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The 1997 Pacific typhoon season has no official bounds; it ran year-round in 1997, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November.〔Gary Padgett. (May 2003 Tropical Cyclone Summary. ) Retrieved on 2006-08-26.〕 These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean. This was the most active tropical cyclone season ever recorded, with a record ten Category 5 storms forming and with an ACE of 594.11. The scope of this article is limited to the Pacific Ocean, north of the equator and west of the International Date Line. Storms that form east of the Date Line and north of the equator are called hurricanes; see 1997 Pacific hurricane season. Tropical Storms formed in the entire west Pacific basin were assigned a name by the Joint Typhoon Warning Center. Tropical depressions in this basin have the "W" suffix added to their number. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two names. ==Seasonal summary== ImageSize = width:995 height:230 PlotArea = top:10 bottom:80 right:20 left:20 Legend = columns:3 left:30 top:58 columnwidth:270 AlignBars = early DateFormat = dd/mm/yyyy Period = from:01/01/1997 till:31/12/1997 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/01/1997 Colors = id:canvas value:gray(0.88) id:GP value:red id:TD value:rgb(0.38,0.73,1) legend:Tropical_Depression_=_<39_mph_(0-62_km/h) id:TS value:rgb(0,0.98,0.96) legend:Tropical_Storm_=_39-73_mph_(63-117 km/h) id:ST value:rgb(0.80,1,1) legend:Severe_Tropical_Storm_=_89-117_km/h_(55-73_mph) id:TY value:rgb(0.99,0.69,0.6) legend:Typhoon_=_>118_km/h_(>74_mph) Backgroundcolors = canvas:canvas BarData = barset:Hurricane bar:Month PlotData= barset:Hurricane width:11 align:left fontsize:S shift:(4,-4) anchor:till from:19/01/1997 till:27/01/1997 color:TD text:"Hannah" from:11/04/1997 till:23/04/1997 color:TY text:"Isa" from:22/04/1997 till:26/04/1997 color:TS text:"Jimmy" from:06/05/1997 till:10/05/1997 color:TS text:"Kelly" from:26/05/1997 till:30/05/1997 color:TS text:"Levi" from:27/05/1997 till:01/06/1997 color:TY text:"Marie" from:05/06/1997 till:14/06/1997 color:TY text:"Nestor" from:14/06/1997 till:20/06/1997 color:TY text:"Opal" from:22/06/1997 till:28/06/1997 color:TY text:"Peter" barset:break from:18/07/1997 till:31/07/1997 color:TY text:"Rosie" from:20/07/1997 till:02/08/1997 color:TS text:"Scott" from:29/07/1997 till:09/08/1997 color:TY text:"Tina" from:30/07/1997 till:04/08/1997 color:ST text:"Victor" from:06/08/1997 till:20/08/1997 color:TY text:"Winnie" from:16/08/1997 till:23/08/1997 color:ST text:"Yule" from:17/08/1997 till:19/08/1997 color:TD text:"16W" from:20/08/1997 till:24/08/1997 color:ST text:"Zita" from:21/08/1997 till:31/08/1997 color:TY text:"Amber" barset:break from:26/08/1997 till:04/09/1997 color:TY text:"Bing" from:27/08/1997 till:30/08/1997 color:TS text:"Cass" from:03/09/1997 till:16/09/1997 color:TY text:"Oliwa" from:11/09/1997 till:20/09/1997 color:TY text:"David" from:21/09/1997 till:23/09/1997 color:TD text:"Ella" from:21/09/1997 till:27/09/1997 color:ST text:"Fritz" from:23/09/1997 till:30/09/1997 color:TY text:"Ginger" from:02/10/1997 till:05/10/1997 color:TS text:"Hank" from:02/10/1997 till:07/10/1997 color:TD text:"26W" barset:break from:13/10/1997 till:25/10/1997 color:TY text:"Ivan" from:13/10/1997 till:24/10/1997 color:TY text:"Joan" from:26/10/1997 till:08/11/1997 color:TY text:"Keith" from:31/10/1997 till:04/11/1997 color:ST text:"Linda" from:09/11/1997 till:16/11/1997 color:TS text:"Mort" from:06/12/1997 till:23/12/1997 color:TY text:"Paka" bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/01/1997 till:01/02/1997 text:January from:01/02/1997 till:01/03/1997 text:February from:01/03/1997 till:01/04/1997 text:March from:01/04/1997 till:01/05/1997 text:April from:01/05/1997 till:01/06/1997 text:May from:01/06/1997 till:01/07/1997 text:June from:01/07/1997 till:01/08/1997 text:July from:01/08/1997 till:01/09/1997 text:August from:01/09/1997 till:01/10/1997 text:September from:01/10/1997 till:01/11/1997 text:October from:01/11/1997 till:01/12/1997 text:November from:01/12/1997 till:31/12/1997 text:December The season was unusual in the number of super typhoons that occurred in the basin, with eleven typhoons reaching winds of at least 135 knots. They were Isa, Nestor, Rosie, Winnie, Bing, Oliwa (from Central Pacific), Ginger, Ivan, Joan, Keith, and Paka (from Central Pacific). This was due to the strong El Niño of 1997-1998, which contributed to the record amounts of not only super typhoons but also tropical storms in the Western and Eastern Pacific. Fortunately, most of the stronger systems remained at sea. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1997 Pacific typhoon season」の詳細全文を読む スポンサード リンク
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