European Stars And Stripes (Newspaper) - September 9, 1980, Darmstadt, Hesse Magazine tracking internal Waves ill fated Thresher at Charleston s.c., in 1961. By Walter Sullivan new York times underwater Waves thai could drop submarine 300 feet then lift it bad again Irac been detected racing one after another across the Sulu sea South of the Philippines. H was proposal recently that the phenomenon suddenly taking a submarine below its Safe operating depth could account for some of the past disappearances of Era it. A few he Meta lifter the 1963 pm of it nuclear submarine Timber in the Gulf of mater with its Cut of 129, Coho frus o d. India fonder director of use Wood Hok injun upon in suggested that i Latt Nul Waie con mind Efti it Ora related Cuba of Wale it nil to could bite accounted for Etc Desuler. Nevertheless the significance of Waves for under sea navigation offshore drilling operations end he be Havior of Marine animals Hai Only recently been recognized White the wave As they Pau cause great turbulence on tie surface the Esler level does not fall or Rise . The maximum Dawa and up motion in the Sulu sea was at a depth of 650 was Ere apparently produced As tidal current plunge into deep water from narrow passage Between Danda flanking that Tea. Something an to an infernal Ware i men a toy in to in Novelty shops in which two fluids differing in density and color Are contained in a Glass tank filled to capacity. When the tank it rocked a wave travels on the surface of the lower denier fluid. In the Osetin Inch wow likewise Jeem to occur be tween Layen of varying density. Tose in the Sulu sea were recorded on a crude Rotthe research tap Oceano Nipher that ended in Seattle at the end of july. The ship also conducted to chinese Aroe Icib studies of the Vail discharge of nutrient Rich sediment from the into the Eart China sea. According la or. John r. Aptly of the Pacific Marine environmental Laboratory in Seattle who was uie Pron apal investigator for the Sulu sea Tudie. The Jouce of Siw a is a ced to lie Siutu passage which Unta to to Tea with the Ndebe sea the vbo"l3 and of fare operated by he Nat Wool oceanic by Atmos Henc . Khotan in enl was had been town Tor Yean. To Eula pm of one carom the mrace we often dismissed �r3r rip in i of a drawl to Tuvou Scance for oceanic operation when in Euon study is Rutste tie Andaman St Vest of tie malay Pinin of w to Crew b the Jomal be a. The a Rucj Ooi Ooi corded it that Ody and la an Eail a one by sets. Research ship Pion eco were Almott at Jcu . Now been identified in a number of Imago recorded Over the Andaman sea by landsat spacecraft. Ape also found them in Imago obtained Over the Sulu sea by a defense meteorological satellite. Shipboard Oterra blobs in the Sulu and Andaman setts hire Hotra that the area a Cliftn warm b As smooth As a Rupord. The first sign of an approach ing we according to Apel. Is we the horizon face Gie to a but of whitecaps and turn lace then weep past it ship. It ii these bands of turbulence a half mile wide rather than the internal Waves hidden beneath them that show of in satellite photographs. They May be More than 115 Milts Long. Act wave moves at five Miles an hour. A picket consists of two to ten Waves paying about an hour apart usually with diminishing intensity. They recur every 12 1/2 hours indicating � link to the daily tidal Cycle and Are most pronounced when tides Are at their maximum it new Moon and full Moon. Apel pointed out in an incur View that tides on opposite sides of the Siutu passage Are four noun out of phase with each other. It a when the tide is exceptionally High in the celebes sea and very Low in the Sulu sea that writer pours Over a shallow area or Sill in the passage creating s watery counterpart of the tee Waves that form ranks of Clouds a own ind from mountains water lowing Over the Sill descend then rises again a succession of Lima. Tannin g a series of interns Waves. The Andaman set study was initiated when it was feared that wares might affect Euon drilling being conducted there in water 2,000 to 3,600 feel deep. Tie drillers bad noticed the surface turbulence. The study a described in science by or. Alfred r. Osborne of the Exxon production research co of hous ton and Terrence l. Burch of pm. & g. Environmental consultants of Waltham Mao. With a variety of devices they recorded not Only the Waves but also the response to them of the Drill ship discoverer 334 and the Riser inking it to the Tea floor. The ship moored with e spread of eight anchors Tugg Deil those on one Side then those on the other. It spun 90 degrees and was moved More than 100 feet off in Posi Tion. Burch suggested in an interview that Waves could account for past submarine losses a View echoed by Apel. He said drilling operations were affected but withheld detail As being Wava seem to originate at Levera Points around die Andaman sea. When they converge they Cross one another without being greatly altered in Contrail to con verging surface Waves. In both tiie Andaman and Sulu studies water move ment As Well Ai temperature and density layers were recorded by current Meteri placed at various Depths and by devices lowered through the water Echo lob Munei from tit showed that a layer of Tarim life Cental but shred feet Down Muk then Rose with the put log of Tufa wait. Manifestations of internal Waves have been reported from the Indian Ocean the Bay of Bengal the South China sea and the area Between Cape cod and Bermuda. To 197s, and " of found evidence for o be a oily Crossaig the in different Dinc Taka. Such wave a tuesday september 9, 1980 the stars and stripes
