最新刊期
期 11 ， 1976
- 摘要：This section is situated near the origin of the Kuroshio, and is the entrance for the Kuroshio frowing from the Pacific Ocean into the East China sea. Therefore, it is a key-place for monitoring the variation of the Kuroshio. In this paper, the monthly averaged hydrographical data published by Suda (1937- 1938) are used to study the velocity structure (i.e., the distribution of the velocity and the transport) and the seasonal variations of the Kuroshio. The results show that the seasonal variation of the transport has a semi-annual dominant period, and a sufficiently significant correlative relation(r= 95%) exists between the transport values of the Kuroshio in four seasons and the corresponding values of the wind-stress curl at the same latitude as the section over the middle of the North Pacific, that is, at the neighbourhood of the Hawaiian Islands. This empirical relation may be useful for the study of the tendency prediction of the Kuroshio.关键词：THE VELOCITY STRUCTURE;THE KUROSHIO;SEASONAL VARIATION
- 148
- |
- 69
- |
- 0
发布时间：2023-04-28 - 摘要：A practical procedure is proposed for the analysis of short period observations of tidal streams and tidal elevations using the electronic computers. The observational series to be analysed consists of several subseries. In general, the period of the subseries should be about a whole day, though the incomplete，fragmental or even individual records may also be used in the analysis. But as many (at least one) complete subseries as possible should be used so as to get reliable harmonie constants. The estimation of the errors of the harmonic constants can a1so be given if three or more complete subseries are available. In this paper, the formulas numbered (1) , (2) , ... are provided for the use of practical analysis and those labeled (a) , (b) , ... are given in the explanations. To take the radiational tide into account, the effect of the solar semidiurnal atmospheric pressure wave S2 (p) on ocean tides is discussed. The comparison between the horizontal pressure gradient of S2(p) and S2 component of horizontal tide-generating force gives an estimation that the radiational tide S2 can reduce the amplitude and delay the phase of the gravitational tide S2 to the extents of 1/30 and 5.6° respectively. To reject the observations with large deviations from the normal values, a criterion is suggested.
- 111
- |
- 66
- |
- 0
发布时间：2023-04-28 - 摘要：this paper discusses the circulation pattern within a rectangular uniform basin which communicating with the adjacent sea through an openning. Assume the north and south boundaries being sliding type, while the east and west boundaries (with the exception of the openning) being viscous type. The ,aim of this paper is to get a solution of Stockman's total transport equation with the fore mentioned boundary conditions. Because of the existence of a discontinuous point of the first kind on that boundary with an openning, we use Fourier method to obtain a solution in the series form for the whole basin. It is apparent from the solution that the circulation pattern within such a semi-closed basin is essentially determined by the wind stress curl on the basin and the velocity distribution at the openning. Finally，we apply the above result to the Bohai Sea, it is to be seen that the circulation pattern of the Bohai Sea calculated by this method is quite similar with the observed circulation pattern of the Bohai Sea so far as the general feature is concerned.关键词：circulation pattern;A SEMI-CLOSED BASIN
- 118
- |
- 79
- |
- 0
发布时间：2023-04-28 - 摘要：Iron in sea water of Jiaozhou Bay was investigated from June, 1964 to June, 1965 at intervals of a month at 8 stations. Water samples were filtered with No. 4 sintered glass filters (in the last month with 0.5μmembrane filters) and ‘active’ iron, total iron and particulate iron(in the last month) have been determined.
- 102
- |
- 64
- |
- 0
发布时间：2023-04-28 - 摘要：This paper describes the source identification of crude oil pollution by means of gas chromatography employing a flame ionization detector and a flame photometric sulfur detector, illustrates the normal paraffin carbon-number distribution curve and gets the (C21 + C22 ) / ( C29十C29) ratio for the identification. This procedure is applicable to source identification of crude oil pollution, as a part of marine pollution control, and is particularly useful to weathered crude oil.关键词：oil pollution;source identification
- 185
- |
- 62
- |
- 0
发布时间：2023-04-28 - 摘要：In present paper, a method was developed to simulate offshore conditions for screening steel materials for marine application. The device used was described. By using the device, the raise and low levels of sea water can be controlled automatically, and waves can be brought about with a simple wave-making machine installed in the cement tank. The experiments were carried out in the tank with flowing sea water. Thus, in a 3 m3 tank different marine corrosion environments such as atmospheric zone,splash zone,tidal zone and submerged zone can simultaneously be shown as offshore. In addition a brief account was given to the long scale hanging specimens, the separate hanging specimens， and the hanging specimens connected electrically.关键词：steel corrosion;marine application
- 197
- |
- 81
- |
- 0
发布时间：2023-04-28 - 摘要：The leaching rate is a critical factor for antifouling in harbour. The authors set up a series of methods for studying the leaching rate based on our own work; and studied, by using these methods, the properties of. several antifouling paints， some toxicological materials, and the relations between thier leaching rates and antifouling effects.关键词：TOXICOLOGICAL MATERIALS;ANTIFOULING
- 119
- |
- 58
- |
- 0
发布时间：2023-04-28 - 摘要：On the holocene marine accumulated plain of Bohai Gulf, there are two or more series of chenier ridges. Which have been proved to be relict coastlines of different historical times. Their ages were estimated by C-14 dating and archaeological method:the chenier ridge Ⅱ was formed 3100-3500 years B.P., and the chenier ridge Ⅰ was formed 2000 years B. P. The chenier ridge consists of molluscan shells and their fragments. The height of the chenier ridge is usually 2-3 m, because of wind action sometimes reaching 6-7 m. Its maximum thickness is 5 m. The width of the chenier ridge is typically 50- 200 m. In estuarine areas, its width is greater. The following are requisite conditions for the formation of chenier ridges: the beach and shallow are of clayey silt, with a stable slope of 1/100 within the limit of 100 m from the foot of the chenier riage, 1/300 within 100-300 m from its foot seaward, and 1/500-1/600 farther down.关键词：CHENIER RIDGES;BOHAI GULF
- 125
- |
- 72
- |
- 0
发布时间：2023-04-28 - 摘要：Coastal sand movement and geomorphological evolution in the Baishakou had been investigated in 1971-1974. Observation indicated that the relationship are different among direction of the wave and of sand movement and transport of the bar in the different zone of the beach. Directions of sand movement and transport of the bar depend on characteristic of the angle of the wave crest with the shore line, but it corresponds generally to direction of wave in other zone below the high tidal line. If condition of wave were identical， intensity of sand movement is different in the different zone of the submarine slope, therefore it may be divided into several zones of sand movement. Main factors affecting variation of slope of the beach are size of the sand which constitutes beach. Variations. of size of sand are affected by wave. Slope of the beach variates always periodically with variation of the wave, which we called "cycle of slope of the beach".关键词：sand movement;geomorphological evolution;Baishakou
- 197
- |
- 78
- |
- 0
发布时间：2023-04-28 - 摘要：The present paper deals with 13 species and 7 varieties of planktonic Coscinodiscus of the South China Sea. Of these one species. and a variety of Cosc. subtilis are regarded as new to science，4 species and 6 varieties are recorded for the first time from China.
- 135
- |
- 55
- |
- 0
发布时间：2023-04-28 - 摘要：The present artic1e dea1ing with the species of Chinese Arminidae (=P1europhyllidiadae) is based on materials collected in the past years from the littoral and sublittora1 zones along the China coast. Twenty species belonging to 3 genera and 4 subgenera are described. 8 species are new to science and 7 species are recorded for the first time from the China coast. Among these, 3 species, Armina(Armina) magna,A. (A.) semperi, Dermatobranchus (Pleuroleura) ornatus are recorded previously from the Indo-West-Pacific region;7 species, Armina (Armina) comta， A. (A.) papillata，A. (A). japonica，A. (A.) major，A. (A.) appendiculata，A. (Lingguella) babai，A. (L.) variclosa are common to Japanese and Chinese waters; 10 species, Armina (Armina)longicauda，A. (A.) sinensis，A. (A.) bilamella，A. (Linguella) punctilucens，Dermatobranchus (Dermatobranchus) marginlatus, D. (Pleuroleura) tongshanensis，D. (P.) multistriatus， Pleurophyllidiopsis amoyensis, P. tsingtaoensis，P. orientalis are known to be limited to Chinese waters.
- 124
- |
- 78
- |
- 0
发布时间：2023-04-28 - 摘要：Two species of the genus Ruditapcs (Mollusca, Lamellibranchia， Veneridae) viz,R. philippinarum (Adams et Reeve) and R. variegata(Sowerby) are found off China coast，the former species being very abundant and wide1y distributed in our coasts，and is also an important species for culture. For many years, there has been some confusion with regard to the taxonomic distinction between these two species in our country. With an aim of clearing up such a confusion， we re-examined a total of 3,730 specimens. A carefu1 study is made not only on the difference in external shell morphology, but also on the difference of the mantle and mant1e fusion, outer and inner demibranchs，labial palp, siphon, and the shape of the s.perm of these two species. The comparative morphological structure of these two species (P1ate Ⅰ-Ⅲ) clear1y show that they are two distinct species. These two species also have different 1imits of distribution. Ruditapes philippinarum is found as north as the Bohai Sea, its southern 1imit is in the Guangdong continental coast in the South China Sea, but it is noticeab1y absent in Hainan Is1and and the Beibu Gulf. R. variegate has its northern limit of distribution in Pingtan (Fujian Province) in the East China Sea, and has a southward distribution extending to the southern tip of Hainan Is1and and to the Beibu Gulf.关键词：RUDITAPES
- 107
- |
- 60
- |
- 0
发布时间：2023-04-28 - 摘要：The present paper is a study on individual and seasonal variations of the fat content in the muscle and liver in Large Yellow Croaker. All the 555 samples collected off Zhejiang in 1961，1962 and 1975 have been analysed by Soxhlet's method.
- 108
- |
- 70
- |
- 0
发布时间：2023-04-28 - 摘要：1. The present report deals. With the deep-sea fishes from the South China Sea which were collected off the eastern coast of Hainan Island, at depth from 200 to 1100 meters. Seventy-one species belonging to 12 orders and 37 families were identified. Of these, 34 are new records for China. The fact that such a great number of species are obtained from such a limited region shows that the South China Sea is abundant in deep-sea fish fauna. 2. Component of deep-sea fishes of the South China Sea have been grouped on the basis of their zoogeographical distribution. Of the 71 species of deep-sea fishes, 51 are of West-Pacific elements, 16 are Indo-West Pacific elements and 4 are widely distributed over the three great oceans. 3. The deep-sea fishes of the South China Sea compared with that of adjacent waters are more closely allied with that of Japanese Pacific coast than that of Philippine and Indonesia. 4. The bathymetrical distribution of the deep-sea fishes of the South China Sea are: 61 species within the depth of 500 meters, 6 species within 1000 meters and 4 species over 10'00 meters. According to the two great groups of deep-sea fish fauna, most species recorded in our paper belong to the Coastal Deep-sea Fish Fauna and a few species to. the Oceanic Deep-sea Fish Fauna.关键词：eep-sea fishes;South China Sea
- 147
- |
- 61
- |
- 0
发布时间：2023-04-28
- Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
0