A drought monitoring and early warning service for food security in South Africa

IF 4 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Climate Services Pub Date : 2024-03-16 DOI:10.1016/j.cliser.2024.100463

Vasileios Pavlidis , Mahlatse Kganyago , Mxolisi Mukhawana , Thomas Alexandridis , Ines Cherif , Giovanni Laneve , Riccardo Orsi , Stergios Kartsios , Maria Chara Karypidou , Ioannis Sofiadis , Eleni Katragkou

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引用次数: 0

Abstract

In this paper we present an operational system for drought monitoring and early warning over South Africa-Lesotho. The indicators used for the alert issuance are based on meteorological, agricultural and hydrological indices, assembled by satellite and reanalysis raw data, to cover for all aspects of drought. The service is operationally updated every 10 days and has a spatial resolution of 10 Km. A severe drought period for South Africa covering the time period 2017–2020 was used to test the performance of the drought system. Our analysis indicated that the service is useful, providing sufficient warning on the onsets of and duration of droughts. Comparison of our results with a South African national drought service indicates a very good agreement in early warning messaging. The service is particularly user friendly and easily transferable to any region worldwide.

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为南非粮食安全提供干旱监测和预警服务

在本文中，我们介绍了南非-莱索托干旱监测和预警业务系统。警报发布所使用的指标基于气象、农业和水文指数，由卫星和再分析原始数据组合而成，涵盖了干旱的各个方面。该服务每 10 天更新一次，空间分辨率为 10 千米。为测试干旱系统的性能，我们使用了南非 2017-2020 年的严重干旱期。我们的分析表明，该服务非常有用，能够就干旱的发生和持续时间提供足够的预警。将我们的结果与南非国家干旱服务进行比较后发现，两者的预警信息非常一致。这项服务对用户特别友好，很容易推广到全球任何地区。

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来源期刊

Climate Services Multiple-

CiteScore

5.30

自引率

15.60%

发文量

期刊介绍： The journal Climate Services publishes research with a focus on science-based and user-specific climate information underpinning climate services, ultimately to assist society to adapt to climate change. Climate Services brings science and practice closer together. The journal addresses both researchers in the field of climate service research, and stakeholders and practitioners interested in or already applying climate services. It serves as a means of communication, dialogue and exchange between researchers and stakeholders. Climate services pioneers novel research areas that directly refer to how climate information can be applied in methodologies and tools for adaptation to climate change. It publishes best practice examples, case studies as well as theories, methods and data analysis with a clear connection to climate services. The focus of the published work is often multi-disciplinary, case-specific, tailored to specific sectors and strongly application-oriented. To offer a suitable outlet for such studies, Climate Services journal introduced a new section in the research article type. The research article contains a classical scientific part as well as a section with easily understandable practical implications for policy makers and practitioners. The journal''s focus is on the use and usability of climate information for adaptation purposes underpinning climate services.