Periodic Assessment of Trend and Climatic Variability in the LCB

  • Rakiya Babamaaji Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Halilu A. Shaba National Space Research and Development Agency, Abuja, 900001, Nigeria
  • Matthew Adepoju Strategic Space Applications Department, National Space Research and Development Agency, Abuja, 900001, Nigeria
  • Yusuf Momoh Jimoh Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Chiemeka Nsofor Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Grace Mbaiorga Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Hawa Abdulai Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Adedayo Oje Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Stephen Modie Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Helen Awe-Peter Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Tebe Eteng Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Samaila Maiwada Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Joke Lawal Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Anne Ege Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Simon Ajih Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
  • Abubakar Omoti Natural Resources Management, Strategic Space Application Department, National Space Research and Development Agency, Abuja, 900001,Nigeria
Keywords: Rainfall, Precipitation, Mann Kendal, Trend, Sen’s Slope, Evapotranspiration, Runoff

Abstract

Periodic assessment of trend and climatic variability is important for better planning and water resource management in the LCB catchment. This study assessed the impact of climatic variables on the LCB (LCB) using rainfall data derived from TAMSAT, run off and evapotranspiration data derived from climate engine over a period of twenty years (2001-2020). Non-parametric Mann Kendall (MK) and Spearman rho tests were applied to detect the presence of rainfall trends and trend magnitude was calculated using Sen’s Slope Estimator (SSE). With an average annual rainfall of 523.62mm, trend analysis showed an annual positive trend for precipitation at 5% significance level. Analysis of seasonal rainfall using both tests revealed an increasing trend during the dry season. However, the late dry season experienced a slight increasing trend and for wet seasons. There was 2.7% runoff and 4.6% evapotranspiration which are the lowest for the time series.

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Published
2022-06-11
How to Cite
Rakiya Babamaaji, Halilu A. Shaba, Matthew Adepoju, Yusuf Momoh Jimoh, Chiemeka Nsofor, Grace Mbaiorga, Hawa Abdulai, Adedayo Oje, Stephen Modie, Helen Awe-Peter, Tebe Eteng, Samaila Maiwada, Joke Lawal, Anne Ege, Simon Ajih, & Abubakar Omoti. (2022). Periodic Assessment of Trend and Climatic Variability in the LCB. International Journal of Sciences: Basic and Applied Research (IJSBAR), 62(2), 424-434. Retrieved from https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/14026
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Articles