Year: 2023
Type: article
Abstract: This study provides evidence for the multiscale nature of atmospheric rivers (ARs) by differentiating them based on high‐ (HF) and low‐frequency (LF) moisture transports. The HF‐dominant ARs exhibit migratory behavior as they are typically accompanied by extratropical cyclones. Their spatial distribution is seasonally synchronized with midlatitude storm activity. On the other hand, the LF‐dominant ARs stay in place as they are associated with quasi‐stationary circulation. They prevail in the subtropical monsoon regions in the summer hemisphere. The ARs are often jointly affected by HF and LF processes. Such intermediate ARs are frequently observed along the poleward boundary of subtropical highs. The latter two AR types are locally more persistent than the HF‐dominant ARs, implying the importance of LF dynamics in long‐lasting AR impacts. We suggest that multiscale analysis of ARs will offer valuable insights into their diversity and hydrological impacts.
Source: Geophysical Research Letters
DOI: 10.1029/2023gl102784
Authors: Chanil Park, Seok‐Woo Son, Bin Guan
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDG: Climate action
Open Access status: gold
Estimated APC paid: $2,900
Funders: National Aeronautics and Space Administration, Department of Water Resources, Society of Wetland Scientists, Forecast Public Art, National Research Foundation, Ministry of Oceans and Fisheries, Korea Meteorological Administration, Nuclear Safety and Security Commission, National Research Foundation of Korea, Korea Institute of Marine Science and Technology promotion, National Institute of Meteorological Sciences, Ministry of Science and ICT, South Korea, Jet Propulsion Laboratory
OpenAlex ID: W4377821885