Models - Atmospheric Model
more...BCC_AGCM 2.2
BCC_AGCM2.2 is the latest version which is released as the atmospheric component of BCC_CSM1.1-m. The motivation was to provide better resolved regional climate simulations when used in CMIP5 experiments. New features in BCC_AGCM2.2 are (1) A high horizontal resolution T106 is added which is about 1 X 1 deg grid, (2) And some tunings have been done in the physics package at T106 resolution. (3) The outputs at the stations are also added in the history package. (4) The initial process is added......
more...BCC_AGCM 2.1
A new cumulus convective scheme (Wu, 2011) has been implemented in the BCC_AGCM2.1. The scheme is based on a bulk-cloud approach and has the following properties: (1) Deep convection is launched at the level of maximum moist static energy above the top of the boundary layer. It is triggered if there is positive convective available potential energy (CAPE) and relative humidity of the air at the lifting level of convection cloud is greater than 75%; (2) Convective updrafts for mass, dry static......
more...BCC_AGCM 2.0
BCC_AGCM2.0 originates from the community atmospheric model version 3 (CAM3) developed by the National Center for Atmospheric Research(NCAR). The dynamics in BCC_AGCM2.0 is substantially different from the Eulerian spectral formulation of the dynamical equations in CAM3. The dynamical core of BCC_AGCM2.0 is reference atmosphere described in Wu et al.(2008), which demonstrated that the use of a reference atmosphere can substantially improve the calculation of pressure gradient force and thus model......
more...BCC_AGCM 1.0
During the 9th Five-Year National Development Plan period, in collaboration with the Institute of Atmospheric Physics, Chinese Academy of Science and other institutions, NCC developed a middle resolution global atmospheric model,BCC_AGCM1.0. The original version of the model was the medium-range NWP model at NMC, which could be traced back to ECMWF Cray-based model (1998). Horizontally, it selects 63 waves through triangle truncation (approximately 1.875 x 1.875 degrees). It has 16 layers (25hPa at......