- Email: [email protected]
Statistical features of the oceanographic conditions in the Japan Sea
514
A. Physical Oceanography
88:3219 Honji, H., A. Kaneko and K. Kawatate, 1987. Serf-governing profiling system. Continent. Shelf Res., 7(10): 1257-1265. A self-governing profiling system with a depth capability of 100 m has been developed for measuring flow velocity, temperature, salinity, and turbidity of water in the near-bottom parts of shelf seas. A moving profiler unit holding the sensors for measuring the above parameters and depth and containing a data-recording device is made to move up and down, in cycles, along a mooring line. This motion is governed by a self-contained microprocessor. The system has been field-tested: examples of recorded data are presented. Res. Inst. for Appl. Mech., Kyushu Univ., Fukuoka 816, Japan. 88:3220 Klimok, V.I., V.P. Kochergin and H. Fridrikh, 1986. Numerical simulation of the seasonal variability of t h e ocean. Izv. A tmos. Ocean Phys. (a translation of Fiz. Atmos. Okeana), 22(9):728-733. Siberian Dept., Computer Center, Acad. of Sci., USSR. 88:3221 Niiler, P.P., R.E. Davis and H.J. White, 1987. Water-following characteristics of a mixed layer drifter. Deep-Sea Res., 34(11A):1867-1881. A design for an ARGOS-tracked drifter configured so as to minimize surface wave effects, and measurements of its water-following characteristics in the California Current system in July 1985 at 15 m nominal depth in a small range of wind and wave conditions are presented. An average of 5 out of 6 possible ARGOS positions were obtained daily. Recovery and inspection of one drifter both 4 and 8 months after deployment revealed the conditions of the mechanical components to be excellent. Scripps Inst. of Oceanogr., La Jolla, CA 92093, USA. 88:3222 Wunsch, Carl, 1987. Using transient tracers: the regularization problem. Tellus, 39B(5):477-492. The use of tracers, transient or otherwise, requires solution of the advection/diffusion equation either upstream, or backward in time, or both, a situation notorious for its instability because diffusive processes progressively destroy information in the 'forward' direction. An example in simple finite difference form for one space dimension and time is considered. The problem is run 'backward,' but regularized by solving it through linear programming. Linear programming also has several advantages for stable and unstable forward problems, and the inverse problem: knowledge of the form of the
OLR (1988) 35 (6)
answer is easily used; data uncertainty is accommodated; positivity constraints on concentrations are implicit; sparse system software is available; questions of best observational strategy are addressed by the dual solution; and strong instabilities of the inverse and backward problems are suppressed. Center for Meteorol. and Phys. Oceanogr., Dept. of Earth, Atmos. and Planetary Sci., MIT, Cambridge, MA 02139, USA.
A40. Area studies, surveys 88:3223 Arias, E., J.M. Sousa and M. Delgado, 1987. Hydrography off the coast of Barcelona (western Mediterranean) (September 1982 to August 1983). Investigacirn pesq., Barcelona, 51 (1) :39-65. (In Spanish, English abstract.) Inst. de Ciencias del Mar., Paseo Nacional, s/n. 08003 Barcelona, Spain. 88:3224 Hainbucher, Dagmar, Thomas Pohlmann and Jan Backhaus, 1987. Transport of conservative passive tracers in the North Sea: first results of a circulation and transport model. Continent. Shelf Res., 7(10): 1161-1179. A vertically integrated time-dependent flow field derived from the daily output of a three-dimensional baroclinic circulation model was used in the transport model. The simulation period covers 1969 to 1982. Calculations were carried out to get estimates of low-frequency flow and resulting dispersion of matter within the sea. Point sources are assumed which release tracers continuously with a constant rate, hence variability of the flow field can be visualized by the temporal and spatial fate of the released tracer ensemble. Model results are displayed in three different ways to provide a comprehensive description of the complex space-time character of the system. Inst. fur Meeresk. der Univ. Hamburg, Troplowitz Str. 7, 2000 Hamburg 54, FRG. 88:3225 Minami, Hideto, Yuichi Hashimoto, Yasushi Konishi and Hideshi Daimon, 1987. Statistical features of the oceanographic conditions in the Japan Sea. Umi to Sora, 62(4):163-176. (In Japanese, English abstract.) Kobe Mar. Observ., Kobe, Japan.
A. Physical Oceanography
88:3219 Honji, H., A. Kaneko and K. Kawatate, 1987. Serf-governing profiling system. Continent. Shelf Res., 7(10): 1257-1265. A self-governing profiling system with a depth capability of 100 m has been developed for measuring flow velocity, temperature, salinity, and turbidity of water in the near-bottom parts of shelf seas. A moving profiler unit holding the sensors for measuring the above parameters and depth and containing a data-recording device is made to move up and down, in cycles, along a mooring line. This motion is governed by a self-contained microprocessor. The system has been field-tested: examples of recorded data are presented. Res. Inst. for Appl. Mech., Kyushu Univ., Fukuoka 816, Japan. 88:3220 Klimok, V.I., V.P. Kochergin and H. Fridrikh, 1986. Numerical simulation of the seasonal variability of t h e ocean. Izv. A tmos. Ocean Phys. (a translation of Fiz. Atmos. Okeana), 22(9):728-733. Siberian Dept., Computer Center, Acad. of Sci., USSR. 88:3221 Niiler, P.P., R.E. Davis and H.J. White, 1987. Water-following characteristics of a mixed layer drifter. Deep-Sea Res., 34(11A):1867-1881. A design for an ARGOS-tracked drifter configured so as to minimize surface wave effects, and measurements of its water-following characteristics in the California Current system in July 1985 at 15 m nominal depth in a small range of wind and wave conditions are presented. An average of 5 out of 6 possible ARGOS positions were obtained daily. Recovery and inspection of one drifter both 4 and 8 months after deployment revealed the conditions of the mechanical components to be excellent. Scripps Inst. of Oceanogr., La Jolla, CA 92093, USA. 88:3222 Wunsch, Carl, 1987. Using transient tracers: the regularization problem. Tellus, 39B(5):477-492. The use of tracers, transient or otherwise, requires solution of the advection/diffusion equation either upstream, or backward in time, or both, a situation notorious for its instability because diffusive processes progressively destroy information in the 'forward' direction. An example in simple finite difference form for one space dimension and time is considered. The problem is run 'backward,' but regularized by solving it through linear programming. Linear programming also has several advantages for stable and unstable forward problems, and the inverse problem: knowledge of the form of the
OLR (1988) 35 (6)
answer is easily used; data uncertainty is accommodated; positivity constraints on concentrations are implicit; sparse system software is available; questions of best observational strategy are addressed by the dual solution; and strong instabilities of the inverse and backward problems are suppressed. Center for Meteorol. and Phys. Oceanogr., Dept. of Earth, Atmos. and Planetary Sci., MIT, Cambridge, MA 02139, USA.
A40. Area studies, surveys 88:3223 Arias, E., J.M. Sousa and M. Delgado, 1987. Hydrography off the coast of Barcelona (western Mediterranean) (September 1982 to August 1983). Investigacirn pesq., Barcelona, 51 (1) :39-65. (In Spanish, English abstract.) Inst. de Ciencias del Mar., Paseo Nacional, s/n. 08003 Barcelona, Spain. 88:3224 Hainbucher, Dagmar, Thomas Pohlmann and Jan Backhaus, 1987. Transport of conservative passive tracers in the North Sea: first results of a circulation and transport model. Continent. Shelf Res., 7(10): 1161-1179. A vertically integrated time-dependent flow field derived from the daily output of a three-dimensional baroclinic circulation model was used in the transport model. The simulation period covers 1969 to 1982. Calculations were carried out to get estimates of low-frequency flow and resulting dispersion of matter within the sea. Point sources are assumed which release tracers continuously with a constant rate, hence variability of the flow field can be visualized by the temporal and spatial fate of the released tracer ensemble. Model results are displayed in three different ways to provide a comprehensive description of the complex space-time character of the system. Inst. fur Meeresk. der Univ. Hamburg, Troplowitz Str. 7, 2000 Hamburg 54, FRG. 88:3225 Minami, Hideto, Yuichi Hashimoto, Yasushi Konishi and Hideshi Daimon, 1987. Statistical features of the oceanographic conditions in the Japan Sea. Umi to Sora, 62(4):163-176. (In Japanese, English abstract.) Kobe Mar. Observ., Kobe, Japan.