Jefferson Robert Snider
Atmospheric Science
Professor Emeritus

Education:
- Ph.D., Atmospheric Science, University of Wyoming, 1989
- M.S., Atmospheric Science, University of Arizona, 1984
- B.S., Chemistry, University of Oregon, 1980
General:
Water in its various phases (vapor, liquid, and ice), and water's interactions with other atmospheric constituents (aerosols and trace gases), are the topics I'm exploring.
Research Areas:
- Precipitation
- Aerosols
- Cloud Condensation Nuclei
- Lidar and Radar Remote Sensing
Open Source Engineering Thermodynamics Textbook
Open Source Cloud Physics Textbook
Grant Funding:
Title: Collaborative Research: Aerosol Properties and Autoconversion during Cold-Air outbreak Experiment in the Sub-Arctic Region (CAESAR)
Source: National Science Foundation
Award Amount: $88,000
Period: May 2023 to June 2026
Publications:
Lintong, C., S. Mahant, E. Weissburg, A.M. Robertson, J.R. Snider, and M.D. Petters, Observed aerosol properties and aerosol forecast evaluation in the Arctic region during cold air outbreaks, Atmospheric Research, 335, 2026, https://doi.org/10.1016/j.atmosres.2026.108781, 2026
Mahant, S., J.R. Snider, S.S. Petters, and M.D. Petters, Effect of Aerosol Size on Glass Transition Temperature, J. Phys. Chem. Lett., 15 (29), 7509-7515, https://doi.org/10.1021/acs.jpclett.4c01415, 2024
Marlow, S. A., J. M. Frank, M. Burkhart, B. Borkhuu, S. E. Fuller, and J. R. Snider, Snowfall Measurements at Wind-Exposed and Sheltered Sites in the Rocky Mountains of Southeastern Wyoming. J. Appl. Meteor. Climatol., 63, 181–196, https://doi.org/10.1175/JAMC-D-22-0093.1, 2024
Fuller, S., Marlow, S. A., Haimov, S., Burkhart, M., Shaffer, K., Morgan, A., and Snider, J. R.: W-band S–Z relationships for rimed snow particles: observational evidence from combined airborne and ground-based observations, Atmos. Meas. Tech., 16, 6123–6142, https://doi.org/10.5194/amt-16-6123-2023, 2023
Deng, M., Volkamer, R.M., Wang, Z., Snider, J.R., Kille, N., and Romero-Alvarez, L.J., Wildfire Smoke Observations in the Western United States from the Airborne Wyoming Cloud Lidar during the BB-FLUX Project. Part II: Vertical Structure and Plume Injection Height, Journal of Atmospheric and Oceanic Technology, 39, 559-572, https://doi.org/10.1175/JTECH-D-21-0093.1, 2022
Deng, M., Wang, Z., Volkamer, R., Snider, J.R., Oolman, L., Plummer, D. M., Kille, N., Zarzana, K. J., Lee, C. F., Campos, T., Mahon, N. R., Glover, B., Burkhart, M. D., and Morgan, A., Wildfire Smoke Observations in the Western United States from the Airborne Wyoming Cloud Lidar during the BB-FLUX Project. Part I: Data Description and Methodology, Journal of Atmospheric and Oceanic Technology, 39, 545-558, https://doi.org/10.1175/JTECH-D-21-0092.1, 2022
Fossum, K.N., J.Ovadnevaite, D.Ceburnis, J.Preißler, J.R.Snider, R.Huang, A.Zuend, and C.O’Dowd, Sea-spray regulates sulfate cloud droplet activation over oceans, Nature Climate and Atmospheric Science, 3, 14, https://doi.org/10.1038/s41612-020-0116-2, 2020
Fults, S. L., Massmann, A. K., Montecinos, A., Andrews, E., Kingsmill, D. E., Minder, J. R., Garreaud, R. D., and Snider, J.R. : Wintertime Aerosol Measurements during the Chilean Coastal Orographic Precipitation Experiment, Atmospheric Chemistry and Physics, 19, 12377–12396, https://doi.org/10.5194/acp-2019-185, 2019
Ortega, J., J.R.Snider, J.N.Smith, and J.M.Reeves, Comparison of aerosol measurement systems during the 2016 airborne ARISTO campaign, Aerosol Science and Technology, 8, 871-885, https://doi.org/10.1080/02786826.2019.1610554, 2019
Tessendorf, S.A., et al, A transformational approach to winter orographic weather modification research: The SNOWIE Project. Bull. Amer. Meteor. Soc., 100, 71–92, https://doi.org/10.1175/BAMS-D-17-0152.1, 2019
Zelasko, N., Wettlaufer, A., Borkhuu, B., Burkhart, M., Campbell, L. S., Steenburgh, W. J., and Snider, J. R.: Hotplate precipitation gauge calibrations and field measurements, Atmos. Meas. Tech., 11, 441-458, https://doi.org/10.5194/amt-11-441-2018, 2018
Snider, J.R., D.Leon and Z.Wang, Droplet Concentration and Spectral Broadening in Southeast Pacific Stratocumulus, J. Atmos. Sci., 74, 719-749, https://doi.org/10.1175/JAS-D-16-0043.1, 2017
Reddington, C.L., K.S. Carslaw, P.Stier, N.Schutgens, H.Coe, D.Liu , J.Allan, J.Browse, K.J.Pringle, L.A.Lee, M.Yoshioka, J.S.Johnson, L.A.Regayre, D. V.Spracklen, G.W.Mann, A.Clarke, M.Hermann, S.Henning, H.Wex, T.B.Kristensen, W.R.Leaitch, U.Pöschl, D.Rose, M.O.Andreae, J.Schmale, Y.Kondo, N.Oshima, J.P.Schwarz, A.Nenes, B.Anderson, G.C.Roberts, J.R.Snider, C.Leck, P.K.Quinn, X.Chi, A.Ding, J.L.Jimenez, Q.Zhang, The Global Aerosol Synthesis and Science Project (GASSP): Measurements and modelling to reduce uncertainty, Bull. Amer. Met. Soc., 98, 1857-1877, https://doi.org/10.1175/BAMS-D-15-00317.1, 2017
Massmann, A.K., J.R. Minder, R.D. Garreaud, D.E. Kingsmill, R.A. Valenzuela, A. Montecinos, S.L. Fults, and J.R. Snider, The Chilean Coastal Orographic Precipitation Experiment: Observing the Influence of Microphysical Rain Regimes on Coastal Orographic Precipitation. J. Hydrometeor., 18, 2723–2743, https://doi.org/10.1175/JHM-D-17-0005.1, 2017
Peng, L., Snider, J.R., and Wang, Z., Ice crystal concentrations in wave clouds: dependencies on temperature, D > 0.5 μm aerosol particle concentration, and duration of cloud processing, Atmos. Chem. Phys., 15, 6113-6125, https://doi.org/10.5194/acp-15-6113-2015, 2015
DeMott, P.J., A.J.Prenni, G.R.McMeeking, R.C.Sullivan, M.D.Petters, Y.Tobo, M.Niemand, O.Möhler, J.R.Snider, Z.Wang and S.M.Kreidenweis, Integrating laboratory and field data to quantify the immersion freezing ice nucleation activity of mineral dust particles, Atmos. Chem. Phys., 15, 393-409, https://doi.org/10.5194/acp-15-393-2015, 2015
Vali, G.V., and J.R.Snider, Time-dependent freezing rate parcel model, Atmos. Chem. Phys., 15, 2071-2079, https://doi.org/10.5194/acp-15-2071-2015, 2015
Cai, Y., J.R.Snider and P. Wechsler, Calibration of the passive cavity aerosol spectrometer probe for airborne determination of the size distribution, Atmos. Meas. Tech., 6, 2349-2358, https://doi.org/10.5194/amt-6-2349-2013, 2013
Wolfe, J.P. and J.R.Snider, Reply to comments on “A Relationship between Reflectivity and Snow Rate for a High-Altitude S-Band Radar”, J. Appl. Meteor. Climatol., 730-731, https://doi.org/10.1175/JAMC-D-12-0277.1, 2013
Wood, R., D.Leon, M.Lebsock, J.R.Snider and A.D.Clarke, Precipitation driving of droplet concentration variability in marine low clouds, J. Geophys. Res., 117, https://doi.org/10.1029/2012JD018305, 2012
Vali, G., D. Leon, and J. R. Snider, Ground-layer snow clouds, Quarterly Journal of the Royal Meteorological Society, https://doi.org/10.1002/qj.1882, 2012
Wang, Z., J. French, G. Vali, P. Wechsler, S. Haimov, A. Rodi, M. Deng, D. Leon, J.R. Snider, L. Peng, and A. L. Pazmany, Single aircraft integration of remote sensing and in situ sampling for the study of cloud microphysics and dynamics, Bull. Amer. Meteor. Soc., 93, 653–668, https://doi.org/10.1175/BAMS-D-11-00044.1, 2012
Wolfe, J.P., and J.R.Snider, A Relationship between Reflectivity and Snow Rate for a High-Altitude S-Band Radar, J. Appl. Meteor. Climatol., 51, 1111–1128, https://doi.org/10.1175/JAMC-D-11-0112.1, 2012
E. Saide, S. N. Spak, G. R. Carmichael, M. A. Mena-Carrasco, S. Howell, D. C. Leon, J. R. Snider, A. R. Bandy, J. L. Collett, K. B. Benedict, S. P. de Szoeke, L. N. Hawkins, G. Allen, I. Crawford, J. Crosier, and S. R. Springston, Evaluating WRF-Chem aerosol indirect effects in Southeast Pacific marine stratocumulus during VOCALS-Rex, Atmos. Chem. Phys., 12, 3045-3064, https://doi.org/10.5194/acp-12-3045-2012, 2012
Kazil, J., H.Wang, G.Feingold, A.D.Clarke, J.R.Snider, and A.R.Bandy, Modeling chemical and aerosol processes in the transition from closed to open cells during VOCALS-REx, Atmos. Chem. Phys., 11, 7491-7514, https://doi.org/10.5194/acp-11-7491-2011, 2011
Snider, J.R., H.Wex, D.Rose, A.Kristensson, F.Stratmann, T.Hennig, S.Henning, A.Kiselev, M.Bilde, M.Burkhart, U.Dusek, G.Frank, A.Kiendler-Scharr, Th.F.Mentel, M.D.Petters, and U.Pöschl, Intercomparison of CCN and hygroscopic fraction measurements: Coated soot particles investigated during the LACIS Experiment in November (LExNo), J. Geophys. Res., 115, D11205, https://doi.org/10.1029/2009JD012618, 2010
Stratmann, F., M.Bilde, U.Dusek, G.Frank, T.Hennig, S.Henning, A.Kiendler-Scharr, A.Kiselev, A.Kristensson, I.Lieberwirt, Th.F.Mentel, U.Pöschl, D.Rose, J.Schneider, J.R.Snider, R.Tillmann, S. Walter, and H.Wex, Examination of laboratory-generated coated soot particles: An overview over the LExNo campaign, J. Geophys. Res., 115, D11203, https://doi.org/10.1029/2009JD012628, 2010
Henning, S., H. Wex, C. Wennrich, T. Hennig , A.Kiselev, J.R.Snider, D.Rose, U.Dusek, G. P.Frank, U. Pöschl, A.Kristensson, M.Bilde, R.Tillmann, A.Kiendler-Scharr, Th.F.Mentel, S.Walter, J.Schneider and F.Stratmann, Soluble mass, hygroscopic growth, and droplet activation of coated soot particles during LACIS Experiment in November (LExNo), J. Geophys. Res., 115, D11206, https://doi.org/10.1029/2009JD012626, 2010
Ackerman, A.S., M.van Zanten, B.Stevens, V.Savic-Jovcic, C.S.Bretherton, A.Chlond, J.-C.Golaz, H.Jiang, M.Khairoutdinov, S.K.Krueger, D.C.Lewellen, A.Lock, C.-H.Moeng, K.Nakamura, M.Ovtchinnikov, M.D.Petters, J.R.Snider, S.Weinbrecht, and M.Zulauf, Large-eddy simulations of a drizzling, stratocumulus-topped marine boundary Layer, Mon. Wea. Rev., 137, 1083-1110, https://doi.org/10.1175/2008MWR2582.1, 2009
Snider, J.R. and M.D.Petters, Optical particle counter measurement of marine aerosol hygroscopic growth, Atmos. Chem. Phys., 8, 1949-1962, https://doi.org/10.5194/acp-8-1949-2008, 2008
Snider, J.R., M.D.Petters, P.Wechsler and P.Liu, Supersaturation in the Wyoming CCN instrument, J. Atmos. Oceanic Technol., 23, 1323-1339, https://doi.org/10.1175/JTECH1916.1, 2006
Petters, M.D., J.R. Snider, B. Stevens, G. Vali, I. Faloona and L. Russell, Accumulation mode aerosol, pockets of open cells, and particle nucleation in the remote subtropical pacific marine boundary layer, J. Geophys. Res., 111, D02206, https://doi.org/10.1029/2004JD005694, 2006
McFiggans,G., P.Artaxo, U.Baltensperger, H.Coe, M.C.Facchini, G.Feingold, S.Fuzzi, M.Gysel, A.Laaksonen, U.Lohmann, T.F.Mentel, D.M.Murphy, C.D.O'Dowd, J.R.Snider, E.Weingartner, The effect of physical and chemical aerosol properties on warm cloud droplet activation, Atmos. Chem. Phys., 6, 2593-2649, https://doi.org/10.5194/acp-6-2593-2006, 2006
Petters, M.D., S.Kreidenweis, J.R.Snider, K.Koehler, Q.Wang, A.Prenni, P.DeMott, Cloud droplet activation of polymerized organic aerosols, Tellus, 58B, 196-205, https://doi.org/10.1111/j.1600-0889.2006.00181.x, 2006
Twohy, C., M.D.Petters, J.R.Snider, B.Stevens, W.Tahnk, M.Wetzel, L.Russell and F.Burnet, Evaluation of the aerosol indirect effect in marine stratiform clouds microphysics: Droplet number, size, liquid water path and radiative impact, J. Geophys. Res., 110, D08203, https://doi.org/10.1029/2004JD005116, 2005
Huffman, W.A. and J.R.Snider, Ice-oxyhydrocarbon interactions in the troposphere, J. Geophys. Res., 109, D01302, https://doi.org/10.1029/2003JD003778, 2004
Snider, J.R., S.Guibert, J.-L. Brenguier, and J.-P.Putaud, Aerosol activation in marine stratocumulus clouds: Part – II Köhler and parcel theory closure studies, J. Geophy. Res., 108, 8629, https://doi.org/10.1029/2002JD002692, 2003
Guibert, S., J.R.Snider, and J.-L. Brenguier, Aerosol activation in marine stratocumulus clouds: Part I - Validation of parameters for a closure study, J. Geophys. Res.,108, 8628 https://doi.org/10.1029/2002JD002678, 2003
Menon, S., J.-L.Brenguier, O.Boucher, P.Davison, A.D. Del Genio, J.Feichter, S.Ghan, S.Guibert, X.Liu, U.Lohmann, H.Pawlowska, J.E.Penner, J.Quass, D.L.Roberts, L.Schüller and J.R.Snider, Evaluating aerosol/cloud/radiation process parameterizations with single column models and ACE-2 cloudy column observations, J. Geophys. Res., 108, 4762, https://doi.org/10.1029/2003JD003902, 2003
Stevens, B., D.H.Lenschow, G.Vali, H.Gerber, A.Bandy, B.Blomquist, J.-L. Brenguier, C.S.Bretherton, F.Burnet, T.Compos, S.Chai, I.Faloona, D.Friesen, S.Haimov, K.Laursen, D.K.Lilly, S.M.Loehrer, S.P.Malinowski, B.Morely, M.D.Petters, D.C.Rogers, L.Russell, V.Savic-Jovcic, J.R.Snider, D.Straub, M.J.Szumowski, H.Takagi, D.C.Thorton, M.Tschudi, C.Twohy, M.Wetzel and M.C. van Zanten, Dynamics and Chemistry of Marine Stratocumulus -- DYCOMS-II, Bull. Amer. Met. Soc., 84, 579–593, https://doi.org/10.1175/BAMS-84-5-579, 2003
Han, Z., D.C.Montague, and J.R.Snider, Airborne measurements of aerosol extinction in the lower and middle troposphere over Wyoming, USA, Atmos. Env., 37, 789-802, https://doi.org/10.1016/S1352-2310(02)00952-4, 2003
Snider, J.R., and J.-L. Brenguier, Cloud condensation nuclei and cloud droplet measurements during ACE-2, Tellus, 52B, 828-842, https://doi.org/10.1034/j.1600-0889.2000.00044.x, 2000
Lokupitiya, E., N.L. Stanton, R.S. Seville, and J.R. Snider, Effects of increased nitrogen deposition on soil nematodes in alpine tundra soil, 44, 591-608, Pedobiologia, https://doi.org/10.1078/S0031-4056(04)70074-8, 2000
Brenguier, J-L, P.Y.Chuang, Y.Fouquart, D.W.Johnson, F.Parol, H.Pawlowska, J.Pelon, L.Schüller, F.Schröder, and J.R.Snider, An overview of the ACE-2 cloudy column closure experiment, Tellus, 52B, 815-827, https://doi.org/10.1034/j.1600-0889.2000.00047.x, 2000
Chuang, P.Y., D.R.Collins, H.Pawlowska, J.R.Snider, H.H.Jonsson, J.L.Brenguier, R.C.Flagan, and J.H.Seinfeld, CCN measurements during ACE-2 and their relationship to cloud microphysical properties, Tellus, 52B, 843-867, https://doi.org/10.1034/j.1600-0889.2000.00018.x, 2000
Snider, J.R., and J.Huang, Factors influencing the retention of hydrogen peroxide and molecular oxygen in rime ice, J. Geophys. Res., 103, 1405-1415, https://doi.org/10.1029/97JD02847, 1998
Snider, J.R., and T. Murphy, Airborne hydrogen peroxide measurements in supercooled clouds, J. Geophys. Res., 100, 23039-23050, https://doi.org/10.1029/95JD01942, 1995
Snider, J.R., and G. Vali, Sulfur dioxide oxidation in winter orographic clouds, J. Geophys. Res., 99, 18713-18733, https://doi.org/10.1029/94JD01522, 1994
Snider, J.R., D.C.Montague, and G.Vali, Hydrogen peroxide retention in rime ice, J. Geophys. Res., 97, 7569-7578, https://doi.org/10.1029/92JD00237, 1992
Snider, J.R., and A. Garcia, Summertime cloud immersion frequency at Elk Mountain, Wyoming. in Effects of Air Pollution on Western Forests, Editors R.K.Olson and A.S.Lefohn, ISBN 0923204032,1989
Snider, J.R., and G. Vali, Rime ice composition at the Elk Mountain Observatory: Atmospheric processes, acid and nutrient deposition rates in Chemical Quality of Water and the Hydrologic Cycle. Editors. D.McKnight and R.C.Averett. Lewis Publishers. Chelsea, Michigan, ISBN 9780873710817, 1987
Caple, G., D.C.Sands, R.G.Layton, W.A.Zucker, and J.R.Snider, Biogenic ice nucleation: Could it be metabolically initiated?, J. Theo. Biol., 119, 37-45, https://doi.org/10.1016/S0022-5193(86)80049-2. 1986
Snider, J.R., R.G.Layton, G.Caple, and D.Chapman, Bacteria as condensation nuclei, J. Rech. Atmos., 19, 139-145, 1985
Snider, J.R., and G.A.Dawson, Tropospheric light alcohols, carbonyls, and acetonitrile : Concentrations in the southwestern United States and Henry's Law data, J. Geophys. Res., 90, 3797-3805, https://doi.org/10.1029/JD090iD02p03797, 1985
Snider, J.R., and G.A.Dawson, Surface Acetonitrile near Tucson, Arizona, Geophys. Res. Lett., 11, 241-242, https://doi.org/10.1029/GL011i003p00241, 1984

