Dispersed organic matter and its fluxes in oceans and seas from the example of the White Sea: Results of a 12-year study     

A. P. Lisitsyn  A. N. Novigatskii  V. P. Shevchenko  A. A. Klyuvitkin  M. D. Kravchishina  A. S. Filippov  N. V. Politova 《Doklady Earth Sciences》2014,456(1):635-639

Annual and long-term quantitative estimations of the vertical fluxes of sedimentary matter in the White Sea are the basis for direct calculations of the gain of chemical components and minerals and diverse pollution of the surface layer of the bottom sediments. The White Sea, one of six Russian Arctic seas, may be considered as a megapolygon for further modern study using the new mechanisms of Arctic sedimentogenesis discovered. This work is directed at elaboration of new technologies of complex study of seas using submarine sedimentation and regular vessel observatories. The first priority task is year-round monitoring along the Northern Sea route.  相似文献   

Morphological indictors of the chirality of solar filaments     

B. P. Filippov 《Astronomy Reports》2017,61(10):891-900

There is no doubt that the structural features of filaments reflect properties of their magnetic fields, such as chirality and helicity. However, the interpretation of some morphological features can lead to incorrect conclusions when the observing time is limited and the spatial resolution is insufficiently high. In spite of the relative constancy of their overall shapes, filaments are dynamical formations with inhomogeneities moving along the threads making them up. Therefore, it is possible to observe material concentrated not only in magnetic traps, but also along curved arcs. Difficulties often arise in determining the chirality of filaments with anomalous “barbs”; i.e., those whose jagged side is located on the opposite side of the axis compared to most (“normal”) filaments. A simple model is used to show that anomalous barbs can exist in an ordinary magnetic flux rope, with the threads of its fine structure oriented nearly perpendicular to its length. A careful analysis of images with the maximum available spatial resolution and with information about temporal dynamics, together with comparisons with observations in various spectral lines, can enable a correct determination of the chirality of filaments.  相似文献