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Connor

Connor Flynn

Atmospheric Measurement & Data Sciences
Scientist
Pacific Northwest National Laboratory
PO Box 999
MSIN: K4-28
Richland, WA 99352

Biography

Through Dr. Flynn's role as instrument mentor for the ARM Program, he has developed expertise in measurement instrumentation--specifically in lidar and FTIR equipment, and with computer data acquisition techniques in general. His expertise ranges from low-level instrument design (specification and fabrication of components and subsystems) to assembly of complete systems, and extends to data synthesis of third-party equipment as well. In his capacity as ARM Translator for the Aerosol Working Group, he has gained expertise with in-situ aerosol instrumentation and with remote sensing instruments, having directed the routine production of advanced aerosol products from several suites of instruments including passive and active remote sensors as well as ground-based and air-borne in-situ sensors.

Complementary to each of these activities is his expertise with computers running essentially every common operating system (DOS, OS/2, Linux, Solaris, and all Windows variants). He is widely recognized for his superior skill with computer system configuration and maintenance. He also has experience with cross-platform development including familiarity with several shell script languages, programming languages, and development environments.

PNNL Publications

2018

  • Zuidema P., A. Sedlacek, C.M. Flynn, S.R. Springston, R. Delgadillo, J. Zhang, and A.C. Aiken, et al. 2018. "The Ascension Island boundary Layer in the remote southeast Atlantic is often smoky." Geophysical Research Letters 45, no. 9:4456-4465. PNNL-SA-131497. doi:10.1002/2017GL076926

2017

  • Kassianov E.I., E.A. Riley, J. Kleiss, C.N. Long, L.D. Riihimaki, D.M. Flynn, and C.M. Flynn, et al. 2017. "Macrophysical properties of continental cumulus clouds from active and passive remote sensing." In Remote Sensing of Clouds and the Atmosphere XXII, September 11-14, 2017, Warsaw, Poland. Proceedings of the SPIE, edited by A Comeron, EI Kassianov and K Schafer, 10424, Paper No.104240A. Bellingham, Washington:SPIE. PNNL-SA-128406. doi:10.1117/12.2278029
  • Kassianov E.I., J.C. Barnard, C.M. Flynn, L.D. Riihimaki, L.K. Berg, and D.A. Rutan. 2017. "Areal-Averaged Spectral Surface Albedo in an Atlanic Coastal Area: Estimation from Ground-Based Transmission." Atmosphere 8, no. 7:123. PNNL-SA-124561. doi:10.3390/atmos8070123
  • Kassianov E.I., M.S. Pekour, C.J. Flynn, L.K. Berg, J. Beranek, A. Zelenyuk, and C. Zhao, et al. 2017. "Large Contribution of Coarse Mode to Aerosol Microphysical and Optical Properties: Evidence from Ground-based Observations of a Transpacific Dust Outbreak at a High-Elevation North American Site." Journal of the Atmospheric Sciences 74, no. 5:1431-1443. PNNL-SA-118075. doi:10.1175/JAS-D-16-0256.1
  • Randles C., A.M. daSilva, V. Buchard, P. Colarco, A.S. Darmenov, R.C. Govindaraju, and A. Smirnov, et al. 2017. "The MERRA-2 Aerosol Reanalysis, 1980 onward, Part I: System Description and Data Assimilation Evaluation." Journal of Climate 30, no. 17:6823-6850. PNNL-SA-125181. doi:10.1175/JCLI-D-16-0609.1

2016

  • Berg L.K., J.D. Fast, J.C. Barnard, S. Burton, B. Cairns, D. Chand, and J.M. Comstock, et al. 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, no. 1:336-361. PNNL-SA-102905. doi:10.1002/2015JD023848
  • Kassianov E.I., C.M. Flynn, J.C. Barnard, B.D. Ermold, and L.K. Berg. 2016. "New Shortwave Array Spectroradiometer-Hemispheric (SAS-He): Hyperspectral Design and Initial Applications." In Remote Sensing of Clouds and the Atmosphere XXI, September 26,2016, Edinburgh, United Kingdom, 1001, Article No. 100010D. Bellingham, Washington:SPIE. PNNL-SA-121737. doi:10.1117/12.2241203
  • Yang W., A. Marshak, P.J. Mcbride, C.J. Chiu, Y. Knyazikhin, S. Schmidt, and C.M. Flynn, et al. 2016. "Observation of the spectrally invariant properties of clouds in cloudy-to-clear transition zones during the MAGIC field campaign." Atmospheric Research 182. PNNL-SA-121739. doi:10.1016/j.atmosres.2016.08.004

2015

  • Kassianov E.I., J.C. Barnard, C.J. Flynn, L.D. Riihimaki, and M.C. Marinovici. 2015. "How Well Can We Estimate Areal-Averaged Spectral Surface Albedo from Ground-Based Transmission in an Atlantic Coastal Area?." In Remote Sensing of Clouds and the Atmosphere XX, September 21, 2015, Toulouse, France. Proceedings of the SPIE, edited by A Comeron, EI Kassianov and K Schafer, 9640, Paper No. 96400K. Bellingham, Washington:SPIE. PNNL-SA-112719. doi:10.1117/12.2196875
  • Kassianov E.I., L.K. Berg, M.S. Pekour, C.J. Flynn, J.M. Tomlinson, D. Chand, and J.E. Shilling, et al. 2015. "Airborne Aerosol In situ Measurements during TCAP: A Closure Study of Total Scattering." Atmosphere 6, no. 8:1069-1101. PNNL-SA-110601. doi:10.3390/atmos6081069

2014

  • Kassianov E.I., J.C. Barnard, C.J. Flynn, L.D. Riihimaki, J. Michalsky, and G.B. Hodges. 2014. "Areal-averaged and Spectrally-resolved Surface Albedo from Ground-based Transmission Data Alone: Toward an Operational Retrieval." Atmosphere 5, no. 3:597-621. PNNL-SA-103422. doi:10.3390/atmos5030597
  • Kassianov E.I., J.C. Barnard, C.J. Flynn, L.D. Riihimaki, J. Michalsky, and G.B. Hodges. 2014. "Retrieval of Areal-averaged Spectral Surface Albedo from Transmission Data Alone: Computationally Simple and Fast Approach." In SPIE Remote Sensing of Clouds and the Atmosphere XIX, edited by Adolfo Comeron, 9242, 6 pages. Amsterdam:SPIE Proceedings. PNNL-SA-104307. doi:10.1117/12.2070282
  • Kassianov E.I., J.C. Barnard, M.S. Pekour, L.K. Berg, J.E. Shilling, C.J. Flynn, and F. Mei, et al. 2014. "Simultaneous Retrieval of Effective Refractive Index and Density from Size Distribution and Light Scattering Data: Weakly-Absorbing Aerosol." Atmospheric Measurement Techniques 7. PNNL-SA-101838. doi:10.5194/amt-7-3247-2014
  • Segal Rozenhaimer M., P.B. Russell, B. Schmid, J. Redemann, J.M. Livingston, C.J. Flynn, and R.R. Johnson, et al. 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, no. 5:2611-2628. PNNL-SA-97430. doi:10.1002/2013JD020884
  • Shinozuka Y., R.R. Johnson, C.J. Flynn, P.B. Russell, B. Schmid, J. Redemann, and S. Dunagan, et al. 2014. "Correction to “Hyperspectral Aerosol Optical Depths from TCAP Flights”." Journal of Geophysical Research. D. (Atmospheres) 119, no. 3:16921693. PNNL-SA-102146. doi:10.1002/jgrd.51089

2013

  • Dunagan S., R. Johnson, J. Zavaleta, P.B. Russell, B. Schmid, C.J. Flynn, and J. Redemann, et al. 2013. "Spectrometer for Sky-Scanning Sun-Tracking Atmospheric Research (4STAR): Instrument Technology." Remote Sensing of Environment 5, no. 8:3872-3895. PNNL-SA-96618. doi:10.3390/rs5083872
  • Kassianov E.I., C.J. Flynn, A.S. Koontz, C. Sivaraman, and J.C. Barnard. 2013. "Failure and Redemption of Multifilter Rotating Shadowband Radiometer (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great Plains (SGP) Sites." Atmosphere 4, no. 3:299-314. PNNL-SA-95655. doi:10.3390/atmos4030299
  • Shinozuka Y., R.R. Johnson, C.J. Flynn, P.B. Russell, B. Schmid, J. Redemann, and S. Dunagan, et al. 2013. "Hyperspectral Aerosol Optical Depths from TCAP Flights." Journal of Geophysical Research. D. (Atmospheres) 118, no. 21:12180-12194. PNNL-SA-97236. doi:10.1002/2013JD020596

2012

  • Kassianov E.I., C.J. Flynn, J. Redemann, B. Schmid, P.B. 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, edited by EI Kassianov, et al, 8534, Paper No. 85340J. Bellingham, Washington:SPIE Publishing. PNNL-SA-90262. doi:10.1117/12.974744
  • Kassianov E.I., C.J. Flynn, J. Redemann, B. Schmid, P.B. 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, no. 4:495-521. PNNL-SA-89271. doi:10.3390/atmos3040495
  • Liu J., Y. Zheng, Z. Li, C.J. Flynn, and M. Cribb. 2012. "Seasonal variations of aerosol optical properties, vertical distribution and associated radiative effects in the Yangtze Delta Region of China." Journal of Geophysical Research. D. (Atmospheres) 117. PNNL-SA-83276. doi:10.1029/2011JD016490

2011

  • Dupont J., M. Haeffelin, Y. Morille, J.M. Comstock, C.J. Flynn, C.N. Long, and C. Sivaraman, et al. 2011. "Cloud properties derived from two lidars over the ARM SGP site." Geophysical Research Letters 38. PNNL-SA-76764. doi:10.1029/2010GL046274
  • Kassianov E.I., J.C. Barnard, L.K. Berg, C.J. Flynn, and C.N. Long. 2011. "Sky Cover from MFRSR Observations." Atmospheric Measurement Techniques 4, no. 7:1463-1470. PNNL-SA-76980. doi:10.5194/amt-4-1463-2011
  • Kassianov E.I., J.C. Barnard, L.K. Berg, C.N. Long, and C.J. Flynn. 2011. "Shortwave Spectral Radiative Forcing of Cumulus Clouds from Surface Observations." Geophysical Research Letters 38. PNNL-SA-76469. doi:10.1029/2010GL046282
  • Kassianov E.I., J.C. Barnard, M.S. Pekour, C.J. Flynn, R. Ferrare, C.A. Hostetler, and J. Hair, et al. 2011. "Remote Sensing of Aerosol Properties during CARES." In Proceedings of the SPIE: Remote Sensing of Clouds and the Atmosphere XVI, September 21, 2011, Prague, Czech Republic, edited by EI Kassianov, 8177, Paper No. 81770J. Bellingham, Washington:SPIE. PNNL-SA-83337. doi:10.1117/12.897407
  • Kassianov E.I., M. Ovchinnikov, L.K. Berg, and C.J. Flynn. 2011. "Aerosol Retrievals under Partly Cloudy Conditions: Challenges and Perspectives." In Polarimetric Detection, Characterization, and Remote Sensing: NATO Science for Peace and Security Series C: Environmental Security, edited by MI Mishchenko, et al. 205-232. Dordrecht:Springer. PNNL-SA-77245.
  • Kassianov E.I., M. Ovchinnikov, L.K. Berg, and C.J. Flynn. 2011. "CONVENTIONAL CLEAR-SKY AEROSOL RETRIEVALS: DO THEY WORK FOR CLOUDY DAYS?." Atti Della Accademia Peloritana dei Pericolanti. Classe di Scienze Fisiche Matematiche e Naturali 89, no. 1:Article No. C1V89S1P047-1-4. PNWD-SA-9338. doi:10.1478/C1V89S1P047
  • Liu J., Y. Zheng, Z. Li, C.J. Flynn, E.J. Welton, and M. Cribb. 2011. "Transport, vertical structure and radiative properties of dust events in southeast China determined from ground and space sensors." Atmospheric Environment 45, no. 35:6469-6480. PNNL-SA-83210. doi:10.1016/j.atmosenv.2011.04.031
  • McFarquhar G., S.J. Ghan, J. Verlinde, A. Korolev, J.W. Strapp, B. Schmid, and J.M. Tomlinson, et al. 2011. "Indirect and Semi-Direct Aerosol Campaign: The Impact of Arctic Aerosols on Clouds." Bulletin of the American Meteorological Society 92, no. 2:183 - 201. PNNL-SA-70645. doi:10.1175/2010BAMS2935.1
  • Rambukkange M.P., J. Verlinde, E.W. Eloranta, C.J. Flynn, and E.E. Clothiaux. 2011. "Using Doppler spectra to separate hydrometeor populations and analyze ice precipitation in multilayered mixed-phase clouds." IEEE Geoscience and Remote Sensing Letters 8, no. 1:108-112. PNNL-SA-71373. doi:10.1109/LGRS.2010.2052781

2010

  • Gaustad K.L., C.J. Flynn, S.J. Beus, and B.D. Ermold. 2010. "The Development of QC Standards for ARM Data Products." In Proceedings of the 19th ACM International Symposium on High Performance Distributed Computing, 548-553. New York, New York:ACM. PNNL-SA-71148. doi:10.1145/1851476.1851556
  • Kassianov E.I., J.C. Barnard, L.K. Berg, C.J. Flynn, and C.N. Long. 2010. "Retrieval of Intensive Aerosol Properties from MFRSR observations: Partly Cloudy Cases." In Remote Sensing of Clouds and the Atmosphere XV: Proceedings of the SPIE, September 21, 2010, Toulouse, France, edited by RH Picard, K Schafer, A Comeron and M van Weele, 7827, Paper No. 7827Q. Bellingham, Washington:SPIE. PNNL-SA-74871. doi:10.1117/12.865761
  • Kassianov E.I., M. Ovchinnikov, L.K. Berg, S.A. McFarlane, C.J. Flynn, R. Ferrare, and C.A. Hostetler, et al. 2010. "A New Retrieval of Aerosol Optical Depth from Reflectance Ratios on Partly Cloudy Days: Development and Evaluation." In 13th Conference on Atmospheric Radiation, June 28-July 2, 2010, Portland, Oregon, Paper No. P2.18. Boston, Massachusetts:American Meteorological Society. PNNL-SA-72478.
  • Kassianov E.I., M. Ovchinnikov, L.K. Berg, S.A. McFarlane, C.J. Flynn, R. Ferrare, and C.A. Hostetler, et al. 2010. "Retrieval of Aerosol Optical Depth in Vicinity of Broken Clouds from Reflectance Ratios: Case Study." Atmospheric Measurement Techniques 3. PNNL-SA-70625. doi:10.5194/amt-3-1333-2010
  • Michalsky J.J., F. Denn, C.J. Flynn, G.B. Hodges, P. Kiedron, A.S. Koontz, and J. Schlemmer, et al. 2010. "Climatology of aerosol optical depth in north-central Oklahoma: 19922008." Journal of Geophysical Research. D. (Atmospheres) 115, no. D07203. PNNL-SA-72471. doi:10.1029/2009JD012197

2009

  • Kassianov E.I., L.K. Berg, S.A. McFarlane, C.J. Flynn, and D.D. Turner. 2009. "Long-term Statistics of Continental Cumuli: Does Aerosol Trigger Cumulus Variability?." In Current Problems in Atmospheric Radiation (IRS 2008): Proceedings of the International Radiation Symposium (IRC/IAMAS). AIP Conference Proceedings, 1100, 470-473. Melville, New York:American Institute of Physics. PNNL-SA-61626.
  • Kassianov E.I., M. Ovchinnikov, L.K. Berg, S.A. McFarlane, C.J. Flynn, R. Ferrare, and C.A. Hostetler. 2009. "The 3D Radiative Effects of Clouds in Aerosol Retrieval: Can we Remove Them?." In Remote Sensing of Clouds and the Atmosphere XIV: Proceedings of the SPIE, edited by RH Picard, K Schafer, A Comeron, EI Kassianov and CJ Mertens, 7475, Article No. 74750I. Bellingham, Washington:SPIE. PNNL-SA-73334. doi:10.1117/12.830179
  • Kassianov E.I., M. Ovtchinnikov, L.K. Berg, S.A. McFarlane, and C.J. Flynn. 2009. "A New Retrieval of Aerosol Optical Depth under Partly Cloudy Conditions with Multi-Spectral Measurements of Reflectance." In Proceedings of the International Radiation Symposium (IRS 2008): AIP Conference Proceedings, 1100, 263-266. Melville, New York:American Institute of Physics. PNNL-SA-61627. doi:10.1063/1.3116965
  • Kassianov E.I., M. Ovtchinnikov, L.K. Berg, S.A. McFarlane, and C.J. Flynn. 2009. "Retrieval of Aerosol Optical Depth in Vicinity of Broken Clouds from Reflectance Ratios: Sensitivity Study." Journal of Quantitative Spectroscopy and Radiative Transfer 110, no. 14-16:1677-1689. PNNL-SA-63745.
  • Kassianov E.I., S.A. McFarlane, J.C. Barnard, C.J. Flynn, A. Slingo, N. Bharmal, and G.J. Robinson, et al. 2009. "International RADAGAST Experiment in Niamey, Niger: Changes and Drivers of Atmospheric Radiation Balance." In Current Problems in Atmospheric Radiation (IRS 2008): Proceedings of the International Radiation Symposium. AIP Conference Proceedings, 1100, 537-540. Melville, New York:American Institute of Physics. PNNL-SA-61628.
  • Long C.N., E.G. Dutton, J.A. Augustine, W.J. Wiscombe, M.F. Wild, S.A. McFarlane, and C.J. Flynn. 2009. "Significant Decadal Brightening of Downwelling Shortwave in the Continental United States." Journal of Geophysical Research. D. (Atmospheres) 114. PNNL-SA-62156. doi:10.1029/2008JD011263
  • McFarlane S.A., E.I. Kassianov, J.C. Barnard, C.J. Flynn, and T.P. Ackerman. 2009. "Surface shortwave aerosol radiative forcing during the Atmospheric Radiation Measurement Mobile Facility deployment in Niamey, Niger." Journal of Geophysical Research. D. (Atmospheres) 114. PNNL-SA-60673. doi:10.1029/2008JD010491
  • Schmid B., C.J. Flynn, R.K. Newsom, D.D. Turner, R. Ferrare, M.F. Clayton, and E. Andrews, et al. 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, no. D22207. PNNL-SA-67186. doi:10.1029/2009JD012682

2008

  • Kassianov E.I., M. Ovtchinnikov, L.K. Berg, S.A. McFarlane, and C.J. Flynn. 2008. "Retrieval of Aerosol Optical Depth in Vicinity of Broken Clouds from Reflectance Ratios: A Novel Approach." In Remote Sensing of Clouds and the Atmosphere XIII, 7107, 71070V. Bellingham, Washington:SPIE. PNNL-SA-61953. doi:10.1117/12.801288
  • Slingo A., N. Bharmal, G.J. Robinson, J. Settle, R.P. Allan, H.E. White, and P.J. Lamb, et al. 2008. "Overview of observations from the RADAGAST experiment in Niamey, Niger: Meteorology and thermodynamic variables." Journal of Geophysical Research. D. (Atmospheres) 113, no. D00E01. PNNL-SA-61852. doi:10.1029/2008JD009909
  • Webley P.W., D. Atkinson, R.L. Collins, K. Dean, J. Fochesatto, K. Sassen, and C.F. Cahill, et al. 2008. "Predicting and validating the tracking of a Volcanic Ash Cloud during the 2006 Eruption of Mt. Augustine Volcano." Bulletin of the American Meteorological Society 89, no. 11:1647-1658. PNNL-SA-56129. doi:10.1175/2008BAMS2579.1

2007

  • Alexandrov M., P. Kiedron, J.J. Michalsky, G. Hodges, C.J. Flynn, and A.A. Lacis. 2007. "Optical depth measurements by shadow-band radiometers and their uncertainties." Applied Optics 46, no. 33:8027-8038. PNNL-SA-57389.
  • Alexandrov M., P. Kiedron, J.J. Michalsky, G. Hodges, C.J. Flynn, and A.A. Lacis. 2007. "Optical depth measurements by shadow-band radiometers and their uncertainties." Applied Optics 46, no. 33:8027-8038. PNNL-SA-57889.
  • Flynn C.J., A. Mendoza, Y. Zheng, and S. Mathur. 2007. "Novel polarization-sensitive micropulse lidar measurement technique." Optics Express 15, no. 6:2785-2790. PNNL-SA-54319.
  • Kassianov E.I., C.J. Flynn, T.P. Ackerman, and J.C. Barnard. 2007. "Aerosol Single-Scattering Albedo and Asymmetry Parameter from MFRSR Observations during the ARM Aerosol IOP 2003." Atmospheric Chemistry and Physics 7, no. 12:3341-3351. PNNL-SA-52291.
  • Turner D.D., A.M. Vogelmann, R.T. Austin, J.C. Barnard, K. Cady-Pereira, C. Chiu, and S.A. Clough, et al. 2007. "Thin Liquid Water Clouds: Their Importance and Our Challenge." Bulletin of the American Meteorological Society 88, no. 2:177-190. PNNL-SA-47822.

2006

  • Ghan S.J., T.A. Rissman, R. Elleman, R. Ferrare, D.D. Turner, C.J. Flynn, and J. Wang, et al. 2006. "Use of in situ cloud condensation nuclei, extinction, and aerosol size distribution Measurements to test a method for retrieving cloud condensation nuclei profiles from surface measurements." Journal of Geophysical Research. D. (Atmospheres) 111, no. D05S10. PNNL-SA-43562. doi:10.1029/2004JD005752
  • Schmid B., R. Ferrare, C.J. Flynn, R. Elleman, D. Covert, A. Strawa, and E.J. Welton, et al. 2006. "How Well Do State-of-the-Art Techniques Measuring the Vertical Profile of Tropospheric Aerosol Extinction Compare?." Journal of Geophysical Research. D. (Atmospheres) 111, no. D5:D05S07, doi: 10.1029/2005JD005837. PNNL-SA-44010.

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