Inconsistent Enso teleconnections over East Asia in early and late winter
Role of Siberian land-atmosphere coupling
Bibliographic Data
| ID | 15544181 |
|---|---|
| Authors | Xiadong An (0000-0002-8992-0406, Yunnan University, corresponding author), Wen Chen (0000-0002-6839-8890, Yunnan University), Tianjiao Ma (0000-0002-5444-0840, Yunnan University), Lifang Sheng (0000-0002-4839-8287, Ocean University of China) |
| Year | 2025 |
| Volume | 20 |
| Issue | 2 |
| Pages | 024030-024030 |
| Publication date | 2025-01-16 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/adab08 |
| OpenAlex | W4406444130 |
| Language | EN |
| Citations received | 1 |
| References cited | 50 |
The El Niño–Southern Oscillation (ENSO) teleconnections over East Asia display inconsistency between early and late winter, yet the undering physical mechanisms remain unclear. Employing causal inference analysis, including Liang-Kleeman information flow and PC-MCI causal discovery, our study reveals a stable information flow from ENSO to the upper tropospheric atmospheric circulation (250 hPa) over southern East Asia. Building on this, we explore the reason behind the differences in ENSO teleconnections during early and late winter. Findings indicate that Siberian snow water equivalent acts as a ‘land bridge’, storing ENSO signals from early to late winter, which are then released via an ‘atmospheric bridge’ in late winter. Specifically, reduced snow water equivalent from early to late winter facilitates lower surface temperatures in late winter, serving as a cooling source to initiate an ENSO-related wave train over Eurasia. This leads to an inconsistent ENSO teleconnection in late winter, contrasting with early winter, and vice versa
Atmosphere (unit · Atmospheric sciences · China · Climatology · East Asia · El Niño Southern Oscillation · Geography · Meteorology · Multivariate ENSO index · Southern oscillation · Teleconnection · Arctic and Russian Policy Studies · Atmospheric and Environmental Gas Dynamics · Environmental Science · Methane Hydrates and Related Phenomena · Geology
| Citations per year | 1 |
|---|---|
| Citation span | 2025 - 2025 (1) |
| Highly cited | No |