caa a22 4500 445799676 CHVBK 20180317145136.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00704-010-0294-7 doi (NATIONALLICENCE)springer-10.1007/s00704-010-0294-7 A 150-year reconstructed summer Asian-Pacific Oscillation index and its association with precipitation over eastern China [Elektronische Daten] [Ge Liu, Ping Zhao, Junming Chen] Reconstructing the long-term series of the East Asian summer monsoon (EASM) indices may help understand long-term variability of EASM and its associations with precipitation. In this study, the summer middle-upper tropospheric temperature over the Asian-North Pacific sector is reconstructed from sea level pressure during the past 150years, and then an atmospheric thermal contrast between Asia and the North Pacific, called the Asian-Pacific Oscillation (APO) index, is calculated from the reconstructed temperature. The results show that the APO phenomenon may occur in the reconstructed temperature fields, and its index has a significant positive/negative correlation with SST over the extratropical North Pacific/the tropical central-eastern Pacific in the past 150years. The reconstructed summer APO index shows inter-decadal variability, with a positive phase in the 1870-1890s, the 1920s, and the 1940-1970s, indicating a stronger thermal contrast between Asia and the North Pacific, and with a negative phase in the 1860s, the 1900-1910s, and the 1980-1990s, indicating a weaker thermal contrast. Corresponding to a higher APO index in earlier decades of the twentieth century, there are more rainfall to the south of the Yangtze River and over North China and less rainfall over the Huaihe River valley. In the recent decades, however, more- and less-rain belts shifted southwards when the APO index is higher. During 1850-1900, the reconstructed APO index also showed a significant positive correlation with precipitation in some regions of North China. The Author(s), 2010 Liu Ge Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut Zhao Ping National Meteorological Information Centre, China Meteorological Administration, 100081, Beijing, China aut Chen Junming Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut Theoretical and Applied Climatology Springer Vienna 103/1-2(2011-01-01), 239-248 0177-798X 103:1-2<239 2011 103 704 https://doi.org/10.1007/s00704-010-0294-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00704-010-0294-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Ge Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut NATIONALLICENCE 700 1- Zhao Ping National Meteorological Information Centre, China Meteorological Administration, 100081, Beijing, China aut NATIONALLICENCE 700 1- Chen Junming Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut NATIONALLICENCE 773 0- Theoretical and Applied Climatology Springer Vienna 103/1-2(2011-01-01), 239-248 0177-798X 103:1-2<239 2011 103 704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer