Abstract
This study examined the variability in frequency of tropical night occurrence (i.e., minimum air temperature >25°C) in Beijing, using a homogenized daily temperature dataset during the period 1960–2008. Our results show that tropical nights occur most frequently in late July and early August, which is consistent with relatively high air humidity associated with the rainy season in Beijing. In addition, year-to-year variation of tropical night occurrence indicates that the tropical nights have appeared much more frequently since 1994, which can be illustrated by the yearly days of tropical nights averaged over two periods: 9.2 days of tropical nights per year during 1994–2008 versus 3.15 days during 1960–1993. These features of tropical night variations suggest a distinction between tropical nights and extreme heat in Beijing.
We further investigated the large-scale circulations associated with the year-to-year variation of tropical night occurrence in July and August, when tropical nights appear most frequently and occupy 95% of the annual sum. After comparing the results in the two reanalysis datasets (NCEP/NCAR and ERA-40) and considering the possible effects of decadal change in the frequency of tropical nights that occurred around 1993/94, we conclude that on the interannual time scale, the cyclonic anomaly with a barotropic structure centered over Beijing is responsible for less frequent tropical nights, and the anticyclonic anomaly is responsible for more frequent occurrence of tropical nights over Beijing.
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References
Cinar, Y., A. M. Senyol, and K. Duman, 2001: Blood viscosity and blood pressure: Role of temperature and hyperglycemia. American Journal of Hypertension, 14, 433–438.
Ding, T., and W. Qian, 2011: Geographical patterns and temporal variations of regional dry and wet heatwave events in China during 1961–2008. Adv. Atmos. Sci., 28, 322–337, doi: 10.1007/s00376-010-9236-7.
Ding, T., W. Qian, and Z. Yan, 2010: Changes in hot days and heat waves in China during 1961–2007. Int. J. Climatol., 30, 1452–1462.
Gong, D. Y., Y. Z. Pan, and J. A. Wang, 2004: Changes in extreme daily mean temperatures in summer in eastern China during 1955–2000. Theor. Appl. Climatol., 77, 25–37.
Huang, G., 2006: The assessment and difference of the interdecadal variations of climate change in northern part of China with the NCEP/NCAR and ERA-40 reanalysis data. Climatic and Environmental Research, 11, 310–320. (in Chinese)
Inoue, T., and J. Matsumoto, 2004: A comparison of summer sea level pressure over east Eurasia between NCEP-NCAR reanalysis and ERA-40 for the period of 1960–99. J. Meteor. Soc. Japan, 82, 951–958.
Jung, W. S., J. K. Park, U. B. Kim, and J. H. Song, 2009: Study on the establishment of threshold criteria for heat health watch warning system in Korea. Part II: Improvement of criteria. Journal of the Environmental Sciences, 18, 781–796. (in Korean)
Kalnay, E., and Coauthors, 1996: The NCEP/NCAR 40-year reanalysis project. Bull. Amer. Meteor. Soc., 77, 437–471.
Kwon, M., J.-G. Jhun, and K.-J. Ha, 2007: Decadal change in East Asian summer monsoon circulation in the mid-1990s. Geophys. Res. Lett., 34, L21706, doi: 10.1029/2007GL031977.
Li, Z., and Z. W. Yan, 2009: Homogenized daily mean/maximum/minimum temperature series for China from 1960–2008. Atmos. Oceanic Sci. Lett., 2, 237–243.
Li, Z., and Z. W. Yan, 2010: Application of multiple analysis of series for homogenization to Beijing daily temperature series (1960–2008). Adv. Atmos. Sci., 27, 777–787, doi: 0.1007/s00376-009-9052-0.
Lin, Z., and R. Lu, 2008: Abrupt northward jump of the East Asian upper-tropospheric jet stream in midsummer. J. Meteor. Soc. Japan, 84, 857–866.
Lu, R.-Y., 2001: Interannual variability of the summertime North Pacific subtropical high and its relation to atmospheric convection over the Warm Pool. J. Meteor. Soc. Japan, 79, 771–783.
Meehl, G. A., and C. Tebaldi, 2004: More intense, more frequent and longer heat waves in the 21st century. Science, 305, 994–997.
Park, J. K., and D. G. Lee, 2006: Correlation between daily mortality and temperature of Seoul, in summer. Proc. 99th Annual Meeting of AWMA, New Orleans, LA., Paper No. 06-A-384-AWMA.
Park, J. K., W. S. Jung, and U. B. Kim, 2008: A study on development of the extreme heat standard in Korea. Journal of the Environmental Sciences, 17, 657–669. (in Korean)
Qian, C., Z. Yan, Z. Wu, C. Fu, and K. Tu, 2011: Trends in temperature extremes in association with weather-intraseasonal fluctuations in eastern China. Adv. Atmos. Sci., 28, 297–309, doi: 10.1007/s00376-010-9242-9.
Sun, Q., H. Wang, and W. Yuan, 2011: Decadal variability of the extreme hot event in China and its association with atmospheric circulations. Climatic and Environmental Research, 16, 199–208. (in Chinese)
Tan, J., L. S. Kalkstein, J. Huang, S. Lin, H. Yin, and D. Shao, 2004: An operational heat/health warning system in Shanghai. International Journal of Biometeorology, 48, 157–162.
Thornburgh, C., 2001: Are America’s cities ready for the hot times ahead? SOARS summer 2001 Program, 1–14.
Uppala, S. M., and Coauthors, 2005: The ERA-40 reanalysis. Quart. J. Roy. Meteor. Soc., 131, 2961–3012.
Wang, X. Q., and Y. B. Gong, 2010: The impact of an urban dry island on the summer heat wave and sultry weather in Beijing City. Chinese Sci. Bull., 55, 1657–1661, doi: 10.1007/s11434-010-3088-5.
Wei, J., and J. Sun, 2007: The analysis of summer heat wave and sultry weather in North China. Climatic and Environmental Research, 12, 453–463. (in Chinese)
Wei, K., and W. Chen, 2009: Climatology and trend of high temperature extremes across China in summer. Atmos. Oceanic Sci. Lett., 2, 153–158.
Wei, K., and W. Chen, 2011: An abrupt increase in the summer high temperature extreme days across China in the mid-1990s. Adv. Atmos. Sci., 28(5), 1023–1029, doi: 10.1007/s00376-010-0080-6.
Wei, J., H. Yang, and S. Sun, 2004: Relationship between the anomaly longitudinal position of subtropical high in the western Pacific and severe hot weather in North China in summer. Acta Meteorologica Sinica, 62, 308–316. (in Chinese)
Wu, R., J. L. Kinter, and B. P. Kirtman, 2005: Discrepancy of interdecadal changes in the Asian region among the NCEP-NCAR reanalysis, objective analyses, and observations. J. Climate, 18, 3048–3067.
Yang, S., K. M. Lau, K. M. Kim, 2002: Variations of the East Asian jet stream and Asian-Pacific-American winter climate anomalies. J. Climate, 15, 306–325.
Zhai, P., and X. Pan, 2003: Trends in temperature extremes during 1951–1999 in China. Geophys. Res. Lett., 30, 1913, doi: 10.1029/2003GL018004.
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Park, JK., Lu, R., Li, C. et al. Interannual variation of tropical night frequency in Beijing and associated large-scale circulation background. Adv. Atmos. Sci. 29, 295–306 (2012). https://doi.org/10.1007/s00376-011-1141-1
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DOI: https://doi.org/10.1007/s00376-011-1141-1