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Strengthening national hydrometeorological services through cascading forecasting : investing for sustainability and impact across global, regional, and national centers

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  • Kull,Daniel Werner
  • Graessle,Corinne
  • Aryan,Barzin

Abstract

Low-income countries'hydrometeorological services often face considerable constraints in delivering the information needed to effectively drive early warning and climate adaptation, which, if improved, could generate socioeconomic benefits of about US$1.4 billion per year. Modern weather forecasting adopts a cascading approach where numerical products developed by global producing centers feed regional and national models, with national forecasters assimilating these and other data to produce information customized for local users. The system depends on global producing centers sharing their products, often through voluntary action without dedicated financing, which is not sustainable and does not fully leverage the capacity of global producing centers to provide tailored information. It would be economically viable for global producing centers to provide their full suite of services to low-income countries, producing likely global socioeconomic benefits of US$200 million to US$500 million per year, outweighing the costs by about 80 to one. Existing global producing centers'capacities and their potential benefits for low-income countries fulfill the utilitarian principal. Global numerical weather prediction should therefore be treated as a global public good. However, although recent global development and climate agreements clearly suggest that improving forecasting in low-income countries should be a target of international cooperation, official development assistance financing of high-income country global producing centers to provide products to low-income countries would be considered tied aid. Specialized mechanisms, such as the Green Climate Fund, could provide legitimate means to finance global producing centers to provide global public services in support of low-income countries. However, to realize the potential benefits, significant investment is needed in regional and national forecasting, early warning, and preparedness capacities.

Suggested Citation

  • Kull,Daniel Werner & Graessle,Corinne & Aryan,Barzin, 2016. "Strengthening national hydrometeorological services through cascading forecasting : investing for sustainability and impact across global, regional, and national centers," Policy Research Working Paper Series 7609, The World Bank.
  • Handle: RePEc:wbk:wbrwps:7609
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    Keywords

    Adaptation to Climate Change; Disaster Management; Social Risk Management; Hazard Risk Management;

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