Atmospheric aerosols degrade health and visibility, and have highly uncertain effects on climate. We are combining modeling, satellite remote sensing, and in situ observations to develop the representation of aerosol processes in chemical transport models.
Project Leaders
Betty Croft
Research Associate (Co-advised with Rachel Chang at Dalhousie University and Jeff Pierce at CSU)
- Email: betty.croft@dal.ca
Tools: GEOS-Chem, CALIPSO and OMI
References:
Croft, B., Martin, R. V., Moore, R. H., Ziemba, L. D., Crosbie, E. C., Liu, H., Russell, L. M., Saliba, G., Wisthaler, A., Müller, M., Schiller, A., Galí, M., Chang, R. Y.-W., McDuffie, E. E., Bilsback, K. R., and Pierce, J. R., Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region, Atmos. Chem. Phys., doi:10.5194/acp-21-1889-2021, 2021. [Link]
Latimer, R.N.C., R. V. Martin, Interpretation of measured aerosol mass scattering efficiency over North America using a chemical transport model. , Atmos. Chem. and Phys., doi: 10.5194/acp-19-2635-2019, 2019. [Link]
Croft, B., R. V. Martin, W. R. Leaitch, J. Burkart, R. Y.-W. Chang, D. B. Collins, P. L. Hayes, A. L. Hodshire, L. Huang, J. K. Kodros, A. Moravek, E. L. Mungall, J. G. Murphy, S. Sharma, S. Tremblay, G. R. Wentworth, M. D. Willis, J. P. D. Abbatt, J. R. Pierce, Arctic Marine Secondary Organic Aerosol Contributes Significantly to Summertime Particle Size Distributions in the Canadian Arctic Archipelago, Atmos. Chem. and Phys. , doi:10.5194/acp-19-2787-2019, 2787-2812, 2019.[Link]
Xu, J.-W., R. V. Martin, A. Morrow, S. Sharma, L. Huang, W. R. Leaitch, J. Burkart, H. Schulz, M. Zanatta, M. D. Willis, D. K. Henze, C. J. Lee, A. B. Herber, and J. P. D. Abbatt: Source attribution of Arctic black carbon constrained by aircraft and surface measurements, Atmos. Chem. Phys. Discuss., doi:10.5194/acp-2017-236, 2017. [Link]
Croft, B., R. V. Martin, W. R. Leaitch, P. Tunved, T. J. Breider, S. D. D’Andrea, and J. R. Pierce, Processes controlling the seasonal cycle of Arctic aerosol number and size distributions, Atmos. Chem. Phys., 16, 3665-3682, doi:10.5194/acp-16-3665-2016, 2016. [Link]
Croft, B., G. R. Wentworth, R. V. Martin, W. R. Leaitch, J. G. Murphy, B. N. Murphy, J. K. Kodros, J. P. D. Abbatt and J. R. Pierce, Contribution of Arctic seabird-colony ammonia to atmospheric particles and cloud-albedo radiative effect,Nat. Commun., 7:13444, doi:10.1038/ncomms13444, 2016. [Link]
Croft, B., J. R. Pierce, and R. V. Martin, Interpreting Aerosol Lifetimes Using the GEOS-Chem Radionuclide Model Atmos. Chem. Phys., 14, 4313–4325, 2014. [Full Text (PDF)].
Philip, S., R. V. Martin, J. R. Pierce, J. L. Jimenez, Q. Zhang, M. R. Canagaratna, D. V. Spracklen, C. R. Nowlan, L. N. Lamsal, M. J. Cooper, and N. A. Krotkov, Spatially and seasonally resolved estimate of the ratio of global organic matter to organic carbon, Atmospheric Environment, 87 (2014) 34-40, http://dx.doi.org/10.1016/j.atmosenv.2013.11.065. [Full Text (PDF)].
Croft, B., Pierce, J. R., Martin, R. V., Hoose, C., and Lohmann, U., Uncertainty associated with convective wet removal of entrained aerosols in a global climate model, Atm. Chem. Phys. 12, 10725-10748, 2012. [Full Text (PDF)]