A parameterization for land-atmosphere-cloud exchange (PLACE): documentation and testing of a detailed process model of the partly cloudy boundary layer over heterogeneous land

Abstract

This paper presents a general description of, and demonstrates the capabilities of, the Parameterization for Land-Atmosphere-Cloud Exchange (PLACE). The PLACE model is a detailed process model of the partly cloudy atmospheric boundary layer and underlying heterogeneous land surfaces. In its development, particular attention has been given to three of the model's subprocesses: the prediction of boundary layer cloud amount, the treatment of surface and soil subgrid heterogeneity, and the liquid water budget. The model includes a three-parameter nonprecipitating cumulus model that feeds back to the surface and boundary layer through radiative effects. The model maintains a vertical column of liquid water that is divided into seven reservoirs, from the surface interception store down to bedrock. -from Authors