Greenhouse gas Modeling and Applications (GMA)

The main focus of this group is to explore the usability of atmospheric measurements of important greenhouse gases in conjunction with numerical models and Bayesian inverse technique to derive the regional sources and sinks of GHGs. This quantitative understanding is important to interpret, assess or manage the long-term changes in the carbon cycle.

The group mainly targets the research on establishing a data driven modeling approach to the Indian subcontinent, where a lack of knowledge currently limits the predictability of coupled biogeochemical cycle- climate interactions and future climate. One of our critical research topics is about monitoring emission hotspots in India (e.g. cities) in the context of rapidly increasing anthropogenic emissions and their impact on climate.

It follows that the group is involved in analyzing and utilizing a wide range of data streams of atmospheric GHG observations including satellite measurements (e.g. GOSAT, OCO-2). Most of our investigations are based on both Eulerian (e.g. WRF) and Lagrangian (e.g. STILT) models which are being used as the core components of the inverse modeling framework. More information on modeling tools are given here. The ultimate goal of the group is to provide reliable, independent, and observational based GHG source-sink estimates for a critically important region in terms of carbon cycle science.

The group is in active collaboration with MPI-BGC (Dr. Christoph Gerbig, Dr. Julia Marshall, and Prof. Dr. Martin Heimann) and NOAA (Dr. Arlyn Andrews and Dr. Pieter Tans). The other collaborations of the group are CarbonSat Team and Dr. Thomas Nehrkorn, AER, USA.

Group leader's profile

Dr. Dhanyalekshmi K. Pillai received Ph.D from the Max Planck Institute for Biogeochemistry, Germany. She worked as a postdoc at the University of Bremen and the Max Planck Institute for Biogeochemistry in Germany, where she actively involved in the development and application of high-resolution greenhouse gas transport models. Later she moved to the U.S to work as a Research Scientist II at the National Oceanic and Atmospheric Administration (NOAA), on a project funded by NASA. Since December 2016, she’s been working as Assistant Professor and leading GMA group at EES, IISER Bhopal, India.