Russian Journal of Earth Sciences最新文献

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Substantiation of informational system for coal seam outburst danger continuous prediction with high level of the result veracity 煤层突出危险性连续预测信息系统的建立,结果准确性高
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-07-15 DOI: 10.2205/2022es000799
A. Shadrin, Yu.A. Diyuk, A. Teleguz
{"title":"Substantiation of informational system for coal seam outburst danger continuous prediction with high level of the result veracity","authors":"A. Shadrin, Yu.A. Diyuk, A. Teleguz","doi":"10.2205/2022es000799","DOIUrl":"https://doi.org/10.2205/2022es000799","url":null,"abstract":"The application feld, the construction principle, the content of data system for coal seam outburst danger continuous prediction and its integration with the subsystems of a coal mine multifunctional safety system are substantiated. Widely known models for initiating gas-dynamic phenomena in underground mines are analyzed. It is shown that to describe the process of sudden coal and gas outburst preparation the most suitable model is the one that consists of two stages: the creation of a coal block structure by means of developing the crack system (the frst stage) and squeezing the blocks out of the mouth of the future outburst cavity (the second stage). Basic factors important for reliable prediction of outburst danger are substantiated on their basis. The infuence of failing to take into account the basic factors of the outburst danger for some instrumental and geophysical methods of prediction is analyzed. It is demonstrated that the most reliable geophysical method, at present, is the spectral-acoustic one. The description of the procedure for experimental determination of the outburst danger limit value indicator for this method and for certain coal workings is introduces.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"192 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79784896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Downward continuation of airborne gravimetry data by means of spherical radial basis functions 基于球面径向基函数的航空重力数据向下延拓
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-07-15 DOI: 10.2205/2022es000804
L. Sugaipova, Yu. M. Neyman
{"title":"Downward continuation of airborne gravimetry data by means of spherical radial basis functions","authors":"L. Sugaipova, Yu. M. Neyman","doi":"10.2205/2022es000804","DOIUrl":"https://doi.org/10.2205/2022es000804","url":null,"abstract":"The problem of downward continuation of airborne gravimetry data is discussed. Use of spherical radial \u0000basis functions (SRBF) to solve this ill-posed problem is proposed. Gravity disturbances observed at \u0000flight high are continued downward to disturbing potential. The SRBF method is numerically tested \u0000using synthesised data for flight heights 2000 m, 4600 m and 6000 m and grid steps 1 arcmin and \u00002.5 arcmin in area bounded by colatitudes 40°, 43° and longitudes 153°, 157° (spherical coordinates). \u0000The experiments prove that the SRBF method can provide stable and accurate results. Moreover, as a \u0000result of this procedure one have an approximator in the form of a linear combination of SRBF which \u0000allows to determine the values of different transforms of potential by applying the corresponding \u0000operators to this expression.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"87 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79372161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Conjugate properties of Pi3/Ps6 pulsations according to Antarctica-Greenland observations 南极-格陵兰观测资料中Pi3/Ps6脉动的共轭性质
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-07-15 DOI: 10.2205/2022es000805
V. Martines-Bedenko, V. Pilipenko, M. Hartinger, N. Partamies, V. Pilipenko
{"title":"Conjugate properties of Pi3/Ps6 pulsations according to Antarctica-Greenland observations","authors":"V. Martines-Bedenko, V. Pilipenko, M. Hartinger, N. Partamies, V. Pilipenko","doi":"10.2205/2022es000805","DOIUrl":"https://doi.org/10.2205/2022es000805","url":null,"abstract":"We consider interhemispheric properties of fine structure of substorm – quasi-periodic geomagnetic fluctuations, Pi3 pulsations, using data from conjugate magnetometers in Antarctica and Greenland. Pi3 pulsations are found to accompany both the substorm expansion/recovery phases and the steady magnetospheric convection (SMC) events. The epicenter of Pi3 power is at the same latitude as maximal amplitude of magnetic bays. The interhemispheric properties of Pi3 pulsations are not consistent: in some events, coherent in-phase magnetic oscillations are observed in both hemispheres, in others, periodic variations are observed in one hemisphere only. When Pi3 pulsations are observed in both conjugate sites, their H-components are in-phase, which corresponds to the fundamental mode of field line oscillations between high-conductive ionospheres. Conjugate observations have provided an additional information on an elusive mechanism of Pi3 pulsations.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"31 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87371738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Results of numerical modelling of the problem of video pulse ground penetrating radar research in freshwater bodies 淡水水体中视频脉冲探地雷达问题的数值模拟结果
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-07-15 DOI: 10.2205/2022es000808
O. Gulevich, L. Volkomirskaya, I. Mingalev, V. Varenkov, Z. Suvorova, O. Akhmetov, O. Mingalev, A. Reznikov
{"title":"Results of numerical modelling of the problem of video pulse ground penetrating radar research in freshwater bodies","authors":"O. Gulevich, L. Volkomirskaya, I. Mingalev, V. Varenkov, Z. Suvorova, O. Akhmetov, O. Mingalev, A. Reznikov","doi":"10.2205/2022es000808","DOIUrl":"https://doi.org/10.2205/2022es000808","url":null,"abstract":"Ground-penetrating radar profiling on the surface of water bodies is applied in various geological and engineering studies. Here, we present the results of numerical simulation of the propagation of a video pulse electromagnetic signal in a freshwater body with gradients of the permittivity and electrical conductivity in the near-bottom layer. The method of numerical solutions of Maxwell's equations in the time domain is applied, in the general setting for rapidly changing processes, without restrictions on the magnitude of the change in the parameters of the medium. The results make it possible to explain the apparent decrease in water depth according to GPR data in comparison with the true depth and the appearance of additional reflecting boundaries on radargrams in the bottom layer.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"41 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87471153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Contribution of mesoscale eddies to energy of the Lofoten Basin 中尺度涡旋对罗浮敦盆地能量的贡献
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-07-15 DOI: 10.2205/2022es000802
V. Travkin, V. Zhmur, Tatiana Belonenko
{"title":"Contribution of mesoscale eddies to energy of the Lofoten Basin","authors":"V. Travkin, V. Zhmur, Tatiana Belonenko","doi":"10.2205/2022es000802","DOIUrl":"https://doi.org/10.2205/2022es000802","url":null,"abstract":"A comparative assessment of the contribution of eddies and other dynamic structures to the energy of the Lofoten Basin is carried out. The basis of the study is the data of global ocean reanalysis GLORYS12V1 for 1993–2019. We estimate the total kinetic and potential energy as well as the corresponding contribution of eddy energy for a region bounded by an isobath of 3000 m. We use the method of automatic identification of vortices for the analysis which allows us to calculate the eddy kinetic and potential energy in the automatically selected areas of the eddies. We establish that the potential energy of both cyclones and anticyclones is on average 2–3 times higher than the kinetic \u0000energy values, and the energy values of kinetic and potential for anticyclones dominate relative to the energy of cyclones. We also consider the interannual variability and seasonal course of eddy kinetic and potential energy. The seasonal course revealed an increase in both types of energy in the winter months. It is established that the contribution of eddies to the total energy of the basin is small. The contribution of eddy kinetic energy to the total energy of the basin is 7.3%, and the contribution of eddy potential energy is 8.4%. This means that the main contribution to the energy of the basin is made not by mesoscale eddies, but by other dynamic structures i.e. filaments and background flow.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"9 2 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89581350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Compiling ship and airborne measurements for the Antarctic's second-generation magnetic anomaly map 编制南极第二代磁异常图的船载和机载测量数据
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-07-01 DOI: 10.2205/2022es000801
A. Golynsky, Dmitry A Golynsky, Ralph von Frese
{"title":"Compiling ship and airborne measurements for the Antarctic's second-generation magnetic anomaly map","authors":"A. Golynsky, Dmitry A Golynsky, Ralph von Frese","doi":"10.2205/2022es000801","DOIUrl":"https://doi.org/10.2205/2022es000801","url":null,"abstract":"In 2001, the Antarctic Digital Magnetic Anomaly Project produced the ADMAP-1 compilation that included the first magnetic anomaly map of the region south of 60◦S. To help fill ADMAP-1’s regional coverage gaps, the international geomagnetic community from 2001 through 2014 acquired an additional 2.0+ million line-km of airborne and marine magnetic anomaly data. These new data together with surveys that were not previously in the public domain significantly upgraded the ADMAP compilation for Antarctic crustal studies. The merger of the additional data with ADMAP-1’s roughly 1.5 million line-km of survey data produced the second-generation ADMAP-2 compilation. The present study comprehensively reviews the problems and progress in merging the airborne and ship magnetic measurements obtained in the harsh Antarctic environment since the first International Geophysical Year (IGY 1957–58) by international campaigns with disparate survey parameters. For ADMAP-2, the newly acquired data were corrected for the diurnal and International Geomagnetic Reference Field effects, edited for high-frequency errors, and levelled to minimize line-correlated noise. ADMAP-2 provides important new constraints on the enigmatic geology of the Gamburtsev Subglacial Mountains, Prince Charles Mountains, Dronning Maud Land, and other poorly explored Antarctic areas. It links widely separated outcrops to help unify disparate geologic and geophysical studies for new insights on the global tectonic processes and crustal properties of the Antarctic. It also supports studies of the Antarctic ice sheet’s geological controls, the crustal transitions between Antarctica and adjacent oceans, and the geodynamic evolution of the Antarctic crust in the assembly and break-up of the Gondwana and Rodinia supercontinents.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"13 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86666773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Projected changes in the near-surface atmosphere over the Barents Sea based on CMIP5 scenarios 基于CMIP5情景的巴伦支海近地表大气的预估变化
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-05-28 DOI: 10.2205/2021es000770
P. Verezemskaya, Y. Selivanova, N. Tilinina, M. Markina, M. Krinitskiy, V. Sharmar, O. Razorenova
{"title":"Projected changes in the near-surface atmosphere over the Barents Sea based on CMIP5 scenarios","authors":"P. Verezemskaya, Y. Selivanova, N. Tilinina, M. Markina, M. Krinitskiy, V. Sharmar, O. Razorenova","doi":"10.2205/2021es000770","DOIUrl":"https://doi.org/10.2205/2021es000770","url":null,"abstract":"Atmospheric climatological characteristics of the Barents Sea were analyzed in the model output of AMIP5 models for the present climate and climate projections under RCP4.5 and RCP8.5 scenarios for different periods of the 21st century. The results reveal strong changes in the mean surface air temperature amounting to more than 2 degrees during the 21st century. In line with this the frequency and duration of heat waves is increasing with the number and duration of the cold waves decreasing in course of the time period analyzed. Mean wind speed demonstrates upward changes under both RCP4.5 and RCP8.5 scenarios and these changes are accompanied by the upward change in the extreme wind speed over the Barents Sea at least for the first half of the century. The results are discussed in the context of potential changes in the atmospheric moisture transports which might be intensified during 21st century.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"13 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81362822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of Geoportal’s Web-Technologies in GIS, Case Study: Interactive Geology Atlas 地质门户网站技术在地理信息系统中的应用,案例研究:交互式地质地图集
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-05-27 DOI: 10.2205/2022es000794
Grigory Boyarshinov, A. Popov, A. Odintsova, Sofia Gvozdik, A. Rybkina, A. Korolkova
{"title":"Application of Geoportal’s Web-Technologies in GIS, Case Study: Interactive Geology Atlas","authors":"Grigory Boyarshinov, A. Popov, A. Odintsova, Sofia Gvozdik, A. Rybkina, A. Korolkova","doi":"10.2205/2022es000794","DOIUrl":"https://doi.org/10.2205/2022es000794","url":null,"abstract":"Abstract: A unique geoinformation service “The Interactive Geology Atlas” has been created and launched based on the data obtained by the Authors during years of research and evaluation of integrated biostratigraphic, paleomagnetic and sedimentological data as well as published references materials. The Interactive Atlas includes geological sections comprehensively studied, described and mapped. Contrary to analogous services, the Atlas covers more territory of Paratethys and time laps and allows to add various content depending on the user requirements. All maps (basemaps) are available for study both individually and joint for comprehensive analysis through the compiling the unified legend to all layers and maps. The combination of different data allows to track how the paleogeographic conditions of the Paratethys territory have evolved and to highlight the main events associated with fluctuations in climate, salinity, etc. Besides being scientifically interesting, the Atlas can become useful in geologic exploration with a view to evaluate the potential areas of mineral resources. For instance, paleogeographic maps are crucial in this regard. FAIR principles have become the reference criteria for improving datasets: Findability, Accessibility, Interoperability, and Reusability.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"20 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82406885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
On some possibilities of multi-frequency remote sensing of the water surface 论水面多频遥感的几种可能性
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-05-20 DOI: 10.2205/2022es000795
Yuriy A. Titchenko, V. Karaev, Yijun He
{"title":"On some possibilities of multi-frequency remote sensing of the water surface","authors":"Yuriy A. Titchenko, V. Karaev, Yijun He","doi":"10.2205/2022es000795","DOIUrl":"https://doi.org/10.2205/2022es000795","url":null,"abstract":"This study is aimed at expanding the number of measured parameters to analyze the features of the formation of surface waves under the influence of wind. The paper develops an original approach to obtaining information on the variability of the short-wavelength part of the wave spectrum (examples are given for wavelengths from about 50 cm to 2 cm in 6 intervals) and the long-wave component of the wave spectrum (> 1 m) in marine conditions. Retrievable information about waves will allow studying the interaction of wind simultaneously with the short-wave and long-wave components of the wave spectrum and will be in demand by scientists involved in numerical modeling of the wave climate and interested in refining the model of near-surface wind interaction with waves. In addition, new information about the short-wave part of the wave spectrum in different wavelength ranges will improve the accuracy of near-surface wind speed retrieval from remote sensing data. This work is devoted to a theoretical analysis of slope variance retrieved from reflected acoustic pulses for different radiation frequencies depending on the near-surface wind speed and swell wave height. A study was made of the measured slope variances of large-scale waves, compared to the radiation wavelength, in six intervals depending on the wind speed and swell height. It is shown that the use of difference slope variances of the large-scale wave makes it possible to get rid of the influence of swell in the case of mixed waves and obtain a better correlation with the wind speed. A method is proposed for retrieving the declination degree for the spectrum of wave heights in given intervals of radiation wavelengths. Within the framework of this method, it is possible to retrieve the boundary wave numbers for each radiation wavelength.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91084138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seasonal variability of the potential vorticity in the Lofoten vortex 罗浮敦涡位涡度的季节变化
IF 1.3
Russian Journal of Earth Sciences Pub Date : 2022-05-20 DOI: 10.2205/2022es000786
E. Novoselova
{"title":"Seasonal variability of the potential vorticity in the Lofoten vortex","authors":"E. Novoselova","doi":"10.2205/2022es000786","DOIUrl":"https://doi.org/10.2205/2022es000786","url":null,"abstract":"The anticyclonic quasi-permanent Lofoten vortex is a strong dynamic formation in the center of the Lofoten Basin in the Norwegian Sea. We used the oceanic reanalysis data GLORYS12V1. We analyzed a seasonal distribution of the relative and potential vorticity, as well as the orbital velocities and the potential density in the Lofoten vortex. The main points of the potential vorticity calculating are considered. The values of the Lofoten vortex volume, the horizontal dimension (the diameter) as well as the vertical scale for the period from 2000 to 2019 are obtained, as well as the method for estimates of these characteristics is described in detail. It was shown that the intensification of the vortex occurs in the summer, and its relaxation -- in the winter.","PeriodicalId":44680,"journal":{"name":"Russian Journal of Earth Sciences","volume":"28 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87013272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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