@PhdThesis{diss_mods_00003355, author = {Schepanski, Kerstin}, title = {Characterising Saharan dust sources and export using remote sensing and regional modelling}, year = {2009}, publisher = {Christian-Albrechts-Universit{\"a}t zu Kiel}, address = {Kiel}, keywords = {Sahara; mineral dust; Meteosat; LLJ; LM-MUSCAT; boundary layer; Staub; Grenzschicht}, abstract = {The PhD-thesis aims to characterise the Saharan dust cycle at diffent seasons using satellite remote sensing techniques and regional modelling studies. A dust index based on 15-minute infrared satellite measurements provided by the SEVIRI instrument onboard the Meteosat Second Generation (MSG) satellite is used to infer spatio-temporal charcteristics of dust sources north of 5{\textdegree}N over Africa since March 2006. The spatial distribution of dust sources points towards the importance of endorehic drainage systems in mountain areas. The temporal distribution of the time-of-day when dust mobilisation starts shows maximum activity during local morning hours, pointing towards the role of the breakdown of the nocturnal low-level jet. Details of the role and ability of the low-level jet breakdown for dust entrainment were studied using regional modelling. Furthermore, the seasonal dust export towards the tropical North Atlantic is considered using regional modelling.}, url = {https://macau.uni-kiel.de/receive/diss_mods_00003355}, file = {:https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00002617/schepanski_diss09.pdf:PDF}, language = {en} }