Authors :
YAPI Assa Fabrice; OGA Yeï Marie Solange; KPAN Oulaï Jean Gautier; N’GUESSAN BI Vami Hermann; ALLECHY Fabrice Blanchard; et BIEMI Jean
Volume/Issue :
Volume 5 - 2020, Issue 11 - November
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/2Kdim1y
Abstract :
- The objective in this work is to carry out a
spatio-temporal study of extreme rainfall events from
daily observations from the Center for Climate Prediction
System Reanalysis (CFSR) by the method of climatic
indices on the chronicle from 1980 to 2013 using the
CLimPACT 2 master program which was used to
calculate the climatic indices used in this work namely the
annual total rainfall (PRCPTOT), daily rainfall intensity
(SDII), annual total rainfall on very wet days (R95p),
percentage of annual total rainfall on very wet days
(R95pTOT), annual total rainfall on extremely wet days
(R99p) and percentage of annual total rainfall on
extremely wet days R99pTOT. The values of these climate
indices obtained were spatialized and grouped into three
10-year periods for each climate index. Over the entire
study period, the cumulative annual rainfall amounts
vary from 1094.14 mm to 2012.98 mm with an average
water depth ranging from 5.96 mm/d to 8.93 mm/d.
Cumulative intense rainfall varies from 226.87 mm to
692.40 mm with a frequency of intense rainfall between
14.30% and 33.65%. The cumulative extreme rainfall
amounts are between 67.34 mm and 295.50 mm with a
frequency of extreme rainfall that varies between 4.82%
and 15.09%. A gradual decline was observed in all the
rainfall indicators used, reflecting the occurrence of
droughts in the Marahoué region.
Keywords :
Climate Indices, Extreme Rainfall, Marahoué, Côte d'Ivoire
- The objective in this work is to carry out a
spatio-temporal study of extreme rainfall events from
daily observations from the Center for Climate Prediction
System Reanalysis (CFSR) by the method of climatic
indices on the chronicle from 1980 to 2013 using the
CLimPACT 2 master program which was used to
calculate the climatic indices used in this work namely the
annual total rainfall (PRCPTOT), daily rainfall intensity
(SDII), annual total rainfall on very wet days (R95p),
percentage of annual total rainfall on very wet days
(R95pTOT), annual total rainfall on extremely wet days
(R99p) and percentage of annual total rainfall on
extremely wet days R99pTOT. The values of these climate
indices obtained were spatialized and grouped into three
10-year periods for each climate index. Over the entire
study period, the cumulative annual rainfall amounts
vary from 1094.14 mm to 2012.98 mm with an average
water depth ranging from 5.96 mm/d to 8.93 mm/d.
Cumulative intense rainfall varies from 226.87 mm to
692.40 mm with a frequency of intense rainfall between
14.30% and 33.65%. The cumulative extreme rainfall
amounts are between 67.34 mm and 295.50 mm with a
frequency of extreme rainfall that varies between 4.82%
and 15.09%. A gradual decline was observed in all the
rainfall indicators used, reflecting the occurrence of
droughts in the Marahoué region.
Keywords :
Climate Indices, Extreme Rainfall, Marahoué, Côte d'Ivoire
