Research Topics Include:
Observed 20th century desert dust variability: impact on climate and biogeochemistry." Atmospheric Chemistry and Physics 10 (2010): 10875-10893."
Soil hydraulic functions determined from measurements of air permeability, capillary modeling and high-dimensional AMALGAM parameter estimation." Vadose Zone Journal In Press (2010)."
Correlating tropospheric column ozone with tropopause folds: the Aura-OMI satellite data." Atmospheric Chemistry and Physics 10 (2010): 9681-9688."
A chemical ionization mass spectrometer for continuous underway shipboard analysis of dimethylsulfide in near-surface seawater." Ocean Science 5 (2009): 537-546."
Tracking uncertainties in the causal chain from human activities to climate." Geophysical Research Letters 36 (2009)."
Methyl chloride in a deep ice core from Siple Dome, Antarctica." Geophysical Research Letters 36 (2009)."
Comment on Atmospheric carbon isotope signatures in phytolith occluded carbon, Carter, JA, Quaternary International, this volume." Quaternary International 193 (2009): 30-31."
Quantifying errors in trace species transport modeling." Proceedings of the National Academy of Sciences of the United States of America 105 (2008): 19617-19621."
|Research Lab||Description||Links to more information|
|Trumbore / Czimczik Research Group||
The focus of my research is the cycling of carbon and nitrogen in the terrestrial biosphere. I am particularly interested in understanding how climate change and alterations in land use and management as well as in the frequencies of disturbances (i.e. drought, fire) affect the allocation and residence time of carbon and nitrogen in soils and perennial plants. And, how changes in terrestrial ecosystems feed back to the climate system, e.g. by constraining future levels of greenhouse gases in the atmosphere.
|Prather Modeling Lab||
Simulation of the physical, chemical and biological processes that determine atmospheric composition. Development of
Studies include the predicted effects of volcanic sulfate aerosols on stratospheric ozone loss, the role of clouds in scattering sunlight and altering photochemistry, and the non-linearities in chemical systems that lead to sudden changes such as the depletion of ozone caused by CFC increases.
|Saltzman / Aydin Research Group||
The oceans produce a diverse array of trace gases that affect the chemistry of the atmosphere and the climate system. Our goal is to understand what controls the production, emissions, and atmospheric chemistry of oceanic trace gases. We develop trace gas detectors, collect field data from islands and ships and use computer models to simulate natural processes.
|Saltzman / Aydin Research Group|
|Zender Modeling Lab||
Our research group studies the energy and trace species that pass through Earth's atmosphere. We model the microphysics of trace gas, aerosol, cloud, and surface interactions with Earth's radiative, thermodynamic, and chemical budgets. We then (often) parameterize these effects in climate models. The model simulations, combined with lab, field, and satellite data, help us attribute alteration of Earth's climate and composition to specific processes. Our current research includes mineral dust, meteoric, and carbonaceous aerosols, snow lifecycle and albedo, aerosol impacts on ocean biogeochemistry, wind-driven surface energy/mass exchange, climate-disease links, and terascale data analysis. Our aerosol generation, radiative transfer, and data processing models are freely available and are used in geoscience research institutions world-wide.
We are exploring interactions between biosphere-atmosphere-human, specifically, how the interactions affect on the oxidation capacity of the troposphere that controls fates of trace gases and secondary photochemical product (e.g ozone and secondary aerosols) productions. Our research tools are mainly in-situ measurement instrumentation to precisely quantify very reactive radical species in the troposphere and we deploy the instrumentation to the environmentally critical locations.