China 530 Year Multiproxy May-September Precipitation Field Reconstructions Shi, F.; Zhao, S.; Guo, Z.; Goosse, H.; Yin, Q. Shi, F. Zhao, S. Guo, Z. Goosse, H. Yin, Q. Precipitation Reconstruction earth science/paleoclimate/tree ring (tree ring standardized growth index,null,null,null,null,tree ring,composited,null,N,null) earth science/paleoclimate/climate reconstructions|historical|tree ring (precipitation,null,null,millimeter per day,May-Sep,climate reconstructions|historical|tree ring,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoclimatic modeling (age,null,null,year Common Era,null,climate reconstructions|paleoclimatic modeling,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoclimatic modeling (longitude,null,null,degree east,null,climate reconstructions|paleoclimatic modeling,null,null,N,null) earth science/paleoclimate/paleoclimatic modeling (precipitation,null,null,millimeter per day,May-Sep,paleoclimatic modeling,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoclimatic modeling (latitude,null,null,degree north,null,climate reconstructions|paleoclimatic modeling,null,null,N,null) earth science/paleoclimate/reconstructions (China>LATITUDE >LONGITUDE ) The dominant modes of variability of precipitation for the whole of China over the past millennium and the mechanism governing their spatial structure remain unclear. This is mainly due to insufficient high-resolution proxy records of precipitation in western China. Numerous tree-ring chronologies have recently been archived in publicly available databases through PAGES2k activities, and these provide an opportunity to refine precipitation field reconstructions for China. Based on 479 proxy records, including 371 tree-ring width chronologies, a tree-ring isotope chronology, and 107 drought/flood indices, we reconstruct the precipitation field for China for the past half millennium using the optimal information extraction method. A total of 3631 of 4189 grid points in the reconstruction field passed the cross-validation process, accounting for 86.68% of the total number of grid points. The first leading mode of variability of the reconstruction shows coherent variations over most of China. The second mode is a north-south dipole in eastern China characterized by variations of the same sign in western China and northern China (except for Xinjiang province). It is likely controlled by the El Niño-Southern Oscillation (ENSO) variability. The third mode is a "sandwich" triple mode in eastern China including variations of the same sign in western China and central China. The last two modes are reproduced by most of the six coupled climate models' last millennium simulations performed in the framework of the Paleoclimate Modelling Intercomparison Project Phase III (PMIP3). In particular, the link of the second mode with ENSO is confirmed by the models. However, there is a mismatch between models and proxy reconstructions in the time development of different modes. This mismatch suggests the important role of internal variability in the reconstructed precipitation mode variations of the past 500 years. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Shi, F. Investigator : Zhao, S. Investigator : Guo, Z. Investigator : Goosse, H. Investigator : Yin, Q. 2017-12-22 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/23056 https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/shi2017/readme-shi2017precip.txt https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/shi2017/ https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/shi2017/readme-shi2017precip.txt https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/shi2017/ English https://www.ncdc.noaa.gov/paleo/study/23056 https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/shi2017/readme-shi2017precip.txt https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/shi2017/ Feng Shi, Sen Zhao, Zhengtang Guo, Hugues Goosse, and Qiuzhen Yin2017Multi-proxy reconstructions of May-September precipitation field in China over the past 500 yearsClimate of the Past13121919-193810.5194/cp-13-1919-2017https://www.clim-past.net/13/1919/2017/ START YEAR: 1470 AD * END YEAR: 2000 AD 70 25 125 45