Staff information

Biography

I received my PhD in Atmospheric Science from Colorado State University in 2012. I have worked at JPL, RAL (UK), and University of Oxford (UK). My research focuses on aerosols on clouds, precipitation and effective radiative forcing using models of different scales and multi-sensor satellite observations.

PNNL Publications

2024

• Feingold G., V.P. Ghate, L. Russell, P.N. Blossey, W. Cantrell, M. Christensen, and M.S. Diamond, et al. 2024. "Physical science research needed to evaluate the viability and risks of marine cloud brightening." Science Advances 10, no. 12:Art. No. eadi8594. PNNL-SA-189954. doi:10.1126/sciadv.adi8594
• Li X., H. Wang, M. Christensen, J. Chen, S. Tang, S. Kirschler, and E. Crosbie, et al. 2024. "Process Modeling of Aerosol-cloud Interaction in Summertime Precipitating Shallow Cumulus over the Western North Atlantic." Journal of Geophysical Research: Atmospheres 129, no. 7:Art. No. e2023JD039489. PNNL-SA-186592. doi:10.1029/2023JD039489

2023

• Christensen M., P. Ma, P. Wu, A.C. Varble, J.H. Muelmenstaedt, and J.D. Fast. 2023. "EVALUATION OF AEROSOL-CLOUD INTERACTIONS IN E3SM USING A LAGRANGIAN FRAMEWORK." Atmospheric Chemistry and Physics 23, no. 4:2789-2812. PNNL-SA-177501. doi:10.5194/acp-23-2789-2023
• Manshausen P., D. Watson-Parris, M. Christensen, J. Jalkanen, and P. Stier. 2023. "Rapid saturation of cloud water adjustments to shipping emissions." Atmospheric Chemistry and Physics 23, no. 19:12545-12555. PNNL-SA-184682. doi:10.5194/acp-23-12545-2023
• Varble A.C., P. Ma, M. Christensen, J.H. Muelmenstaedt, S. Tang, and J.D. Fast. 2023. "Evaluation of Liquid Cloud Albedo Susceptibility in E3SM Using Coupled Eastern North Atlantic Surface and Satellite Retrievals." Atmospheric Chemistry and Physics 23, no. 20:13523-13553. PNNL-SA-185187. doi:10.5194/acp-23-13523-2023

2022

• Christensen M., A. Gettelman, J. Cermak, G. Dagan, M. Diamond, A. Douglas, and G. Feingold, et al. 2022. "Opportunistic Experiments to Constrain Aerosol Effective Radiative Forcing." Atmospheric Chemistry and Physics 22, no. 1:641-674. PNNL-SA-163887. doi:10.5194/acp-22-641-2022
• Heinold B., H. Baars, B. Barja, M. Christensen, A. Kubin, K. Ohneiser, and K. Schepanski, et al. 2022. "Important role of stratospheric injection height for the distribution and radiative forcing of smoke aerosol from the 2019/2020 Australian wildfires." Atmospheric Chemistry and Physics 22, no. 15:9969-9985. PNNL-SA-167820. doi:10.5194/acp-22-9969-2022
• Manshausen P., D. Watson-Parris, M. Christensen, J. Jalkanen, and P. Stier. 2022. "Invisible Ship Tracks Show Large Cloud Sensitivity to Aerosol." Nature 610, no. 7930:101-106. PNNL-SA-177338. doi:10.1038/s41586-022-05122-0
• Watson-Parris D., M. Christensen, A. Laurenson, D. Clewley, E. Gryspeerdt, and P. Stier. 2022. "Shipping regulations lead to large reduction in cloud perturbations." Proceedings of the National Academy of Sciences (PNAS) 119, no. 41:Art. No. e2206885119. PNNL-SA-177339. doi:10.1073/pnas.2206885119

2021

• Kazil J., M. Christensen, S.J. Abel, T. Yamaguchi, and G. Feingold. 2021. "Realism of Lagrangian large eddy simulations driven by renalysis meteorology: Tracking a pocket of open cells under a biomass burning aerosol layer." Journal of Advances in Modeling Earth Systems 13, no. 12:Art. NO. e2021MS002664. PNNL-SA-163481. doi:10.1029/2021MS002664