Diurnal variations of sea surface temperature over the wide-ranging ocean using VISSR on board GMS

Shuichi Tanahashi, Hiroshi Kawamura, Tomoyuki Takahashi, Hiroyuki Yusa

研究成果: Article査読

28 被引用数 (Scopus)

抄録

Sea surface temperature (SST) diurnal warming caused by insolation is investigated using wide-ranging hourly insolation and SST derived from the Geostationary Meteorological Satellite/Visible and Infrared Spin Scan Radiometer (GMS/VISSR). Using SST diurnal variations (ΔSSTgms) derived from the hourly VISSR SSTs and insolation, and the wind velocity derived from the Advanced Earth Observing Satellite/NASA Scatterometer (ADEOS/NSCAT), it is verified that the SST warming occurs under conditions of high insolation and weak wind. To investigate the ΔSSTgms, two simple models are applied. One SST diurnal warming estimation model (Model A) is developed with reference to Price et al. [1986, 1987] introducing the latitudinal heat loss estimated from climatic values. Another model (Model B) was proposed by Webster et al. [1996]. Because SST diurnal warming is dependent on meteorological conditions, the areas of SST warming change from day to day. However, areas of weak wind and high insolation can be specified by large-scale atmospheric systems. Both distributions of the monthly averaged ΔSST model-A (SST diurnal warming estimated by Model A) and ΔSSTgms agree well with each other. Large SST diurnal warming has occurred at middle latitudes in the summer hemisphere and tropical regions near the land. Through this study, it is demonstrated that the combination of satellite observation and numerical models enables us to investigate the diurnal SST warming over the wide-ranging ocean.

本文言語English
ページ(範囲)9-1 - 9-15
ジャーナルJournal of Geophysical Research: Oceans
108
7
DOI
出版ステータスPublished - 2003 7月 15

ASJC Scopus subject areas

  • 地球化学および岩石学
  • 地球物理学
  • 地球惑星科学(その他)
  • 宇宙惑星科学
  • 大気科学
  • 天文学と天体物理学
  • 海洋学

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