caa a22 4500 445301023 CHVBK 20180317142557.0 cr unu---uuuuu 170323e20100201xx s 000 0 eng 10.1007/s11430-009-0151-7 doi (NATIONALLICENCE)springer-10.1007/s11430-009-0151-7 Oscillation characteristics of summer precipitation in the Huaihe River valley and relevant climate background [Elektronische Daten] [FengYing Wei, Ting Zhang] Based on the summer precipitation data from the Huaihe River valley and the middle and lower reaches of the Yangtze River from 1922 to 2007, we analyzed the interannual and interdecadal oscillation and probability distribution characteristics of summer precipitation in the Huaihe River valley during the same period, using the wavelet transform and generalized extreme distribution methods. Whereby, we studied the climate background of East Asia Summer Monsoon (EASM), Sea Surface Temperature (SST), East Asia telecorrelation circulation, and their relationship with the interannual and interdecadal oscillation of summer precipitation in the Huaihe River valley. We further compared the difference of interdecadal oscillation of summer precipitation and the relevant climate background between the Huaihe River valley and the middle and lower reaches of the Yangtze River. The results show that: 1) The intensity change of quasi-biennial oscillation (QBO) of summer precipitation in the Huaihe River valley is consistent with that of interdecadal oscillation. The summer precipitation in the Huaihe River valley has been more than normal since the end of the 1990s, and the QBO is very significant. Meanwhile, the probability of occurrence of extreme heavy rainfall increased obviously. 2) The interdecadal oscillation of summer precipitation in the Huaihe River valley has a close relationship with the Pacific Decadal Oscillation (PDO) and interdecadal oscillation of EASM. When PDO is in the cold phase and EASM weakens, the summer precipitation will be greater than normal. 3) QBO of summer precipitation in the Huaihe River valley is mainly controlled by that of EASM, and it has a relationship with a circulation pattern of "positive-negative-positive” from the high to the low latitudes in East Asia. 4) There is interdecadal phase difference in summer precipitation between the Huaihe River valley and the middle and the lower reaches of the Yangtze River, which is mainly related to the intensity and position of West Pacific subtropical high. Science in China Press and Springer Berlin Heidelberg, 2010 Huaihe River valley nationallicence summer precipitation nationallicence quasi-biennial oscillation nationallicence interdecadal oscillation nationallicence climate background nationallicence Wei FengYing State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut Zhang Ting State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut Science China Earth Sciences SP Science in China Press 53/2(2010-02-01), 301-316 1674-7313 53:2<301 2010 53 11430 https://doi.org/10.1007/s11430-009-0151-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-009-0151-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wei FengYing State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut NATIONALLICENCE 700 1- Zhang Ting State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut NATIONALLICENCE 773 0- Science China Earth Sciences SP Science in China Press 53/2(2010-02-01), 301-316 1674-7313 53:2<301 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer