dc.contributor.author |
Nel, Werner
|
|
dc.contributor.author |
Hauptfleisch, Alexia
|
|
dc.contributor.author |
Sumner, P.D. (Paul)
|
|
dc.contributor.author |
Boojhawon, Ravindra
|
|
dc.contributor.author |
Rughooputh, Soonil D.D.V.
|
|
dc.contributor.author |
Dhurmea, Kumar R.
|
|
dc.date.accessioned |
2016-09-20T05:51:06Z |
|
dc.date.issued |
2016-05 |
|
dc.description.abstract |
Mauritius is a typical tropical volcanic island with a raised interior where extreme
rainfall events generate the bulk of the erosivity. Intra-event characteristics of the 120 highest
erosive events at six selected locations between 2004 and 2008 were analysed to provide the
first detailed intra-storm data for a tropical island environment. On Mauritius, spatial variation
is evident in the characteristics of the extreme erosive rainfall recorded at the stations, with a
noticeable increase in rainfall depth, duration, kinetic energy and erosivity of extreme events
with altitude. Extreme events in the raised interior (central plateau) show a high variability in
peak intensity over time as well as a higher percentage of events with the greatest intensities
in the latter part of the event. Intra-event distribution of rainfall in the interior of the island shows
that rainfall has a higher potential to exceed infiltration rates as well as the ability to generate
high peak runoff rates and substantial soil loss. The study suggests that even though the
within-event rainfall characteristics is complex it has implications for soil erosion risk, and that
in tropical island environments the within-storm distribution of rainfall must be incorporated
in soil loss modelling. |
en_ZA |
dc.description.department |
Geography, Geoinformatics and Meteorology |
en_ZA |
dc.description.embargo |
2017-05-31 |
|
dc.description.librarian |
hb2016 |
en_ZA |
dc.description.sponsorship |
National Research Foundation (NRF) |
en_ZA |
dc.description.uri |
http://www.tandfonline.com/loi/tphy20 |
en_ZA |
dc.identifier.citation |
Werner Nel, Alexia Hauptfleisch, Paul D. Sumner, Ravindra Boojhawon, Soonil D. D. V. Rughooputh & Kumar R. Dhurmea (2016) Intra-event characteristics of extreme erosive rainfall on Mauritius, Physical Geography, 37:3-4, 264-275, DOI:10.1080/02723646.2016.1189756. |
en_ZA |
dc.identifier.issn |
0272-3646 (print) |
|
dc.identifier.issn |
1930-0557 (online) |
|
dc.identifier.other |
10.1080/02723646.2016.1189756 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/56754 |
|
dc.language.iso |
en |
en_ZA |
dc.publisher |
Taylor and Francis |
en_ZA |
dc.rights |
© Taylor and Francis. This is an electronic version of an article published in Physical Geography, vol. 37, no. 3-4, pp. 264-275, 2016. doi : 10.1080/02723646.2016.1189756. Physical Geography is available online at : http://www.tandfonline.comloi/tphy20. |
en_ZA |
dc.subject |
Erosivity |
en_ZA |
dc.subject |
Rainfall intensity |
en_ZA |
dc.subject |
Rainfall kinetic energy |
en_ZA |
dc.subject |
Mauritius |
en_ZA |
dc.title |
Intra-event characteristics of extreme erosive rainfall on Mauritius |
en_ZA |
dc.type |
Postprint Article |
en_ZA |