Reconstruction of spring temperature on the southern edge of the Gobi Desert, Asia, reveals recent climatic warming

Abstract

We have reconstructed the spring (March–June) temperature from 1701 to 2008 for the Changling Mountains, the southern edge of the Gobi Desert, using mean earlywood density data of Pinus tabulaeformis. The reconstruction explains 41.7% of the actual temperature variance during the common period 1959–2008. The temperature reconstruction is representative of temperature conditions over a large area of Central and East Asia, especially in the Gobi Desert. Significant spectral peaks are identified at 2.0–2.8 and 26.9years. Our temperature reconstruction successfully captured most recent warming and agreed in general with other temperature reconstructions from nearby regions, eastern China and Northern Hemisphere on a decadal timescale. Our reconstructed temperature is significantly correlated with sea surface temperature in the western tropical and northern Pacific Ocean. Preliminary analysis of links between large-scale climatic variation and the temperature reconstruction shows that there is a relationship between extremes in spring temperature and the Asian summer monsoon circulations.