The Role of Atmospheric Transport for El Nino-Southern Oscillation Teleconnections

被引：3

作者：

Baier, K. ^{[1
]}

Duetsch, M. ^{[1
]}

Mayer, M. ^{[1
,2
]}

Bakels, L. ^{[1
]}

Haimberger, L. ^{[1
]}

Stohl, A. ^{[1
]}

机构：

[1] Univ Vienna, Dept Meteorol & Geophys, Vienna, Austria

[2] European Ctr Medium Range Weather Forecasts, Reading, England

来源：

GEOPHYSICAL RESEARCH LETTERS | 2022年 / 49卷 / 23期

基金：

奥地利科学基金会;

关键词：

Lagrangian modeling; energy transport; ENSO teleconnections; PARTICLE DISPERSION MODEL; TROPICAL PACIFIC; INTERANNUAL VARIABILITY; ATLANTIC OSCILLATION; CLIMATE IMPACTS; INDIAN-OCEAN; LA-NINA; ENSO; PRECIPITATION; ENERGY;

D O I：

10.1029/2022GL100906

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The El Nino-Southern Oscillation (ENSO) is one of Earth's main modes of climate variability, having huge impacts on weather, agriculture, and people worldwide. Although these impacts and teleconnections have been studied for decades, the role of atmospheric transport is not completely understood. We analyze the atmospheric transport outgoing from the Equatorial Pacific with the Lagrangian particle dispersion model FLEXPART driven by reanalysis data. Our results demonstrate the interocean-basin exchange via the atmosphere: anomalously energetic air from the ENSO region mainly remains within the Tropics and Subtropics, while more air is transported toward the east during El Nino. Transport of anomalous moist air can directly be linked to several observed teleconnections, for example, droughts in the Amazon Basin and precipitation in Southeastern U.S. during El Nino. These results show that atmospheric transport plays a role in several ENSO teleconnections.

引用

页数：12

共 97 条

[21] Parameterization of convective transport in a Lagrangian particle dispersion model and its evaluation [J].