N. Chisholm, B. Nagare, R.Y.-W. Chang, C. Wainwright, H.J.S. Fernando, E.D. Creegan, T. C. Vandenbeor, L. Salehpoor, “Marine aerosol physical properties and influences by meteorology” American Meteorology Society, Boston, USA, January 2020. [oral presentation]
J. Dionne, B. Nagare, R. C. Fitzner, P. Duplessis, C. Power, A. Moravek, T. Furlani, A. Wiacek, C. Young, R.Y.-W. Chang, “Examining the properties of late-spring and summer fogs in Halifax” Queer Atlantic Canadian STEM Conference, Halifax, NS, January 18, 2020. [oral presentation]
B. Nagare, N. Chisholm, C. Wainwright, E. Creegan, H.J.S. Fernando, R.Y.-W. Chang, “Physical and Chemical Properties of Aerosol During the C-FOG Campaign on Board the R/V Hugh Sharp” American Geophysical Union, San Francisco, USA, December 2019. [poster]
R. Chang, “Measuring and modelling aerosol indirect effects” New Frontiers Seminar Series, University of Toronto, Scarborough, CA, October 2019. [invited talk]
P. Duplessis, J. Cluett, S. Hartery, M. Wheeler, A.M. Macdonald, S. Bhatia, R. Chang, “Microphysics of Coastal Fog from a Field Study on the Canadian East Coast” International Conference of Fog, Fog Collection and Dew, Taipei, Taiwan, July 2019. [oral presentation]
C. Chen, M. Hong, W. Perrie, R. Chang, X. Chen, “Boundary Layer Parameterizations to Simulate Fog over Atlantic Canada Waters” International Conference of Fog, Fog Collection and Dew, Taipei, Taiwan, July 2019. [poster]
P. Duplessis, M. Zhang, W. Perrie, G. Isaac, R. Chang, “Linking inter annual and interdecadal fog variability in Atlantic Canada to changes in large-scale atmospheric and marine features” International Conference of Fog, Fog Collection and Dew, Taipei, Taiwan, July 2019. [poster]
R. Chang, P. Hayes, A. Vicente-Luis, S. Tremblay, S. Sharma, R. Leaitch, F. Kolonjari, “Surface observations of aerosol size distributions at PEARL from 2015-2019” CANDAC Annual Science Meeting, Toronto, CA, May 2019. [oral presentation]
J. Dionne, K. von Salzen, J. Cole, R. Mahmood, W. R. Leaitch, G. Lesins, I. Folkins, R. Y.-W. Chang, “Modelling the relationship between liquid water content and cloud droplet number concentration observed in low clouds in the summer Arctic and its radiative effects” CANDAC Annual Science Meeting, Toronto, CA, May 2019. [oral presentation]
R. Chang, “Aerosol Chemical and Physical Properties Measured in Halifax” Atlantic Air Quality and Health Workshop, Toronto, CA, March 2019. [oral presentation]
R. Chang, “Aerosol and Droplet Properties in Arctic and Marine Environments” Department of Oceanography, Dalhousie University, Halifax, CA, January 2019. [invited talk]
R. Chang, P. Duplessis, C. Chen, S. Hartery, S. Bhatia, M. Zhang, W. Perrie, M. Wheeler, A.M. Macdonald, “Effects of fog and aerosol microphysics on visibility observed on the coast of Atlantic Canada” American Geophysical Union Fall Meeting, Washington DC, USA, December 2018. [oral presentation]
“Aerosol and Droplet Properties in Arctic and Marine Environments” Department of Chemistry, University of Toronto, Toronto, CA, November 2018. [invited talk]
R. Chang, P. Duplessis, S. Hartery, S. Bhatia, J. Cluett, M. Wheeler, A.M. Macdonald, “Characterization of Coastal Fog in Atlantic Canada” International Aerosol Conference, St. Louis, USA, September 2018. [oral presentation]
R. Chang, P. Duplessis, S. Hartery, S. Bhatia, J. Cluett, M. Wheeler, A.M. Macdonald, “Fog and Aerosol Microphysics on the Coast of Nova Scotia” Canadian Meteorological and Oceanographic Society Congress, Halifax, CA, June 2018. [oral presentation]
J.P. Chaubey, P. Duplessis, L. Utter, N. Chisholm, R. Chang, “Summertime characteristics of fog and visibility over Halifax using in-situ instrumentation” Canadian Meteorological and Oceanographic Society Congress, Halifax, CA, June 2018. [poster]
J.P. Chaubey, M. Boyer, D. Collins, V. Irish, J. Abbatt, A. Bertram, R. Chang, “Cloud condensation nuclei aerosols over the remote Canadian Arctic Ocean during summer: Results from the Amundsen ship cruise of 2016” Canadian Meteorological and Oceanographic Society Congress, Halifax, CA, June 2018. [oral presentation]
N. Chisholm, M. Boyer, R. Chang, “Composition and hygroscopicity of aerosols artificially generated from sea water samples” Canadian Meteorological and Oceanographic Society Congress, Halifax, CA, June 2018. [poster]
J. Dionne, K. von Salzen, J. Cole, R. Mahmood, W. R. Leaitch, G. Lesins, I. Folkins, R. Y.-W. Chang, “Examining the sensitivity of the radiative properties of modelled low clouds in the summer Arctic to cloud droplet number concentration” Canadian Meteorological and Oceanographic Society, Halifax, CA, June 2018. [oral presentation]
P. Duplessis M. Zhang, W. Perrie, G. Isaac, R. Chang, “Observation of a decreasing marine and coastal fog frequency in Atlantic Canada over the past six decades due to possible changes in large-scale atmospheric features” Canadian Meteorological and Oceanographic Society, Halifax, CA, June 2018. [oral presentation]
C. Chen M. Zhang, W. Perrie, R. Chang, X. Chen, “Evaluation of boundary layer parameterization for a mesoscale atmospheric model for a long-lasting fog case over Grand Banks” Canadian Meteorological and Oceanographic Society, Halifax, CA, June 2018. [poster]
R. Chang, J.P. Chaubey, C. Chen, J.S. Kim, M. Zhang, Z. Long, W. Perrie, V. Khalilian, D. Atkinson, “Improving Visibility Forecasting in Summer Time Polar Fog” Canadian Meteorological and Oceanographic Society, Halifax, CA, June 2018. [oral presentation]
R. Chang, “Coastal fog microphysics in Atlantic Canada” Canadian Association of Physicists Congress, Halifax, CA, June 2018. [invited talk]
R. Chang, “Hygroscopicity of ambient and artificially-generated particle in the Canadian Arctic” Canadian Chemistry Conference and Exhibition, Edmonton, CA, May 2018. [invited talk]
P. Duplessis, R. Y.-W. Chang, A. A. Frossard, W. C. Keene, J. R. Maben, M. S. Long, S. R. Beaupre, D. J. Kieber, J. D. Kinsey, Y. Zhu, X. Lu, J. Bisgrove, "Influences of Scavenging and Removal of Surfactants by Bubble Processing on Primary Marine Aerosol Production from North Atlantic Seawater" American Geophysical Union (AGU) Fall Meeting, New Orleans, USA, December 2017. [poster]
R. Chang, M. Boyer, D.B. Collins, V. Irish, N. Chisholm, B. Limkilde, K. Runte, K. Tymoshuk, A. Bertram, L. Miller, “Artificially -Generated Sea Spray Aerosols from Multiple Water Sources” NETCARE Annual Science Meeting, Toronto, CA, November 2017. [poster]
J.P. Chaubey, R. Chang, M. Boyer, D.B. Collins, J. Abbatt, A. Bertram, V. Irish, S. Sharma, R. Leaitch, “Cloud Condensation Nuclei over the Canadian Arctic During Summer 2016” NETCARE Annual Science Meeting, Toronto, CA, November 2017. [poster]
N. Chisholm, M. Boyer, L. Utter, R. Chang, “The Hygroscopicity of the Organic Fraction of Sea Spray Aerosols” NETCARE Annual Science Meeting, Toronto, CA, November 2017. [poster]
J. Dionne, J. Cole, K. Van Salzen, W.R. Leaitch, R. Chang, “Modelling the Radiative Effects of Fog and Low Cloud in the Summer Arctic” Connaught Summer Institute, Alliston, CA, July 2017. [poster]
P. Duplessis, R. Y.-W. Chang, M. Wheeler, A. M. Macdonald “Coastal Fog in Atlantic Canada: A Field Study” MEOPAR Annual Scientific Meeting, Montréal, QC, June 2017 [poster]
J. Dionne, J. Cole, K. von Salzen, R. Mahmood, W. R. Leaitch, I. Folkins, R. Y.-W. Chang "Evaluating the radiative effects of fog and cloud properties in the Arctic" MEOPAR Annual Scientific Meeting, Montréal, QC, June 2017 [poster]
J. Dionne, J. Cole, K. von Salzen, R. Mahmood, W. R. Leaitch, I. Folkins, R. Y.-W. Chang "Evaluating the radiative effects of fog and cloud properties in the Arctic" Canadian Meteorological and Oceanographic Society Congress, Toronto, ON, June 2017 [poster]
A. Mercer, R.Y.-W. Chang and I. Folkins “Nocturnal Relative Humidity Maxima above the Boundary Layer in the American Midwest", Canadian Meteorological and Oceanographic Society Congress, Toronto, June 2017 [poster]
P. Duplessis, S. Hartery, M. Wheeler, A. M. Macdonald, J. Miller, S. Bhatia, R. Y.-W. Chang “Characterization of Coastal Fog in Atlantic Canada” Canadian Society for Chemistry Conference, Toronto, ON, May 2017 [oral presentation]
N. Chisholm, M. Boyer, B. Limkilde, K. Runte, K. Tymoshuk, D.B. Collins, V. Irish, A. Bertram, J. Abbatt, R. Y.-W. Chang “Characterization of Coastal Fog in Atlantic Canada” Canadian Society for Chemistry Conference, Toronto, ON, May 2017 [oral presentation]
P. Duplessis, S. Bhatia, S. Hartery, J. Miller, A. M. Macdonald, M. Wheeler, R. Y.-W. Chang, “Coastal Fog in Atlantic Canada: Characterization and Projection in a Changing Climate” American Geophysical Union Fall Meeting, San Francisco, USA, December 2016 [poster]
R. Chang, M. Boyer, D. Collins, N. Chisholm, S. Bhatia,V. Irish, A. Bertram, J. Abbatt, L. Miller, “Artificially-Generated Sea Spray Aerosol from Arctic Waters” ArcticNET Annual Science meeting, Winnipeg, CA, December 2016 [poster]
R. Chang, “Aerosols in Marine and Polar Environments” Department of Atmospheric and Ocean Sciences, McGill University, Montreal, CA, November 2016. [invited talk]
P. Duplessis, S. Bhatia, S. Hartery, J. Miller, A. M. Macdonald, M. Wheeler, R. Y.-W. Chang, “Coastal Fog in Atlantic Canada: Characterization and Projection in a Future Climate” Graduate Climate Conference, Pack Forest, USA, October 2016 [poster]
R. Chang, P. Duplessis, S. Hartery, S. Bhatia, J. Miller, M. Boyer, A.M. Macdonald, M. Wheeler, “Studying fog in and around Halifax, NS” MEOPAR Annual Science Meeting, Ottawa, CA, September 2016 [oral presentation]
J. Dionne, K. von Salzen, R. Mahmood, W. R. Leaitch, I. Folkins, R. Y.-W. Chang "Evaluating the PAM-SCM during instances of fog and low cloud in the Arctic" MEOPAR Annual Scientific Meeting, Ottawa, ON, September 26, 2016 [poster]
R. Chang, P. Duplessis, M. Boyer, C. Boudreau, A. Drodge, M. Long, W. Keene, J. Maben, "Characterizing Laboratory-Generated Marine Aerosol" Canadian Chemistry Conference and Exhibition, Halifax, CA, June 2016 [oral presentation]
S. Hartery, R.Y.-W. Chang, J. Lindaas, S. Miller, R. Commane, S. Wofsy, A. Karion, C. Sweeney, C. Miller, S. Dinardo, J. Henderson, M. Mountain, J. Eluskiewicz, N. Steiner, K. McDonald, J. Watts, J. Kimball, "Constraining the 2012-2014 growing season Alaskan methane budget using CARVE aircraft measurements", Canadian Chemistry Conference and Exhibition, Halifax, CA, June 2016 [oral presentation]
P. Duplessis, T.N. Brown, R. Y.-W. Chang,"Developing a quantitative structure activity relationship for the aerosols hygroscopicity parameter” Canadian Chemistry Conference and Exhibition, Halifax, CA, June 2016 [oral presentation]
M. Boyer, R.Y.-W. Chang "The Hygroscopicity Parameter of Marine Organics in Sea Spray Aerosols", Canadian Society for Chemistry Conference, Halifax, CA, June 2016 [poster]
R. Chang, S. Hartery, "Characterizing Summer Fog Events in Halifax, Nova Scotia", Canadian Meteorological and Oceanographic Society Congress, Fredericton, CA, May 2016 [oral presentation]
R.Y.-W. Chang, P.Hayes, R. Leaitch, S. Sharma, F. Kolonjari, B. Croft, N.T. O'Neill, P. Fogal, J. Drummond, "Aerosol Size and Chemical Composition in the Canadian High Arctic", American Geophysical Union - Fall Meeting, San Francisco, USA, December 2015 [oral presentation]
S. Hartery, R.Y.-W. Chang, J. Lindaas, S. Miller, R. Commane, S. Wofsy, A. Karion, C. Sweeney, C. Miller, S. Dinardo, J. Henderson, M. Mountain, J. Eluskiewicz, N. Steiner, K. McDonald, J. Watts, J. Kimball "Constraining the 2012-2014 growing season Alaskan methane budget using CARVE aircraft measurements", AGU Fall Meeting, San Francisco, USA, December 2015 [poster]
M. Boyer, R.Y.-W. Chang "The Hygroscopicity Parameter of Marine Organics in Sea Spray Aerosols", AGU Fall Meeting, San Francisco, USA, December 2015 [poster]
R.Y.-W. Chang, C. Boudreau, A. Drodge, M. Boyer, "Characterizing Artificially Generated Marine Aerosol", NETCARE Annual Science Meeting, Toronto, CA, November 2015 [oral presentation]
M. Boyer, R.Y.-W. Chang, "The Hygroscopicity Parameter of Marine Organics in Sea Spray Aerosols", NETCARE Annual Science Meeting, Toronto, CA, November 2015 [poster]
R.Y.-W. Chang, K. von Salzen, “Understanding the factors that affect properties of marine and polar fog", MEOPAR Annual Science Meeting, Vancouver, CA, June 2015 [poster]
R. Chang, “Influence of Ocean Emissions on Arctic Aerosol” Department of Oceanography, Dalhousie University, Halifax, CA, March 2015. [invited talk]
A. Mercer, R.Y.-W. Chang, I. Folkins, “The diurnal cycle of the convective boundary layer over land from ACARS data", American Meteorological Society Student Conference, Phoenix, USA, January 2015 [poster]
R.Y.-W. Chang, "Methane from Northern Permafrost: A Cause for Concern?", Nova Scotian Institute of Science, Public Lecture Series, Halifax, CA, January 2015 [invited talk]
R.Y.-W. Chang, J.P.D. Abbatt, W. R. Leaitch, "The importance of including a hygroscopic organic fraction on aerosol-CCN closure", Telluride Science Research Center - Aerosol and Clouds Workshop, Telluride, USA, August 2014 [oral presentation]