The impact of Indian Ocean dipole on tropical Indian Ocean surface wave heights in ERA5 and CMIP5 models
Abstract The present study examines the relationship between the tropical Indian Ocean (TIO) significant wave height (SWH) and Indian Ocean dipole (IOD) during boreal summer season (June through August) in the latest version of European Centre for Medium‐Range Weather Forecasts reanalysis (ERA5) and...
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crwiley:10.1002/joc.6900 2024-04-07T07:55:51+00:00 The impact of Indian Ocean dipole on tropical Indian Ocean surface wave heights in ERA5 and CMIP5 models Srinivas, Gangiredla Remya, P. G. Kumar, B. Praveen Modi, Anuradha Nair, T. M. Balakrishnan 2020 http://dx.doi.org/10.1002/joc.6900 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6900 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.6900 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6900 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 41, issue 3, page 1619-1632 ISSN 0899-8418 1097-0088 Atmospheric Science journal-article 2020 crwiley https://doi.org/10.1002/joc.6900 2024-03-08T03:51:27Z Abstract The present study examines the relationship between the tropical Indian Ocean (TIO) significant wave height (SWH) and Indian Ocean dipole (IOD) during boreal summer season (June through August) in the latest version of European Centre for Medium‐Range Weather Forecasts reanalysis (ERA5) and wave simulations forced with surface winds and sea‐ice fields from the Coupled Model Intercomparison Project version‐5 (CMIP5) models. The interannual variability of SWH shows a significant negative correlation with the IOD over TIO. SWH anomalies display meridional tripole pattern with significant negative (positive) anomalies over eastern equatorial Indian Ocean caused by anomalous easterlies (westerlies), and positive (negative) anomalies over southeastern TIO and the north Bay of Bengal during positive (negative) phase of IOD. The strong wave heights along the east coast of India during positive IOD and the south and southwest coast of India during negative IOD are noticed. CMIP5 models GFDL‐CM3, MRI‐CGCM3 and the multi‐model mean display considerable skill in capturing these teleconnections with substantial magnitude differences. A thorough understanding of the teleconnections between IOD and TIO wave heights is a significant prerequisite for the accurate forecast of surface waves in the Indian Ocean. Hence, this study advocates the importance evaluating the ability of models in representing the SWH and IOD interactions and its implications on Indian coastal regions in the form of inundation, coastal flooding and other vulnerabilities in a changing climate scenario. Article in Journal/Newspaper Sea ice Wiley Online Library Indian North Bay ENVELOPE(-37.690,-37.690,-54.040,-54.040) International Journal of Climatology 41 3 1619 1632 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Atmospheric Science |
spellingShingle |
Atmospheric Science Srinivas, Gangiredla Remya, P. G. Kumar, B. Praveen Modi, Anuradha Nair, T. M. Balakrishnan The impact of Indian Ocean dipole on tropical Indian Ocean surface wave heights in ERA5 and CMIP5 models |
topic_facet |
Atmospheric Science |
description |
Abstract The present study examines the relationship between the tropical Indian Ocean (TIO) significant wave height (SWH) and Indian Ocean dipole (IOD) during boreal summer season (June through August) in the latest version of European Centre for Medium‐Range Weather Forecasts reanalysis (ERA5) and wave simulations forced with surface winds and sea‐ice fields from the Coupled Model Intercomparison Project version‐5 (CMIP5) models. The interannual variability of SWH shows a significant negative correlation with the IOD over TIO. SWH anomalies display meridional tripole pattern with significant negative (positive) anomalies over eastern equatorial Indian Ocean caused by anomalous easterlies (westerlies), and positive (negative) anomalies over southeastern TIO and the north Bay of Bengal during positive (negative) phase of IOD. The strong wave heights along the east coast of India during positive IOD and the south and southwest coast of India during negative IOD are noticed. CMIP5 models GFDL‐CM3, MRI‐CGCM3 and the multi‐model mean display considerable skill in capturing these teleconnections with substantial magnitude differences. A thorough understanding of the teleconnections between IOD and TIO wave heights is a significant prerequisite for the accurate forecast of surface waves in the Indian Ocean. Hence, this study advocates the importance evaluating the ability of models in representing the SWH and IOD interactions and its implications on Indian coastal regions in the form of inundation, coastal flooding and other vulnerabilities in a changing climate scenario. |
format |
Article in Journal/Newspaper |
author |
Srinivas, Gangiredla Remya, P. G. Kumar, B. Praveen Modi, Anuradha Nair, T. M. Balakrishnan |
author_facet |
Srinivas, Gangiredla Remya, P. G. Kumar, B. Praveen Modi, Anuradha Nair, T. M. Balakrishnan |
author_sort |
Srinivas, Gangiredla |
title |
The impact of Indian Ocean dipole on tropical Indian Ocean surface wave heights in ERA5 and CMIP5 models |
title_short |
The impact of Indian Ocean dipole on tropical Indian Ocean surface wave heights in ERA5 and CMIP5 models |
title_full |
The impact of Indian Ocean dipole on tropical Indian Ocean surface wave heights in ERA5 and CMIP5 models |
title_fullStr |
The impact of Indian Ocean dipole on tropical Indian Ocean surface wave heights in ERA5 and CMIP5 models |
title_full_unstemmed |
The impact of Indian Ocean dipole on tropical Indian Ocean surface wave heights in ERA5 and CMIP5 models |
title_sort |
impact of indian ocean dipole on tropical indian ocean surface wave heights in era5 and cmip5 models |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/joc.6900 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6900 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.6900 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6900 |
long_lat |
ENVELOPE(-37.690,-37.690,-54.040,-54.040) |
geographic |
Indian North Bay |
geographic_facet |
Indian North Bay |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
International Journal of Climatology volume 41, issue 3, page 1619-1632 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.6900 |
container_title |
International Journal of Climatology |
container_volume |
41 |
container_issue |
3 |
container_start_page |
1619 |
op_container_end_page |
1632 |
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1795673379006578688 |