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Storylines for decision-making: climate and food security in Namibia
Climate and Development ( IF 4.653 ) Pub Date : 2020-11-04 , DOI: 10.1080/17565529.2020.1808438
Hannah R. Young 1, 2 , Theodore G. Shepherd 1 , James Acidri 3 , Rosalind J. Cornforth 2 , Celia Petty 2, 3 , John Seaman 3 , Lindsay C. Todman 4
Affiliation  

ABSTRACT

Storylines are plausible descriptions of past or future events and can be used to characterize uncertainty through discrete possible futures. They thereby bridge the gap between global-scale future projections and local-scale impacts, providing decision-makers with useful information about potential impacts in multivariate systems despite large swathes of missing data. Here we demonstrate the storyline approach using the case of household food security in the Caprivi region of Namibia, an example of a complex system with multiple interacting drivers. We develop a network characterizing influences on household food security, highlighting drivers that are affected by the local weather (with climate understood to constitute the collection of possible weather states). The network is used to understand the storyline leading to household impacts in 2013–14, a consumption year affected by flooding, and the effects of a range of interventions across wealth groups. Counterfactual storylines are also developed to characterize potential impacts under different local and national conditions. Through this we demonstrate how a storyline approach can embed local contextual information to provide decision-makers with comprehensible and assessable information about possible futures and interventions. We highlight the importance of identifying common drivers, in this case the local weather, in producing plausible impact storylines.



中文翻译:

决策故事情节:纳米比亚的气候和粮食安全

摘要

故事情节是对过去或未来事件的合理描述,可用于通过离散的可能未来来表征不确定性。因此,它们弥合了全球范围的未来预测与本地范围的影响之间的鸿沟,为决策者提供了有关大量系统中潜在影响的有用信息,尽管有大量丢失的数据。在这里,我们使用纳米比亚卡普里维地区的家庭粮食安全案例演示故事情节方法,这是一个具有多个交互驱动因素的复杂系统的示例。我们开发了一个网络,描述了对家庭粮食安全的影响,突出了受当地天气影响的驱动因素(气候被理解为构成可能的天气状态的集合)。该网络用于了解导致 2013-14 年家庭影响的故事情节,这是一个受洪水影响的消费年,以及一系列跨财富群体干预措施的影响。还建立了反事实的故事情节,以刻画在不同的地方和国家条件下的潜在影响。通过这一点,我们展示了故事情节方法如何嵌入当地背景信息,为决策者提供关于可能的未来和干预措施的可理解和可评估的信息。我们强调了确定共同驱动因素的重要性,在这种情况下是当地天气,以产生合理的影响故事情节。还开发了反事实故事情节来描述不同地方和国家条件下的潜在影响。通过这种方式,我们演示了故事情节方法如何嵌入本地上下文信息,从而为决策者提供有关可能的未来和干预措施的可理解和可评估的信息。我们强调了确定共同驱动因素的重要性,在这种情况下是当地天气,以产生合理的影响故事情节。还开发了反事实故事情节来描述不同地方和国家条件下的潜在影响。通过这一点,我们展示了故事情节方法如何嵌入当地背景信息,为决策者提供关于可能的未来和干预措施的可理解和可评估的信息。我们强调了确定共同驱动因素的重要性,在这种情况下是当地天气,以产生合理的影响故事情节。

更新日期:2020-11-04
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