1 Observation - and Model - Based Estimates of Particulate Dry Nitrogen 1 Deposition to the Oceans 2 Alex

70013, Greece 10 Department of Oceanography, University of Cape Town, South Africa. 11 Department of Geography, University of California at Los Angeles, California, USA 12 European Commission, Joint Research Centre, Ispra, Italy 13 Center for International Collaboration, Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba, Japan 14 Geosciences Division, Physical Research Laboratory, Ahmedabad, 380009, India 15 Departments of Oceanography and Atmospheric Sciences, Texas A&M University, College Station, Texas, USA 16 Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, USA 17 Climate and Radiation Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA 18 Universities Space Research Association, Columbia, MD, USA 19 NCAR Earth System Laboratory, National Center for Atmospheric Research, Boulder, CO, USA 20 Research Center for Environmental Changes, Academia Sinica, Nankang, Taipei, Taiwan 21 Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, Florida, USA 22 now at IMAU, University of Utrecht, 3584 CC Utrecht, Netherlands 23 now at School of Physics, Astronomy and Maths, University of Hertfordshire, Hatfield, UK 24 * Deceased 10 October 2014 25