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Exploring the Holiday Effect on Air Temperatures
Shaojing Jiang1,2, Kaicun Wang3
1State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, Beijing, 100875, China.
Scientific Reports
|December 19, 2018
Summary
Holiday periods show varying temperature effects, with cooling observed early on and warming later. These temperature changes are mainly driven by natural atmospheric oscillations, not solely by reduced emissions.
Area of Science:
- Atmospheric Science
- Climate Science
- Environmental Science
Background:
- Anthropogenic emissions typically decrease on holidays, potentially influencing air temperatures.
- Previous studies suggest a link between holiday periods and temperature variations.
Purpose of the Study:
- To evaluate temperature variations (Tmax, Tmean, Tmin, DTR) during Chinese New Year holidays.
- To determine the cause and significance of observed holiday temperature effects.
Main Methods:
- Analysis of daily meteorological data from 2200 stations in China (1961-2015).
- Comparison of temperature data during holiday periods versus non-holiday periods.
- Spectral analysis to identify atmospheric oscillations influencing temperature.
Main Results:
- Holiday effects on temperature varied over time, showing cooling (1961-1980) and then warming (2001-2015).
- The diurnal temperature range (DTR) showed a cooling effect initially, which later disappeared and then showed a warming effect.
- Observed temperature variations were not statistically significant and were largely explained by natural atmospheric oscillations (7.1, 8.5, 16.2 days).
Conclusions:
- The 'holiday effect' on temperature is not unique or statistically significant.
- Natural atmospheric oscillations, consistent with Rossby wave theory, are the primary drivers of observed temperature variations during holidays.
- Reduced anthropogenic emissions during holidays do not appear to be the main cause of significant temperature changes.
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