Abstract
Based on the reanalysis data from NCEP/NCAR and other observational data, interannual variability of Mascarene high (MH) and Australian high (AH) from 1970 to 1999 is examined. It is shown that interannual variability of MH is dominated by the Antarctic oscillation (AAO), when the circumpolar low in the high southern latitudes deepens, the intensity of MH will be intensified. On the other hand, AH is correlated by AAO as well as El Niño and South Oscillation (ENSO), the intensity of AH will be intensified when El Niño occurs. Both correlation analysis and case study demonstrate that summer rainfall over East Asia is closely related to MH and AH. When MH intensifies from boreal spring to summer (i.e. from austral autumn to winter), there is more rainfall over regions from the Yangtze River valley to Japan, in contrast, less rainfall is found over southern China and western Pacific to the east of Taiwan, and most of regions in mid-latitudes of East Asia. Compared with MH, the effect of AH on summer rainfall in East Asia is limited to localized regions, there is more rainfall over southern China with the intensification of AH. The results in this study show that AAO is a strong signal on interannual timescale, which plays an important role in summer rainfall over East Asia. This discovery is of real importance to revealing the physical mechanism of interannual variability of East Asian summer monsoon and prediction of summer precipitation in China.
Similar content being viewed by others
References
Wang, S., Zhao, Z., Basis for Long-Range Weather Forecast (in Chinese), Shanghai: Shanghai Science and Technology Press, 1987, 201.
Zhao, Z., Wang, S., Interactions between general atmospheric circulation and climate, Acta Meteorologica Sinica (in Chinese), 1979, 37: 58–68.
Huang, S., Tang, M., On the structure of the summer monsoon structure, Scientia Meteorologica Sinica (in Chinese), 1987, 7(3): 1–14.
Chen, L., Zhu, Q., Luo, H. et al., Monsoon Over East Asia (in Chinese), Beijing: China Meteorological Press, 1991, 362.
Tao, S., Xu, S., Guo, Q., Characteristics of zonal and meridional circulation patterns in the tropics and subtropics over East Asia during boreal summer, Acta Meteorologica Sinica (in Chinese), 1962, 32: 91–103.
Tao, S., Chen, L., A review of recent research on the East Asian summer monsoon in China (eds. Chang, C. P., Krishnamurti, T. N.), Monsoon Meteorology, Oxford: Oxford University Press, 1987, 60–92.
Huang, S., Tang, M., Medium-range oscillation and teleconnection of the atmospheric circulation systems over the Northwest Pacific and South Indian Ocean, Scientia Meteorologica Sinica (in Chinese), 1988, 8(4): 1–13.
Xue, F., Lin, Y., Zeng, Q., On the seasonal division of general circulation of the atmosphere and its abrupt change, Part III, climatological mean, Chinese J. Atmos. Sci. (in Chinese), 2002, 26: 308–314.
Yang, X., Huang, S., The Influence of intensity change of Mas-carene high on the general circulation of atmosphere — a numerical experiment, Scientia Meteorologica Sinica (in Chinese), 1989, 9: 125–138.
He, J., Li, J., Li, Y., The Influence of cold air activities over Australia on east Asian summer monsoon — a numerical experiment, Acta Meteorologica Sinica (in Chinese), 1991, 49: 162–169.
Kalnay, E., Kanamitsu, M., Kistler, R. et al., The NCEP/NCAR 40-Year reanalysis project, Bull. Amer. Meteor. Soc., 1996, 77: 437–471.
Smith, T. M., Reynolds, R. W., Livezey, R. E. et al., Reconstruction of historical sea surface temperatures using empirical orthogonal functions, J. Climate, 1996, 9: 1403–1434.
Xie, P., Arkin, P. A., A 17-year monthly analysis based on gauge observations, satellite estimates, and numerical model outputs, Bull. Amer. Meteor. Soc., 1997, 78: 2539–2588.
Gong, D. Y., Wang, S. W., Antarctic oscillation, Chinese Sci. Bull., 1998, 43: 734–738.
Zhao, Z., Summer Drought and Waterlogging in China and Its Environmental Fields (in Chinese), Beijing: China Meteorological Press, 1999, 297.
Wang, B., Wu, R. G., Fu, X, H., Pacific-East Asian teleconnection: how does ENSO affect East Asian climate, J. Climate, 1999, 13: 1517–1536.
Fu, C., The possible linkage between variability of Mei-yu over the Yangtze River valley and state of the Antarctic snow and ice, Chinese Sci. Bull. (in Chinese), 1981, 26: 484–486.
Peng, G., Wang, P. K., Influence of the Antarctic sea-ice on the North-west Pacific subtropical high and its background of ocean-atmospheric circulation, Chinese Sci. Bull., 1989, 34: 1463–1465.
Author information
Authors and Affiliations
About this article
Cite this article
Xue, F., Wang, H. & He, J. Interannual variability of Mascarene high and Australian high and their influences on summer rainfall over East Asia. Chin.Sci.Bull. 48, 492–497 (2003). https://doi.org/10.1007/BF03183258
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF03183258