Izvestiya Atmospheric and Oceanic Physics最新文献_第3页

Turbulent Exchange in Unsteady Air–Sea Interaction at Small and Submesoscales 小尺度和亚主题尺度非稳定海气相互作用中的湍流交换

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-05-14 DOI: 10.1134/s0001433824700105

A. M. Chukharev, M. I. Pavlov

Abstract

An adequate description of the interaction between the atmosphere and ocean remains one of the most important problems of modern oceanology and climatology. The extremely wide variety of physical processes occurring in the coupled layers, large range of scales, and moving boundary all significantly complicate the creation of models that would allow calculating the physical characteristics in both media with the necessary accuracy. In this paper the temporal variability of dynamic parameters in the driving layer of the atmosphere and in the near-surface layer of the sea on small and submesoscales from one to several tens of hours is considered. The experimental data show a very high correlation between the friction wind velocity and turbulence intensity in the upper sea layer on all scales recorded. One important distinguishing feature of all measured physical quantities in both media is the presence of quasi-periodic oscillations with different periods. For a more accurate description of momentum and energy fluxes from the atmosphere, a nonstationary model of turbulent exchange in the near-surface layer of the sea is proposed. It takes into account quasi-periodicity in the intensity of dynamic interaction between the atmosphere and the sea at these scales. In the model we use the equations of momentum and turbulent energy balance, the system of equations is solved numerically, and the calculation results are compared with other models and with experimental data. It is shown that taking into account the nonstationarity of the wind strain improves the correspondence between the calculations and the experimental data. It is noted that, in the nonstationary case, the energy and momentum flux from the atmosphere and the turbulence intensity increases compared to the action of a constant average wind of the same duration. Therefore, the strong averaging often used in global models may markedly underestimate the intensity of the dynamic interaction between the atmosphere and ocean.

摘要充分描述大气和海洋之间的相互作用仍然是现代海洋学和气候学最重要的问题之一。耦合层中发生的物理过程种类繁多，尺度范围大，边界移动，所有这些都使模型的建立变得非常复杂，而模型的建立可以以必要的精度计算两种介质中的物理特征。本文考虑了大气驱动层和近海面层的动态参数在小尺度和次中尺度（从一小时到几十小时）上的时变性。实验数据显示，在所记录的所有尺度上，海面上层的摩擦风速和湍流强度之间都有很高的相关性。在这两种介质中测量到的所有物理量的一个重要特征是存在不同周期的准周期振荡。为了更准确地描述来自大气层的动量和能量通量，提出了近海面层湍流交换的非稳态模型。该模型考虑了大气与海洋在这些尺度上动态相互作用强度的准周期性。在模型中，我们使用了动量和湍流能量平衡方程，对方程组进行了数值求解，并将计算结果与其他模型和实验数据进行了比较。结果表明，考虑到风应变的非平稳性，计算结果与实验数据之间的对应关系有所改善。值得注意的是，在非稳态情况下，与相同持续时间的恒定平均风的作用相比，来自大气的能量和动量通量以及湍流强度都会增加。因此，全球模式中经常使用的强平均法可能会明显低估大气与海洋之间动态相互作用的强度。

{"title":"Turbulent Exchange in Unsteady Air–Sea Interaction at Small and Submesoscales","authors":"A. M. Chukharev, M. I. Pavlov","doi":"10.1134/s0001433824700105","DOIUrl":"https://doi.org/10.1134/s0001433824700105","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>An adequate description of the interaction between the atmosphere and ocean remains one of the most important problems of modern oceanology and climatology. The extremely wide variety of physical processes occurring in the coupled layers, large range of scales, and moving boundary all significantly complicate the creation of models that would allow calculating the physical characteristics in both media with the necessary accuracy. In this paper the temporal variability of dynamic parameters in the driving layer of the atmosphere and in the near-surface layer of the sea on small and submesoscales from one to several tens of hours is considered. The experimental data show a very high correlation between the friction wind velocity and turbulence intensity in the upper sea layer on all scales recorded. One important distinguishing feature of all measured physical quantities in both media is the presence of quasi-periodic oscillations with different periods. For a more accurate description of momentum and energy fluxes from the atmosphere, a nonstationary model of turbulent exchange in the near-surface layer of the sea is proposed. It takes into account quasi-periodicity in the intensity of dynamic interaction between the atmosphere and the sea at these scales. In the model we use the equations of momentum and turbulent energy balance, the system of equations is solved numerically, and the calculation results are compared with other models and with experimental data. It is shown that taking into account the nonstationarity of the wind strain improves the correspondence between the calculations and the experimental data. It is noted that, in the nonstationary case, the energy and momentum flux from the atmosphere and the turbulence intensity increases compared to the action of a constant average wind of the same duration. Therefore, the strong averaging often used in global models may markedly underestimate the intensity of the dynamic interaction between the atmosphere and ocean.</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"79 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140934234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On Height of the Surface Air Layer by Sodar Data 通过 Sodar 数据了解地表空气层高度

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-05-14 DOI: 10.1134/s0001433824700063

M. A. Lokoshchenko

Abstract

Average empirical estimations of the surface air layer height in Moscow have been received by the data of long-term acoustic remote sensing of the atmosphere using the MODOS Doppler sodar (METEK, Germany). Based on the assumption that the average conditions are close to neutral stratification, this height, as the top of the quasi-linear section of the average long-term wind velocity profile in semilogarithmic coordinates, is 40–60 m. The wind rotation height, i.e., the height of intersection of day and night wind profiles, is 95 m per year on average. The roughness length in conditions of loosely packed but high urban development in the vicinity of Moscow State University in Moscow is 5 m. According to the criterion of the constant wind direction in the surface air layer, its height manifests itself in the monthly average wind direction profiles over the “dead zone” of the sodar (40 m) in approximately one out of three cases and usually amounts to 60 m (less often 80 or 100 m). In all other cases, it is apparently masked by the dead zone. According to this approach, the average height of the surface layer is probably a little less than 50 m, which is close to the estimate obtained from the logarithmic distribution of wind velocity with height in this layer. The daily variation of the surface air layer height is noted by the largest values in the afternoon (80–100 m in summer under conditions of prevailing unstable stratification and 60–80 m in winter) and the smallest ones (less than 40 m) in the late evening and at night in summer and from evening to noon in winter.

摘要莫斯科地表空气层高度的平均经验估计是通过使用 MODOS 多普勒超声波雷达（德国 METEK 公司）对大气进行长期声学遥感的数据得出的。根据平均条件接近中性分层的假设，该高度作为半对数坐标中长期平均风速剖面的准线段顶端，为 40-60 米。根据地表空气层风向恒定的标准，其高度在索达 "死区"（40 米）的月平均风向剖面图中约占三分之一，通常为 60 米（较少为 80 或 100 米）。在所有其他情况下，风向剖面显然被死区所掩盖。根据这种方法，表层的平均高度可能略低于 50 米，这与表层风速随高度变化的对数分布得出的估计值相近。表层空气高度的日变化特点是：下午的数值最大（夏季不稳定分层条件下为 80-100 米，冬季为 60-80 米），夏季傍晚和夜间的数值最小（小于 40 米），冬季从傍晚到中午的数值最小（小于 40 米）。

{"title":"On Height of the Surface Air Layer by Sodar Data","authors":"M. A. Lokoshchenko","doi":"10.1134/s0001433824700063","DOIUrl":"https://doi.org/10.1134/s0001433824700063","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Average empirical estimations of the surface air layer height in Moscow have been received by the data of long-term acoustic remote sensing of the atmosphere using the MODOS Doppler sodar (METEK, Germany). Based on the assumption that the average conditions are close to neutral stratification, this height, as the top of the quasi-linear section of the average long-term wind velocity profile in semilogarithmic coordinates, is 40–60 m. The wind rotation height, i.e., the height of intersection of day and night wind profiles, is 95 m per year on average. The roughness length in conditions of loosely packed but high urban development in the vicinity of Moscow State University in Moscow is 5 m. According to the criterion of the constant wind direction in the surface air layer, its height manifests itself in the monthly average wind direction profiles over the “dead zone” of the sodar (40 m) in approximately one out of three cases and usually amounts to 60 m (less often 80 or 100 m). In all other cases, it is apparently masked by the dead zone. According to this approach, the average height of the surface layer is probably a little less than 50 m, which is close to the estimate obtained from the logarithmic distribution of wind velocity with height in this layer. The daily variation of the surface air layer height is noted by the largest values in the afternoon (80–100 m in summer under conditions of prevailing unstable stratification and 60–80 m in winter) and the smallest ones (less than 40 m) in the late evening and at night in summer and from evening to noon in winter.</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"43 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140934289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Role of Ionizing Radiation in the Biosphere and Human Evolution 电离辐射在生物圈和人类进化中的作用

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-03-20 DOI: 10.1134/s0001433823110105

A. V. Manankov

Abstract—

Natural radiation is an integral component and obligatory factor in the self-development of the biosphere. There are two sources of natural radiation on Earth: radioactive elements in minerals of the Earth’s crust and inner geospheres and radiation belts, the existence of which was established in the late 1950s. The coevolution of living objects with natural factors, including ionizing radiation, occurs according to the mechanism of homeostatic self-regulation with the participation of negative feedback. Outside the zone of homeostasis, any living species falls into supercritical zones with positive feedbacks, where deviations from a stable state can become irreversible. The effect of ionizing radiation on biological objects has not been sufficiently studied, which is why existing radiation safety standards still do not take into account positive feedback. The author believes that it is necessary to develop a modern unified concept of radiation gene-natural coevolution, in which the radioecogeochemical law of nature, implemented through the periodic-rhythmic evolution of the biosphere, is substantiated from the position of system analysis. In other words, it is proposed to introduce the radiation factor into the prevailing Lamarck–Darwin theory of anthropogenesis as the main driving force. Spatiotemporal coincidence was established between the powerful geodynamic activity of the East African Rift, the operation of a natural nuclear reactor in the area of the Oklo uranium deposit (Gabon), and discharge from our humanoid ancestor—Australopithecus africanus, or afarensis. The article discusses some specific features of human genealogy under conditions of prolonged natural radiation. The dominant role of implicit memory in the awareness of ego stress in the formation of radiophobia is shown. The new direction, undoubtedly, should contribute to solving topical applied issues related to increasing safety in the construction of nuclear industry structures, overcoming radiophobia, increasing the radioresistance of ethnic groups, and optimizing of the regulatory framework of ROSATOM and the IAEA in the field of nuclear energy use.

摘要--天然辐射是生物圈自我发展不可或缺的组成部分和必备因素。地球上的天然辐射有两个来源：地壳和内地球圈矿物中的放射性元素以及辐射带，辐射带的存在于 20 世纪 50 年代末被确定。生物与自然因素（包括电离辐射）的共同进化是在负反馈的参与下，根据平衡自我调节机制进行的。在平衡区之外，任何生物物种都会陷入具有正反馈的超临界区，在那里，偏离稳定状态会变得不可逆转。电离辐射对生物物体的影响尚未得到充分研究，这也是现行辐射安全标准仍未考虑正反馈的原因。作者认为，有必要建立辐射基因-自然协同进化的现代统一概念，从系统分析的立场出发，通过生物圈的周期性-节律性进化来证实自然界的辐射地球化学规律。换句话说，建议将辐射因素作为主要驱动力引入现行的拉马克-达尔文人类起源理论。东非大裂谷强大的地球动力活动、Oklo 铀矿（加蓬）地区天然核反应堆的运行以及类人猿祖先--澳大利亚非洲类人猿（或称非洲人猿）的排出之间的时空巧合被确定下来。文章讨论了在长期自然辐射条件下人类谱系的一些具体特征。内隐记忆在形成辐射恐惧症的自我压力意识中起着主导作用。毫无疑问，这一新方向将有助于解决与提高核工业结构建设的安全性、克服辐射恐惧症、提高种族群体的抗辐射能力以及优化俄罗斯原子能机构和国际原子能机构在核能利用领域的监管框架有关的应用问题。

{"title":"The Role of Ionizing Radiation in the Biosphere and Human Evolution","authors":"A. V. Manankov","doi":"10.1134/s0001433823110105","DOIUrl":"https://doi.org/10.1134/s0001433823110105","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000<b>Abstract</b>—</h3><p>Natural radiation is an integral component and obligatory factor in the self-development of the biosphere. There are two sources of natural radiation on Earth: radioactive elements in minerals of the Earth’s crust and inner geospheres and radiation belts, the existence of which was established in the late 1950s. The coevolution of living objects with natural factors, including ionizing radiation, occurs according to the mechanism of homeostatic self-regulation with the participation of negative feedback. Outside the zone of homeostasis, any living species falls into supercritical zones with positive feedbacks, where deviations from a stable state can become irreversible. The effect of ionizing radiation on biological objects has not been sufficiently studied, which is why existing radiation safety standards still do not take into account positive feedback. The author believes that it is necessary to develop a modern unified concept of radiation gene-natural coevolution, in which the radioecogeochemical law of nature, implemented through the periodic-rhythmic evolution of the biosphere, is substantiated from the position of system analysis. In other words, it is proposed to introduce the radiation factor into the prevailing Lamarck–Darwin theory of anthropogenesis as the main driving force. Spatiotemporal coincidence was established between the powerful geodynamic activity of the East African Rift, the operation of a natural nuclear reactor in the area of the Oklo uranium deposit (Gabon), and discharge from our humanoid ancestor—Australopithecus africanus, or afarensis. The article discusses some specific features of human genealogy under conditions of prolonged natural radiation. The dominant role of implicit memory in the awareness of ego stress in the formation of radiophobia is shown. The new direction, undoubtedly, should contribute to solving topical applied issues related to increasing safety in the construction of nuclear industry structures, overcoming radiophobia, increasing the radioresistance of ethnic groups, and optimizing of the regulatory framework of ROSATOM and the IAEA in the field of nuclear energy use.</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"3 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140200366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of the Structure of Metasandstones Using Broadband Acoustic Spectroscopy with a Laser Source of Ultrasound 利用激光超声源的宽带声学光谱学研究元青石的结构

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-03-20 DOI: 10.1134/s0001433823110038

N. B. Podymova, A. V. Ponomarev, Yu. A. Morozov, M. A. Matveev, V. B. Smirnov, I. V. Sharychev

Abstract

The results of measuring the frequency dependences of the attenuation coefficient and phase velocity of longitudinal ultrasonic waves in metasandstone samples with varying degrees of deformation–metamorphic alteration are presented to study the influence of the sample structure on these acoustic characteristics. The measurements are performed using broadband acoustic spectroscopy with a laser source of ultrasound and piezoelectric detection of nanosecond ultrasonic pulses in the 1–70 MHz operating frequency range. The metasandstones of the zonally metamorphosed Ladoga Group of the Paleoproterozoic Baltic Shield are studied, which exhibit varying degrees of structural and textural changes that occurred in the temperature range of 400–600°С. Cores of two different thicknesses with a similar mineral phase composition, but with some variations in the structural and textural composition of the substrate, were selected at four sampling points of different temperature levels and studied. For metasandstones from three sampling points, the frequency dependences of the attenuation coefficient and phase velocity of longitudinal ultrasonic waves almost completely coincide in three zones of each core and are nearly the same for cores of two different thicknesses. The latter fact confirms the reliability of the results of the ultrasonic studies, and the coincidence of the results for three different zones of each core shows that the structure of these metasandstones is uniform. The attenuation coefficient and phase velocity of ultrasound considerably differ in the studied zones of two metasandstone cores in one of the four sampling points (LV1246) due to the significant nonuniformity of their structure. In addition, for metasandstones from different sampling points, a difference in the absolute values of the attenuation coefficient and phase velocity of ultrasound is found in the entire studied frequency range. The Rayleigh model of ultrasonic scattering is used to estimate the maximum grain sizes in the studied samples. The results correlate with data obtained using optical microscopy of thin sections of all samples. The implemented broadband acoustic spectroscopy method with a laser source of ultrasound can help to reveal the relationship between the frequency dependences of the attenuation coefficient and phase velocity of longitudinal ultrasonic waves, the characteristic features of the structure, and conditions for the formation of metasandstones in each specific deposit.

摘要介绍了不同变形变质程度的元砂岩样品中纵向超声波的衰减系数和相位速度的频率相关性测量结果，以研究样品结构对这些声学特性的影响。测量采用宽带声学光谱法，使用激光超声源和压电检测纳秒级超声脉冲，工作频率范围为 1-70 MHz。研究对象是古近代波罗的海地盾拉多加组带变质的元砂岩，这些元砂岩在 400-600°С 的温度范围内发生了不同程度的结构和纹理变化。在不同温度水平的四个取样点选取了矿物相组成相似，但基质结构和纹理组成存在一些变化的两种不同厚度的岩芯进行研究。对于来自三个取样点的玄武岩，纵向超声波的衰减系数和相位速度的频率依赖关系在每个岩芯的三个区域几乎完全重合，并且对于两种不同厚度的岩芯几乎相同。后一个事实证实了超声波研究结果的可靠性，每个岩芯三个不同区域的结果一致，说明这些玄武岩的结构是均匀的。在四个取样点之一（LV1246）的两个元砂岩岩芯的研究区域内，超声波的衰减系数和相位速度存在很大差异，这是因为它们的结构明显不均匀。此外，对于不同取样点的玄武岩，在整个研究频率范围内，超声衰减系数和相位速度的绝对值也存在差异。超声波散射的瑞利模式用于估算所研究样本中的最大晶粒尺寸。结果与使用光学显微镜对所有样品的薄片所获得的数据相关。利用激光超声源实施的宽带声学光谱法有助于揭示纵向超声波的衰减系数和相位速度的频率依赖关系、结构特征以及每个特定矿床中元砂石的形成条件。

{"title":"Study of the Structure of Metasandstones Using Broadband Acoustic Spectroscopy with a Laser Source of Ultrasound","authors":"N. B. Podymova, A. V. Ponomarev, Yu. A. Morozov, M. A. Matveev, V. B. Smirnov, I. V. Sharychev","doi":"10.1134/s0001433823110038","DOIUrl":"https://doi.org/10.1134/s0001433823110038","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results of measuring the frequency dependences of the attenuation coefficient and phase velocity of longitudinal ultrasonic waves in metasandstone samples with varying degrees of deformation–metamorphic alteration are presented to study the influence of the sample structure on these acoustic characteristics. The measurements are performed using broadband acoustic spectroscopy with a laser source of ultrasound and piezoelectric detection of nanosecond ultrasonic pulses in the 1–70 MHz operating frequency range. The metasandstones of the zonally metamorphosed Ladoga Group of the Paleoproterozoic Baltic Shield are studied, which exhibit varying degrees of structural and textural changes that occurred in the temperature range of 400–600°С. Cores of two different thicknesses with a similar mineral phase composition, but with some variations in the structural and textural composition of the substrate, were selected at four sampling points of different temperature levels and studied. For metasandstones from three sampling points, the frequency dependences of the attenuation coefficient and phase velocity of longitudinal ultrasonic waves almost completely coincide in three zones of each core and are nearly the same for cores of two different thicknesses. The latter fact confirms the reliability of the results of the ultrasonic studies, and the coincidence of the results for three different zones of each core shows that the structure of these metasandstones is uniform. The attenuation coefficient and phase velocity of ultrasound considerably differ in the studied zones of two metasandstone cores in one of the four sampling points (LV1246) due to the significant nonuniformity of their structure. In addition, for metasandstones from different sampling points, a difference in the absolute values of the attenuation coefficient and phase velocity of ultrasound is found in the entire studied frequency range. The Rayleigh model of ultrasonic scattering is used to estimate the maximum grain sizes in the studied samples. The results correlate with data obtained using optical microscopy of thin sections of all samples. The implemented broadband acoustic spectroscopy method with a laser source of ultrasound can help to reveal the relationship between the frequency dependences of the attenuation coefficient and phase velocity of longitudinal ultrasonic waves, the characteristic features of the structure, and conditions for the formation of metasandstones in each specific deposit.</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"23 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140200210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of Modern Communication Technologies during Earthquakes: How to Increase the Efficiency of Macroseismic Data Collection 地震期间使用现代通信技术：如何提高宏观地震数据收集的效率

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-03-18 DOI: 10.1134/s0001433823100067

O. F. Lukhneva, Ya. B. Radziminovich, A. V. Novopashina, A. V. Kadetova

Abstract

Currently, macroseismic data are mostly obtained through online questionnaires posted on the websites of regional and international seismological agencies. Generally, strong earthquakes lead to a large number of users attempting to access the sites, which often leads to server overloads, the disruption of normal access to seismological sites, and, as a result, a sharp decrease in the efficiency of collecting macroseismic data through online questionnaires. In such cases, the only way to make up for the lack of macroseismic data is to directly ask residents to share their observations and fill out an online questionnaire. The use of instant messaging apps seems to be the best way, because they provide wide coverage and high speeds. The efficiency of this method has been confirmed during two relatively strong earthquakes in the Baikal region (September 21, 2020, M_w = 5.6, and June 8, 2022, M_w = 5.2), which were accompanied by the website crashing. Sending requests to earthquake eyewitnesses via the Viber instant messaging app made it possible to increase the number of responses by 5–8 times.

摘要目前，宏观地震数据大多是通过区域和国际地震机构网站上发布的在线问卷获得的。一般来说，强震会导致大量用户试图访问网站，这往往会导致服务器超载，地震网站的正常访问中断，从而导致通过在线问卷收集宏观地震数据的效率急剧下降。在这种情况下，弥补宏观地震数据不足的唯一办法就是直接要求居民分享他们的观测结果并填写在线问卷。使用即时通讯应用程序似乎是最好的方法，因为它们覆盖面广、速度快。在贝加尔湖地区发生的两次相对较强的地震（2020 年 9 月 21 日，Mw = 5.6；2022 年 6 月 8 日，Mw = 5.2）中，这种方法的效率得到了证实，同时网站也出现了崩溃。通过 Viber 即时通讯应用程序向地震目击者发送请求，使回复数量增加了 5-8 倍。

{"title":"Use of Modern Communication Technologies during Earthquakes: How to Increase the Efficiency of Macroseismic Data Collection","authors":"O. F. Lukhneva, Ya. B. Radziminovich, A. V. Novopashina, A. V. Kadetova","doi":"10.1134/s0001433823100067","DOIUrl":"https://doi.org/10.1134/s0001433823100067","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Currently, macroseismic data are mostly obtained through online questionnaires posted on the websites of regional and international seismological agencies. Generally, strong earthquakes lead to a large number of users attempting to access the sites, which often leads to server overloads, the disruption of normal access to seismological sites, and, as a result, a sharp decrease in the efficiency of collecting macroseismic data through online questionnaires. In such cases, the only way to make up for the lack of macroseismic data is to directly ask residents to share their observations and fill out an online questionnaire. The use of instant messaging apps seems to be the best way, because they provide wide coverage and high speeds. The efficiency of this method has been confirmed during two relatively strong earthquakes in the Baikal region (September 21, 2020, <i>M</i><sub>w</sub> = 5.6, and June 8, 2022, <i>M</i><sub>w</sub> = 5.2), which were accompanied by the website crashing. Sending requests to earthquake eyewitnesses via the Viber instant messaging app made it possible to increase the number of responses by 5–8 times.</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"27 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140170660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Russian Research in Atmospheric Sciences and Meteorology in 2019–2022 2019-2022 年俄罗斯大气科学和气象学研究

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-03-10 DOI: 10.1134/s0001433823150094

I. I. Mokhov

Abstract

Once every four years, the Section of Meteorology and Atmospheric Sciences (SMAS) of the National Geophysical Committee prepares a review of the main results of Russian research for the General Assembly of the International Union of Geodesy and Geophysics (IUGG), which includes the International Association of Meteorology and Atmospheric Sciences (IAMAS) and seven other international associations: the International Association of Cryospheric Sciences (IACS), the International Association of Geodesy (IAG), the International Association of Geomagnetism and Aeronomy (IAGA), the International Association of Hydrological Sciences (IAHS), the International Association of Physical Sciences of the Ocean (IAPSO), the International Association of Seismology and Physics of the Earth’s Interior (IASPEI), and the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI). The latest SMAS review, based on the results of Russian research in the field of atmospheric sciences and meteorology and published in 2019–2022, was prepared for the 28th IUGG General Assembly (July 11–20, 2023, Berlin, Germany) (Russian National Report, 2023).

国际大地测量和地球物理学联合会（IUGG）包括国际气象学和大气科学协会（IAMAS）以及其他七个国际协会：国际大地测量和地球物理联合会（IUGG）包括国际气象学和大气科学协会（IAMAS）以及其他七个国际协会：国际冰冻圈科学协会（IACS）、国际大地测量协会（IAG）、国际地磁和航空航天协会（IAGA）、国际水文科学协会（IAHS）、国际海洋物理科学协会（IAPSO）、国际地震学和地球内部物理学协会（IASPEI）以及国际火山学和地球内部化学协会（IAVCEI）。根据俄罗斯在大气科学和气象学领域的研究成果，为国际大地测量和地球物理学联合会第28届大会（2023年7月11日至20日，德国柏林）编写了2019-2022年出版的最新SMAS审查报告（《俄罗斯国家报告》，2023年）。

{"title":"Russian Research in Atmospheric Sciences and Meteorology in 2019–2022","authors":"I. I. Mokhov","doi":"10.1134/s0001433823150094","DOIUrl":"https://doi.org/10.1134/s0001433823150094","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Once every four years, the Section of Meteorology and Atmospheric Sciences (SMAS) of the National Geophysical Committee prepares a review of the main results of Russian research for the General Assembly of the International Union of Geodesy and Geophysics (IUGG), which includes the International Association of Meteorology and Atmospheric Sciences (IAMAS) and seven other international associations: the International Association of Cryospheric Sciences (IACS), the International Association of Geodesy (IAG), the International Association of Geomagnetism and Aeronomy (IAGA), the International Association of Hydrological Sciences (IAHS), the International Association of Physical Sciences of the Ocean (IAPSO), the International Association of Seismology and Physics of the Earth’s Interior (IASPEI), and the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI). The latest SMAS review, based on the results of Russian research in the field of atmospheric sciences and meteorology and published in 2019–2022, was prepared for the 28th IUGG General Assembly (July 11–20, 2023, Berlin, Germany) (Russian National Report, 2023).</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"16 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140099194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Russian Studies of Atmospheric Ozone and Its Precursors in 2019–2022 2019-2022 年俄罗斯大气臭氧及其前体研究

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-03-10 DOI: 10.1134/s0001433823150021

V. V. Andreev, O. E. Bazhenov, B. D. Belan, P. N. Vargin, A. N. Gruzdev, N. F. Elansky, G. S. Zhamsueva, A. S. Zayakhanov, S. N. Kotelnikov, I. N. Kuznetsova, M. Yu. Kulikov, A. V. Nevzorov, V. A. Obolkin, O. V. Postylyakov, E. V. Rozanov, A. I. Skorokhod, A. A. Solomatnikova, E. V. Stepanov, Yu. M. Timofeev, A. M. Feigin, T. V. Khodzher

Abstract

We present the most significant results of Russian scientists in the field of atmospheric ozone research for 2019–2022 and examine observations of tropospheric ozone, its distribution and variability on the territory of the Russian Federation, its relation with atmospheric parameters, modeling of formation processes, and its impact on public health. The state of stratospheric ozone over Russia, modeling of processes in the ozonosphere, and methods and instruments being developed are also analyzed. The review is a part of Russia’s national report on meteorology and atmospheric sciences, which was prepared for the International Association of Meteorology and Atmospheric Sciences (IAMAS). It has been reviewed and approved at the 28th General Assembly of the International Union of Geodesy and Geophysics (IUGG).

摘要我们介绍了俄罗斯科学家 2019-2022 年在大气臭氧研究领域取得的最重要成果，并研究了对流层臭氧的观测结果、其在俄罗斯联邦境内的分布和变化情况、其与大气参数的关系、形成过程的建模及其对公众健康的影响。此外，还分析了俄罗斯上空平流层臭氧的状况、臭氧层过程建模以及正在开发的方法和仪器。该评论是俄罗斯气象学和大气科学国家报告的一部分，是为国际气象学和大气科学协会（IAMAS）编写的。国际大地测量和地球物理学联合会（IUGG）第 28 届大会已审查并批准了该报告。

{"title":"Russian Studies of Atmospheric Ozone and Its Precursors in 2019–2022","authors":"V. V. Andreev, O. E. Bazhenov, B. D. Belan, P. N. Vargin, A. N. Gruzdev, N. F. Elansky, G. S. Zhamsueva, A. S. Zayakhanov, S. N. Kotelnikov, I. N. Kuznetsova, M. Yu. Kulikov, A. V. Nevzorov, V. A. Obolkin, O. V. Postylyakov, E. V. Rozanov, A. I. Skorokhod, A. A. Solomatnikova, E. V. Stepanov, Yu. M. Timofeev, A. M. Feigin, T. V. Khodzher","doi":"10.1134/s0001433823150021","DOIUrl":"https://doi.org/10.1134/s0001433823150021","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>We present the most significant results of Russian scientists in the field of atmospheric ozone research for 2019–2022 and examine observations of tropospheric ozone, its distribution and variability on the territory of the Russian Federation, its relation with atmospheric parameters, modeling of formation processes, and its impact on public health. The state of stratospheric ozone over Russia, modeling of processes in the ozonosphere, and methods and instruments being developed are also analyzed. The review is a part of Russia’s national report on meteorology and atmospheric sciences, which was prepared for the International Association of Meteorology and Atmospheric Sciences (IAMAS). It has been reviewed and approved at the 28th General Assembly of the International Union of Geodesy and Geophysics (IUGG).</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"115 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140099216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predicting Gold–Silver Mineralization within the Pepenveemskii Ore Zone of the Chukchi Peninsula Based on Resurs, Kanopus, and ASTER Space Imagery 根据Resurs、Kanopus和ASTER空间图像预测楚科奇半岛Pepenveemskii矿区的金银成矿作用

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-02-20 DOI: 10.1134/s0001433823120149

G. A. Milovsky, A. A. Kirsanov, K. L. Lipiyainen, A. D. Aparin

Abstract

When decoding space sensing materials of the eastern part of the Chukchi Peninsula on a scale of 1 : 50 000, structural elements of tectonic–volcanogenic genesis are identified, represented by linear, arc, ring, zonal–concentric structural elements of various ranks. Ring structures up to 2 km in diameter and the faults cutting them, predominantly of northeastern and submeridional strike, control the localization of gold mineralization in the Pepenveemskii ore–placer zone. Based on the computer processing of ASTER IR space surveys in the Pepenveemskii zone, areas of development of hydrothermally altered rocks (berezites, secondary quartzites, and sericite–hydromica–quartz metasomatites) genetically associated with mineralization are identified. The use of high-resolution satellite imaging in combination with geophysical data has made it possible, on a scale of 1 : 10 000, to identify gold-prospective areas associated with volcano–dome structures, which are characterized by an increased density of lineaments and are associated with the formation of subvolcanic rhyolites.

摘要在对楚科奇半岛东部的空间传感材料进行 1 : 50 000 比例尺解码时，确定了构造-火山成因的结构元素，这些元素由不同等级的线形、弧形、环形、带状-同心圆结构元素代表。直径达 2 千米的环状构造及其切割断层（主要为东北走向和水下走向）控制着佩彭韦姆斯基矿采空区金矿的定位。根据对 Pepenveemskii 区 ASTER 红外空间勘测的计算机处理，确定了与矿化有遗传关联的热液蚀变岩（闪长岩、次生石英岩和绢云母-水云母-石英变质岩）的发育区域。利用高分辨率卫星成像与地球物理数据相结合，可以在 1:10 000 的比例尺上确定与火山穹隆结构相关的金矿远景区，这些地区的特点是线状体密度增加，与次火山流纹岩的形成有关。

{"title":"Predicting Gold–Silver Mineralization within the Pepenveemskii Ore Zone of the Chukchi Peninsula Based on Resurs, Kanopus, and ASTER Space Imagery","authors":"G. A. Milovsky, A. A. Kirsanov, K. L. Lipiyainen, A. D. Aparin","doi":"10.1134/s0001433823120149","DOIUrl":"https://doi.org/10.1134/s0001433823120149","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>When decoding space sensing materials of the eastern part of the Chukchi Peninsula on a scale of 1 : 50 000, structural elements of tectonic–volcanogenic genesis are identified, represented by linear, arc, ring, zonal–concentric structural elements of various ranks. Ring structures up to 2 km in diameter and the faults cutting them, predominantly of northeastern and submeridional strike, control the localization of gold mineralization in the Pepenveemskii ore–placer zone. Based on the computer processing of ASTER IR space surveys in the Pepenveemskii zone, areas of development of hydrothermally altered rocks (berezites, secondary quartzites, and sericite–hydromica–quartz metasomatites) genetically associated with mineralization are identified. The use of high-resolution satellite imaging in combination with geophysical data has made it possible, on a scale of 1 : 10 000, to identify gold-prospective areas associated with volcano–dome structures, which are characterized by an increased density of lineaments and are associated with the formation of subvolcanic rhyolites.</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140885151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geoinformation Analysis of the Impact of State Protective Forest Belts on the Productivity of Agricultural Land 国家防护林带对农田生产力影响的地理信息分析

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-02-20 DOI: 10.1134/s0001433823120241

A. A. Vypritskiy, V. G. Yuferev

Abstract—

Determining the patterns of changes in the productivity of agricultural land in different growing areas in the zone of influence of State Protective Forest Belts (SPFB) is relevant due to the need to assess the future crop yield in fields with differences in geomorphological, soil, and climatic conditions in the research area. The object was to study the sowing of winter grain crops in fields mixed within the influence of State Protective Forest Belts. Materials and methods involved a research methodology based on the geoinformation analysis of the results of the decryption of actual satellite images, both to identify the distribution of cultivated fields located in the zone of influence of SPFB, and the state of crops on them. At the same time, the soil zonality of the research area was taken into account in view of the considerable length of forest strips. The assessment of the condition of winter grain crops as they move away from the planting was carried out using the NDVI vegetation index calculated from the high-resolution spectral channels of satellite images. Results and conclusions: based on the results of the research, a database of spatial data of the processed fields has been compiled. The grouping of fields was carried out both according to the similarity of the conditions of the places of cultivation of crops and by agricultural crops. Their placement and geomorphological parameters have been established. With the use of geoinformation technologies for groups of fields using statistical processing tools, the average values of the width and area of the selected zones of influence, as well as terrain parameters, were determined. During geoinformation mapping, data on the state of crops at the end of May were obtained based on the change in the NDVI index by field groupings in the zone of SPFB impact. These data are the basis for the forecast of crop yields, taking into account the spatial location of fields.

摘要--确定国家防护林带（SPFB）影响区内不同种植区农田生产力的变化规律具有重要意义，因为需要评估研究区内地貌、土壤和气候条件不同的田地的未来作物产量。目的是研究在国家防护林带影响范围内的混交田中播种冬季粮食作物的情况。材料和方法包括基于实际卫星图像解密结果的地理信息分析的研究方法，既要确定位于国家防护林带影响区内的耕地分布，又要确定耕地上的作物状况。同时，鉴于林带的长度相当大，还考虑到了研究区域的土壤地带性。利用卫星图像的高分辨率光谱通道计算出的 NDVI 植被指数，对冬季粮食作物远离种植区的状况进行了评估。结果和结论：根据研究结果，编制了已处理田块的空间数据数据库。根据农作物种植地条件的相似性和农作物进行了田地分组。它们的位置和地貌参数已经确定。通过使用统计处理工具对田地进行分组的地理信息技术，确定了选定影响区的宽度和面积的平均值以及地形参数。在绘制地理信息地图期间，根据 SPFB 影响区内各田块组的 NDVI 指数变化，获得了 5 月底作物状况的数据。这些数据是预测作物产量的基础，同时考虑到了田块的空间位置。

{"title":"Geoinformation Analysis of the Impact of State Protective Forest Belts on the Productivity of Agricultural Land","authors":"A. A. Vypritskiy, V. G. Yuferev","doi":"10.1134/s0001433823120241","DOIUrl":"https://doi.org/10.1134/s0001433823120241","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract—</h3><p>Determining the patterns of changes in the productivity of agricultural land in different growing areas in the zone of influence of State Protective Forest Belts (SPFB) is relevant due to the need to assess the future crop yield in fields with differences in geomorphological, soil, and climatic conditions in the research area. The object was to study the sowing of winter grain crops in fields mixed within the influence of State Protective Forest Belts. Materials and methods involved a research methodology based on the geoinformation analysis of the results of the decryption of actual satellite images, both to identify the distribution of cultivated fields located in the zone of influence of SPFB, and the state of crops on them. At the same time, the soil zonality of the research area was taken into account in view of the considerable length of forest strips. The assessment of the condition of winter grain crops as they move away from the planting was carried out using the NDVI vegetation index calculated from the high-resolution spectral channels of satellite images. Results and conclusions: based on the results of the research, a database of spatial data of the processed fields has been compiled. The grouping of fields was carried out both according to the similarity of the conditions of the places of cultivation of crops and by agricultural crops. Their placement and geomorphological parameters have been established. With the use of geoinformation technologies for groups of fields using statistical processing tools, the average values of the width and area of the selected zones of influence, as well as terrain parameters, were determined. During geoinformation mapping, data on the state of crops at the end of May were obtained based on the change in the NDVI index by field groupings in the zone of SPFB impact. These data are the basis for the forecast of crop yields, taking into account the spatial location of fields.</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"51 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140884938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using the Landsat-8 Data Set and Shuttle Radar Topography Mission Digital Terrain Model for Gold–Polymetallic Mineralization Prediction on the Territory of the Central Part of the Malouralskaya Zone, the Polar Urals 利用大地遥感卫星 8 号数据集和穿梭雷达地形图任务数字地形模型预测极地乌拉尔马卢拉斯卡亚区中部地区的金多金属矿化情况

IF 0.7 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics

Pub Date : 2024-02-20 DOI: 10.1134/s0001433823120125

Yu. N. Ivanova, I. O. Nafigin

Abstract

For the first time, we apply a new approach to processing earth remote sensing data obtained by the Landsat-8 spacecraft to the central part of the Maloyralskaya zone, the Polar Urals. It consists of integrating metasomatic alteration distribution maps and lineament density patterns that were created based on the results of statistical processing of remote sensing data and the Shuttle Radar Topography Mission (SRTM) digital elevation model. This study is aimed at identifying morphological features and patterns and features of the deep structure and at identifying areas promising for the gold-polymetallic type of mineralization in the studied area. As a result of the study, it is established that areas promising for the gold–polymetallic type of mineralization in the central part of the Maloyralskaya zone are localized along transregional fault zones that intersect favorable horizons and structures and control ore mineralization and within large morphostructures complicated by radial faults of the first-order NE and NW direction with a length of up to 30 km, as well as areas with increased indices of iron oxides (II and III) and, less often, hydroxide (Al–OH and Mg–OH) and carbonate-containing minerals.

摘要我们首次在极地乌拉尔的 Maloyralskaya 区中部采用了处理大地遥感数据的新方法。该方法包括将根据遥感数据统计处理结果和航天飞机雷达地形图任务（SRTM）数字高程模型绘制的元气蚀变分布图和线状密度模式进行整合。这项研究的目的是确定深部结构的形态特征、模式和特征，并确定研究区域内有可能出现金多金属矿化的区域。研究结果表明，马洛亚拉尔斯卡亚区中部有望形成金多金属矿化的地区位于与有利地层和构造相交并控制矿石成矿的跨区域断层带沿线，以及由长度达 30 千米的东北一阶和西北一阶径向断层构成的复杂大型形态构造内部、以及铁氧化物（II 和 III）指数增加的地区，以及氢氧化物（Al-OH 和 Mg-OH）和含碳酸盐矿物指数较低的地区。

{"title":"Using the Landsat-8 Data Set and Shuttle Radar Topography Mission Digital Terrain Model for Gold–Polymetallic Mineralization Prediction on the Territory of the Central Part of the Malouralskaya Zone, the Polar Urals","authors":"Yu. N. Ivanova, I. O. Nafigin","doi":"10.1134/s0001433823120125","DOIUrl":"https://doi.org/10.1134/s0001433823120125","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>For the first time, we apply a new approach to processing earth remote sensing data obtained by the Landsat-8 spacecraft to the central part of the Maloyralskaya zone, the Polar Urals. It consists of integrating metasomatic alteration distribution maps and lineament density patterns that were created based on the results of statistical processing of remote sensing data and the Shuttle Radar Topography Mission (SRTM) digital elevation model. This study is aimed at identifying morphological features and patterns and features of the deep structure and at identifying areas promising for the gold-polymetallic type of mineralization in the studied area. As a result of the study, it is established that areas promising for the gold–polymetallic type of mineralization in the central part of the Maloyralskaya zone are localized along transregional fault zones that intersect favorable horizons and structures and control ore mineralization and within large morphostructures complicated by radial faults of the first-order NE and NW direction with a length of up to 30 km, as well as areas with increased indices of iron oxides (II and III) and, less often, hydroxide (Al–OH and Mg–OH) and carbonate-containing minerals.</p>","PeriodicalId":54911,"journal":{"name":"Izvestiya Atmospheric and Oceanic Physics","volume":"282 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139924170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0