Effects of changes in land use on the diurnal temperature range: A long-term data analysis

Kazuki Ueno, Shunji Ohta*

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review


Air temperature is sensitive to changes in local land use. In this study, we investigated the effect of dam lake water on the air temperature based on open climate data. Lake Sayama (and its surroundings), located in Tokorozawa City, 30 km from Tokyo, Japan, was undertaken as the case study. This artificial lake was empty for three years for seismic reinforcement. To remove the effects of time-series changes in the air temperature, nearby observation stations where the air temperature difference did not change from that of Tokorozawa during the analysis period were selected. Analysis of data revealed that the minimum air temperature increased, and the maximum air temperature slightly decreased during the period when the dam reservoir was full throughout the year. Moreover, the reduction in the diurnal range of air temperatures was 1.78 °C in December and 0.46 °C in August. The effect of the lake on the air temperature reflected the size of the lake and the climatic zone. These results highlight the need for maintaining a network of meteorological observation stations, whose data can prove useful for identifying local climate changes due to land use.

Original languageEnglish
Article number021001
JournalEnvironmental Research Communications
Issue number2
Publication statusPublished - 2020


  • Air temperature
  • Dam lake
  • Land use change
  • Local climate

ASJC Scopus subject areas

  • Environmental Science(all)
  • Atmospheric Science
  • Earth-Surface Processes
  • Geology
  • Food Science
  • Agricultural and Biological Sciences (miscellaneous)


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