Sample NMS Reference Report by YONTCHANG G - University of ...

sea-air interaction over much of the tropical Atlantic sector.(Lamb,1983). Douala Cameroon
(about 4ºN) is well usually marked by a zone with deep active and convective clouds,
thunderstorms and squall lines (SW winds) and heavy precipitations. The African Waves are
often associated with Squall lines that form, develop and dissipate within the waves.
Figure 1: Location of Douala, Cameroon in Africa
B. OBJECTIVES:
The main objective of the study is to investigate the sowing period variability and flooding
risks in the city of Douala. These will be achieved by addressing the following specific
objectives:
i. Assessment of the annual distribution of sowing dates;
ii.
iii.
iv.
Assessment of the flooding risks during the rainfall peak period;
To quantify the risk of having floods with crop failure for each week in the month of
August, where 100mm of rain or more in a day has caused flooding and crop
destruction. Again we compute the number of years in the time series when at exactly
one day in the week in question has registered 100mm or more of rain. If the event
was observed at least once, then we define that a week experiences a crop failure.
Week 1 is from day number 212 to day number 218; Week 2 is from day number 219
to day number 225; Week 3 is from day number 226 to day number 232; Week 4 is
from day number 233 to day number 239.
Towards development of a possible „cautious strategy‟.
4