Large volcanic eruptions reduce landfalling tropical cyclone activity: Evidence from tree rings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F21%3A43903050" target="_blank" >RIV/60076658:12310/21:43903050 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/21:00548424

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0048969721009669?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0048969721009669?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2021.145899" target="_blank" >10.1016/j.scitotenv.2021.145899</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Large volcanic eruptions reduce landfalling tropical cyclone activity: Evidence from tree rings

Popis výsledku v původním jazyce

Tropical cyclones (TCs) are one of the most devastating storm systems with high socioeconomic impacts around the world. The drivers of long-term changes in TC frequency and intensity, including the recent global climatic changes, are, however, poorly understood due to short instrumental measurements and a lack of accurate proxy records. Here we present the long-term impacts of large volcanic eruptions on TC activity in northeast Asia. For this purpose, we performed a reconstruction of the frequency and intensity of landfalling TCs based on tree-ring oxygen isotope ratios over the past 350 years. Our results revealed markedly depleted delta O-18 values (P &lt; 0.01) for TC years and confirm tree-ring delta O-18 as a strong proxy for the detection of past TCs. The agreement between the delta O-18 chronology and the corresponding TC record (1950-2005) was 96.4% and it was relatively high also for the preceding periods covered by less reliable TC records, specifically 76.1% (1904-1949) and 66.4% (1652-1903). In addition to the prominent TC frequency signal, we found a strong negative correlation (R = -0.65; P &lt; 0.001) between the delta O-18 chronology and TC intensity expressed by the amount of TC precipitation. Our reconstruction revealed that the recent high frequency of landfalling TCs is distinct on a long-term scale. We provide the first long-term evidence of reduced TC activity for two years following large volcanic eruptions. Our results indicate that volcanic ash is a relevant driver of TC activity over northeast Asia via its role on radiative climate forcing. We suggest that large volcanic eruptions modulate large-scale atmospheric and oceanic circulation determining TC genesis and thus TC activity in the western North Pacific. (C) 2021 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Large volcanic eruptions reduce landfalling tropical cyclone activity: Evidence from tree rings

Popis výsledku anglicky

Tropical cyclones (TCs) are one of the most devastating storm systems with high socioeconomic impacts around the world. The drivers of long-term changes in TC frequency and intensity, including the recent global climatic changes, are, however, poorly understood due to short instrumental measurements and a lack of accurate proxy records. Here we present the long-term impacts of large volcanic eruptions on TC activity in northeast Asia. For this purpose, we performed a reconstruction of the frequency and intensity of landfalling TCs based on tree-ring oxygen isotope ratios over the past 350 years. Our results revealed markedly depleted delta O-18 values (P &lt; 0.01) for TC years and confirm tree-ring delta O-18 as a strong proxy for the detection of past TCs. The agreement between the delta O-18 chronology and the corresponding TC record (1950-2005) was 96.4% and it was relatively high also for the preceding periods covered by less reliable TC records, specifically 76.1% (1904-1949) and 66.4% (1652-1903). In addition to the prominent TC frequency signal, we found a strong negative correlation (R = -0.65; P &lt; 0.001) between the delta O-18 chronology and TC intensity expressed by the amount of TC precipitation. Our reconstruction revealed that the recent high frequency of landfalling TCs is distinct on a long-term scale. We provide the first long-term evidence of reduced TC activity for two years following large volcanic eruptions. Our results indicate that volcanic ash is a relevant driver of TC activity over northeast Asia via its role on radiative climate forcing. We suggest that large volcanic eruptions modulate large-scale atmospheric and oceanic circulation determining TC genesis and thus TC activity in the western North Pacific. (C) 2021 Elsevier B.V. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Science of the Total Environment

ISSN

0048-9697

e-ISSN

—

Svazek periodika

775

Číslo periodika v rámci svazku

JUN 25 2021

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000641611000004

EID výsledku v databázi Scopus

2-s2.0-85101238065