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Two major modes of East Asian marine heatwaves
- Source :
- Environmental Research Letters. 15:074008
- Publication Year :
- 2020
- Publisher :
- IOP Publishing, 2020.
-
Abstract
- We show two major modes of East Asian marine heatwaves (MHWs) associated with two contrasting sea surface temperature patterns over the subtropical western North Pacific (WNP). In the first MHW mode, ocean warming over East Asia occurs along with the subtropical WNP from the earlier winter by an El Niño-Southern Oscillation. The basin-wide ocean warming is finally intensified to an extreme warming state around East Asia, where a high-pressure region in zonal waves across the Eurasian continent passes. In contrast, at the early stage, the second MHW mode is unfavorable with ocean cooling. However, MHWs over East Asia occur due to a significant intensification of a zonally elongated high-pressure zone in response to anomalous subtropical convection in addition to mid-latitude zonal waves. Due to the importance of persistent ocean warming as well as immediate atmospheric forcing, MHW inducible oceanic and atmospheric interactions are clearly distinguishable from those of atmospheric heatwaves.
- Subjects :
- Convection
010504 meteorology & atmospheric sciences
Renewable Energy, Sustainability and the Environment
Effects of global warming on oceans
Public Health, Environmental and Occupational Health
Subtropics
010501 environmental sciences
Atmospheric forcing
01 natural sciences
Sea surface temperature
Dipole mode
Climatology
Eurasian continent
Environmental science
East Asia
0105 earth and related environmental sciences
General Environmental Science
Subjects
Details
- ISSN :
- 17489326
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Environmental Research Letters
- Accession number :
- edsair.doi...........4bb2826eb69ef61fb331756a52e31561