4 Works

GCRF African Swift Nowcasting Standard Operating Procedure (SOP)

Alexander Roberts, Douglas Parker, John Marsham, Jennifer Fletcher, Morné Gijben Gijben, Abdoulahat Diop, Joseph Portuphy, Ben Lamptey, Samuel Owusu Ansah, Elijah Adefisan, Temidayo Israel Popoola , David Koros David & Cheikh Dione
This document outlines the suggested procedures for the operational production of nowcast warnings by African National Meteorological and Hydrological Services (NMHSs) developed by the Global Challenges Research Fund (GCRF) African SWIFT (Science for Weather Information and Forecasting Techniques) project. Information from geostationary satellites is routinely received by African NMHSs in near-real-time and this operating procedure outlines how this can be used to produce valuable nowcast warnings within the day-to-day operations of African NMHSs.

Data from: Essential oil optimizes the susceptibility of Callosobruchus maculatus and enhances the nutritional qualities of stored cowpea Vigna unguiculata

Mazarin Akami, Chakira Hamada, Awawing A. Andongma, Khaeso Kanjana, Olajire A. Gbaye, Nicolas Y. Njingtang, Elias N. Nukenine, Chang-Ying Niu & Hamada Chakira
The intensive use of synthetic pesticides in cowpea storage has led to the development of resistance by Callosobruchus maculatus and subsequent degradation of the grains quality. In an attempt to circumvent these constraints, we investigated the susceptibility of C. maculatus to 2, 3-Dichlorovinyl dimethyl phosphate (DDVP) and Lippia adoensis essential oil (EO) and then assessed the variations in the proportions of nutritional values of treated grains 150 days after storage. The survival rate was recorded...

The future of African nowcasting

Lorraine Youds, Douglas Parker, Elijah A Adefisan, Leonard Kofitse Amekudzi, Jeffrey N. A. Aryee, Ifeoluwa Adebowale BALOGUN, Alan Blyth, Bernard Chanzu, Sylvester Danuor, Abdoulahat Diop, Jennifer Fletcher, Andre K Foamouhoue, Amadou T Gaye, Morne Gijben, Steven Goodman, Peter Hill, Ishiyaku Ibrahim, David Koros, Kamoru Abiodun Lawal, John Marsham, Bethwel Mutai K, Joseph Mutemi, Coumba Niang, Ousmane Ndiaye & Eniola Olaniyan
Nowcasting (weather forecasting predictions from zero to several hours) has enormous value and potential in Africa, where populations and economic activity are highly vulnerable to rapidly changing weather conditions. Timely issuing of warnings, a few hours before an event, can enable the public and decision-makers to take action. Rainfall radar estimates are not widely available in Africa, nor likely to be in the coming years, and numerical weather prediction (NWP) currently has low skill over...

Functional miscibility and thermomechanical properties enhancement of substituted phthalic acetylated modified chitin filler in biopolymer composite

Niyi Olaiya, O.S. Obaseki, Gaber A.M. Mersal, Mohamed M. Ibrahim, Mahmoud M. Hessien, Funmilayo Olaiya, Asif Afzal, Taslima Khanam & Ahmad Rashedi
The miscibility between hydrophobic and hydrophilic biopolymers has been of significant challenge. This study used a novel simplified chitin modification method to produce phthalic - chitin using phthalic anhydride in a substitution reaction. The FT-IR functional group analysis was used to confirm the substitution reaction. The modified chitin was used as compatibiliser in PLA/starch biocomposite to enhance its properties. The biocomposite was prepared using melt extrusion and compression moulding technique. The biocomposite's morphological, thermomechanical, and...

Registration Year

  • 2022
    2
  • 2021
    1
  • 2017
    1

Resource Types

  • Dataset
    2
  • Text
    2

Affiliations

  • Federal University of Technology
    4
  • University of Leeds
    2
  • African Center of Meteorological Application for Development
    2
  • Agence Nationale de l'Aviation Civile et de la Météorologie
    2
  • South African Weather Service
    2
  • Nigerian Meteorological Agency
    1
  • Kwame Nkrumah University of Science and Technology
    1
  • Visvesvaraya Technological University
    1
  • Taif University
    1
  • Huazhong Agricultural University
    1