Acid rain: China, United States, and a remote area

Acid rain: China, United States, and a remote area

1034 OLR(1987)34(12) interactions with the zonal mean flow. Baroclinic decay of stratospheric wave energy is also observed, resulting from equatorwa...

72KB Sizes 0 Downloads 110 Views

1034

OLR(1987)34(12)

interactions with the zonal mean flow. Baroclinic decay of stratospheric wave energy is also observed, resulting from equatorward heat flux in the lower stratosphere. Good agreement in energy balances discounts in-situ instability in the stratosphere as a source of wave activity. An average or composite over several clearly propagating cases reveals wave structure and evolution, and suggests a source of planetary wave activity in the upper troposphere. NCAR, Boulder, CO 80307, USA.

in China generally has higher concentrations of sulfate, ammonium, and calcium. Wet deposition rates of sulfur in China are 7 to 130 times higher than those in a remote area in the Southern Hemisphere. Significant ecological changes have occurred in ecosystems that have acid deposition rates substantially less than those currently existing in China. ©1987 by AAAS. Dept. of Environ. Sci., Univ. of Virginia, Charlottesville, VA 22903, USA.

B440. Books, collections (general) B350. Pollution

(see also C210--Chemical pollution, E300-Effects of pollution, F 2 5 0 Waste disposal)

87:6778 Galloway, J.N., Dianwu Zhao, Jiling Xiong and G.E. Likens, 1987. Add rain: China, United States, and a renlote area. Science, 236(4808): 1559-1562. Compared to the eastern United States, precipitation

87:6779 Beasley, W.H. et al., 1987. Papers from U.S. Natl~al Report to IUGG [intematiomd Union of Geodesy and Geophysics] 1983-1996. Revs Geophys., 25(3):722pp; 38 papers. These quadrennial reports, all chiefly concerning U.S. research efforts, progress and plans, are organized under four headings: atmospheric sciences, aeronomy, magnetospheres, and cosmic/solar physics. (fcs)

C. CHEMICAL OCEANOGRAPHY C10. Apparatus and methods 87:6780 Brflgmarm, Lutz, Ewald Geyer and Rainer Kay, 1987. A new Teflon sampler for trace metal studies in seawaterm'WATES.' Mar. Chem., 21(1):91-99. A 2.3-L sampler is described which passes the atmosphere/water interface in a closed position, so that the enclosed water contacts only easily cleaned PTFE. This seems to minimize contamination risks for investigations on trace metals, in deep ocean waters where it is often several hours before samples can be drained into pre-cleaned bottles. Five trace metal profiles determined in 1983 at stations in the Bay of Biscay are tabulated and preliminary interpretations made to demonstrate the suitability of the new sampling device. Akad. der Wissenschaften der DDR, Inst. fur Meereskunde, DDR-2530 Rostock Warnemunde, DRG.

87:6781 Frei, R.W. (guest editor), 1987. Fourth symposium on liquid chnm~togral~y--mass spectrometry and mass spectrometry-mass spectrometry, Montreux, October 22-24, 1986. Special issue. J. Chromatog., 394(1):257pp; 24 papers. 87:6782 Fukushi, Keiichi and Kazuo Hiiro, 1987. Determimtion of sulphide in seawater by capillary ~ . J. Chromatog., 393(3):433-440. A new analytical procedure was developed using capillary isotachophoresis and a tubular microporous polytetrafluoroethylene membrane for preliminary enrichment. Hydrogen sulphide generated by adding sulphuric acid to the seawater samples was allowed to permeate through the membrane and dissolved in sodium hydroxide solution. Barium cation-exchange resin was then added to the sodium hydroxide solution to remove the dissolved CO 2. A