![](/images/graphics-bg.png)
Environmental Forcing of Red Tides in the Southern Benguela
Author
Source
International Journal of Oceanography
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-16
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Earth Science , Water and Environment
History and Geography
Science
Abstract EN
The Southern Benguela cape upwelling plumes have inshore wind shadows prone to red tides in late summer.
Their intensity and coverage are estimated by satellite fluorescence measurements in the period 1997–2012 and qualified by in situ reports.
High satellite fluorescence cases are identified at daily to seasonal time scales, and characteristics of the upper ocean and lower atmosphere are studied using third generation reanalyses.
A dominant feature is easterly winds over the Cape Peninsula (34°S, 18°E) induced by a ridging anticyclone-coastal low weather pattern.
Over Cape Columbine (33°S), there is a wind shadow with cyclonic wind and current shear.
Composite atmospheric profiles reveal a 4°C temperature inversion near 500 m that traps a coastal wind jet >6 m/s below 200 m.
The composite shelf oceanography shows a relic upwelling plume below 10 m overtopped by warmer water near the coast, providing the thermal stratification needed for biotic aggregation.
Data from the IPSL5 coupled climate model over the period 1980–2080 indicates that environmental conditions favoring red tides may become more frequent.
American Psychological Association (APA)
Jury, Mark R.. 2014. Environmental Forcing of Red Tides in the Southern Benguela. International Journal of Oceanography،Vol. 2014, no. 2014, pp.1-16.
https://search.emarefa.net/detail/BIM-463631
Modern Language Association (MLA)
Jury, Mark R.. Environmental Forcing of Red Tides in the Southern Benguela. International Journal of Oceanography No. 2014 (2014), pp.1-16.
https://search.emarefa.net/detail/BIM-463631
American Medical Association (AMA)
Jury, Mark R.. Environmental Forcing of Red Tides in the Southern Benguela. International Journal of Oceanography. 2014. Vol. 2014, no. 2014, pp.1-16.
https://search.emarefa.net/detail/BIM-463631
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-463631