Multiscale Organization of Convection Simulated with Explicit Cloud Processes on an Aquaplanet
作者： Tomoe Nasuno , Hirofumi Tomita , Shinichi Iga , Hiroaki Miura , Masaki Satoh
DOI: 10.1175/JAS3948.1
关键词: Atmospheric sciences 、 Equatorial waves 、 Cloud physics 、 NICAM 、 Convection 、 Cloud computing 、 Mesoscale meteorology 、 Meteorology 、 Geology 、 Wavelength 、 Atmospheric model
摘要: Abstract This study investigated the multiscale organization of tropical convection on an aquaplanet in a model experiment with horizontal mesh size 3.5 km (for 10-day simulation) and 7 40-day simulation). The numerical used nonhydrostatic icosahedral atmospheric (NICAM) explicit cloud physics. simulation realistically reproduced systems: eastward-propagating super clusters (SCCs) contained westward-propagating (CCs). SCCs (CCs) had zonal sizes several thousand (hundred) kilometers; typical propagation speed was 17 (10) m s−1. Smaller convective structures such as mesoscale systems (MCs) O(10 km) cloud-scale elements ( 16 O(100 area also reproduced. Planetary-scale equatorial waves (with wavelengths 10 000 40 major influence eastward simulated SCC; destabilization east the...
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