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Related Experiment Video

Updated: May 14, 2025

Thermal Limits Determination for Zooplankton Using a Heat Block

Thermal Limits Determination for Zooplankton Using a Heat Block

Published on: November 18, 2022

Subsurface heatwaves in lakes.

R Iestyn Woolway¹, Miraj B Kayastha^2,3, Yan Tong⁴

¹School of Ocean Sciences, Bangor University, Menai Bridge, UK.

Nature Climate Change

|May 12, 2025

Summary

This summary is machine-generated.

Subsurface lake heatwaves are frequent, longer-lasting, and increasing in intensity. Monitoring these extreme hot water events below the surface is crucial for understanding aquatic ecosystem disruption.

Keywords:

Hydrology Limnology

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Last Updated: May 14, 2025

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Published on: May 15, 2017

Area of Science:

Environmental Science
Aquatic Ecology
Climate Change Science

Background:

Lake heatwaves, extreme hot water events, disrupt aquatic ecosystems.
Surface heatwaves are well-studied, but their vertical structures remain largely unexplored.

Purpose of the Study:

To analyze the characteristics of subsurface lake heatwaves.
To investigate the frequency, duration, and intensity of deep-water and vertically compounding heatwaves.

Main Methods:

Utilized a spatiotemporal modeling framework.
Analyzed lake heatwave data over the past 40 years.

Main Results:

Subsurface heatwaves are frequent, longer-lasting, and less intense than surface events.
Deep-water heatwaves show significant increases in frequency, duration, and intensity.
Vertically compounding heatwaves have also risen in recent decades.
Future projections indicate intensifying heatwave patterns, especially under high emissions.

Conclusions:

Subsurface heatwaves are a significant and growing phenomenon in lakes.
Increased frequency and intensity of deep-water and compounding heatwaves pose risks to aquatic ecosystems.
Subsurface monitoring is essential for accurate impact assessment and prediction of lake heatwaves.