Response of Upper Clouds in Global Warming Experiments Obtained Using a Global Nonhydrostatic Model with Explicit Cloud Processes

• DOI: 10.1175/jcli-d-11-00152.1
• Publication Date: 2011-10-11T12:31:39Z
• Authors: Masaki Satoh; Shin-ichi Iga; Hirofumi Tomita; Yoko Tsushima; Akira T. Noda
• Keywords: Mass flux; Liquid water path

Abstract Using a global nonhydrostatic model with explicit cloud processes, upper-cloud changes are investigated by comparing the present climate condition under perpetual July setting and warming condition, in which sea surface temperature (SST) is raised 2°. The sensitivity of cover ice water path (IWP) through set experiments. responses convective mass flux areas also examined, together those large-scale subsidence relative humidity subtropics. IWP found to be opposite; that is, as SST increases, averaged over tropics decreases, whereas increases. To clarify response, simple conceptual constructed. consists three columns deep core, anvil, environmental regions. vertical profiles hydrometers predicted microphysics processes kinematically prescribed circulation. reduction primary factor decrease condition. Even when different more comprehensive scheme used, due change confirmed.