Characterization of the Real Part of Dry Aerosol Refractive Index Over North America From the Surface to 12 km

National Aeronautics and Space Administration [NNX12AC10G, NNX14AP75G]; United States Navy Office of Naval Research [N00014-10-1-0811]; NASA Earth and Space Science Fellowship [NNX14AK79H]; NASA [NNX12AC03G, NNX15AT96G]; Visiting Scientist Program at the National Institute of Aerospace (NIA)