The impact of atmospheric rivers on rainfall in New Zealand

Abstract This study quantifies the impact of atmospheric rivers (ARs) on rainfall in New Zealand. Using an automated AR detection algorithm, daily rainfall records from 654 rain gauges, and various atmospheric reanalysis datasets, we investigate the climatology of ARs, the characteristics of landfal...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jingxiang Shu, Asaad Y. Shamseldin, Evan Weller
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b9fa37ad11d146e89146d2e7e5fd05c4
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b9fa37ad11d146e89146d2e7e5fd05c4
record_format	dspace
spelling	oai:doaj.org-article:b9fa37ad11d146e89146d2e7e5fd05c42021-12-02T13:15:56ZThe impact of atmospheric rivers on rainfall in New Zealand10.1038/s41598-021-85297-02045-2322https://doaj.org/article/b9fa37ad11d146e89146d2e7e5fd05c42021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85297-0https://doaj.org/toc/2045-2322Abstract This study quantifies the impact of atmospheric rivers (ARs) on rainfall in New Zealand. Using an automated AR detection algorithm, daily rainfall records from 654 rain gauges, and various atmospheric reanalysis datasets, we investigate the climatology of ARs, the characteristics of landfalling ARs, the contribution of ARs to annual and seasonal rainfall totals, and extreme rainfall events between 1979 and 2018 across the country. Results indicate that these filamentary synoptic features play an essential role in regional water resources and are responsible for many extreme rainfall events on the western side of mountainous areas and northern New Zealand. In these regions, depending on the season, 40–86% of the rainfall totals and 50–98% of extreme rainfall events are shown to be associated with ARs, with the largest contributions predominantly occurring during the austral summer. Furthermore, the median daily rainfall associated with ARs is 2–3 times than that associated with other storms. The results of this study extend the knowledge on the critical roles of ARs on hydrology and highlight the need for further investigation on the landfalling AR physical processes in relation to global circulation features and AR sources, and hydrological hazards caused by ARs in New Zealand.Jingxiang ShuAsaad Y. ShamseldinEvan WellerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jingxiang Shu Asaad Y. Shamseldin Evan Weller The impact of atmospheric rivers on rainfall in New Zealand
description	Abstract This study quantifies the impact of atmospheric rivers (ARs) on rainfall in New Zealand. Using an automated AR detection algorithm, daily rainfall records from 654 rain gauges, and various atmospheric reanalysis datasets, we investigate the climatology of ARs, the characteristics of landfalling ARs, the contribution of ARs to annual and seasonal rainfall totals, and extreme rainfall events between 1979 and 2018 across the country. Results indicate that these filamentary synoptic features play an essential role in regional water resources and are responsible for many extreme rainfall events on the western side of mountainous areas and northern New Zealand. In these regions, depending on the season, 40–86% of the rainfall totals and 50–98% of extreme rainfall events are shown to be associated with ARs, with the largest contributions predominantly occurring during the austral summer. Furthermore, the median daily rainfall associated with ARs is 2–3 times than that associated with other storms. The results of this study extend the knowledge on the critical roles of ARs on hydrology and highlight the need for further investigation on the landfalling AR physical processes in relation to global circulation features and AR sources, and hydrological hazards caused by ARs in New Zealand.
format	article
author	Jingxiang Shu Asaad Y. Shamseldin Evan Weller
author_facet	Jingxiang Shu Asaad Y. Shamseldin Evan Weller
author_sort	Jingxiang Shu
title	The impact of atmospheric rivers on rainfall in New Zealand
title_short	The impact of atmospheric rivers on rainfall in New Zealand
title_full	The impact of atmospheric rivers on rainfall in New Zealand
title_fullStr	The impact of atmospheric rivers on rainfall in New Zealand
title_full_unstemmed	The impact of atmospheric rivers on rainfall in New Zealand
title_sort	impact of atmospheric rivers on rainfall in new zealand
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b9fa37ad11d146e89146d2e7e5fd05c4
work_keys_str_mv	AT jingxiangshu theimpactofatmosphericriversonrainfallinnewzealand AT asaadyshamseldin theimpactofatmosphericriversonrainfallinnewzealand AT evanweller theimpactofatmosphericriversonrainfallinnewzealand AT jingxiangshu impactofatmosphericriversonrainfallinnewzealand AT asaadyshamseldin impactofatmosphericriversonrainfallinnewzealand AT evanweller impactofatmosphericriversonrainfallinnewzealand
_version_	1718393352878030848

The impact of atmospheric rivers on rainfall in New Zealand

Ejemplares similares