[Updated on Apr. 18] Integration of CiNii Articles into CiNii Research

The Diurnal Cycle of Clouds in Tropical Cyclones over the Western North Pacific Basin

DOI Web Site 20 References Open Access
  • Fukuda Kohei
    Department of Earth Science, Graduate School of Science and Engineering, University of Toyama
  • Yasunaga Kazuaki
    Department of Earth Science, Graduate School of Science and Engineering, University of Toyama
  • Oyama Ryo
    Forecast Division, Forecast Department, Japan Meteorological Agency (JMA) Meteorological Research Institute (MRI)
  • Wada Akiyoshi
    Meteorological Research Institute (MRI)
  • Hamada Atsushi
    Department of Earth Science, Graduate School of Science and Engineering, University of Toyama
  • Fudeyasu Hironori
    Yokohama National University

Abstract

<p>This study examined the diurnal cycles of brightness temperature (TB) and upper-level horizontal winds associated with tropical cyclones (TCs) over the western North Pacific basin, making use of data retrieved from geostationary-satellite (Himawari-8) observations that exhibited unprecedented temporal and spatial resolutions. The results of a spectral analysis revealed that diurnal cycles prevail in TB variations over the outer regions of TCs (300-500 km from the storm center). The dominance of the diurnal cycle was also found in variations in the radial wind (Vr) in intensive TCs, although there was no dominant cycle in tangential wind variation. In addition, coherence spectra demonstrated that the diurnal cycles of TB and Vr are significantly coupled in intensive TCs. The migration speed of TB and Vr anomalies exceeded the time-mean Vr, and it was speculated that diurnal cycle signals propagate (i.e., are not advected) toward the outer regions of TCs.</p>

Journal

  • SOLA

    SOLA 16 (0), 109-114, 2020

    Meteorological Society of Japan

Citations (0)*help

See more

References(20)*help

See more

Related Articles

See more

Related Data

See more

Related Books

See more

Related Dissertations

See more

Related Projects

See more

Related Products

See more

Details

Report a problem

Back to top