Tropical cyclone simulations over Bangladesh at convection permitting 4.4 km & 1.5 km resolution

High resolution simulations at 4.4 km and 1.5 km resolution have been performed for 12 historical tropical cyclones impacting Bangladesh. We use the European Centre for Medium-Range Weather Forecasting 5(th) generation Re-Analysis (ERA5) to provide a 9-member ensemble of initial and boundary conditi...

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Autores principales: Steptoe, Hamish, Savage, Nicholas Henry, Sadri, Saeed, Salmon, Kate, Maalick, Zubair, Webster, Stuart
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Data Descriptor
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7886856/
https://www.ncbi.nlm.nih.gov/pubmed/33594085
http://dx.doi.org/10.1038/s41597-021-00847-5
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author Steptoe, Hamish
Savage, Nicholas Henry
Sadri, Saeed
Salmon, Kate
Maalick, Zubair
Webster, Stuart
author_facet Steptoe, Hamish
Savage, Nicholas Henry
Sadri, Saeed
Salmon, Kate
Maalick, Zubair
Webster, Stuart
author_sort Steptoe, Hamish
collection PubMed
description High resolution simulations at 4.4 km and 1.5 km resolution have been performed for 12 historical tropical cyclones impacting Bangladesh. We use the European Centre for Medium-Range Weather Forecasting 5(th) generation Re-Analysis (ERA5) to provide a 9-member ensemble of initial and boundary conditions for the regional configuration of the Met Office Unified Model. The simulations are compared to the original ERA5 data and the International Best Track Archive for Climate Stewardship (IBTrACS) tropical cyclone database for wind speed, gust speed and mean sea-level pressure. The 4.4 km simulations show a typical increase in peak gust speed of 41 to 118 knots relative to ERA5, and a deepening of minimum mean sea-level pressure of up to −27 hPa, relative to ERA5 and IBTrACS data. The downscaled simulations compare more favourably with IBTrACS data than the ERA5 data suggesting tropical cyclone hazards in the ERA5 deterministic output may be underestimated. The dataset is freely available from 10.5281/zenodo.3600201.
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spelling pubmed-78868562021-03-03 Tropical cyclone simulations over Bangladesh at convection permitting 4.4 km & 1.5 km resolution Steptoe, Hamish Savage, Nicholas Henry Sadri, Saeed Salmon, Kate Maalick, Zubair Webster, Stuart Sci Data Data Descriptor High resolution simulations at 4.4 km and 1.5 km resolution have been performed for 12 historical tropical cyclones impacting Bangladesh. We use the European Centre for Medium-Range Weather Forecasting 5(th) generation Re-Analysis (ERA5) to provide a 9-member ensemble of initial and boundary conditions for the regional configuration of the Met Office Unified Model. The simulations are compared to the original ERA5 data and the International Best Track Archive for Climate Stewardship (IBTrACS) tropical cyclone database for wind speed, gust speed and mean sea-level pressure. The 4.4 km simulations show a typical increase in peak gust speed of 41 to 118 knots relative to ERA5, and a deepening of minimum mean sea-level pressure of up to −27 hPa, relative to ERA5 and IBTrACS data. The downscaled simulations compare more favourably with IBTrACS data than the ERA5 data suggesting tropical cyclone hazards in the ERA5 deterministic output may be underestimated. The dataset is freely available from 10.5281/zenodo.3600201. Nature Publishing Group UK 2021-02-16 /pmc/articles/PMC7886856/ /pubmed/33594085 http://dx.doi.org/10.1038/s41597-021-00847-5 Text en © Crown 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver http://creativecommons.org/publicdomain/zero/1.0/ applies to the metadata files associated with this article.
spellingShingle Data Descriptor
Steptoe, Hamish
Savage, Nicholas Henry
Sadri, Saeed
Salmon, Kate
Maalick, Zubair
Webster, Stuart
Tropical cyclone simulations over Bangladesh at convection permitting 4.4 km & 1.5 km resolution
title Tropical cyclone simulations over Bangladesh at convection permitting 4.4 km & 1.5 km resolution
title_full Tropical cyclone simulations over Bangladesh at convection permitting 4.4 km & 1.5 km resolution
title_fullStr Tropical cyclone simulations over Bangladesh at convection permitting 4.4 km & 1.5 km resolution
title_full_unstemmed Tropical cyclone simulations over Bangladesh at convection permitting 4.4 km & 1.5 km resolution
title_short Tropical cyclone simulations over Bangladesh at convection permitting 4.4 km & 1.5 km resolution
title_sort tropical cyclone simulations over bangladesh at convection permitting 4.4 km & 1.5 km resolution
topic Data Descriptor
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7886856/
https://www.ncbi.nlm.nih.gov/pubmed/33594085
http://dx.doi.org/10.1038/s41597-021-00847-5
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