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Beat Schmid

Atmospheric Sciences & Global Change
Pacific Northwest National Laboratory
PO Box 999
MSIN: K9-24
Richland, WA 99352


Dr. Beat Schmid is an Associate Director in the Atmospheric Sciences and Global Change Division of the Earth & Biological Sciences Directorate, at PNNL. He leads 35 staff members in the Atmospheric Measurements and Data Science group.

Dr. Schmid is also the Manager of the DOE ARM Aerial Facility, which provides airborne measurements required to answer science questions proposed by the atmospheric research community.

Dr. Schmid is an expert in airborne atmospheric research. He has been involved as a participant or leader in well over a dozen large multi-agency aircraft campaigns and has served on the Science Teams for two NASA satellite instruments. He is an author of 93 peer-reviewed journal publications.

Dr. Schmid has been was awarded two DOE Appreciation Awards and five NASA Group Achievement Awards, including for the development of world's first Airborne Sun-Tracking and Scanning Spectrometer (4STAR).

Dr. Schmid has been with PNNL since 2006. Previously he was a Group Leader and Senior Scientist with the Bay Area Environmental Research Institute where he worked in conjunction with the NASA Ames Research Center in Moffett Field, CA.

Research Interests

  • Airborne atmospheric research
  • Solar radiation instrumentation
  • Aerosol closure studies
  • Lidar and satellite validation

Education and Credentials

  • Ph.D, Physics, 1995, University of Bern, Switzerland
  • M.S., Liz. Phil. Nat., 1991, University of Bern, Switzerland

Affiliations and Professional Service

  • Association for Unmanned Vehicle Systems International, member
  • American Geophysical Union, member
  • Associate Editor, Journal Geophysical Research - Clouds and Aerosols (2002- 2012)

Awards and Recognitions

  • Five NASA Group Achievement Awards: INTEX (2005), SOLVE II (2004), and ARCTAS (2009) Science Teams, 4STAR Development Team (2011), SEAC4RS (2014)
  • Two DOE Appreciation Awards for dedicated service as Chair of the ARM Aerosol Working Group and Member of the ARM Climate Research Facility Science Board

PNNL Publications


  • Martin ST, P Artaxo, L Machado, A Manzi, R Augusto Ferreira de Souza, C Schumacher, J Wang, T Biscaro, J Brito, A Calheiros, K Jardine, A Medeiros, B Portela, SS de Sa, K Adachi, AC Aiken, R Albrecht, ML Alexander, MO Andreae, H Barbosa, PR Buseck, D Chand, JM Comstock, DA Day, MK Dubey, J Fan, JD Fast, G Fisch , E Fortner, S Giangrande, MK Gilles, AH Goldstein, AB Guenther, JM Hubbe, MP Jensen, JL Jimenez, FN Keutsch, SW Kim, C Kuang, A Laskin, K McKinney, F Mei, M Miller, R Nascimento, T Pauliquevis, MS Pekour, J Peres, T Petaja, C Pohlker, U Poschl, LV Rizzo, B Schmid, JE Shilling, MAF Silva Dias, JN Smith, JM Tomlinson, J Tota, and M Wendisch. 2017. "The Green Ocean Amazon Experiement (GoAmazon2014/5) Observes Pollution Affecting Gases, Aerosols, Clouds and Rainfall over the Rain Forest." Bulletin of the American Meteorological Society 98(5):981-980.  doi:10.1175/BAMS-D-15-00221.1


  • Berg LK, JD Fast, JC Barnard, S Burton, B Cairns, D Chand, JM Comstock, S Dunagan, RA Ferrare, CJ Flynn, J Hair, CA Hostetler, JM Hubbe, A Jefferson, R Johnson, EI Kassianov, CD Kluzek, P Kollias, K Lamer, K Lantz, F Mei, MA Miller, J Michalsky, I Ortega, MS Pekour, R Rogers, P Russell, J Redemann, A Sedlacek, M Segal Rozenhaimer, B Schmid, JE Shilling, Y Shinozuka, SR Springston, JM Tomlinson, M Tyrrell, J Wilson, RM Volkamer, A Zelenyuk, and CM Berkowitz. 2016. "The Two-Column Aerosol Project: Phase I - Overview and Impact of Elevated Aerosol Layers on Aerosol Optical Depth." Journal of Geophysical Research. D. (Atmospheres) 121(1):336-361.  doi:10.1002/2015JD023848
  • Cecchini MA, LAT Machado, JM Comstock, F Mei, J Wang, J Fan, JM Tomlinson, B Schmid, R Albrecht, ST Martin, and P Artaxo. 2016. "Impacts of the Manaus pollution plume on the microphysical properties of Amazonian warm-phase clouds in the wet season." Atmospheric Chemistry and Physics 16(11):7029-7041.  doi:10.5194/acp-16-7029-2016
  • de Boer G, MD Ivey, B Schmid, SA McFarlane, and RC Petty. 2016. "Unmanned Platforms Monitor the Arctic Atmosphere." Eos 97(February 22, 2016):, doi:10.1029/2016EO046441
  • de Boer G, S Palo, B Agrow, G LoDolce, J Mack, RS Gao, H Telg, C Trussell, J Fromm, CN Long, GI Bland, J Maslanik, B Schmid, and T Hock. 2016. "The Pilatus Unmanned Aircraft System for Lower Atmospheric Research." Atmospheric Measurement Techniques 9(4):1845-1587.  doi:10.5194/amt-9-1845-2016
  • Lim KS, LD Riihimaki, JM Comstock, B Schmid, C Sivaraman, Y Shi, and G McFarquhar. 2016. "Evalution of long-term surface-retrieved cloud-droplet number concentration with in situ aircraft observations." Journal of Geophysical Research. D. (Atmospheres) 121(5):2318-2331.  doi:10.1002/2015JD024082
  • Sayer AM, C Hsu, C Bettenhausen, JN Lee, J Redemann, B Schmid, and Y Shinozuka. 2016. "Extending 'Deep Blue' aerosol retrieval coverage to cases of absorbing aerosols above clouds: sensitivity analysis and first case studies." Journal of Geophysical Research. D. (Atmospheres) 121(9):4930-4854.  doi:10.1002/2015JD024729
  • Thompson DR, I McCubbin, BC Gao, RO Green, AA Matthews, F Mei, KG Meyer, S Platnick, B Schmid, JM Tomlinson, and E Wilcox. 2016. "Measuring cloud thermodynamic phase with shortwave infrared imaging spectroscopy." Journal of Geophysical Research. D. (Atmospheres) 121(15):9174-9190.  doi:10.1002/2016JD024999
  • Wang J, R Krejci, S Giangrande, C Kuang, H Barbosa, J Brito, S Carbone, X Chi, JM Comstock, F Ditas, J Lavric, HE Manninen, F Mei, D Moran-Zuloaga, C Pohlker, ML Pohlker, J Saturno, B Schmid, RA Souza, SR Springston, JM Tomlinson, T Toto, D Walter, D Wimmer, JN Smith, M Kulmala, L Machado, P Artaxo, MO Andreae, T Petaja, and ST Martin. 2016. "Amazon boundary layer aerosol concentration sustained by vertical transport during rainfall." Nature 539(7629):416-419.  doi:10.1038/nature19819


  • Kassianov EI, LK Berg, MS Pekour, CJ Flynn, JM Tomlinson, D Chand, JE Shilling, M Ovchinnikov, JC Barnard, A Sedlacek, and B Schmid. 2015. "Airborne Aerosol In situ Measurements during TCAP: A Closure Study of Total Scattering ." Atmosphere 6(8):1069-1101.  doi:10.3390/atmos6081069


  • Muller D, CA Hostetler, RA Ferrare, SP Burton, E Chemyakin, A Kolgotin, J Hair, AL Cook, D Harper, RR Rogers, R Hare, C Cleckner, M Obland, JM Tomlinson, LK Berg, and B Schmid. 2014. "Airborne Multiwavelength High-Spectral-Resolution Lidar (HSRL-2) Observations During TCAP 2012: Vertical Proles of Optical and Microphysical Properties of a Smoke/Urban Haze Plume Over the Northeastern Coast of the US." Atmospheric Measurement Techniques 7(10):3487-3496.  doi:10.5194/amt-7-3487-2014
  • Rosenfeld D, R Chemke, K Prather, K Suski, JM Comstock, B Schmid, JM Tomlinson, and H Jonsson. 2014. "Polluting of Winter Convective Clouds upon Transition from Ocean Inland Over Central California: Contrasting Case Studies." Atmospheric Research 135-136:112-127.  doi:10.1016/j.atmosres.2013.09.006
  • Schmid B, JM Tomlinson, JM Hubbe, JM Comstock, F Mei, D Chand, MS Pekour, CD Kluzek, E Andrews, S Biraud, and G McFarquhar. 2014. "The DOE ARM Aerial Facility." Bulletin of the American Meteorological Society 95(5):723-742.  doi:10.1175/BAMS-D-13-00040.1
  • Segal Rozenhaimer M, PB Russell, B Schmid, J Redemann, JM Livingston, CJ Flynn, RR Johnson, S Dunagan, Y Shinozuka, JR Herman, A Cede, N Abuhassan, JM Comstock, JM Hubbe, A Zelenyuk, and JM Wilson. 2014. "Tracking Elevated Pollution Layers with a Newly Developed Hyperspectral Sun/Sky Spectrometer (4STAR): Results from the TCAP 2012 and 2013 Campaigns." Journal of Geophysical Research. D. (Atmospheres) 119(5):2611-2628.  doi:10.1002/2013JD020884
  • Shinozuka Y, RR Johnson, CJ Flynn, PB Russell, B Schmid, J Redemann, S Dunagan, CD Kluzek, JM Hubbe, M Segal-Rosenheimer, JM Livingston, T Eck, R Wagener, L Gregory, D Chand, LK Berg, R Rogers, RA Ferrare, J Hair, CA Hostetler, and SP Burton. 2014. "Correction to “Hyperspectral Aerosol Optical Depths from TCAP Flights”." Journal of Geophysical Research. D. (Atmospheres) 119(3):1692-1693.  doi:10.1002/jgrd.51089


  • Cazorla A, R Bahadur, K Suski, JF Cahill, D Chand, B Schmid, V Ramanathan, and K Prather. 2013. "Relating Aerosol Absorption due to Soot, Organic Carbon, and Dust to Emission Sources Determined from In-situ Chemical Measurements." Atmospheric Chemistry and Physics 13(18):9337-9350.  doi:10.5194/acp-13-9337-2013
  • Dunagan S, R Johnson, J Zavaleta, PB Russell, B Schmid, CJ Flynn, J Redemann, Y Shinozuka, J Livingston, and M Segal Rozenhaimer. 2013. "Spectrometer for Sky-Scanning Sun-Tracking Atmospheric Research (4STAR): Instrument Technology." Remote Sensing of Environment 5(8):3872-3895.  doi:10.3390/rs5083872
  • Rosenfeld D, R Chemke, PJ DeMott, RC Sullivan, RM Rasmussen, F McDonough, JM Comstock, B Schmid, JM Tomlinson, H Jonsson, K Suski, A Cazorla, and K Prather. 2013. "The Common Occurrence of Highly Supercooled Drizzle and Rain near the Coastal Regions of the Western United States." Journal of Geophysical Research. D. (Atmospheres) 118(17):9819-9833.  doi:10.1002/jgrd.50529
  • Shinozuka Y, RR Johnson, CJ Flynn, PB Russell, B Schmid, J Redemann, S Dunagan, CD Kluzek, JM Hubbe, M Segal-Rosenheimer, JM Livingston, T Eck, R Wagener, L Gregory, D Chand, LK Berg, R Rogers, RA Ferrare, J Hair, CA Hostetler, and SP Burton. 2013. "Hyperspectral Aerosol Optical Depths from TCAP Flights." Journal of Geophysical Research. D. (Atmospheres) 118(21):12180-12194.  doi:10.1002/2013JD020596


  • Pekour MS, B Schmid, D Chand, JM Hubbe, CD Kluzek, DA Nelson, JM Tomlinson, and DJ Cziczo. 2012. "Development of a new airborne humidigraph system." Aerosol Science and Technology 47(2):201-207.  doi:10.1080/02786826.2012.741274
  • Kassianov EI, CJ Flynn, J Redemann, B Schmid, PB Russell, and A Sinyuk. 2012. "Aerosol Properties from Multi-spectral and Multi-angular Aircraft 4STAR Observations: Expected Advantages and Challenges." In Remote Sensing of Clouds and the Atmosphere XVII; and Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VIII, September 24-27, 2012, Edinburgh, United Kingdom. Proceedings of the SPIE, vol. 8534, ed. EI Kassianov, et al, p. Paper No. 85340J.  SPIE Publishing, Bellingham, WA.  doi:10.1117/12.974744
  • Kassianov EI, CJ Flynn, J Redemann, B Schmid, PB Russell, and A Sinyuk. 2012. "Initial Assessment of the Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research (4STAR)-Based Aerosol Retrieval: Sensitivity Study." Atmosphere 3(4):495-521.  doi:10.3390/atmos3040495
  • Vogelmann AM, G McFarquhar, JA Ogren, DD Turner, JM Comstock, G Feingold, CN Long, H Jonsson, A Bucholtz, DR Collins, GS Diskin, H Gerber, P Lawson, R Woods, E Andrews, HJ Yang, CJ Chiu, D Hartsock, JM Hubbe, C Lo, A Marshak, J Monroe, SA McFarlane, B Schmid, JM Tomlinson, and T Toto. 2012. "RACORO Extended-Term Aircraft Observations of Boundary-Layer Clouds." Bulletin of the American Meteorological Society 93(6):861-878. 
  • Zaveri RA, WJ Shaw, DJ Cziczo, B Schmid, R Ferrare, ML Alexander, M Alexandrov, RJ Alvarez, WP Arnott, D Atkinson, S Baidar, RM Banta, JC Barnard, J Beranek, LK Berg, FJ Brechtel, WA Brewer, JF Cahill, B Cairns, CD Cappa, D Chand, S China, JM Comstock, MK Dubey, RC Easter, Jr, MH Erickson, JD Fast, C Floerchinger, BA Flowers, E Fortner, JS Gaffney, MK Gilles, K Gorkowski, WI Gustafson, Jr, MS Gyawali, J Hair, M Hardesty, JW Harworth, SC Herndon, N Hiranuma, CA Hostetler, JM Hubbe, JT Jayne, H Jeong, BT Jobson, EI Kassianov, LI Kleinman, CD Kluzek, B Knighton, KR Kolesar, C Kuang, A Kubatova, AO Langford, A Laskin, NS Laulainen, RD Marchbanks, C Mazzoleni, F Mei, RC Moffet, DA Nelson, M Obland, H Oetjen, TB Onasch, I Ortega, M Ottaviani, MS Pekour, KA Prather, JG Radney, R Rogers, SP Sandberg, A Sedlacek, C Senff, G Senum, A Setyan, JE Shilling, MKB Shrivastava, C Song, SR Springston, R Subramanian, K Suski, JM Tomlinson, RM Volkamer, HA Wallace, J Wang, AM Weickmann, DR Worsnop, XY Yu, A Zelenyuk, and Q Zhang. 2012. "Overview of the 2010 Carbonaceous Aerosols and Radiative Effects Study (CARES)." Atmospheric Chemistry and Physics 12(16):7647-7687.  doi:10.5194/acp-12-7647-2012


  • McFarquhar G, B Schmid, A Korolev, JA Ogren, PB Russell, JM Tomlinson, DD Turner, and WJ Wiscombe. 2011. "Airborne Instrumentation Needs for Climate and Atmospheric Research." Bulletin of the American Meteorological Society 92(9):1193-1196.  doi:10.1175/2011BAMS3180.1
  • McFarquhar G, SJ Ghan, J Verlinde, A Korolev, JW Strapp, B Schmid, JM Tomlinson, M Wolde, SD Brooks, DJ Cziczo, MK Dubey, PhD, J Fan, CJ Flynn, I Gultepe, JM Hubbe, MK Gilles, A Laskin, P Lawson, WR Leaitch, PS Liu, X Liu, D Lubin, C Mazzoleni, AM Macdonald, RC Moffet, H Morrison, M Ovchinnikov, MD Shupe, DD Turner, S Xie, A Zelenyuk, K Bae, M Freer, and A Glen. 2011. "Indirect and Semi-Direct Aerosol Campaign: The Impact of Arctic Aerosols on Clouds ." Bulletin of the American Meteorological Society 92(2):183 - 201.  doi:10.1175/2010BAMS2935.1


  • Guan H, B Schmid, A Bucholtz, and R Bergstrom. 2010. "Sensitivity of shortwave radiative flux density, forcing, and heating rates to the aerosol vertical profile ." Journal of Geophysical Research. D. (Atmospheres) 115:Art. No. D06209.  doi:10.1029/2009JD012907
  • Long CN, A Bucholtz, H Jonsson, B Schmid, AM Vogelmann, and J Wood. 2010. "A Method of Correcting for Tilt From Horizontal in Downwelling Shortwave Irradiance Measurements on Moving Platforms." Open Atmospheric Science Journal 4:78-87.  doi:10.2174/1874282301004010078


  • Schmid B, CJ Flynn, RK Newsom, DD Turner, R Ferrare, MF Clayton, E Andrews, JA Ogren, RR Johnson, PB Russell, W Gore, and R Dominguez. 2009. "Validation of aerosol extinction and water vapor profiles from routine Atmospheric Radiation Measurement Climate Research Facility measurements ." Journal of Geophysical Research. D. (Atmospheres) 114(D22207):, doi:10.1029/2009JD012682
  • Alexandrov M, B Schmid, DD Turner, B Cairns, V Oinas, AA Lacis, S Gutman, ER Westwater, A Smirnov, and J Eilers. 2009. "Columnar water vapor retrievals from multifilter rotating shadowband radiometer data ." Journal of Geophysical Research. D. (Atmospheres) 114(D02306):, doi:10.1029/2008JD010543
  • Waquet F, B Cairns, KD Knobelspiesse, J Chowdhary, LD Travis, B Schmid, and M Mishchenko. 2009. "Polarimetric Remote Sensing of Aerosols over Land ." Journal of Geophysical Research. D. (Atmospheres) 114(D01206):, doi:10.1029/2008JD010619


  • Glantz CS, KW Burk, CM Berkowitz, SJ Ghan, B Schmid, AC Janetos, WJ Shaw, and AH McMakin. 2008. "Pacific Northwest National Laboratory (PNNL)/Hanford Site." Chapter 3 in The Federal Plan for Meteorological Services and Supporting Research Fiscal Year 2008, vol. FCM-P1-2007, ed. F Estis and K Barnett, pp. 198-199.  Office of the Federal Coordinator for Meteorology, US Department of Commerce, Silver Spring, MD. 
  • Knobelspiesse KD, B Cairns, B Schmid, MO Roman, and CB Schaaf. 2008. "Surface BRDF estimation from an aircraft compared to MODIS and ground estimates at the Southern Great Plains site." Journal of Geophysical Research. D. (Atmospheres) 113(D20105):, doi:10.1029/2008JD010062
  • Livingston JM, B Schmid, PB Russell, JR Podolske, J Redemann, and GS Diskin. 2008. "Comparison of Water Vapor Measurements by Airborne Sun Photometer and Diode Laser Hygrometer on the NASA DC-8." Journal of Atmospheric and Oceanic Technology 25(10):1733-1743.  doi:10.1175/2008JTECHA1047.1
  • Magi B, Q Fu, J Redemann, and B Schmid. 2008. "Using aircraft measurements to estimate the magnitude and uncertainty of the shortwave direct radiative forcing of southern African biomass burning aerosol." Journal of Geophysical Research. D. (Atmospheres) 113(D5):Art. No. D05213.  doi:10.1029/2007JD009258
  • McComiskey A, SE Schwartz, B Schmid, H Guan, ER Lewis, P Ricchiazzi, and JA Ogren. 2008. "Direct Aerosol Forcing: Calculation from Observables and Sensitivities to Inputs." Journal of Geophysical Research. D. (Atmospheres) 113(D9):Art. No. D09202.  doi:10.1029/2007JD009170


  • Kuzmanoski M, MA Box, B Schmid, GP Box, J Wang, PR Russel, D Bates, H Jonsson, EJ Welton, and JH Seinfeld. 2007. "Aerosol properties computed from aircraft-based observations during the ACE-Asia campaign: 2. A case study of lidar ratio closure." Aerosol Science and Technology 41(3):231-243.  doi:10.1080/02786820601146977
  • Kuzmanoski M, MA Box, B Schmid, PB Russell, and J Redemann. 2007. "A case study of modeled aerosol optical properties during the SAFARI 2000 campaign." Applied Optics 46(22):5263-5275. 
  • Kuzmanoski M, MA Box, GP Box, B Schmid, J Wang, PB Russell, H Jonsson, and JH Seinfeld. 2007. "Aerosol properties computed from aircraft-based observations during the ACE-Asia campaign: 1. Aerosol size distributions retrieved from optical thickness measurements." Aerosol Science and Technology 41(2):202-216.  doi:10.1080/02786820601126789
  • Livingston J, B Schmid, J Redemann, PB Russell, S Ramirez, J Eilers, W Gore, S Howard, J Pommier, EJ Fetzer, SW Seemann, E Borbas, D Wolfe, and AM Thompson. 2007. "Comparison of Water Vapor Measurements by Airborne Sun photometer and Near-Coincident In Situ and Satellite Sensors during INTEX-ITCT 2004." Journal of Geophysical Research. D. (Atmospheres) 112(D12S16):, doi:10.1029/2006JD007733
  • Russell PB, JM Livingston, J Redemann, B Schmid, S Ramirez, J Eilers, RA Kahn, DA Chu, LA Remer, PK Quinn, MJ Rood, and W Wang. 2007. "Multi-Grid-Cell Validation of Satellite Aerosol Property Retrievals in INTEX/ITCT/ICARTT 2004." Journal of Geophysical Research. D. (Atmospheres) 112:Art. No. D12509. 

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