89 research outputs found

    Regional Climate Services for Agriculture Project Presentation, and Demonstration and Discussion of Agricultural Maprooms: Launch Events at 44th Greater Horn of Africa Climate Outlook Forum

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    A joint collaborative initiative between ICPAC, CCAFS and IRI was launched publically through a series of presentations and side sessions at the 44th Greater Horn of Africa Climate Outlook Forum (GHACOF44) in Kampala, Uganda, on 30 August 2016. This initiative is part of the Climate Services for Africa Project, a three-year project funded by the United States Agency for International Development (USAID). The project is being implemented at ICPAC and is intended to roll out climate services in support of Agriculture and Food Security to ICPAC member states (all IGAD and EAC countries) with technical support from CCAFS and IRI. The overall goal of this initiative is to strengthen the capacity of ICPAC and that of ICPAC member countries to develop effective climate products and services for agriculture and food security, for the benefit of smallholder farmers

    Improving resilience to climate impacts in West Africa through improved availability, access and use of climate information: dialog with users

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    The stakeholder workshop on ā€œImproving Resilience to Climate Impacts in West Africa Through Improved Availability, Access and Use of Climate Information: Dialogue With Usersā€ was convened by the Centre Regional de Formation et d'Application en AgromĆ©tĆ©orologie et Hydrologie OpĆ©rationnelle (AGRHYMET) in collaboration with the International Research Institute for Climate and Society (IRI) with funding and technical support from the United States Agency for International Development (USAID), the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) and the United Nations Development Program (UNDP). Stakeholders from six Permanent Inter-state Committee for Drought Control in the Sahel (CILSS) countries were invited, in addition to representatives of five river basin organizations and the African Center of Meteorological Application for Development (ACMAD). The three-day meeting in Niamey, Niger (January 21-23, 2014) was attended by 40 participants and facilitators. It consisted of five components: ā€¢ Introduction to AGRHYMETā€™s latest climate data, tools, and information products; ā€¢ Training on the use of the tools for data analysis and visualization; ā€¢ Engagement on the concept of climate risk management in the different sectors; ā€¢ Soliciting feedback and needs from participants, to assess the value of the available tools and products to users, and inform improvements that are most relevant to stakeholders; and ā€¢ Exploration of an Advisory Group for improving Climate Services provided by the AGRHYMET Center. The workshop introduced and solicited feedback on data, products and decision-support tools launched to support improved resilience to climate impacts, across sectors, initially targeting the agriculture, water and disaster risk management communities

    Web-based climate information resources for malaria control in Africa

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    Malaria remains a major public health threat to more than 600 million Africans and its control is recognized as critical to achieving the Millennium Development Goals. The greatest burden of malaria in Africa occurs in the endemic regions where the disease pathogen is continuously present in the community. These regions are characterized by an environment that is conducive to interactions between the Anopheles mosquito, malaria parasites and human hosts, as well as housing of generally poor quality, which offers little protection from mosquito-human contact. Epidemic malaria tends to occur along the geographical margins of endemic regions, when the equilibrium between the human, parasite and mosquito vector populations is occasionally disturbed and a sharp but temporary increase in disease incidence results. When malaria control measures are inadequate, as is the case in much of sub-Saharan Africa, the disease distribution is closely linked with seasonal patterns of the climate and local environment. In the absence of good epidemiological data on malaria distribution in Africa, climate information has long been used to develop malaria risk maps that illustrate the boundaries of 'climatic suitability for endemic transmission.' The best known of these are produced by the Pan-African-based MARA Collaboration. This paper describes the development of additional malaria suitability maps which have been produced in an online, interactive format to enable temporal information (i.e., seasonality of climate conditions) to be queried and displayed along with spatial information. These maps and the seasonal information that they contain should be useful to the malaria control and health service communities for their planning and operational activities

    Application of non-linear techniques for daily weather data reconstruction and downscaling coarse climate data for local predictions

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    Downscaling techniques aim at resolving the scale discrepancy between climate change scenarios and the resolution demanded for impact assessments. Requirements for downscaled climate, to be useful for end users, include reliable representation of precipitation intensities, temporal and spatial variability, and physical parameters consistency. This report summarizes the results of the proof of concept phase in the development and testing of a novel data reconstruction method and a downscaling algorithm based on the multiplicative random cascade disaggregation method using rainfall signals at different spatial and temporal resolutions. The Wavelet Transformed-based Multi-Resolution Analysis (WT-MRA) was used for reconstructing the historical daily rainfall data needed as input for the downscaling methodology, using satellite-derived proxy data. Comparisons with presently used software showed that in all the cases; that is, the reconstructed, generated daily or downscaled daily data, the products developed outperformed the control test by either generating more accurate outcomes or by demanding significantly less parameterizing data

    Antimicrobial resistance surveillance in Ethiopia: Implementation experiences and lessons learned

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    Introduction:Ā Antimicrobial resistance (AMR) poses a global threat. High levels of AMR to commonly used antibiotics have been reported in East Africa. A situation analysis of AMR in Ethiopia also indicated high resistance levels. To prevent and contain AMR, Ethiopia established a national surveillance network. Objectives:Ā This article describes the steps taken to prioritise AMR and establish the National Antimicrobial Resistance Surveillance System in Ethiopia, as well as present the challenges and lessons learned through implementation. Methods:Ā In April 2017, Ethiopia had developed and approved the National AMR Surveillance Plan for laboratory-based AMR surveillance. The World Health Organization recommendations and Ethiopiasā€™s current microbiology capacity were used to prioritise organisms for reporting. The surveillance system is comprised of a network linking the national reference laboratory with surveillance sentinel sites. Roll-out of the AMR surveillance network occurred in three phases in order to ensure successful implementation. Results:Ā Electronic capture and transmission of data, supply chain for the microbiology laboratory and communication problems were challenges observed after implementation started. Support from Ethiopian Public Health Institute focal persons for data entry, regular scheduled communication establishment and procurement of supplies by the American Society for Microbiology were some of the measures taken to address the challenges. Conclusion:Ā Ethiopia has demonstrated that setting up AMR surveillance in lower resource settings is possible with strong leadership and stakeholder engagement

    A westward extension of the warm pool leads to a westward extension of the Walker circulation, drying eastern Africa

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    Observations and simulations link anthropogenic greenhouse and aerosol emissions with rapidly increasing Indian Ocean sea surface temperatures (SSTs). Over the past 60 years, the Indian Ocean warmed two to three times faster than the central tropical Pacific, extending the tropical warm pool to the west by ~40Ā° longitude (><4,000 km). This propensity toward rapid warming in the Indian Ocean has been the dominant mode of interannual variability among SSTs throughout the tropical Indian and Pacific Oceans (55Ā°Eā€“140Ā°W) since at least 1948, explaining more variance than anomalies associated with the El NiƱo-Southern Oscillation (ENSO). In the atmosphere, the primary mode of variability has been a corresponding trend toward greatly increased convection and precipitation over the tropical Indian Ocean. The temperature and rainfall increases in this region have produced a westward extension of the western, ascending branch of the atmospheric Walker circulation. Diabatic heating due to increased mid-tropospheric water vapor condensation elicits a westward atmospheric response that sends an easterly flow of dry air aloft toward eastern Africa. In recent decades (1980ā€“2009), this response has suppressed convection over tropical eastern Africa, decreasing precipitation during the ā€˜long-rainsā€™ season of Marchā€“June. This trend toward drought contrasts with projections of increased rainfall in eastern Africa and more ā€˜El NiƱo-likeā€™ conditions globally by the Intergovernmental Panel on Climate Change. Increased Indian Ocean SSTs appear likely to continue to strongly modulate the Warm Pool circulation, reducing precipitation in eastern Africa, regardless of whether the projected trend in ENSO is realized. These results have important food security implications, informing agricultural development, environmental conservation, and water resource planning
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