North-central China 342 Year Earlywood Density Temperature Reconstruction Chen, F.-H.; Yuan, Y.J. Chen, F.-H. Yuan, Y.J. Air Temperature Reconstruction PITB Pinus tabulaeformis Carr. Chinese pine earth science/paleoclimate/climate reconstructions|tree ring (age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/climate reconstructions|tree ring (maximum surface temperature,ring density,null,degree Celsius,May-Jun,climate reconstructions|tree ring,null,null,N,based on earlywood density) earth science/paleoclimate/climate reconstructions|tree ring (maximum surface temperature,ring density,null,degree Celsius,May-Jun,climate reconstructions|tree ring,smoothed,null,N,based on earlywood density; 10 year moving average) earth science/paleoclimate/reconstructions (Tianshui>LATITUDE 34.45>LONGITUDE 106.15) Cores of Pinus tabulaformis from Tianshui were subjected to densitometric analysis to obtain mean earlywood density data. Climate response analysis indicates that May-June maximum temperature is the main factor limiting the mean earlywood density (EWD) of Chinese pine trees in the Shimen Mountains. Based on the EWD chronology, we have reconstructed May-June maximum temperature 1666 to 2008 for Tianshui, north central China. The reconstruction explains 40.1% of the actual temperature variance during the common period 1953-2008. The temperature reconstruction is representative of temperature conditions over a large area to the southeast and northwest of the sampling site. 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 anomalous atmospheric circulation in the region. It is thus revealed that the mean earlywood density chronology of Pinus tabulaformis has enough potential to reconstruct the temperature variability further into the past. STUDY NOTES: Spring (May-June) maximum temperature reconstruction for Tianshui, north-central China, based on tree ring mean earlywood density data. Data are from Fig.6, Chen et al. 2014, including the maximum temperature reconstruction plus 10-year low-pass filtered series. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Chen, F.-H. Investigator : Yuan, Y.J. 2014-09-10 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/17033 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/asia/china/tianshui2014temp.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/asia/china/tianshui2014temp.txt English https://www.ncdc.noaa.gov/paleo/study/17033 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/asia/china/tianshui2014temp.txt Feng Chen and Yujiang Yuan2014May-June maximum temperature reconstruction from mean earlywood density in north central China and its linkages to the summer monsoon activitiesPLoS ONEe1075019910.1371/journal.pone.0107501http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0107501 START YEAR: 1666 AD * END YEAR: 2008 AD 106.15 34.45 106.15 34.45