Now showing items 1-20 of 13823

    • 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 Dialogue Concerning the Essence and Role of Information in the World System 

      Burgin, Mark; Cárdenas-García, Jaime F. (MDPI, 2020-08-21)
      The goal of this paper is to represent two approaches to the phenomenon of information, explicating its nature and essence. In this context, Mark Burgin demonstrates how the general theory of information (GTI) describes ...
    • A Framework for Situation-Aware Access Control in Federated Data-as-a-Service Systems Based on Query Rewriting 

      Oni, Samson; Chen, Zhiyuan; Crainiceanu, Adina; Joshi, Karuna Pande; Needham, Don (IEEE, 2020-10-19)
      Organizations often need to share mission dependent data in a secure and flexible way. Examples include contact tracing for a contagious disease such as COVID-19, maritime search and rescue operations, or creating a ...
    • Pressure Measurements Using an Airborne Differential Absorption Lidar. Part I: Analysis of the Systematic Error Sources 

      Flamant, Cyrille N.; Schwemmer, Geary K.; Korb, C. Laurence; Evans, Keith D.; Palm, Stephen P. (American Meteorological Society (AMS), 2013-09-06)
      Remote airborne measurements of the vertical and horizontal structure of the atmospheric pressure field in the lower troposphere are made with an oxygen differential absorption lidar (DIAL). A detailed analysis of this ...
    • Determining Cloud Thermodynamic Phase from the Polarized Micro Pulse Lidar 

      Lewis, Jasper R.; Campbell, James R.; Lolli, Simone; Stewart, Sebastian A.; Tan, Ivy; Welton, Ellsworth J. (Copernicus Publications, 2020-08-18)
      A method to distinguish cloud thermodynamic phase from polarized Micro Pulse Lidar (MPL) measurements is described. The method employs a simple enumerative approach to classify cloud layers as either liquid water, ice ...
    • Spermathecal variation in temperate Opiliones 

      Zulekha, Karachiwalla; Tagide, deCarvalho; Mercedes, Burns (Oxford University Press, 2020-08-17)
      Most arachnid fertilization occurs internally, allowing for a variety of post-copulatory mechanisms to take place. Females are expected to exert some level of control over sperm fate when 1) the point of gametic fusion is ...
    • Women's-Gender-Sexuality-Feminist Studies: The Politics of Departmental Naming 

      Bhatt, Amy
      As universities and colleges commemorate the founding of departments and programs dedicated to the study of women, gender, sexuality, and feminism, these celebratory moments have also been a time to reflect on the many ...
    • Climate and season are associated with prevalence and distribution of trans-hemispheric blue crab reovirus (Callinectes sapidus reovirus 1) 

      Zhao, Mingli; Behringer, Donald C.; Bojko, Jamie; Kough, Andrew S.; Plough, Louis; Tavares, Camila Prestes dos Santos; Aguilar-Perera, Alfonso; Reynoso, Omar Shamir; Seepersad, Govind; Maharaj, Omardath; Sanders, Matthew B.; Carnales, Daniela; Fabiano, Graciela; Carnevia, Daniel; Freeman, Mark A.; Atherley, Nicole A. M.; Medero-Hernández, Lexa D.; Schott, Eric J. (MEPS, 2020-08-13)
      Among the many Callinectes spp. across the western Atlantic, the blue crab C. sapidus has the broadest latitudinal distribution, encompassing both tropical and temperate climates. Its life history varies latitudinally, ...
    • Role of Spatial Context in Adversarial Robustness for Object Detection 

      Saha, Aniruddha; Subramanya, Akshayvarun; Patil, Koninika; Pirsiavash, Hamed
      The benefits of utilizing spatial context in fast object detection algorithms have been studied extensively. Detectors increase inference speed by doing a single forward pass per image which means they implicitly use ...
    • 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 ...
    • Universal Litmus Patterns: Revealing Backdoor Attacks in CNNs 

      Kolouri, Soheil; Saha, Aniruddha; Pirsiavash, Hamed; Hoffmann, Heiko
      The unprecedented success of deep neural networks in many applications has made these networks a prime target for adversarial exploitation. In this paper, we introduce a benchmark technique for detecting backdoor attacks ...
    • 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 ...