Further development of a parameterization for convective turbulent dust emission and evaluation based on field observations
2014-09-16 null null 119(卷), null(期), (null页)
JCR分区:
影响因子:
Further developments of a parameterization scheme for convective turbulent dust emission (CTDE) are presented. The scheme is advanced by including (1) a new statistical description of instantaneous momentum flux, (2) a correction function for cohesive force to account for the effect of soil moisture, and (3) a correction function for lifting force to consider the effect of vegetation roughness elements. The probability density function describing instantaneous momentum flux is now derived from large-eddy simulations for different atmospheric stabilities. The vegetation correction function is based on a drag partition theory. Additional improvements on the representations of interparticle cohesive force and particle size distribution are introduced. The new CTDE scheme is tested against the field data obtained at a sand storm monitoring station in the Horqin Sandy Land in China in 2011 and during the Japan-Australia Dust Experiment in Australia in 2006.
关键词
相关推荐
- Improved machine learning estimation of surface turbulent flux using interpretable model selection and adaptive ensemble algorithms over the Horqin Sandy Land area [2014-09-16]
- Insights into the single-particle composition, size, mixing state, and aspect ratio of freshly emitted mineral dust from field measurements in the Moroccan Sahara using electron microscopy [2014-09-16]
- A regional hydrological model for arid and semi-arid river basins with consideration of irrigation [2014-09-16]
- Effects of plastic film mulching on soil nematodes and soil quality at different growth stages of maize planted in semiarid areas of China [2014-09-16]
- Estimating the sand saltation thresholds from Sentinel-1 SAR data in the Gobi Desert, Mongolia [2014-09-16]
