Method for analyzing short-term temperature fluctuation

Abstract

The invention relates to a method for analyzing short-term temperature fluctuation, which comprises the following steps of: collecting a multi-year day-by-day temperature sequence of a certain place,respectively calculating the temperature difference between the daily temperature and the first day in the time length by taking data in the length of a research time period to form a difference group, and forming a plurality of difference sequences on the basis of data of the multi-year corresponding difference group, sorting the difference value sequences according to the size, and calculating upper and lower thresholds; and judging the size relation between the corresponding difference value group every day and the upper and lower thresholds of the corresponding difference value sequence, so that whether air temperature fluctuation occurs in the length of the research time period can be judged. According to the method, the length of the research time period and the threshold proportionof fluctuation can be freely defined, the influence of seasonal change on temperature fluctuation is eliminated, the day-by-day temperature fluctuation amplitude and the fluctuation frequency in the time period can be obtained, and the fluctuation direction can be indicated by the positive and negative of the fluctuation amplitude index.

Description

technical field [0001] The invention belongs to the technical field of meteorological analysis, and in particular relates to a method for analyzing short-term temperature fluctuations. Background technique [0002] Temperature has always been a major focus in the field of climate research worldwide, and temperature change is a very important indicator of climate change. [0003] Since the phenomenon of climate warming has attracted people's attention, the research and control of temperature change has always been the focus of attention of various countries. In order to prevent the trend of global warming, the United Nations formulated the "United Nations Framework Convention on Climate Change" in 1992, which was signed in the Brazilian city of Rio de Janeiro in the same year. At the same time, since temperature changes (fluctuations) on different time scales help to understand large-scale global climate change, it has also become one of the hot topics in the field of climat...

AI Technical Summary

Problems solved by technology

The disadvantage is that it can only reflect the temperature fluctuation (deviation) range, and cannot identify the direction of temperature fluctuation (cooling or heating) and frequency

[0017] Previous temperature fluctuation analysis methods have their own limitations, and it is difficult to balance the length of the research period, the elimination of seasonal effects, and the availability of fluctuation indicators.

It is not only easy to set the length of the research period, but also eliminate seasonal effects, and can clearly judge the magnitude and frequency of temperature fluctuations, which is difficult to achieve by using a unified and existing temperature fluctuation analysis and calculation method

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