Variability and Trends of Daily Heavy Rainfall Events over Niger River Basin Development Authority Area in Nigeria

Babatolu, Joseph Sunday; Akinnubi, R. T.; Folagimi, Akintade Taiwo; Bukola, Omosuyi Oluwayemisi

doi:10.4236/ajcc.2014.31001

Cited by 14 publications

(13 citation statements)

References 14 publications

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“…New noted a wetter condition in the Sahel in the 1990s which continued into the beginning of the 21 st century [12]. Also Babatolu reported an increasing trend in heavy rainfall in U&LNRBDA [14].…”

Section: Important Food Crops Produced In the Study Areamentioning

confidence: 99%

Smallholder Farmers Perception of Climate Change and Variability Impact and Their Adaptation Strategies in the Upper and Lower Niger River Basin Development Authority Areas, Nigeria

Js¹,

Rt²

2016

J Pet Environ Biotechnol

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The work attempted to analyze vulnerabilities and adaptation responses of smallholder farmers in the Upper and Lower Niger River Basin Development Authority areas (U & LNRBDA). Qualitative data was used in this study. The qualitative data was collected using questionnaire method. One thousand and two hundred questionnaires (1200) were administered out of which one thousand and one hundred and twenty-four (1124) were returned for analysis. The research findings revealed that there is high level of climate change awareness in the study area. A significant number of the smallholder farmers attested to the fact that they were aware of the changing climate-increasing temperatures, unpredictable, erratic, heavy and increasing rainfall, late onset and early retreat of rains. This is validated by the various empirical studies in the region. Smallholder farmers in the study areas really possess knowledge of the impacts of climate change and variability which helped them to cope with climate change and variability. They were able to identify their areas of vulnerability and appropriate adaptation options in their own capacity. It is recommended that the government needs to build on their capacity, knowledge and practices to enhance resilience of the smallholder farmers and for sustainability of adaptation strategies to climate change and variability.

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Section: Important Food Crops Produced In the Study Areamentioning

confidence: 99%

Smallholder Farmers Perception of Climate Change and Variability Impact and Their Adaptation Strategies in the Upper and Lower Niger River Basin Development Authority Areas, Nigeria

Js¹,

Rt²

2016

J Pet Environ Biotechnol

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“…Nevertheless, the rise in water demand which outweighs supply in the dryer areas during the dry season is premised on rapid population growth coupled with increasing urbanization as a result of economic growth which many African countries are faced with. Nigeria"s water resources are under severe siege due to deteriorating water quantity and quality (Babatolu et al, 2014). Larger outputs in rice production and other agricultural produces in the Sub-Sahara Africa (SSA) come from the Northern region of Nigeria.…”

Section: Author(s) Agree That This Article Remain Permanently Open Acmentioning

confidence: 99%

Towards attaining equity and satisfaction in water allocation mechanism for irrigated agriculture in Northern Nigeria

Balyaminu¹

2017

Afr. J. Agric. Res.

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Mechanism for water allocation in the irrigated agriculture has been subject of conflict and challenges in sub-Sahara Africa (SSA) due to higher input in rice farming and increasing water shortage. How satisfactory is the allocation mechanism by the stakeholders (the providers, policy-makers and the farmers) and how do farmers perceive equity objective on the existing water allocation mechanism in Nigeria? This paper examines constraints confronting water distribution, farmers' level of satisfaction and their perception on equity in the process of water distribution to farmlands in the Upper Niger River Basin Development Authority (UNRBDA) in Northern Nigeria. This study employs semi-structured interview and validated questionnaires survey approaches with stakeholders. Data collected were analysed using thematic approach based on themes generation and simple descriptive statistics. Findings show that weak institutions, legal framework incapacity and aging infrastructures majorly hinder equitable water allocation in the irrigated agriculture. Varied opinions were observed on the level of satisfaction among the stakeholders. While 77.7% of farmers reported that equity objective is observed, 22.2% declined that there is equity in the allocation policy. Institutional reform and adequate funding for maintenance of facilities is recommended for justice and equity in water allocation.

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“…Cheung et al (2008) found a significant decline in June to September rainfall for the Baro-Akobo, Omo-Ghibe, Rift Valley, and Southern Blue Nile watersheds located in the southwestern and central parts of Ethiopia but there is no significant negative trend in annual trend in Ethiopia. Babatolu et al (2014) studied the variability and trends of heavy rainfall over Niger River Basin. They found apparent evidence of a temporal change in heavy rainfall events in the last three decades in Niger.…”

Section: Introductionmentioning

confidence: 99%

Combinatory Mediterranean-Sudanese systems role in the occurrence of heavy rainfalls (case study: south west of Iran)

Akbary¹

2015

Meteorol Atmos Phys

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Sudanese systems are low-pressure thermal systems which originate from the Red Sea and their lowpressure isoheights are detectable around south of the Red Sea, Sudan and Ethiopia. These systems when combined with Mediterranean troughs in cold seasons, and absorbing more humidity from the Red Sea, reach the south west of Iran and result in heavy rainfalls in western, southwestern and southern parts of Iran. In all these synoptic-dynamic systems, low-pressure isobars or low isoheights are considerable. 11 severe torrents which happened in southwest of Iran (1998Iran ( -2008 are selected and using Japanese ReAnalysis data (JRA25), anomalies of dynamic and thermodynamic indices 2 days prior to the start of heavy rainfalls and during rainy days have been analyzed. The selected indices in this research are relative vorticity, convergence and divergence, vorticity advection, specific humidity and moisture advection. Pressure levels of 500 and 700 were analyzed to detect the location of troughs, vorticity and vertical wind velocity. Also level of 1000 hPa was investigated to determine the atmospheric convergence in near surface levels. It should be mentioned that to determine the advection of moisture, vertical profile of moisture advection (1000-250 hPa levels) was analyzed. According to the results of this research and analyzing 6-hourly recorded rainfall amounts, it is understood that in the reference events, before the start of the torrent, geopotential height values in the under-studied region decrease and at the time of maximum rainfalls, the geopotential height reaches to its lowest values and by the end of the torrent, the values start increasing; whereas parameters related to convergence and vertical movements, such as relative vorticity, moisture advection, convergence of moisture and specific humidity amounts correspond to the same trend of rainfall from the beginning to the end.

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Variability and Trends of Daily Heavy Rainfall Events over Niger River Basin Development Authority Area in Nigeria

Cited by 14 publications

References 14 publications

Smallholder Farmers Perception of Climate Change and Variability Impact and Their Adaptation Strategies in the Upper and Lower Niger River Basin Development Authority Areas, Nigeria

Smallholder Farmers Perception of Climate Change and Variability Impact and Their Adaptation Strategies in the Upper and Lower Niger River Basin Development Authority Areas, Nigeria

Towards attaining equity and satisfaction in water allocation mechanism for irrigated agriculture in Northern Nigeria

Combinatory Mediterranean-Sudanese systems role in the occurrence of heavy rainfalls (case study: south west of Iran)

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