The recently completed CINDY/DYNAMO field campaign observed two Madden-Julian oscillation (MJO) events in the equatorial Indian Ocean from October to December 2011. Prior work has indicated that the moist static energy anomalies in these events grew and were sustained to a significant extent by radiative feedbacks. We present here a study of radiative fluxes and clouds in a set of cloud-resolving simulations of these MJO events. The simulations are driven by the large scale forcing dataset derived from the DYNAMO northern sounding array observations, and carried out in a doubly-periodic domain using the Weather Research and Forecasting (WRF) model. simulated cloud properties and radiative fluxes are compared to those derived from the S-Polka radar and satellite observations. To accommodate the uncertainty in simulated cloud microphysics, a number of single moment (1M) and double moment (2M) microphysical schemes in the WRF model are tested.
Revised: March 18, 2016 |
Published: October 19, 2015
Citation
Wang S., A.H. Sobel, A.M. Fridlind, Z. Feng, J.M. Comstock, P. Minnis, and M.L. Nordeen. 2015.Simulations of cloud-radiation interaction using large-scale forcing derived from the CINDY/DYNAMO northern sounding array.Journal of Advances in Modeling Earth Systems 7, no. 3:1472-1498.PNNL-SA-109635.doi:10.1002/2015MS000461