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Multi-model subseasonal forecasts of spring cold spells: potential value for the hazelnut agribusiness
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2019
Source: Weather and Forecasting, 35(1), 237-254. https://journals.ametsoc.org/view/journals/wefo/35/1/waf-d-19-0086.1.xml
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Journal Title:Weather and Forecasting
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NOAA Program & Office:
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Description:Producing probabilistic subseasonal forecasts of extreme events up to six weeks in advance is crucial for many economic sectors. In agribusiness, this time scale is particularly critical because it allows for mitigation strategies to be adopted for counteracting weather hazards and taking advantage of opportunities. For example, spring frosts are detrimental for many nut trees, resulting in dramatic losses at harvest time. To explore subseasonal forecast quality in boreal spring, identified as one of the most sensitive times of the year by agribusiness end users, we build a multisystem ensemble using four models involved in the Subseasonal to Seasonal Prediction project (S2S). Two-meter temperature forecasts are used to analyze cold spell predictions in the coastal Black Sea region, an area that is a global leader in the production of hazelnuts. When analyzed at the global scale, the multisystem ensemble probabilistic forecasts for near-surface temperature are better than climatological values for several regions, especially the tropics, even many weeks in advance; however, in the coastal Black Sea, skill is low after the second forecast week. When cold spells are predicted instead of near-surface temperatures, skill improves for the region, and the forecasts prove to contain potentially useful information to stakeholders willing to put mitigation plans into effect. Using a cost–loss model approach for the first time in this context, we show that there is added value of having such a forecast system instead of a business-as-usual strategy, not only for predictions released 1–2 weeks ahead of the extreme event, but also at longer lead times.
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Source:Weather and Forecasting, 35(1), 237-254. https://journals.ametsoc.org/view/journals/wefo/35/1/waf-d-19-0086.1.xml
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Rights Information:CC BY
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Compliance:Submitted
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Main Document Checksum:urn:sha256:98b777ba8b9d4147ae4d8807cf753df0b90a4ba592340ee3202788c32bd2ae7f
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