{"title":"A comprehensive study of atmospheric dynamics associated with cloudburst events in 2022 over Indian Himalayan Region","authors":"Payoshni Samantray, Krushna Chandra Gouda","doi":"10.1007/s12040-024-02370-8","DOIUrl":null,"url":null,"abstract":"<p>This comprehensive study aims to investigate the cloudburst events that occurred in the Indian Himalayan Region (IHR) during the year 2022, focusing on their characteristics, structure and dynamics. Cloudburst events have been observed in different states of the Himalayan region, with their unique geographical features, and are susceptible to extreme weather phenomena, which pose significant challenges to the local communities and infrastructure. A majority of cloudburst events occur within the folds of valleys of the Indian Himalayas, where elevations range from 325 to 4073 m. As the year 2022 witnessed frequent cloudburst events in the IHR (Himachal Pradesh recorded around 24 cloudburst events, Uttarakhand recorded 18 and Jammu and Kashmir recorded 24 events), an attempt is being made for the comprehensive analysis of the role of atmospheric dynamics to result in such extreme events in the valley region. The analysis clearly advocates that certain atmospheric phenomena, such as frontal boundaries like temperature, humidity, convective available potential energy, convective inhibition, or atmospheric disturbances, can act as triggers for cloud burst events. The spatial distribution of different thermodynamic parameters during the previous day, event day and the day after the cloudburst events are also analysed to quantify the role of atmospheric dynamics in the temporal distribution. This study has highlighted the importance of low-level jets and moisture transport in forming the convective systems that lead to cloudbursts over the Himalayan region due to wind patterns.</p>","PeriodicalId":15609,"journal":{"name":"Journal of Earth System Science","volume":"110 1","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Earth System Science","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1007/s12040-024-02370-8","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This comprehensive study aims to investigate the cloudburst events that occurred in the Indian Himalayan Region (IHR) during the year 2022, focusing on their characteristics, structure and dynamics. Cloudburst events have been observed in different states of the Himalayan region, with their unique geographical features, and are susceptible to extreme weather phenomena, which pose significant challenges to the local communities and infrastructure. A majority of cloudburst events occur within the folds of valleys of the Indian Himalayas, where elevations range from 325 to 4073 m. As the year 2022 witnessed frequent cloudburst events in the IHR (Himachal Pradesh recorded around 24 cloudburst events, Uttarakhand recorded 18 and Jammu and Kashmir recorded 24 events), an attempt is being made for the comprehensive analysis of the role of atmospheric dynamics to result in such extreme events in the valley region. The analysis clearly advocates that certain atmospheric phenomena, such as frontal boundaries like temperature, humidity, convective available potential energy, convective inhibition, or atmospheric disturbances, can act as triggers for cloud burst events. The spatial distribution of different thermodynamic parameters during the previous day, event day and the day after the cloudburst events are also analysed to quantify the role of atmospheric dynamics in the temporal distribution. This study has highlighted the importance of low-level jets and moisture transport in forming the convective systems that lead to cloudbursts over the Himalayan region due to wind patterns.
期刊介绍：
The Journal of Earth System Science, an International Journal, was earlier a part of the Proceedings of the Indian Academy of Sciences – Section A begun in 1934, and later split in 1978 into theme journals. This journal was published as Proceedings – Earth and Planetary Sciences since 1978, and in 2005 was renamed ‘Journal of Earth System Science’.
The journal is highly inter-disciplinary and publishes scholarly research – new data, ideas, and conceptual advances – in Earth System Science. The focus is on the evolution of the Earth as a system: manuscripts describing changes of anthropogenic origin in a limited region are not considered unless they go beyond describing the changes to include an analysis of earth-system processes. The journal''s scope includes the solid earth (geosphere), the atmosphere, the hydrosphere (including cryosphere), and the biosphere; it also addresses related aspects of planetary and space sciences. Contributions pertaining to the Indian sub- continent and the surrounding Indian-Ocean region are particularly welcome. Given that a large number of manuscripts report either observations or model results for a limited domain, manuscripts intended for publication in JESS are expected to fulfill at least one of the following three criteria.
The data should be of relevance and should be of statistically significant size and from a region from where such data are sparse. If the data are from a well-sampled region, the data size should be considerable and advance our knowledge of the region.
A model study is carried out to explain observations reported either in the same manuscript or in the literature.
The analysis, whether of data or with models, is novel and the inferences advance the current knowledge.
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