On Composition, Morphology, and Size Distribution of Airborne Mineral Dust - Mineral Dust: A Key Player in the Earth System - page 29

Tabl e 2. 1 Median aspect ratios and shape factors for African and Asian dust particles

Median
aspect ratio a

Length-to-height
ratio

Median
shape factor b

Number of
analyzed particles Location Size range, m Reference

Airborne, over Niger 0.1-0.75 1.7 1.53 31,000 Chou et al. ( 2008 )

0.75-2 1.61

2-10 1.76

3.6/5.5 2

Mountain station, Tenerife 0.7-10 1.64 22,000 Kandler et al. ( 2007 )

Ground-based, Morocco 0.7-200 1.58 45,000 Kandler et al. ( 2009 )

High-altitude airborne,
over Morocco

0.5-3 1.74 7,000 Kandler et al. ( 2009 )

Low-altitude airborne,
over Morocco

1-30 1.57 1.23 22,000 Scheuvens et al. ( 2011 )

Ground-based, dust
component only, Cape
Ve r d e

0.5-20 1.63 16,000 Kandler et al. ( 2011a )

Airborne, dust over Cape
Ve r d e

0.4-20 1.69 1.40 48,000 Lieke et al. ( 2011 )

Ground-based, dust
episodes in Spain

2.4-4 1.87 30,000 Coz et al. ( 2009 )

4-10 1.81

Airborne, African dust
over Puerto Rico

0.3-0.75 1.9 1.25 60,000 Reid et al. ( 2003 )

0.75-5 1.35

5-10 1.58

Ground-based, Asian
dust, Japan

>1.59 c 1,600 Osada ( 2013 )