Abstract
This paper presented a new height-resolved view of global dust transport based on 2007-2010 Atrain observations. First, a new dust identification methodology was developed to improve optically thin dust layer detection. Second a new dust partition methodology was developed and applied to CALIPSO lidar measurements to derive dust partitions in external mixed aerosols. These new approaches allow a new view of global dust distribution from dense dust layers near the strong source regions to the optically thin, but significant dust layers from the point of view of aerosol– cloud interactions, over the weak source regions, the transport areas, and the upper troposphere. The results will not only help us to better understand global dust transport and dust-cloud interactions, but also provide critical information for model evaluations and improvements.
Highlights
Dust aerosols are well known for the role in modulating the climate system at local and global scales [1]
Current models still have large uncertainties in simulating dust optical depth, vertical extinction profiles and seasonal variations [3], which stresses the need of better dust observations to improve dust related processes in the models, especially in the free troposphere where the dust loading is lower [4, 5]
This paper aims to provide a new and complete global height-resolved view of dust distribution by improving thin dust identification based on CloudAerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) measurements
Summary
Dust aerosols are well known for the role in modulating the climate system at local and global scales [1]. Reliable height-resolved dust identification and mass estimation approaches are needed to provide more accurate dust loading estimations, and to improve our understanding of the mixing of the climate-relevant aerosol components, the long range transport of the dust, and the impact of aerosols on regional climate [5,6,7]. This paper aims to provide a new and complete global height-resolved view of dust distribution by improving thin dust identification based on CloudAerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) measurements.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
