Abstract
We extracted 374 pieces of records of frost date from historical documents. Using these records, we reconstructed winter half-year (October to next April) temperature series, with a resolution of 5-year, for the North China Plain during 1651-2010. The results show that the temperature changes in the North China Plain were divided into four phases. With the reference period of 1951-1980, two cold phases, 1651-1700 and 1781-1900, have cold anomaly of 0.83°C and 0.60°C respectively. However, between the two cold phases, 1701-1780 was a relative warm phase with the cold anomaly of 0.36°C referring to the mean of 1951-1980. After the 1900, the climate came into a warm phase. The mean temperature of 1901-2010 was 0.11°C higher than the mean of 1951-1980. During 1651-2010, the 1996-2000 is the warmest 5-year with the warm anomaly of 1.25°C than that of the reference period of 1951-1980.
Highlights
The reconstruction of historical temperature change can provide important background for understanding natural climate variability, which is valuable for assessing anthropogenic role in current climate changes and predicting future scenarios
To maintain the continuity of the temperature series, we filled the gaps with mean values derived from 6 values before and after the gap
The characteristics of the temperature series are as follows (Table 1)
Summary
The reconstruction of historical temperature change can provide important background for understanding natural climate variability, which is valuable for assessing anthropogenic role in current climate changes and predicting future scenarios. It has received much attention from the IPCC and IGBP [1] [2]. Japan springtime temperature variations were reconstructed since the 9th century using phonological data series of cherry tree [5] Other historical sources, such as lake freezing and weather diary date records were used to reconstruct summer and winter temperature series [6]. Martin Možný reconstructed mean March-June temperatures in the Czech Republic using cereal harvest dates [11]
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.