Statistics – Applications
Scientific paper
Aug 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010bolme.136..301s&link_type=abstract
Boundary-Layer Meteorology, Volume 136, Issue 2, pp.301-324
Statistics
Applications
2
Marine Boundary Layer, Master Length Scale, Mellor–Yamada–Janjić Scheme, Turbulence Closure
Scientific paper
The structure of the lower part of the marine planetary boundary-layer (PBL) is relevant not only for climate and numerical weather prediction simulations but also for commercial applications such as offshore wind energy harvesting. A proper description of turbulence might have an important influence on the wind field properties such as the mean wind speed, turbulent fluxes and especially the vertical wind profile. In this study, the Mellor-Yamada-Janjić boundary-layer and surface-layer parameterizations in the Weather Research and Forecasting Model (WRF) were improved by redefining the master length scale (MLS), which controls the diffusion and dissipation of the turbulent fluxes as well as the pressure- temperature and pressure-strain covariances. In the surface layer, the modified MLS is dependent on the surface stability. In the PBL, the surface stability correction of the MLS is included, which has the strongest influence close to the surface. The non-local effects in the stable boundary layer based on surface heat forcing are also included. WRF model simulations with the original and the new PBL parameterization were compared with measurements. Improvements in the wind-shear simulations in the lower part of the boundary layer (up to around 30 m) with the new parameterization have been found, while its impact higher in the PBL is less pronounced. The simulated wind speed is however only slightly dependent on the boundary layer parameterization.
Sood Abha
Sušelj Kay
No associations
LandOfFree
Improving the Mellor-Yamada-Janjić Parameterization for wind conditions in the marine planetary boundary layer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Improving the Mellor-Yamada-Janjić Parameterization for wind conditions in the marine planetary boundary layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improving the Mellor-Yamada-Janjić Parameterization for wind conditions in the marine planetary boundary layer will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-979030