oceanic high
3.During the summer, an oceanic flow from the south-west to the north-east brings the warm, high-salinity water of the Hainan Current into Hong Kong waters.
4.For instance, what is the reason for the difference between the estimations of the oceanic tidal terms of EOP from real data reduction? How could the reliable time series of high frequency variation of EOP be solved from observation? What will be the effect of the modeling deficiency of precession and nutation on the solving of HF variation of EOP?
6.The southern Dabie collisional complex from the Jiangling area, eastern Dabie Mountains, Anhui Province comprises eclogites, mica schists leptynites and gneisses. These three rock series show different metamorphic evolutional stages and P T paths: the eclogites have 5 metamorphic stages where the early stages belong to ultra high and high pressure type and the late stage to medium pressure type, and were probably related to the subduction of a palaeo oceanic crust;
7.The higher SST in the eastern ocean of the Philippine and lower SST in the eastern area of the central equator Pacific will lead to a weaker western Pacific high in the lower layer, deeper oceanic trough of the central and eastern Pacific in higher layer, stronger westerly in tropical Indian Ocean, stronger Walker circulation in the region of the Indian-Pacific Ocean.
8.The variations of sea ice in the Arctic Ocean are simulated by using a improved high resolution Hibler dynamic-thermodynamic sea ice model during 1979-1998. The model is driven by surface atmospheric and oceanic forcing consists of geostrophic winds ,surface air temperature, specific humidity, and longwave and shortwave radiative fluxes provided by International Arctic Buoy Program(IABP).
9.The rock samples collected by R/V "Dayang No.1" were used to make researches on the petrochemical and mineralogical features, and it is shown from the research results that these rocks are high-alumina and low-potassium oceanic tholeiite or tholeiite series and calc-alkaline basalt, which provides scientific basis for further clarifying the hydrothermal activity petrological conditions and the hydrothermal material sources in the Mariana Trough area.
10.Alkali-rich porphyry is relatively enriched in large-ion lithophile elements(K,Rb and Ba)and de - pleted in high-field strength elements(Nb,Ta,Ti and P)with a wider range of Nb/Y ratios and shows strong REE fractionation but no pronounced negative Eu anomaly — all these suggest that the magma source region un - derwent metasomatism and concentration of ancient subducted oceanic slab fluids and was injected by small streams of melts from the asthenosphere.
