Variations in land-atmosphere coupling during drought-heatwave events
Princeton University · National Oceanic and Atmospheric Administration · +2 more institutions
Abstract
Droughts and heatwaves are linked through different land-atmosphere coupling pathways. While high temperatures and depleted soil moisture (SM) characterize all drought-heatwave events, latent heat flux (LHF) reveals the dominant forcing mechanism driving these events. Our grid-based analysis of six drought-heatwave events since 2000 shows spatially inhomogeneous land-atmosphere coupling associated with surface flux partitioning. Atmospherically driven regimes, characterized by increased LHF following hot temperature anomalies, accounted for the majority of the 2022 East Asia event (64.8%). Land surface-driven regimes, exhibiting LHF deficits following dry SM anomalies, were most prevalent in the 2023 Central…
Citation impact
- FWCI
- 61.34
- Percentile
- 99%
- References
- 75
Authors
4- DYDonghyuck YoonCorresponding
Princeton University
- JCJan-Huey Chen
National Oceanic and Atmospheric Administration, NOAA Geophysical Fluid Dynamics Laboratory
- HHHsin Hsu
National Taiwan University, Princeton University
- KLKirsten L. Findell
National Oceanic and Atmospheric Administration, NOAA Geophysical Fluid Dynamics Laboratory
Topics & keywords
- Predictability
- Forcing (mathematics)
- Coupling (piping)
- Flux (metallurgy)
- Latent heat
- Event (particle physics)
- Moisture
- Life in Land