dc.contributor.author | Gatebe, C K | |
dc.contributor.author | Tyson, P D | |
dc.contributor.author | Annegarn, H | |
dc.contributor.author | Piketh, S | |
dc.contributor.author | Helas, G | |
dc.date.accessioned | 2014-07-10T13:45:57Z | |
dc.date.available | 2014-07-10T13:45:57Z | |
dc.date.issued | 1999-06 | |
dc.identifier.citation | Gatebe, C. K., Tyson, P. D., Annegarn, H., Piketh, S., & Helas, G. (1999). A seasonal air transport climatology for Kenya. Journal of Geophysical Research: Atmospheres (1984–2012), 104(D12), 14237-14244. | en_US |
dc.identifier.uri | http://hdl.handle.net/11295/72541 | |
dc.description.abstract | A climatology of air transport to and from Kenya has been developed using
kinematic trajectory modeling. Significant months for trajectory analysis have been
determined from a classification of synoptic circulation fields. Five-point back and forward
trajectory clusters to and from Kenya reveal that the transport corridors to Kenya are
clearly bounded and well defined. Air reaching the country originates mainly from the
Saharan region and northwestern Indian Ocean of the Arabian Sea in the Northern
Hemisphere and from the Madagascan region of the Indian Ocean in the Southern
Hemisphere. Transport from each of these source regions show distinctive annual cycles
related to the northeasterly Asian monsoon and the southeasterly trade wind maximum
over Kenya in May. The Saharan transport in the lower troposphere is at a maximum
when the subtropical high over northern Africa is strongly developed in the boreal winter.
Air reaching Kenya between 700 and 500 hPa is mainly from Sahara and northwest Indian
Ocean in the months of January and March, which gives way to southwest Indian Ocean
flow in May and November. In contrast, air reaching Kenya at 400 hPa is mainly from
southwest Indian Ocean in January and March, which is replaced by Saharan transport in
May and November. Transport of air from Kenya is invariant, both spatially and
temporally, in the tropical easterlies to the Congo Basin and Atlantic Ocean in
comparison to the transport to the country. Recirculation of air has also been observed
but on a limited and often local scale and not to the extent reported in southern Africa. | en_US |
dc.description.uri | http://onlinelibrary.wiley.com/doi/10.1029/1998JD200103/pdf | |
dc.language.iso | en | en_US |
dc.publisher | University of Nairobi | en_US |
dc.title | A seasonal air transport climatology for Kenya | en_US |
dc.type | Article | en_US |
dc.type.material | en_US | en_US |