Projected changes in extreme rainfall and temperature events and possible implications for Cameroon's socio?economic sectors

نویسندگان

چکیده

Extreme events like flooding, droughts and heatwave are among the factors causing huge socio-economic losses to Cameroonians. Investigating potential response of rainfall temperature extremes global warming is therefore critically needed for tailoring adjusting country's policies. Recent datasets have been developed this purpose within Coordinated Output Regional Evaluations (CORDEX-CORE) initiative, at ~25 km grid spacing. These regional climate models were used dynamically downscaled four participating in Coupled Model Intercomparison Project phase 5 (CMIP5), under optimistic pessimistic representative concentration pathways (RCPs) 2.6 8.5, respectively. employed study characterizing Cameroon's extreme precipitation warming, using seven indices defined by Expert Team on Climate Change Detection Indices. Under maximum number consecutive dry (wet) days' expected increase (decrease). However, annual total amount increase, mainly due intensification very wet days daily intensity. Furthermore, temperature-based reveal an (decrease) hot (cold) days, overall, changes intensify with increased radiative forcing. The high-mitigated low-emission pathway RCP2.6 features attenuated changes, even sometimes adapts reverse sign changes. Designing reliable policies limit risks associated above required, as their consequences likely include food insecurity, heat-related illness, population impoverishment, price rises market instability.

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ژورنال

عنوان ژورنال: Meteorological Applications

سال: 2023

ISSN: ['1350-4827', '1469-8080']

DOI: https://doi.org/10.1002/met.2119