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Mineral dust sources in the surroundings of the north Indian Ocean
Author(s) -
Léon JeanFrançois,
Legrand Michel
Publication year - 2003
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2002gl016690
Subject(s) - mineral dust , aeolian processes , arid , dust storm , peninsula , geology , satellite , indian ocean , environmental science , asian dust , atmospheric dust , oceanography , climatology , storm , meteorology , aerosol , geography , geomorphology , paleontology , archaeology , aerospace engineering , engineering
We have used one year (1999) of Meteosat observations to monitor the dust activity in the arid and semi‐arid areas surrounding the North Indian Ocean. The method is based on the IDDI product derived from the infrared channel of the satellite. Dust sources are located according to a threshold on the IDDI and another on the surface wind speed. The global features of the dust activity in this area are in a good agreement with previous studies. Main dust sources are located in the Nubian desert, the Arabian peninsula, Iran, Pakistan and Afghanistan, and North West India. It is found that Somalia is also an area of dust emission with a maximum of activity from May to October.