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Influence of discharge from the Rhone on the structure of suspended particulate matter in the Gulf of Lion [France]
OLR (1986)33 (3)
C. Chemical Oceanography
226Ra. Since the source of these surpluses is nearbottom shelf or slope water, and since the half-life of 222Rn is only 3.8 days, such surpluses are indicative of rapid offshore advective and/or mixing processes. Concentrations of 226Ra exhibit a small but measurable increase when moving from the Sargasso Sea, through the slope water, and up onto the shelf. Dept. of Oceanogr., Texas A&M Univ., College Station, TX 77843, USA.
C140. Nutrients 86:1513 Hansen, H.P., 1984. ~ significance of discrete Baltic nutrient samples disemsed on the basis of continuous measurements. Dt. hydrogr. Z , 37(6): 245-258. Data obtained by continuous measurements illustrate ranges and temporal and spatial scales of some chemical and physical variables in the Baltic Sea. The significance of discrete samples representing mean local hydrographic conditions is discussed. A procedure is proposed to eliminate random variabilities of chemical parameters caused by small and medium scale physical processes, and to increase the comparability of hydrographic data from given areas of the Baltic. Inst. fur Meeresk. and der Univ. Kiel, Dusternbrooker Weg 20, 2300 Kiel 1, FRG.
86:1514 Kawase, M. and J.L. Sarmiento, 1985. Nutrients in the ltthmic thermodi~. J. geophys. Res., 90(C5):8961-8979. Nutrient distributions reflect primarily the sources at the northern and southern outcrops of the isopycnal surfaces, in-situ regeneration due to decomposition of sinking organic materials, and interior physical processes. However, silica exhibits behavior that cannot be explained by in-situ regeneration. A simple phenomenological model suggests that crossisopycnal advection and mixing in the equatorial region may play an important role in nutrient dynamics. Data should aid in constraining models of physical and biogeochemical processes. GFD Program, Princeton Univ., N J, USA.
219
abstract.) Akad. der Wissenschaften, Inst. fur Meeresk., DDR-2530 Rostock-Warnemunde, Seestrasse 15, DRG. 86:1516 Komar, P.D. and G.L. Taghon, 1985. Analyses of the settling velocities of fecal pellets from the subtidei polychaete Amph/c'te/s scllphob/'anch/ata. J. mar. Res., 43(3):605-614. Coll. of Oceanogr., Oregon State Univ., Corvallis, OR 97331, USA. 86:1517 Lampitt, R.S., 1985. Evidence for the seasonal deposition of detritus to the deep-sea floor [Porcupine Bight, NE Atlantic] and its subsequent resuspen~on. Deep-Sea Res., 32(8):885-897. Changes in the benthic environment due to rapid deposition of phytodetritns occur down to 4000 m. Photographs taken every 8 h showed dramatic changes in the appearance of the seabed between mid-June and mid-July. Sinking rates were probably between 100 and 150 m d-t; individual aggregates up to 12 mm diameter arrived between frames at all depths and up to 50 mm at 4000 m. Once on the seabed, the detrital carpet moves over the sediment surface due to bottom currents; when currents exceed about 7 cm s-l (at 1 m altitude), the material is resuspended. The tidal nature of the current gives a strong tidal component to the variation in suspended particles near the seabed. Inst. of Oceanogr. Sci. (NERC), Wormley, Godalming, Surrey GU8 5UB, UK.
86:1518 Loeillet, Christian and Michel Leveau, 1985. Influence of d i e d ~ from the l~,hone on t~e structure
of smlmded pmicm~te nutty" In the GuU of Lion ffrmce]. C. r. A c ~ . Sci, Par~, (S~r. II)301(6):397-402. (In French, English abstract.) Centre d'Oceanol, de Marseille, Case No. 901, 13288 Marseille Cedex 09, France.
C180.
Geochemistry,
biogeochemistry
(see also D-SUBMARINE GEOLOGY AND GEOPHYSICS) 86:1519 Abbott, G.D., C.A. Lewis and J.R. Maxwell, 1985.
C150. Particulate matter 86:1515 Georgi, Frank, 1985. [Seston studies in the [}arm-
~
neddea systm and the Eahic Sen.i
Beitr. Meeresk, 52:35-48. (In German, English
The kinetks of spedflc eqpmk remiom In the zone of catagenests. Phil. (A)315(1531): 107-122.
Trans. R. Soc~
Gas chromatography-mass spectrometry analysis of the aromatization of a C27 C-ring aromatic steroid and isomerization at the chiral centers of an
C. Chemical Oceanography
226Ra. Since the source of these surpluses is nearbottom shelf or slope water, and since the half-life of 222Rn is only 3.8 days, such surpluses are indicative of rapid offshore advective and/or mixing processes. Concentrations of 226Ra exhibit a small but measurable increase when moving from the Sargasso Sea, through the slope water, and up onto the shelf. Dept. of Oceanogr., Texas A&M Univ., College Station, TX 77843, USA.
C140. Nutrients 86:1513 Hansen, H.P., 1984. ~ significance of discrete Baltic nutrient samples disemsed on the basis of continuous measurements. Dt. hydrogr. Z , 37(6): 245-258. Data obtained by continuous measurements illustrate ranges and temporal and spatial scales of some chemical and physical variables in the Baltic Sea. The significance of discrete samples representing mean local hydrographic conditions is discussed. A procedure is proposed to eliminate random variabilities of chemical parameters caused by small and medium scale physical processes, and to increase the comparability of hydrographic data from given areas of the Baltic. Inst. fur Meeresk. and der Univ. Kiel, Dusternbrooker Weg 20, 2300 Kiel 1, FRG.
86:1514 Kawase, M. and J.L. Sarmiento, 1985. Nutrients in the ltthmic thermodi~. J. geophys. Res., 90(C5):8961-8979. Nutrient distributions reflect primarily the sources at the northern and southern outcrops of the isopycnal surfaces, in-situ regeneration due to decomposition of sinking organic materials, and interior physical processes. However, silica exhibits behavior that cannot be explained by in-situ regeneration. A simple phenomenological model suggests that crossisopycnal advection and mixing in the equatorial region may play an important role in nutrient dynamics. Data should aid in constraining models of physical and biogeochemical processes. GFD Program, Princeton Univ., N J, USA.
219
abstract.) Akad. der Wissenschaften, Inst. fur Meeresk., DDR-2530 Rostock-Warnemunde, Seestrasse 15, DRG. 86:1516 Komar, P.D. and G.L. Taghon, 1985. Analyses of the settling velocities of fecal pellets from the subtidei polychaete Amph/c'te/s scllphob/'anch/ata. J. mar. Res., 43(3):605-614. Coll. of Oceanogr., Oregon State Univ., Corvallis, OR 97331, USA. 86:1517 Lampitt, R.S., 1985. Evidence for the seasonal deposition of detritus to the deep-sea floor [Porcupine Bight, NE Atlantic] and its subsequent resuspen~on. Deep-Sea Res., 32(8):885-897. Changes in the benthic environment due to rapid deposition of phytodetritns occur down to 4000 m. Photographs taken every 8 h showed dramatic changes in the appearance of the seabed between mid-June and mid-July. Sinking rates were probably between 100 and 150 m d-t; individual aggregates up to 12 mm diameter arrived between frames at all depths and up to 50 mm at 4000 m. Once on the seabed, the detrital carpet moves over the sediment surface due to bottom currents; when currents exceed about 7 cm s-l (at 1 m altitude), the material is resuspended. The tidal nature of the current gives a strong tidal component to the variation in suspended particles near the seabed. Inst. of Oceanogr. Sci. (NERC), Wormley, Godalming, Surrey GU8 5UB, UK.
86:1518 Loeillet, Christian and Michel Leveau, 1985. Influence of d i e d ~ from the l~,hone on t~e structure
of smlmded pmicm~te nutty" In the GuU of Lion ffrmce]. C. r. A c ~ . Sci, Par~, (S~r. II)301(6):397-402. (In French, English abstract.) Centre d'Oceanol, de Marseille, Case No. 901, 13288 Marseille Cedex 09, France.
C180.
Geochemistry,
biogeochemistry
(see also D-SUBMARINE GEOLOGY AND GEOPHYSICS) 86:1519 Abbott, G.D., C.A. Lewis and J.R. Maxwell, 1985.
C150. Particulate matter 86:1515 Georgi, Frank, 1985. [Seston studies in the [}arm-
~
neddea systm and the Eahic Sen.i
Beitr. Meeresk, 52:35-48. (In German, English
The kinetks of spedflc eqpmk remiom In the zone of catagenests. Phil. (A)315(1531): 107-122.
Trans. R. Soc~
Gas chromatography-mass spectrometry analysis of the aromatization of a C27 C-ring aromatic steroid and isomerization at the chiral centers of an