Implementing of lognormal humidity and cloud-related control variables for the NCEP GSI hybrid EnVAR Assimilation scheme.

Steven J Fletcher, Colorado State University, Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States, Daryl Kleist, National Center for Environmental Prediction (NCEP), NOAA Center for Weather and Climate Prediction, College Park, MD, United States and Kayo Ide, University of Maryland, College Park, MD, United States