Radiation Aerosols Module

This module contains climatological atmospheric aerosol schemes for radiation computations.

Version

NCEP-Radiation_aerosols v5.2 Jan 2013

This module has three externally callable subroutines:

• aer_init() – initialization; called at the start of run to set up module parameters
• aer_update() – updating aerosol data; called within the time loop to check and update data sets
• setaer() – mapping aeros profile, compute aeros opticals

References:

• OPAC climatological aerosols: Hou et al. 2002 [69]; Hess et al. 1998 [61]
• GOCART interactive aerosols: Chin et al., 2000 [23] Colarco et al., 2010 - jgr, v115, D14207[26]
• MERRA2 aerosol reanalysis: Randles et al., 2017 - jclim, v30, 6823-6850[114] Buchard et al., 2017 - jclim, v30, 6851-6871[15]
• Stratospheric volcanical aerosols: Sato et al. 1993 [118]

The initialization program is to set up necessary parameters and working arrays.

Parameters

NLAY	number of model vertical layers (not used)
me	print message control flag

General Algorithm