sharp@mail_iap_ac_cn
New Member
Dear everyone,I want to calculate the radiative forcings of dust aerosols in present day in both short-wave and long-wave using Parallel Offline Radiative Transfer (PORT) model. Then, I calculated the radiative forcings of dust aerosols at the top of atmosphere by the differences of FSNT and FLNT between simulations with and without dust aerosols. By using the simulated dust concentrations from HadGEM2 as input dataset, the global annual mean FSNT and FLNT values are -0.32 W/m2 and +0.0048 W/M2, respectively. My questions are as follows: (1) The global annual mean FLNT I got seems too small that are almost negligible. Therefore, does this mean PORT do not consider the absorbing of dust aerosols in long-wave at all? (2) I have checked the physical properties of dust aerosols in inputdata(dust1/dust2/dust3/dust4_camrt_c080918.nc). In these files, the term of “abs_lw” are all “0”. Does this confirms my question (1)? And if I want to obtain the radiative forcing of dust in long-wave, what should I do?Thanks very much in advance!