscopy in Space Boris Karasik
MSFC Peterson, Harold An Investigation of NOx Production by Discharges in the Middle Atmosphere William Koshak
JPL Pineda, Jorge Thermal Balance and Evolution of Dusty Prestellar Cores: The Complementary Picture from Gas Tracers Paul Goldsmith
ARC Pinilla-Alonso, Noemi Organic Matter in the Solar System
Ted Roush
ARC Polyakova, Evgenia Probabilistic methods for surface fluxes estimation of atmospheric gases
Jennifer Dungan
GSFC  Pratt, Aaron Investigation using hurricane research field campaigns (NAMMA and GRIP) data into role of Saharan Dust on tropical cyclone structure and evolution Gerald Heymsfield
JPL Pueyo, Laurent Broadband high-contrast wavefront control in coronagraphy Stuart Shaklan
GSFC Racusin, Judith Probing Gamma-ray Burst Jets with Fermi and Swift
Julie McEnery
GSFC/GISS Ramsay, Hamish An investigation of the possible influence of the stratospheric Quasi-Biennial Oscillation on tropical cyclones
Ron Miller
JPL Rappazzo, Antonio Numeric Modeling of Solar and Space Plasmas Paulett Liewer
JPL Rawlins, Michael Application of Remote Sensing and Land Surface Modeling for Understanding Northern High-Latitude Hydrology and Climatic Change Kyle McDonald
ARC Ricketts, Claire The Titan Haze Simulation Farid Salama
ARC Rowe, Jason Photometry of Transiting Exoplanetary Systems William Borucki
JPL Russell , Michael Theory and experiments to inform methods for life detection with application to planetary environments Isik Kanik
GSFC Sahraoui, Fouad Space Physics Theory and Computer Simulation Melvyn Goldstein
JPL Sardinha-Pinto, Naiara Estimating forest 3D structure and biomass across the globe: a study combining InSAR, Lidar, and ecological models Marc Simard
JPL Sayers, Jack Development of a submm/mm-wave camera for the Caltech Submillimeter Observatory using microwave kinetic inductance detectors Hien Nguyen
ARC Scaranto, Barbara State of BC mixing and its role in radiative forcing Anthony Strawa
JPL Schodlok, Michael Studies of Sea Ice - Ice Shelf - Ocean Interactions and Their Influences on Global Ocean Circulation Using Satellite and In-Situ Data and an Eddy-Permitting Global Ocean Model Dimitris Menemenlis
GSFC Seker, Ilgin Ionospheric Waves and Their Connection to Magnetosphere and Solar Wind Shing Fung
ARC Shenoy, Sachindev (Sachin) Processing of Ices and Dust in Dense Interstellar Medium
Yvonne Pendleton
GSFC  Shih, Albert  Probing solar-flare ion acceleration using present-day instruments and developing the next generation
Brian Dennis
ARC Shinozuka, Yohei Remote sensing of chemical mass of submicron aerosols using NASA satellites: Assessment of its feasibility based on aircraft remote sensing and in situ measurements over North America Jens Redemann
KSC Silvestry Rodriguez, Nadia New UVC-LED, TiO2, and Silver Safe Technology to Sustain Water Quality for Life Support Systems Michael Roberts
GSFC Sippel, Jason OSSE Experiments Testing New Data Platforms for Predicting Tropical Cyclones with an Ensemble Kalman Filter Scott Braun
ARC Sizemore, Hanna Development of Segregated Ground Ice in the Shallow Martian Regolith
Aaron Zent
JPL Stam, Christina Rapid measurement of viable microbial endospores via culture-independent fluorescent method Kashthuri Venkateswaran
GSFC Straughn, Amber Tracing Galaxy Assembly: A Study of Galaxy Merging and the Processes It Induces Jonathan Gardner
JPL Taghavi, Shervin Practical Stabilized Optical Frequency Reference Technologies for the NASA Missions Bob Tjoelker
JSC Theriot, Corey Carbon Nanoparticles: Countermeasures Against Biological Effects of Space Radiation Exposure During Long-duration Exploratory Missions Honglu Wu
JPL Thomas, Bertrand A 1.9 THz heterodyne camera based on MMIC Schottky diodes Imran Medhi
GSFC Thompson, Segayle Qualitative Assessment of Convective Systems using Lidar based Water Vapor Observations.
Wei-Kuo Tao
GSFC Tripathi, Sachchida Numerical Calculation of Titan haze using a 1-D coupled microphysical and photochemical model
Paul Romani
GSFC Troja, Eleonora (Nora) Unraveling the nature of short gamma-ray burst progenitors
Neil Gehrels
GSFC/GISS Tsigaridis, Konstantinos (Kostas) Secondary organic aerosols in the GISS general circulation model: spatio-temporal distribution, relative importance on total aerosol distribution and impact on climate James Hansen
GSFC Tzanavaris, Panayiotis The evolution of normal galaxies in the X-rays: Preparing to observe the most numerous extragalactic X-ray population in the Universe
Ann Hornschemeier
JPL Urban, Andrea Origin of the IMF via Star Formation Simulations Harold Yorke
JSC Usui, Tomohiro Experimental studies for primitive Martian basalt compositions
John Jones
GSFC Utku, Cuneyt Effect of Topography on Global Scale Soil Moisture Retrieval Algorithms
David Le Vine
JSC van Acken, David The formation and differentiation history of the aubrite parent body
Alan Brandon
MSFC van der Horst, Alexander  Gamma-ray burst blast wave physics in the GLAST era Chryssa Kouveliotou
KSC van Suetendael, Nancy Investigating Design and Operational Issues Associated with the Lunar Electrodynamic Dust Shield in Transitioning this Technology from Prototype to Full-Scale Applications Carlos Calle
JPL Vance , Steven Tunable Laser Spectroscopy for Life Detection and Understanding Planetary Chemical Evolution Christopher R. Webster
GSFC Venter, Christo Modeling of GLAST LAT Gamma-Ray Pulsars Alice Harding
GSFC Venters, Tonia The Diffuse Gamma-ray Sky in the Era of the Fermi Gamma-ray Space Telescope
Floyd Stecker
GSFC Vinatier, Sandrine Study of the dynamics and chemistry of Titan’s middle atmosphere: analysis of Cassini/CIRS limb spectra
Gordon Bjoraker
MSFC Weng, Qihao Effects of Urbanization on Surface Energy Fluxes and Urban Climate: An Analysis Using Remote Sensing, GIS, and Numerical Modeling Dale Quattrochi
ARC Williams, Kaj Modeling the Martian Water Cycle: The Role of the North Residual Cap Jeffrey Hollingsworth
GSFC Williams, Peter Studies of the Linkage between the Solar Interior and Solar Activity William Pesnell
GRC Woodworth, Andy Growth of Silicon Carbide Fibers as a Means to Improve Device Performance Phil Neudeck
GRC Woodworth, James Development of Advanced Silicon-Carbon Composite Anode Materials for Use in Lithium-Ion Batteries Richard Baldwin
LaRC Yang, Mei Ying In Situ and Remote Sensing of Greenhouse and Other Trace Gases in the Atmosphere Using Advance Tunable Laser Sources Glenn Diskin
JPL Yu, Shanshan Laboratory Rotational Spectroscopy of Protonated Methanol Brian Drouin
JPL Zemcov, Michael Measuring the Formation of Structure in the Early Universe with CIBER and QUaD James Bock
GSFC Zenitani, Seiji Magnetic reconnection with non-standard scale dynamics Micahel Hesse
GSFC Zhang, Hui Hot Flow Anomalies and Foreshock Cavities David Sibeck
LaRC Ziemba, Luke An Investigation of Water-Soluble Pollutants from Aircraft Engines: Partitioning of Water-Soluble Organic Carbon (WSOC) Between the Gas and Particle Phase as a Function of Plume Age
Bruce Anderson