Primary Focus

My primary contribution to the LDDR/DR project involves exploring aerosol-cloud-radiation interactions through the application of computer models. Currently I am using the Community Aerosol and Radiation Model for Atmospheres (CARMA) and the LANL LES model HIGRAD. CARMA was originally developed by Andy Ackerman (NASA Ames), O.B. Toon (UC Boulder), and R. Turco (UCLA). It includes coagulation, growth, evaporation, nucleation, sedimentation, and radiation processes and is still under active development. HIGRAD is a high resolution LES model originally developed at by Jon Reisner here at LANL and is currentl under active developement by the LDRD/DR modeling group.

Additional Contributions

Additionally I work in the area of data analysis and interpretation.

Nauru

One project involved analyzing ARM surface data and MTI and GMS-5 satellite data at the island of Nauru located in the tropical western pacific ocean focussing on La Nina-ElNino contrasts in cloudiness with Bill Porch, Petr Chylek, Manvendra Dubey, Brad Henderson, and William Clodius. This work resulted in a submission to GRL (LA-UR-05-7628).

Indian Outflow

A second project with Petr Chylek, Mavendra Dubey and others involved analyzing MODIS satellite of aerosol outflow from the Indian continent. This work resulted in a submission to Nature (LA-UR-05-4861) which is currently under review.

Previous and Ongoing Projects

I am also still actively involved in studying atmosphere-biosphere interactions particularly realating to CO2 exchange.

OCO

In this capacity have contributed to the Orbiting Carbon Observatory (OCO) satellite project based out of JPL and am currently an OCO Science Team Associate. OCO is scheduled to launch in August 2007 and will provide a global map of column CO2 every 16 days for approximately two years following its launch. OCO website

Global Fire Emissions

TBD

CO2 sampling biases

TBD

Link to Publications

Publications