State Oceanic Administration is an administrative agency subordinate to the Ministry of Land and Resources, responsible for the supervision and management of sea area in the People's Republic of China and coastal environmental protection, protecting national maritime rights and organizing scientific and technical research of its territorial waters. The current Director of the SOA is Liu Cigui. Wikipedia.
State Oceanic Administration and China Ocean Mineral Resources Research And Develop Ment Association | Date: 2015-02-06
A strain of marine oil degrading bacteria, compounds obtained by fermentation and their uses are published. The name is Alcanivorax dieselolei T6-6, with preservation Number: CGMCC NO: 9033. It belongs to -proteobacteria, oceanospirillales, alkane degrading bacteria branch, alcanivorax category and diesel alcanivorax species. The said bacteria can be used to degrade and remove petroleum hydrocarbon, control environmental pollution, produce surfactants, reduce surface tension of water, and for other purposes; a compound can be isolated from secondary metabolites after fermentation, one of which is dieselolei T6-6, 2-amino-6-(N-2-carbonyl-4-tridecyl-cyclobutane) hexanoic acid, and it is a kind of lysine ester. The compound has emulsifying activity on different organics, antibacterial effects against Gram-positive bacteria and fungus, and a better cytotoxic activity.
Cai W.,CSIRO |
Qiu Y.,State Oceanic Administration
Journal of Climate | Year: 2013
A well-known feature of the Indian Ocean dipole (IOD) is its positive skewness, with cold sea surface temperature (SST) anomalies over the east pole (IODE) exhibiting a larger amplitude than warm SST anomalies. Several mechanisms have been proposed for this asymmetry, but because of a lack of observations the role of various processes remains contentious. Using Argo profiles and other newly available data, the authors provide an observation-based assessment of the IOD skewness. First, the role of a nonlinear dynamical heating process is reaffirmed, which reinforces IODE cold anomalies but damps IODE warm anomalies. This reinforcing effect is greater than the damping effect, further contributing to the skewness. Second, the existence of a thermocline-temperature feedback asymmetry, whereby IODE cold anomalies induced by a shoaling thermocline are greater than warm anomalies associated with a deepening thermocline, is the primary forcing of the IOD skewness. This thermocline-temperature feedback asymmetry is a part of the nonlinear Bjerknes-like positive feedback loop involving winds, SST, and the thermocline, all displaying a consistent asymmetry with a stronger response when IODE SST is anomalously cold. The asymmetry is enhanced by a nonlinear barrier layer response, with a greater thinning associated with IODE cold anomalies than a thickening associated with IODE warm anomalies. Finally, in response to IODE cool anomalies, rainfall and evaporative heat loss diminish and incoming shortwave radiation increases, which results in damping the cool SST anomalies. The damping increases with IODE cold anomalies. Thus, the IOD skewness is generated in spite of a greater damping effect of the SST-cloud-radiation feedback process. © 2013 American Meteorological Society.
State Oceanic Administration | Date: 2013-02-07
A composite marine bacterial liquid for the synergic degradation of high-molecular-weight polycyclic aromatic hydrocarbons (HMW PAHs) and the preparation method thereof. The composite marine bacterial liquid is generated by mixing the fermented culture liquid of a stain of Cycloclasticus sp. PY97M and a stain of Marinobacter sp. D15-8W, the cell concentration of each is 10^(7)-10^(9 )CFU/mL. The preparation method includes: inoculating the seed liquid of Cycloclasticus strains and Marinobacter strains individually into the sodium acetate medium or M8 medium, fermenting under the condition of defoaming by flowing addition of defoamer, and mixing the fermented cultures to obtain the composite marine bacterial liquid, then preparing a 5-fold concentrated liquid by centrifuging and storing at 4 C.
State Oceanic Administration | Date: 2014-02-17
The invention discloses a submarine topography construction method based on multi-source water depth data integration, which achieves reasonable splicing of various data such as multi-beam sounding, single-beam sounding, historical topography map and global topography and submarine topography construction. The invention comprises the following steps of: converting a historical submarine topography map into grid data, converting water depths of other sources into grids, using an overlapping and contrasting method to evaluate the accuracy of the water depths of different sources; using a multi-map-layer method to carry out integration, cutting and splicing on multi-source water depth data, constructing an error distribution model to reasonably revise and integrate various-source water depth data; and constructing multi-source water depth submarine topography and grid. The submarine topography construction method has the advantages that in marine mapping and charting process, the multi-source data can be effectively used, the historical water depth data accuracy and the comprehensive utilization efficiency are promoted, and the submarine topography construction method has important practical application values in marine mapping, submarine topography charting and submarine scientific studies.
State Oceanic Administration | Date: 2014-05-01
A preparation method of filter element for swift and highly efficient adsorption of Cs includes the following steps: to a substrate material, adding a coupling agent with 1-3 wt % and ammonium phosphomolybdate with 1-10 wt %, based on the weight of the substrate material; heating to 160220 C.; stirring and mixing evenly so that the substrate material is combined with ammonium phosphomolybdate; spining through 5 m micropore, the spun filament forming adsorbent filter element with a thickness of 5-50 mm in the rotational cylinder framework material; evenly coating ammonium phosphomolybdate on the outer surface of the adsorbent filter element; and stabilizing and implementing an aging process by heating to 80-120 C. for 3-12 h. The filter element prepared by this method provides an excellent water permeability, oxidization resistance, long-term immersion in hot water of below 100 C., radiation decomposition resistance, stable adsorption, swift detection, high efficiency and precision.
State Oceanic Administration | Date: 2014-07-31
The invention discloses a multi-beam bathymetric chart construction method based on submarine digital depth model feature extraction. The method comprises the steps of: constructing a DDM (Digital Depth Model) based on raw multi-beam echo soundings; establishing a slope and second derivative composite model based on the DDM; extracting feature points based on DDM sub-blocks; querying the multi-beam depth based on the feature points; constructing the multi-beam bathymetric chart based on layers.
State Oceanic Administration | Date: 2015-02-04
The invention discloses a preparation method for a filter element capable of swiftly and high efficiently absorbing Cs, including the following procedures: modifying a substrate material with ammonium phophomolybdate; spinning a filament from the modified substrate material and molding the spinned filament to a filter element; coating ammonium phophomolybdate on the surface of the filter element; and implementing an aging and stabilization process. The filter element prepared by this invention exhibits an excellent water permeability, oxidization resistance, long-term immersion at water temperatures 100 C, radiation-proof decomposition, stable absorption, swift inspection, high efficiency and precision; stable Cs measurement is not needed to confirm the absorption rate.
State Oceanic Administration | Date: 2013-11-28
The present invention discloses a submarine topography six-dimensional grid mapping method, and particularly to a method based on known discrete bathymetric data points. According to the present invention, a submarine topography six-dimensional grid mapping method including X-coordinate, Y-coordinate, water depth, slope, second derivative and measuring time is established, a submarine topography three-dimensional grid on the basis of discrete water depth data and measuring time is formed, and then submarine slope and second derivative of each grid point are calculated and the measuring time is superposed simultaneously, thus forming a submarine topography six-dimensional grid technical method. The present invention comprises a plurality of steps: establishing a submarine topography six-dimensional grid structure and a topography dimension grid, establishing a time dimension grid, establishing a slope dimension grid, and establishing a second derivative dimension grid. The present invention has the advantages of being accurate in mapping data, convenient to operate, wide in application range, little in influence of natural weather and the like in the process of Chinese coastal mapping and marine demarcation.
State Oceanic Administration | Date: 2013-11-28
The present invention relates to a recognition method of submarine topography, and in particular, to an automatic recognition method of foot point of continental slope based on topography grid. The present invention comprises the steps of cutting a topography grid model through a straight line or a broken line to generate a two-dimensional topography section line, then carrying out first derivation on the two-dimensional topography section to generate a slope section line and a second derivative section line, then obtaining an extreme point of the second derivative section line, using a D-P algorithm to obtain a D-P topography section after second simplification, then carrying out second derivation on the D-P topography section and using a topography and slope judgment method to recognize and eliminate concave hull topography in the D-P section, and finally using such judgment methods as slope, water depth, second derivation, concavity and convexity, continuity and segmentation and the like based on the D-P topography, slope and second derivative section to form an recognition method. The present invention has the advantages that the present invention has accurate mapping data, is convenient to operate, and is less affected by the natural weather in coastal mapping process of our country, and the like during a costal mapping process in our country.
State Oceanic Administration | Date: 2014-11-07
The invention discloses a sound velocity profile (SVP) streamlining and optimization method based on maximum offset of velocity, and provides detailed comprehensive technical process so as to solve the problem that the work efficiency of multi-beam detection and data processing are seriously influenced because the original sound velocity profile has a large data quantity. An MOV method is provided and is used for deleting the redundant points automatically and quickly, and for evaluating the influence of the streamlined sound velocity profile on precision of multi-beam sounding through ray tracing and error analysis. The method has an important actual application value in the aspects of marine surveying and charting, multi-beam surveying, a marine geographic information system, computer graphics, submarine science research and the like, and can be popularized.