|
Abstract
|
Article Information:
The Impact of Climate Change on Precipitation Effectiveness Indices in Northern Nigeria
B.A. Sawa and A.A. Adebayo
Corresponding Author: B.A. Sawa
Submitted: 2011 February, 10
Accepted: 2011 March, 15
Published: 2011 August, 10 |
Abstract:
|
The impact of climate change on six precipitation effectiveness indices in northern Nigeria was
examined using rainfall data of three decades (1976-2005). The six derived indices are: onset, cessation and
length of rainy season, hydrologic ratio, seasonality index and occurrence of pentad dry spells. The derived
indices were subjected to time series analysis. Results of the analysis showed that the rains now start late but
end early as a result length of rainy season is decreasing. Northern Nigeria is becoming drier as the rainy season
is now spread within fewer months. Frequency of dry spells of 5 days is decreasing, however, dry spells of 10,
15 or more days are on the increase. This is diminutive to agriculture and water resources as well as the
biodiversity of the region. It is a threat to food security and sustainable development. There is therefore, the
urgent need for the Nigerian government to come up with a concrete action plan to face this reality of climate
change.
Key words: Climate change, dry spells, hydrologic ratio, seasonality index, , ,
|
|
Abstract
|
PDF
|
HTML |
|
Cite this Reference:
B.A. Sawa and A.A. Adebayo, . The Impact of Climate Change on Precipitation Effectiveness Indices in Northern Nigeria. Research Journal of Environmental and Earth Sciences, (5): 481-485.
|
|
|
|
 |
ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
 |
| Information |
|
|
|
|
| Sales & Services |
|
|
|
|
