Articles | Volume 15, issue 20
Atmos. Chem. Phys., 15, 11513–11520, 2015
https://doi.org/10.5194/acp-15-11513-2015
Atmos. Chem. Phys., 15, 11513–11520, 2015
https://doi.org/10.5194/acp-15-11513-2015

Research article 20 Oct 2015

Research article | 20 Oct 2015

Cold Smoke: smoke-induced density currents cause unexpected smoke transport near large wildfires

N. P. Lareau and C. B. Clements

Related authors

Environmental controls on pyrocumulus and pyrocumulonimbus initiation and development
Neil P. Lareau and Craig B. Clements
Atmos. Chem. Phys., 16, 4005–4022, https://doi.org/10.5194/acp-16-4005-2016,https://doi.org/10.5194/acp-16-4005-2016, 2016
Short summary

Related subject area

Subject: Dynamics | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
Orographically induced spontaneous imbalance within the jet causing a large-scale gravity wave event
Markus Geldenhuys, Peter Preusse, Isabell Krisch, Christoph Zülicke, Jörn Ungermann, Manfred Ern, Felix Friedl-Vallon, and Martin Riese
Atmos. Chem. Phys., 21, 10393–10412, https://doi.org/10.5194/acp-21-10393-2021,https://doi.org/10.5194/acp-21-10393-2021, 2021
Short summary
Exploring the elevated water vapor signal associated with the free tropospheric biomass burning plume over the southeast Atlantic Ocean
Kristina Pistone, Paquita Zuidema, Robert Wood, Michael Diamond, Arlindo M. da Silva, Gonzalo Ferrada, Pablo E. Saide, Rei Ueyama, Ju-Mee Ryoo, Leonhard Pfister, James Podolske, David Noone, Ryan Bennett, Eric Stith, Gregory Carmichael, Jens Redemann, Connor Flynn, Samuel LeBlanc, Michal Segal-Rozenhaimer, and Yohei Shinozuka
Atmos. Chem. Phys., 21, 9643–9668, https://doi.org/10.5194/acp-21-9643-2021,https://doi.org/10.5194/acp-21-9643-2021, 2021
Short summary
Opinion: Gigacity – a source of problems or the new way to sustainable development
Markku Kulmala, Tom V. Kokkonen, Juha Pekkanen, Sami Paatero, Tuukka Petäjä, Veli-Matti Kerminen, and Aijun Ding
Atmos. Chem. Phys., 21, 8313–8322, https://doi.org/10.5194/acp-21-8313-2021,https://doi.org/10.5194/acp-21-8313-2021, 2021
Short summary
The thermodynamic structures of the planetary boundary layer dominated by synoptic circulations and the regular effect on air pollution in Beijing
Yunyan Jiang, Jinyuan Xin, Ying Wang, Guiqian Tang, Yuxin Zhao, Danjie Jia, Dandan Zhao, Meng Wang, Lindong Dai, Lili Wang, Tianxue Wen, and Fangkun Wu
Atmos. Chem. Phys., 21, 6111–6128, https://doi.org/10.5194/acp-21-6111-2021,https://doi.org/10.5194/acp-21-6111-2021, 2021
Short summary
Turbulent and boundary layer characteristics during VOCALS-REx
Dillon S. Dodson and Jennifer D. Small Griswold
Atmos. Chem. Phys., 21, 1937–1961, https://doi.org/10.5194/acp-21-1937-2021,https://doi.org/10.5194/acp-21-1937-2021, 2021
Short summary

Cited articles

Britter, R. E. and Simpson, J. E.: Experiments on the dynamics of a gravity current head, J. Fluid Mech., 88, 223–240, https://doi.org/10.1017/S0022112078002074, 1978.
Clements, C. B. and Oliphant, A. J.: The California State University mobile atmospheric profiling system: A facility for research and education in boundary layer meteorology, B. Am. Meteor. Soc., 95, 1713–1724, https://doi.org/10.1175/BAMS-D-13-00179.1, 2014.
Delfino, R. J., Brummel, S., Wu, J., Stern, H., Ostro, B., Lipsett, M., Winer, A., Street, D. H., Zhang, L., Tjoa, T., and Gillen, D. L.: The relationship between respiratory and cardiovascular hospital admissions to the southern California wildfires of 2003, Occup. Environ. Med., 66, 189–197, https://doi.org/10.1136/oem.2008.041376, 2009.
Fromm, M., Lindsey, D. T., Servranckx, R., Yue, G., Trickl, T., Sica, R., Doucet, P., and Godin-Beekmann, S.: The untold story of pyrocumulonimbus, B. Am. Meteor. Soc., 91, 1193–1209, https://doi.org/10.1175/2010BAMS3004.1, 2010.
Garrett, J. R., Pittock, A. B., and Walsh, K: Response of the atmospheric boundary layer and soil layer to high altitude, dense aerosol cover, J. Appl. Meteor., 29, 35–52 , https://doi.org/10.1175/1520-0450(1990)029<0035:ROTABL>2.0.CO;2, 1990.
Download
Short summary
This paper presents first observations of smoke-induced density currents, which are a boundary-layer flow phenomenon resulting from radiative shading by wild fire smoke. Our analysis uses a mobile Doppler lidar to reveal the anatomy and evolution of one such density current in northern California. The results show that these density currents can flow counter to the ambient wind and spread over long distances (e.g. 25km), causing unexpected smoke impacts.
Altmetrics
Final-revised paper
Preprint