Storm types in Bangladesh: duration, intensity and area of intra‐daily wet events

We explore the characteristics of 96,190 wet events (WEs) defined as consecutive 3‐hourly rainfall ≥ 1 mm/3 hr from a network of 34 stations across Bangladesh. Nearly 60% (5%) of WEs last ≤ 3 (≥ 15) hr. The WEs are dynamically clustered into four “canonical” storm types (STs), mostly discretized by...

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Veröffentlicht in:International journal of climatology 2023-02, Vol.43 (2), p.850-873
Hauptverfasser: Moron, Vincent, Acharya, Nachiketa, Hassan, S. M. Quamrul
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Sprache:eng
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Zusammenfassung:We explore the characteristics of 96,190 wet events (WEs) defined as consecutive 3‐hourly rainfall ≥ 1 mm/3 hr from a network of 34 stations across Bangladesh. Nearly 60% (5%) of WEs last ≤ 3 (≥ 15) hr. The WEs are dynamically clustered into four “canonical” storm types (STs), mostly discretized by their duration, but also their mean and maximal intensity. While durations, total amounts and wet contiguous areas of WEs are positively related, their mean intensity is nearly independent of them. Approximately 60% of WEs are associated with ST#1, characterized by short and small WEs and very low rainfall amounts (usually
ISSN:0899-8418
1097-0088
DOI:10.1002/joc.7835