Toward Optimal Closure of the Earth's Top-of-Atmosphere Radiation Budget Loeb, Norman G. ; Wielicki, Bruce A. ; Doelling, David R. ; Smith, G. Louis ; Keyes, Dennis F. ; Kato, Seiji ; Manalo-Smith, Natividad ; Wong, Takmeng Abstract Publication: Journal of Climate Pub Date: 2009 DOI: 10.1175/2008JCLI2637.1 Bibcode: 2009JCli...22..748L