Analysis of climate variability, trends, and prediction in the most active parts of the Lake Chad basin, Africa

Mahmood, Rashid; Jia, Shaofeng; Zhu, Wenxiang

doi:10.1038/s41598-019-42811-9

Cited by 114 publications

(82 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies examined stream flow of Chari-Logone river and rainfall for the last 70 years as main indicators of the Lake Chad fluctuation 31,32 . They suggested that the lake is shrinking due to the decreasing trend observed in both parameters.…”

Section: Lake Chad In Context Of the Climate Changementioning

confidence: 99%

The Lake Chad hydrology under current climate change

Pham-Duc

Sylvestre

Papa

et al. 2020

Sci Rep

102

View full text Add to dashboard Cite

Lake Chad, in the Sahelian zone of west-central Africa, provides food and water to ~50 million people and supports unique ecosystems and biodiversity. In the past decades, it became a symbol of current climate change, held up by its dramatic shrinkage in the 1980s. Despites a partial recovery in response to increased Sahelian precipitation in the 1990s, Lake Chad is still facing major threats and its contemporary variability under climate change remains highly uncertain. Here, using a new multi-satellite approach, we show that Lake Chad extent has remained stable during the last two decades, despite a slight decrease of its northern pool. Moreover, since the 2000s, groundwater, which contributes to ~70% of Lake Chad’s annual water storage change, is increasing due to water supply provided by its two main tributaries. Our results indicate that in tandem with groundwater and tropical origin of water supply, over the last two decades, Lake Chad is not shrinking and recovers seasonally its surface water extent and volume. This study provides a robust regional understanding of current hydrology and changes in the Lake Chad region, giving a basis for developing future climate adaptation strategies.

show abstract

Section: Lake Chad In Context Of the Climate Changementioning

confidence: 99%

The Lake Chad hydrology under current climate change

Pham-Duc

Sylvestre

Papa

et al. 2020

Sci Rep

102

View full text Add to dashboard Cite

show abstract

“…Our temperature data came from the global gridded dataset (Climate Research Unit (CRU) Time-Series Atmosphere 2020, 11,190 4 of 18 (TS) v4.03) provided by the Climate Research Unit (CRU) at the University of East Anglia, United Kingdom [24]. Given the low spatial and temporal coverage of meteorological stations in Africa, the CRU dataset provides alternative data for climate analysis and has been used in previous studies focused on Nigeria, Africa, and global climate models [25][26][27][28]. In this study, we analyze the trend of rainfall and temperature during the 1961 to 2018 period.…”

Section: Linear Variations In Climate Variables In Nigeria's Agro-ecomentioning

confidence: 99%

Progress in Climate–Agricultural Vulnerability Assessment in Nigeria

et al. 2020

View full text Add to dashboard Cite

An in-depth understanding of the impact of vulnerability on livelihoods and food security is important in deploying effective adaptation actions. The Nigerian agricultural sector is dominated by rainfed and non-homogenous smallholder farming systems. A number of climate change risk studies have emerged in the last decade. However, little attention has been given to vulnerability assessments and the operationalization of vulnerability. To highlight this shortcoming, this study systematically reviewed climate-change-focused vulnerability assessments in the agricultural sector by evaluating (1) variation in climate variables in Nigeria over time;(2) the state of climate change vulnerability assessment in Nigerian agriculture; (3) the theoretical foundations, operationalization approaches, and frameworks of vulnerability assessments in Nigeria; (4) the methods currently used in vulnerability assessments; and (5) lessons learned from the vulnerability studies. We used a linear trend of climatic data spanning over a period of 56 years obtained from the Nigerian Meteorological Agency and the Climate Research Unit of the University of East Anglia, United Kingdom, along with a systematic review of literature to achieve the objectives. The analysis indicates a significant and positive correlation between temperature and time in all major agro-ecological zones. For precipitation, we found a non-significant correlation between precipitation in the Sahel, Sudan, and Guinea Savanna zones with time, while the other zones recorded positive but significant associations between precipitation and time. The systematic review findings indicate no clear progress in publications focused specifically on vulnerability assessments in the Nigerian agricultural sector. There has been progress recently in applying frameworks and methods. However, there are important issues that require addressing in vulnerability assessments, including low consideration for indigenous knowledge and experience, unclear operationalization of vulnerability, non-standardization of vulnerability measures, and inadequacy of current assessments supporting decision making.

show abstract

“…There is evidence that Spectral analysis of observed and Climate Research Unit (CRU) data, can be used for the prediction of climate variations, e.g. temperature was predicted to increase by 0.65-1.6 °C and precipitation was predicted to decrease by 13-11% in the next two decades (i.e., 2016-2025 and 2026-2035) relative to 1961-1990, in the Lake Chad basin (LCB) [58,59,60,61].…”

Section: Rate Of Climate Variationmentioning

confidence: 99%

Climate Change: Vulnerability of the Niger Delta Region, in Nigeria

Ighedosa

2019

IJECC

View full text Add to dashboard Cite

Climate change is not just a global threat, but an unprecedented public health emergency. Climate change has been characterized by global warming, increased frequency and intensity of precipitation, catastrophic wind events, and extreme weather events, associated with heat waves, flooding disasters, and prolonged droughts. The United Nations Framework Convention on Climate Change (UNFCCC) attributes climate change to anthropogenic or human activities. Globally, the most vulnerable regions, to hazardous impacts of climate change, are the mega-deltas of Africa and Asia, due to high exposure to sea level rise, storm surges, coastal erosion, and river flooding, compounded by increasing human-induced pressures on coastal areas. The vulnerability of the Niger Delta region, is exacerbated by oil spillages, gas flaring. and environmental degradation. This review article highlights, the urgent implementation of mitigation and adaptation as opportunities for full transformation of economies, of the Niger delta region, in line with sustainable developmental goals (SDGs).

show abstract

Analysis of climate variability, trends, and prediction in the most active parts of the Lake Chad basin, Africa

Cited by 114 publications

References 70 publications

The Lake Chad hydrology under current climate change

The Lake Chad hydrology under current climate change

Progress in Climate–Agricultural Vulnerability Assessment in Nigeria

Climate Change: Vulnerability of the Niger Delta Region, in Nigeria

Contact Info

Product

Resources

About