The mission of the Department of Physics at UMBC is based on three pillars: education, research and service to society. We strive to provide outstanding educational opportunities, through instruction and research, for undergraduate physics majors seeking preparation for graduate school or entry into the workforce. We also aim to train graduate students to be leaders in their field of research. Our research goal is to grow and sustain internationally recognized research groups in atmospheric physics, astrophysics, condensed matter physics and quantum optics and information science. Through our teaching of physics to non-science and non-physics majors and through our Physics for Secondary Education Teachers program, we provide professional service to the university community and the State.

Recent Submissions

  • Assessment of Planetary Boundary Layer parametrizations and urban heat island comparison: Impacts and implications for tracer transport 

    Lopez-Coto, Israel; Hicks, Micheal; Karion, Anna; Sakai, Ricardo K.; Prasad, Kuldeep; Whetstone, James (American Meteorological Society (AMS), 2020-08-27)
    Accurate simulation of planetary boundary layer height (PBLH) is key to greenhouse gas emission estimation, air quality prediction and weather forecasting. This manuscript describes an extensive performance assessment of ...
  • A new laser-based and ultra-portable gas sensor for indoor and outdoor formaldehyde (HCHO) monitoring 

    Shutter, Joshua D.; Allen, Norton T.; Hanisco, Thomas F.; Wolfe, Glenn M.; St. Clair, Jason M.; Keutsch, Frank N. (Copernicus Publications, 2019-11-22)
    n this work, a new commercially available, laser-based, and ultra-portable formaldehyde (HCHO) gas sensor is characterized, and its usefulness for monitoring HCHO mixing ratios in both indoor and outdoor environments is ...
  • Towards a satellite formaldehyde – in situ hybrid estimate for organic aerosol abundance 

    Liao, Jin; Hanisco, Thomas F.; Wolfe, Glenn M.; St. Clair, Jason; Jimenez, Jose L.; Campuzano-Jost, Pedro; Nault, Benjamin A.; Fried, Alan; Marais, Eloise A.; Abad, Gonzalo González; Chance, Kelly; Jethva, Hiren T.; Ryerson, Thomas B.; Warneke, Carsten; Wisthaler, Armin (Copernicus Publications, 2019-03-04)
    Organic aerosol (OA) is one of the main components of the global particulate burden and intimately links natural and anthropogenic emissions with air quality and climate. It is challenging to accurately represent OA in ...
  • Production of peroxy nitrates in boreal biomass burning plumes over Canada during the BORTAS campaign 

    Busilacchio, Marcella; Carlo, Piero Di; Aruffo, Eleonora; Biancofiore, Fabio; Salisburgo, Cesare Dari; Giammaria, Franco; Bauguitte, Stephane; Lee, James; Moller, Sarah; Hopkins, James; Punjabi, Shalini; Andrews, Stephen; Lewis, Alistair C.; Parrington, Mark; Palmer, Paul I.; Hyer, Edward; Wolfe, Glenn M. (Copernicus Publications, 2016-03-17)
    The observations collected during the BOReal forest fires on Tropospheric oxidants over the Atlantic using Aircraft and Satellites (BORTAS) campaign in summer 2011 over Canada are analysed to study the impact of forest ...
  • Evaluation of NASA's high-resolution global composition simulations: Understanding a pollution event in the Chesapeake Bay during the summer 2017 OWLETS campaign 

    Dacic, Natasha; Sullivan, John T.; Knowland, K. Emma; Wolfe, Glenn M.; Oman, Luke D.; Berkoff, Timothy A.; Gronoff, Guillaume P. (Elsevier, 2020-02-01)
    Recirculation of pollutants due to a bay breeze effect is a key meteorological mechanism impacting air quality near urban coastal areas, but regional and global chemical transport models have historically struggled to ...
  • Global airborne sampling reveals a previously unobserved dimethyl sulfide oxidation mechanism in the marine atmosphere 

    Veres, Patrick R.; Neuman, J. Andrew; Bertman, Timothy H.; Assaf, Emmanuel; Wolfe, Glenn M.; Williamson, Christina J.; Weinzierl, Bernadett; Tilmes, Simone; Thompson, Chelsea R.; Thames, Alexander B.; Schroder, Jason C.; Saiz‐Lopez, Alfonso; Rollins, Andrew W.; Roberts, James M.; Price, Derek; Peischl, Jeff; Nault, Benjamin A.; Møller, Kristian H.; Miller, David O.; Meinardi, Simone; Li, Qinyi; Lamarque, Jean-François; Kupc, Agnieszka; Kjaergaard, Henrik G.; Kinnison, Douglas; Jimenez, Jose L.; Jernigan, Christopher M.; Hornbrook, Rebecca S.; Hills, Alan; Dollner, Maximilian; Day, Douglas A.; Cuevas, Carlos A.; Campuzano-Jost, Pedro; Burkholder, James; Bui, T. Paul; Brune, William H.; Brown, Steven S.; Brock, Charles A.; Bourgeois, Ilann; Blake, Donald R.; Apel, Eric C.; Ryerson, Thomas B. (PNAS, 2020-02-18)
    Dimethyl sulfide (DMS), emitted from the oceans, is the most abundant biological source of sulfur to the marine atmosphere. Atmospheric DMS is oxidized to condensable products that form secondary aerosols that affect Earth’s ...
  • A corrected formulation of the Multilayer Model (MLM) for inferring gaseous dry deposition to vegetated surfaces 

    Saylor, Rick D.; Wolfe, Glenn M.; Meyers, Tilden P.; Hicks, Bruce B. (Elsevier, 2014-04-01)
    The Multilayer Model (MLM) has been used for many years to infer dry deposition fluxes from measured trace species concentrations and standard meteorological measurements for national networks in the U.S., including the ...
  • The Ozone Water–Land Environmental Transition Study: An Innovative Strategy for Understanding Chesapeake Bay Pollution Events 

    Sullivan, John T.; Berkoff, Timothy; Gronoff, Guillaume; Knepp, Travis; Pippin, Margaret; Allen, Danette; Twigg, Laurence; Swap, Robert; Tzortziou, Maria; Thompson, Anne M.; Stauffer, Ryan M.; Wolfe, Glenn M.; Flynn, James; Pusede, Sally E.; Judd, Laura M.; Moore, William; Baker, Barry D.; Al-Saadi, Jay; McGee, Thomas J. (American Meteorological Society (AMS), 2018-08-23)
    Coastal regions have historically represented a significant challenge for air quality investigations because of water–land boundary transition characteristics and a paucity of measurements available over water. Prior studies ...
  • Airborne measurements of BrO and the sum of HOBr and Br2 over the Tropical West Pacific from 1 to 15 km during the CONvective TRansport of Active Species in the Tropics (CONTRAST) experiment 

    Chen, Dexian; Huey, L. Gregory; Tanner, David J.; Salawitch, Ross J.; Anderson, Daniel C.; Wales, Pamela A.; Pan, Laura L.; Atlas, Elliot L.; Hornbrook, Rebecca S.; Apel, Eric C.; Blake, Nicola J.; Campos, Teresa L.; Donets, Valeria; Flocke, Frank M.; Hall, Samuel R.; Hanisco, Thomas F.; Hills, Alan J.; Honomichl, Shawn B.; Jensen, Jørgen B.; Kaser, Lisa; Montzka, Denise D.; Nicely, Julie M; Reeves, Michael J.; Riemer, Daniel D.; Schauffler, Sue M.; Ullmann, Kirk; Weinheimer, Andrew J.; Wolfe, Glenn M. (AGU Pubication, 2016-10-13)
    A chemical ionization mass spectrometer was used to measure BrO and HOBr + Br₂ over the Tropical West Pacific Ocean within the altitude range of 1 to 15 km, during the CONvective TRansport of Active Species in the Tropics ...
  • Nitrogen Oxides Emissions, Chemistry, Deposition, and Export Over the Northeast United States During the WINTER Aircraft Campaign 

    Jaeglé, L.; Shah, V.; Thornton, J. A.; Lopez‐Hilfiker, F. D.; Lee, B. H.; McDuffie, E. E.; Fibiger, D.; Brown, S. S.; Veres, P.; Sparks, T. L.; Ebben, C. J.; Wooldridge, P. J.; Kenagy, H. S.; Cohen, R. C.; Weinheimer, A. J.; Campos, T. L.; Montzka, D. D.; DiGangi, J. P.; Wolfe, G. M.; Hanisco, T.; Schroder, J. C.; Campuzano‐Jost, P.; Day, D. A.; Jimenez, J. L.; Sullivan, A. P.; Guo, H.; Weber, R. J. (AGU Pubication, 2018-10-09)
    We examine the distribution and fate of nitrogen oxides (NOx) in the lower troposphere over the Northeast United States (NE US) using aircraft observations from the Wintertime INvestigation of Transport, Emissions, and ...
  • Evidence for an unidentified non-photochemical ground-level source of formaldehyde in the Po Valley with potential implications for ozone production 

    Kaiser, J.; Wolfe, G. M.; Bohn, B.; Broch, S.; Fuchs, H.; Ganzeveld, L. N.; Gomm, S.; Häseler, R.; Hofzumahaus, A.; Holland, F.; Jäger, J.; Li, X.; Lohse, I.; Lu, K.; Prévôt, A. S. H.; Rohrer, F.; Wegener, R.; Wolf, R.; Mentel, T. F.; Kiendler-Scharr, A.; Wahner, A.; Keutsch, F. N. (Copernicus Publications, 2015-02-06)
    Ozone concentrations in the Po Valley of northern Italy often exceed international regulations. As both a source of radicals and an intermediate in the oxidation of most volatile organic compounds (VOCs), formaldehyde ...
  • Wintertime Overnight NOx Removal in a Southeastern United States Coal‐fired Power Plant Plume: A Model for Understanding Winter NOx Processing and its Implications 

    Fibiger, Dorothy L.; McDuffie, Erin E.; Dubé, William P.; Aikin, Kenneth C.; Lopez‐Hilfiker, Felipe D.; Lee, Ben H.; Green, Jamie R.; Fiddler, Marc N.; Holloway, John S.; Ebben, Carlena; Sparks, Tamara L.; Wooldridge, Paul; Weinheimer, Andrew J.; Montzka, Denise D.; Apel, Eric C.; Hornbrook, Rebecca S.; Hills, Alan J.; Blake, Nicola J.; DiGangi, Josh P; Wolfe, Glenn M.; Bililign, Solomon; Cohen, Ronald C.; Thornton, Joel A.; Brown, Steven S. (AGU Pubication, 2018-01-05)
    Nitric oxide (NO) is emitted in large quantities from coal‐burning power plants. During the day, the plumes from these sources are efficiently mixed into the boundary layer, while at night, they may remain concentrated due ...
  • Mapping hydroxyl variability throughout the global remote troposphere via synthesis of airborne and satellite formaldehyde observations 

    Wolfe, Glenn M.; Nicely, Julie M.; St. Clair, Jason M.; Hanisco, Thomas F.; Liao, Jin; Oman, Luke D.; Brune, William B.; Miller, David; Thames, Alexander; Abad, Gonzalo González; Ryerson, Thomas B.; Thompson, Chelsea R.; Peischl, Jeff; McKain, Kathryn; Sweeney, Colm; Wennberg, Paul O.; Kim, Michelle; Crounse, John D.; Hall, Samuel R.; Ullmann, Kirk; Diskin, Glenn; Bui, Paul; Chang, Cecilia; Dean-Day, Jonathan (PNAS, 2019-05-20)
    The hydroxyl radical (OH) fuels tropospheric ozone production and governs the lifetime of methane and many other gases. Existing methods to quantify global OH are limited to annual and global-to-hemispheric averages. Finer ...
  • BrO and inferred Bry profiles over the western Pacific: relevance of inorganic bromine sources and a Bry minimum in the aged tropical tropopause layer 

    Koenig, Theodore K.; Volkamer, Rainer; Baidar, Sunil; Dix, Barbara; Wang, Siyuan; Anderson, Daniel C.; Salawitch, Ross J.; Wales, Pamela A.; Cuevas, Carlos A.; Fernandez, Rafael P.; Saiz‐Lopez, Alfonso; Evans, Matthew J.; Sherwen, Tomás; Jacob, Daniel J.; Schmidt, Johan; Kinnison, Douglas; Lamarque, Jean-François; Apel, Eric C.; Bresch, James C.; Campos, Teresa; Flocke, Frank M.; Hall, Samuel R.; Honomichl, Shawn B.; Hornbrook, Rebecca; Jensen, Jørgen B.; Lueb, Richard; Montzka, Denise D.; Pan, Laura L.; Reeves, J. Michael; Schauffler, Sue M.; Ullmann, Kirk; Weinheimer, Andrew J.; Atlas, Elliot L.; Donets, Valeria; Navarro, Maria A.; Riemer, Daniel; Blake, Nicola J.; Chen, Dexian; Huey, L. Gregory; Tanner, David J.; Hanisco, Thomas F.; Wolfe, Glenn M. (Copernicus Publications, 2017-12-22)
    We report measurements of bromine monoxide (BrO) and use an observationally constrained chemical box model to infer total gas-phase inorganic bromine (Bry) over the tropical western Pacific Ocean (tWPO) during the CONTRAST ...
  • The NASA Carbon Airborne Flux Experiment (CARAFE): instrumentation and methodology 

    Wolfe, Glenn M.; Kawa, S. Randy; Hanisco, Thomas F.; Hannun, Reem A.; Newman, Paul A.; Swanson, Andrew; Bailey, Steve; Barrick, John; Thornhill, K. Lee; Diskin, Glenn; DiGangi, Josh; Nowak, John B.; Sorenson, Carl; Bland, Geoffrey; Yungel, James K.; Swenson, Craig A. (Copernicus Publications, 2018-03-28)
    The exchange of trace gases between the Earth's surface and atmosphere strongly influences atmospheric composition. Airborne eddy covariance can quantify surface fluxes at local to regional scales (1–1000 km), potentially ...
  • Formaldehyde in the Tropical Western Pacific: Chemical Sources and Sinks, Convective Transport, and Representation in CAM‐Chem and the CCMI Models 

    Anderson, Daniel C.; Nicely, Julie M.; Wolfe, Glenn M.; Hanisco, Thomas F.; Salawitch, Ross J.; Canty, Timothy P.; Dickerson, Russell R.; Apel, Eric C.; Baidar, Sunil; Bannan, Thomas J.; Blake, Nicola J.; Chen, Dexian; Dix, Barbara; Fernandez, Rafael P.; Hall, Samuel R.; Hornbrook, Rebecca S.; Huey, L. Gregory; Josse, Beatrice; Jöckel, Patrick; Kinnison, Douglas E.; Koenig, Theodore K.; Breton, Michael Le; Marécal, Virginie; Morgenstern, Olaf; Oman, Luke D.; Pan, Laura L.; Percival, Carl; Plummer, David; Revell, Laura E.; Rozanov, Eugene; Saiz‐Lopez, Alfonso; Stenke, Andrea; Sudo, Kengo; Tilmes, Simone; Ullmann, Kirk; Volkamer, Rainer; Weinheimer, Andrew J.; Zeng, Guang (AGU Pubication, 2017-10-06)
    Formaldehyde (HCHO) directly affects the atmospheric oxidative capacity through its effects on HOx. In remote marine environments, such as the tropical western Pacific (TWP), it is particularly important to understand the ...
  • Airborne measurements of the atmospheric emissions from a fuel ethanol refinery 

    Gouw, J. A. de; McKeen, S. A.; Aikin, K. C.; Brock, C. A.; Brown, S. S.; Gilman, J. B.; Graus, M.; Hanisco, T.; Holloway, J. S.; Kaiser, J.; Keutsch, F. N.; Lerner, B.M.; Liao, J.; Markovic, M. Z.; Middlebrook, A. M.; Min, K.-E.; Neuman, J. A.; Nowak, J. B.; Peischl, J.; Pollack, I. B.; Roberts, J. M.; Ryerson, T. B.; Trainer, M.; Veres, P. R.; Warneke, C.; Welti, A.; Wolfe, G. M. (AGU Pubication, 2015-04-08)
    Ethanol made from corn now constitutes approximately 10% of the fuel used in gasoline vehicles in the U.S. The ethanol is produced in over 200 fuel ethanol refineries across the nation. We report airborne measurements ...
  • An observationally constrained evaluation of the oxidative capacity in the tropical western Pacific troposphere 

    Nicely, Julie M; Anderson, Daniel C.; Canty, Timothy P.; Salawitch, Ross J.; Wolfe, Glenn M.; Apel, Eric C.; Arnold, Steve R.; Atlas, Elliot L.; Blake, Nicola J.; Bresch, James F.; Campos, Teresa L.; Dickerson, Russell R.; Duncan, Bryan; Emmons, Louisa K.; Evans, Matthew J.; Fernandez, Rafael P.; Flemming, Johannes; Hall, Samuel R.; Hanisco, Thomas F.; Honomichl, Shawn B.; Hornbrook, Rebecca S.; Huijnen, Vincent; Kaser, Lisa; Kinnison, Douglas E.; Lamarque, Jean‐Francois; Mao, Jingqiu; Monks, Sarah A.; Montzka, Denise D.; Pan, Laura L.; Riemer, Daniel D.; Saiz‐Lopez, Alfonso; Steenrod, Stephen D.; H. Stell, Meghan; Tilmes, Simone; Turquety, Solene; Ullmann, Kirk; Weinheimer, Andrew J. (AGU Pubication, 2016-06-05)
    Hydroxyl radical (OH) is the main daytime oxidant in the troposphere and determines the atmospheric lifetimes of many compounds. We use aircraft measurements of O₃, H₂O, NO, and other species from the Convective Transport ...
  • Impact of evolving isoprene mechanisms on simulated formaldehyde: An inter-comparison supported by in situ observations from SENEX 

    Marvin, Margaret R.; Wolfe, Glenn M.; Salawitch, Ross J.; Canty, Timothy P.; Roberts, Sandra J.; Travis, Katherine R.; Aikin, Kenneth C.; Gouw, Joost A. de; Graus, Martin; Hanisco, Thomas F.; Holloway, John S.; Hübler, Gerhard; Kaiser, Jennifer; Keutsch, Frank N.; Peischl, Jeff; Pollack, Ilana B.; Roberts, James M.; Ryerson, Thomas B.; Veres, Patrick R.; Warneke, Carsten (Elsevier, 2017-05-30)
    Isoprene oxidation schemes vary greatly among gas-phase chemical mechanisms, with potentially significant ramifications for air quality modeling and interpretation of satellite observations in biogenic-rich regions. In ...
  • Observations of atmosphere-biosphere exchange of total and speciated peroxynitrates: nitrogen fluxes and biogenic sources of peroxynitrates 

    Min, K.-E.; Pusede, S. E.; Browne, E. C.; LaFranchi, B. W.; Wooldridge, P. J.; Wolfe, G. M.; Harrold, S. A.; Thornton, J. A.; Cohen, R. C. (Copernicus Publications, 2012-10-29)
    Peroxynitrates are responsible for global scale transport of reactive nitrogen. Recent laboratory observations suggest that they may also play an important role in delivery of nutrients to plant canopies. We measured eddy ...

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