Detection of hot event in the equatorial Indo-Pacific warm pool using advanced satellite sea surface temperature, solar radiation, and wind speed
Qin, H; Kawamura, H; Kawai, Y
2007
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN0148-0227
卷号112期号:C7页码:#NAME
摘要Using advance satellite-derived sea surface temperature (SST), solar radiation and wind speed products, we investigate hot events (HEs) associated with very high SST of around 30 degrees C. Amplitude of the SST diurnal variation (DSST) is obtained by an empirical formula with the downward surface shortwave radiation (DSSR) and the wind speed. The HE is defined as a connected region with SST > the time-dependent SST threshold of about 30 degrees C having a minimum areal size greater than 3 x 10(6) km(2) and lasting for a period longer than 10 days. Thirty-one hot events were detected from 1993 to 2003 in and around the equatorial Indo-Pacific warm pool. The HE precursor is increase of an area with SST > the time-dependent SST threshold, and the HE starts when the areal size exceeds the areal threshold. It keeps the very high SST for a while, and then its SST decreases with decrease of the HE area toward its ending phase. The HE area and the high-DSST area correspond with each other on timescales of daily and the whole one event period. In the HE period, a clear-sky and low-wind condition becomes the reason for large DSST appearance. Through statistics of the detected 31 HEs, it is indicated that the mean HE period, the mean areal size, and the means of the regional HE areal averaged SST are 24.2 days, 1.57 x 10(7) km(2), and 0.25 degrees C above the time-dependent SST threshold, respectively. The HE area shifts with season though they stay within/around the SST contour of 28 degrees C in the Indo-Pacific oceans.
部门归属Tohoku Univ, Grad Sch Sci, Ctr Atmospher & Ocean Studies, Sendai, Miyagi 9808578, Japan; Japan Agcy Marine Earth Sci & technol, Inst Observ Res Global Change, Yokosuka, Kanagawa, Japan
学科领域Oceanography
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收录类别sci
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/8445
专题海洋科技动态信息-印太暖池系统研究
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Qin, H,Kawamura, H,Kawai, Y. Detection of hot event in the equatorial Indo-Pacific warm pool using advanced satellite sea surface temperature, solar radiation, and wind speed[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2007,112(C7):#NAME.
APA Qin, H,Kawamura, H,&Kawai, Y.(2007).Detection of hot event in the equatorial Indo-Pacific warm pool using advanced satellite sea surface temperature, solar radiation, and wind speed.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,112(C7),#NAME.
MLA Qin, H,et al."Detection of hot event in the equatorial Indo-Pacific warm pool using advanced satellite sea surface temperature, solar radiation, and wind speed".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 112.C7(2007):#NAME.
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