References for SSM/I Monthly Mean Precipitable Water (Greenwald and Stephens)

• Greenwald, T.J., G.L. Stephens, T.H. Vonder Haar, and D.L.Jackson, 1993: A physical retrieval of cloud liquid water over the globaloceans using Special Sensor Microwave/Imager (SSM/I) observations. J. Geophys. Res.,98, 18471-184888.