LIAO Fei, DENG Hua, GAO Zhiqiu, CHAN Pak-wai. The research on boundary layer evolution characteristics of Typhoon Usagi based on observations by wind profilers[J]. Acta Oceanologica Sinica, 2017, 36(9): 39-44. doi: 10.1007/s13131-017-1109-9
Citation: LIAO Fei, DENG Hua, GAO Zhiqiu, CHAN Pak-wai. The research on boundary layer evolution characteristics of Typhoon Usagi based on observations by wind profilers[J]. Acta Oceanologica Sinica, 2017, 36(9): 39-44. doi: 10.1007/s13131-017-1109-9

The research on boundary layer evolution characteristics of Typhoon Usagi based on observations by wind profilers

doi: 10.1007/s13131-017-1109-9
  • Received Date: 2016-06-01
  • Vertically exploring the characteristics of the typhoon boundary layer (TBL) plays an important role in recognizing typhoon structure. The boundary layer radial direction and tangential wind characteristics of Typhoon Usagi based on the observational data of three boundary layer wind profiler stations along the route of Typhoon Usagi (No. 1319) and by combining with sounding data. The results show that: (1) maximum tangential wind appears in the vicinity of the eye area of Usagi, and it basically maintains a height of around 1 800 m when Usagi keeps a strong typhoon level, with the rapidly decreasing strength of Usagi after it lands, the speed of the maximum tangential wind and its vertical range both decrease; (2) the height of the maximum tangential wind is close to that of the inflow layer top of the typhoon, and is greater than that of the boundary layer estimated on the basis of Richardson number or potential temperature gradient, while the height of mixed layer judged on the basis of the signal-to-noise ratio (SNR) or its gradient is usually low; (3) the the boundary layer height can reach higher than 2 100 m before Usagi lands. When the typhoon level or above is achieved, the boundary layer height observed by various stations does not change much, basically staying at between 1 200 and 1 600 m. With the decreasing strength of Usagi after its landfall, the boundary layer height rapidly drops.
  • loading
  • Angevine W M, White A B, Avery S K. 1994. Boundary-layer depth and entrainment zone characterization with a boundary-layer profiler. Boundary-Layer Meteorology, 68(4):375-385
    Dai C, Wang Q, Kalogiros J A, et al. 2014. Determining boundary-layer height from aircraft measurements. Boundary-Layer Meteorology, 152(3):277-302
    Emanuel K A. 1986. An air-sea interaction theory for tropical cyclones. Part I:steady-state maintenance. Journal of the Atmospheric Sciences, 43(6):585-605
    Franklin J L, Black M L, Valde K. 2003. GPS dropwindsonde wind profiles in hurricanes and their operational implications. Weather and Forecasting, 18(1):32-44
    Kepert J D. 2006. Observed boundary layer wind structure and balance in the hurricane core. Part I:hurricane Georges. Journal of the Atmospheric Sciences, 63(9):2169-2193
    Kepert J D. 2012. Choosing a boundary layer parameterization for tropical cyclone modeling. Monthly Weather Review, 140(5):1427-1445
    2013. How does the boundary layer contribute to eyewall replacement cycles in axisymmetric tropical cyclones?. Journal of the Atmospheric Sciences, 70(9):2808-2830
    Kepert J D, Schwendike J, Ramsay H. 2016. Why is the tropical cyclone boundary layer not "well mixed"?. Journal of the Atmospheric Sciences, 73(3):957-973
    Li Yubin, Cheung K K W, Chan J C L. 2015. Modelling the effects of land-sea contrast on tropical cyclone precipitation under environmental vertical wind shear. Quarterly Journal of the Royal Meteorological Society, 141(687):396-412
    Liao Fei, Deng Hua, Hou Ling. 2016. Quality analysis and process of wind profiler data on rain condition. Journal of Tropical Meteorology (in Chinese), 32(5):588-596
    Ma Leiming, Bao Xuwei. 2016. Parametrization of planetary boundary-layer height with helicity and verification with tropical cyclone prediction. Boundary-Layer Meteorology, 160(3):569-593
    Ma hongyun, Ma Jingxian, Luo Zhexian. 2003. Effects of tangential wind profile on typhoon's track and intensity. Journal of Nanjing Institute of Meteorology (in Chinese), 26(6):780-787
    Moss M S, Merceret F J. 1976. A note on several low-layer features of Hurricane Eloise (1975). Monthly Weather Review, 104(7):967-971
    Moss M S. 1978. Low-level turbulence structure in the vicinity of a hurricane. Monthly Weather Review, 106(6):841-849
    Rotunno R, Chen Y, Wang W, et al. 2009. Large-eddy simulation of an idealized tropical cyclone. Bulletin of the American Meteorological Society, 90(12):1783-1788
    Smith R K. 2003. A simple model of the hurricane boundary layer. Quarterly Journal of the Royal Meteorological Society, 129(589):1007-1027
    Smith R K, Montgomery M T. 2008. Balanced boundary layers used in hurricane models. Quarterly Journal of the Royal Meteorological Society, 134(635):1385-1395
    Smith R K, Montgomery M T, Van Sang N. 2009. Tropical cyclone spin-up revisited. Quarterly Journal of the Royal Meteorological Society, 135(642):1321-1335
    Smith R K, Vogl S. 2008. A simple model of the hurricane boundary layer revisited. Quarterly Journal of the Royal Meteorological Society, 134(631):337-351
    Zeng Xubin, Brunke M A, Zhou Mingyu, et al. 2004. Marine atmospheric boundary layer height over the eastern Pacific:data analysis and model evaluation. Journal of Climate, 17(21):4159-4170
    Zhang J A, Drennan W M, Black P G, et al. 2009. Turbulence structure of the hurricane boundary layer between the outer rainbands. Journal of the Atmospheric Sciences, 66(8):2455-2467
    Zhang J A, Rogers R F, Nolan D S, et al. 2011. On the characteristic height scales of hurricane boundary layer. Monthly Weather Review, 139:2523-2535
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1252) PDF downloads(1477) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return