@InProceedings{KotsakisSaCaCoVaSzSw:2019:CoNeSu,
               author = "Kotsakis, Alexander and Santos, Fernando and Caicedo, Vanessa and 
                         Connors, Vickie and Valin, Luke and Szykman, James and Swap, 
                         Robert",
          affiliation = "{NASA Goddard Space Flight Center} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and UMBC/GSFC and {Virginia 
                         Commonwealth University} and {Environmental Protection Agency 
                         Research Triangle Park} and {National Exposure Research 
                         Laboratory} and {North-West University}",
                title = "Connecting near surface in-situ measurements to ground based total 
                         column measurements from Pandora",
                 year = "2019",
         organization = "AGU Fall Meeting",
             abstract = "As the primary precursor to ozone production, NO2 exhibits a large 
                         amount of heterogeneity on vertical and horizontal scales. While 
                         there is a dense network of surface air quality monitoring 
                         stations that measure NO2 at the surface level, boundary layer 
                         meteorology and emission height impact the amount of NO2 within 
                         the boundary layer. In an effort to better quantify air pollution 
                         affecting humans at the surface, there have been efforts to use 
                         satellites and surface monitoring cohesively to better understand 
                         emission sources and subsequent chemistry. However, the current 
                         fleet of polar orbiting satellites only provide a once daily 
                         snapshot of column NO2. Pandora, a ground-based spectrometer 
                         system, allows us to measure column NO2 at a much higher temporal 
                         resolution, that is on a similar temporal scale of a traditional 
                         in-situ surface NO2 monitor. Using a combination of surface 
                         in-situ, Pandora, and ceilometer data, we investigate the 
                         variability of NO2 at the surface and within the boundary layer. 
                         The combination of these observations will provide better insight 
                         into the decoupling of the near surface and lofted NO2 caused by 
                         mixing within the boundary layer. Furthermore, the results of this 
                         study are essential for future analysis and validation of 
                         geostationary air quality observations.",
  conference-location = "San Francisco, CA",
      conference-year = "09-13 dec.",
             language = "en",
           targetfile = "kotsakis_connecting.pdf",
        urlaccessdate = "01 maio 2024"
}