Impact of rising air temperature on groundwater temperature in Korea

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This research aims to assess how rising air temperatures impact groundwater temperatures in South Korea.
Using long-term groundwater temperature data (1996–2022) from 25 observation wells in seven major cities.
Analyzing changes in annual average, maximum, and minimum groundwater temperatures using linear regression and Mann–Kendall tests.
Quantifying correlation between air temperature and groundwater temperature using Pearson correlation analysis.
Groundwater temperatures exhibited an overall increasing trend.
Observed warming rates ranged from approximately 0.04 to 1.58℃ per decade.
The most significant increase was noted in the minimum groundwater temperatures, indicating a current phenomenon rather than a future threat.

Evaluates the effect of air temperature rise on groundwater temperature across seven major cities, indicating urgent management needs.

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Jeon et al. (2026) studied this question.

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