Working Document Series Open Access Seasonal rainfall variability, drought characterisation and efficacy of interpolation techniques: Case of Kenya’s central highlands M. Oscar Kisaka · F.S. Mairura · M. Mucheru-Muna · D.N. Mugendi +2 more Drier parts Eastern Kenya, endure persistent crop failure and declining agricultural productivity which have been attributed, in part, to high temperatures, prolonged dry-spells and particularly erratic rainfall. Understanding spatial-temp… RUF-34241 2014 CC BY 4.0 17 Aug 2015