2021
DOI: 10.5194/dach2022-186
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Einfluss atmosphärischer Umgebungsbedingungen auf den Lebenszyklus konvektiver Zellen im Nowcasting

Abstract: <p>Trotz signifikanter Verbesserungen in den vergangenen Jahren sind die Unsicherheiten insbesondere bei der Vorhersage von Gewittern und ihren Begleiterscheinungen wie Starkregen, Hagel oder Sturmböen selbst mit konvektionsauflösenden Wettervorhersagemodellen der Wetterdienste noch immer zu groß, um daraus verlässliche und möglichst punktgenaue Warnungen abzuleiten. Für kurzfristige Präventionsma&#… Show more

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“…Fourth, only uni‐ and bivariate relations between the predictors (ambient variables and some cell attributes at the initial stage) and life‐cycle properties T$$ T $$ and Amax$$ {A}_{\mathrm{max}} $$ were presented. Similar investigations of combined dependencies with even more than two ambient variables, however, hardly reveal combinations with a sufficiently large sample size for establishing robust statistical relations and, at the same time, remarkably stronger signals with regard to the mean lifetime or mean maximum area (Wilhelm, 2022). Fifth, the ambient conditions are characterised by high‐resolution model analysis data, which are a very good approximation but do not completely reflect the actual reality.…”
Section: Discussionmentioning
confidence: 99%
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“…Fourth, only uni‐ and bivariate relations between the predictors (ambient variables and some cell attributes at the initial stage) and life‐cycle properties T$$ T $$ and Amax$$ {A}_{\mathrm{max}} $$ were presented. Similar investigations of combined dependencies with even more than two ambient variables, however, hardly reveal combinations with a sufficiently large sample size for establishing robust statistical relations and, at the same time, remarkably stronger signals with regard to the mean lifetime or mean maximum area (Wilhelm, 2022). Fifth, the ambient conditions are characterised by high‐resolution model analysis data, which are a very good approximation but do not completely reflect the actual reality.…”
Section: Discussionmentioning
confidence: 99%
“…The values of the other scores in the respective diagrams relate to that same optimised threshold. The score values depend on the lifetime separator τ$$ \tau $$ as alluded to earlier herein (Wilhelm, 2022). For example, PSS values generally increase for increasing values of τ$$ \tau $$, mainly due to an increase in POD.…”
Section: Statistical Relevance Of Ambient Conditions For Cell Evolutionmentioning
confidence: 91%
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