Browsing by Author "Fisher, Jenny"

Now showing items 1-6 of 6

    • Error Correlation Between CO2 and CO as Constraint for CO2 Flux Inversions Using Satellite Data 

      Wang, Huiming; Jacob, Daniel J.; Kopacz, Monika; Jones, D.B.A.; Suntharalingam, P.; Fisher, Jenny Allison; Nassar, R.; Pawson, S.; Nielsen, J.E. (Copernicus Publications, 2009)
      Inverse modeling of CO2 satellite observations to better quantify carbon surface fluxes requires a chemical transport model (CTM) to relate the fluxes to the observed column concentrations. CTM transport error is a major ...

    • Gas-Particle Partitioning of Atmospheric Hg(II) and Its Effect on Global Mercury Deposition 

      Amos, Helen Marie; Jacob, Daniel J.; Holmes, C. D.; Fisher, Jenny Allison; Wang, Qiaoqiao; Yantosca, Robert M.; Corbitt, Elizabeth Sturges; Galarneau, E.; Rutter, A. P.; Gustin, M. S.; Steffen, A.; Schauer, J. J.; Graydon, J. A.; Louis, V. L. St.; Talbot, R. W.; Edgerton, E. S.; Zhang, Y.; Sunderland, Elynor M (Copernicus GmbH, 2012)
      Atmospheric deposition of Hg(II) represents a major input of mercury to surface environments. The phase of Hg(II) (gas or particle) has important implications for deposition. We use long-term observations of reactive gaseous ...

    • A mass budget for mercury and methylmercury in the Arctic Ocean 

      Soerensen, Anne; Jacob, Daniel James; Schartup, Amina; Fisher, Jenny; Lehnherr, Igor; St. Louis, Vincent L.; Heimbürger, Lars-Eric; Sonke, Jeroen E.; Krabbenhoft, David P.; Sunderland, Elynor M (Wiley-Blackwell, 2016)
      Elevated biological concentrations of methylmercury (MeHg), a bioaccumulative neurotoxin, are observed throughout the Arctic Ocean, but major sources and degradation pathways in seawater are not well understood. We develop ...

    • Meteorological Modes of Variability for Fine Particulate Matter (PM2.5) Air Quality in the United States: Implications for PM2.5 Sensitivity to Climate Change 

      Tai, A. P. K.; Mickley, Loretta J.; Jacob, Daniel J.; Leibensperger, E; Zhang, L.; Fisher, Jenny Allison; Pye, H. O. T. (European Geosciences Union, 2012)
      We applied a multiple linear regression model to understand the relationships of PM2.5 with meteorological variables in the contiguous US and from there to infer the sensitivity of PM2.5 to climate change. We used 2004–2008 ...

    • Riverine source of Arctic Ocean mercury inferred from atmospheric observations 

      Fisher, Jenny Allison; Jacob, Daniel J.; Soerensen, Anne Laerke; Amos, Helen Marie; Steffen, Alexandra; Sunderland, Elsie M. (Springer Nature, 2012)
      Methylmercury is a potent neurotoxin that accumulates in aquatic food webs. Human activities, including industry and mining, have increased inorganic mercury inputs to terrestrial and aquatic ecosystems. Methylation of ...

    • Sources of carbonaceous aerosols and deposited black carbon in the Arctic in winter-spring: implications for radiative forcing 

      Wang, Qiaoqiao; Jacob, Daniel James; Fisher, Jenny Allison; Mao, Jialin; Leibensperger, E; Carouge, C. C.; Le Sager, P; Kondo, Y.; Jimenez, J. L.; Cubison, M. J.; Doherty, S. J. (European Geosciences Union, 2011)
      We use a global chemical transport model (GEOS-Chem CTM) to interpret observations of black carbon (BC) and organic aerosol (OA) from the NASA ARCTAS aircraft campaign over the North American Arctic in April 2008, as well ...