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Kotlyakov V. M. Chernova L. P. Muraviev A. Y. Khromova T. Y. 《Doklady Earth Sciences》2019,489(1):1376-1382
Doklady Earth Sciences - The results of measurements of the area of surging glaciers in 1974 and 2018 are compared to the data on their areas in 1913. A large decadal (middle-term) variability in... 相似文献
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Kotlyakov V. M. Chernova L. P. Khromova T. E. Muraviev A. Ya. Kachalin A. B. Tiuflin A. S. 《Doklady Earth Sciences》2018,483(2):1547-1552
Doklady Earth Sciences - The results of 20 years of field data (1963–1982) and 50 years of remote observations (1963–2012) on Medvezhy Glacier in the Pamirs by the Institute of... 相似文献
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Numerical modeling was applied to study the generation of transversal jet filaments observed in the summer of 1999 after an upwelling event off the northern coast of the Gulf of Finland. An eddy resolving model well reproduces the mesoscale coherent structures observed. It was shown that they represent manifestations of instability of alongshore baroclinic jet currents of an upwelling-downwelling origin. An estimate of the effective lateral eddy diffusivity in the mesoscale coherent structures equal to 500 m2/s was obtained as a result of statistical processing of pseudorandom model fields of the temperature and current velocity. 相似文献
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A new conglomerate test in palaeomagnetism 总被引:2,自引:0,他引:2
Stanislav V. Shipunov Anton A. Muraviev & Mikhail L. Bazhenov 《Geophysical Journal International》1998,133(3):721-725
The conglomerate test is widely used in palaeomagnetism to date components of natural remanent magnetization with respect to deposition of conglomerates. It has been demonstrated, however, that this test may be positive even if the data are strongly contaminated by a secondary remanence, especially for the commonly used small number of clasts Starkey & Palmer 1970). Here we show with the aid of numerical simulations that different statistical procedures employed in this test have similar low sensitivities to remagnetization. We suggest a new conglomerate test which incorporates additional information on the direction of a secondary palaeomagnetic component which is isolated from either clasts themselves or their host rocks. Numerical simulations show that this new test is about twice as sensitive to remagnetization as the previous procedures and is robust with respect to small errors in the direction of a secondary component. 相似文献
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