Gregory R. Carmichael

About

Gregory R. Carmichael is a leading figure in atmospheric chemistry and air quality modeling, with a career dedicated to understanding and predicting the transport and transformation of pollutants across Asia. His research centers on the development and application of advanced chemical transport models, particularly WRF-Chem and GEOS-Chem, to study the lifecycle of aerosols. A major contribution is his pioneering work in assimilating satellite observations—such as aerosol optical depth (AOD) from MODIS and OMI—into these models to improve the accuracy of regional air quality analyses and forecasts. This work, including a highly cited 2008 study on Asian aerosol modeling with data assimilation (132 citations), has significantly advanced our ability to constrain emissions and predict pollution events. Carmichael has also been instrumental in developing novel emission inventories, such as the VIIRS-based Fire Emission Inventory (VFEI), which provides critical data on biomass burning. His impact is underscored by a portfolio of highly cited papers that have shaped the field, and his leadership in major field campaigns like KORUS-AQ has further cemented his reputation as a key architect of modern, observationally constrained air quality science.

Research Focus

Key Achievements

Top Papers

1. 1
   A regional scale chemical transport modeling of Asian aerosols with data assimilation of AOD observations using optimal interpolation technique

   132 citations · 2008
2. 2
   Aerosol optical depth assimilation for a size-resolved sectional model: impacts of observationally constrained, multi-wavelength and fine mode retrievals on regional scale analyses and forecasts

   124 citations · 2013
3. 3
   Diurnal variation of aerosol optical depth and PM _2.5 in South Korea: a synthesis from AERONET, satellite (GOCI), KORUS-AQ observation, and the WRF-Chem model

   88 citations · 2018
4. 4
   Constraining black carbon aerosol over Asia using OMI aerosol absorption optical depth and the adjoint of GEOS-Chem

   53 citations · 2015
5. 5
   Introducing the VIIRS-based Fire Emission Inventory version 0 (VFEIv0)

   22 citations · 2022
6. 6
   Aerosol layer height (ALH) retrievals from oxygen absorption bands: intercomparison and validation among different satellite platforms, GEMS, EPIC, and TROPOMI

   7 citations · 2025
7. 7
   Introducing a VIIRS-based Fire Emission Inventory version 0 (VFEIv0)

   4 citations · 2022

Key Collaborators

Contact & Links