scholarly journals Surface Deformation Analysis of the Wider Zagreb Area (Croatia) with Focus on the Kašina Fault, Investigated with Small Baseline InSAR Observations

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 4857 ◽  
Author(s):  
Marin Govorčin ◽  
Boško Pribičević ◽  
Shimon Wdowinski
Keyword(s):  
Seismic Activity ◽  
Surface Deformation ◽  
Deformation Analysis ◽  
Strain Accumulation ◽  
The North ◽  
Period 1880 ◽  
The Republic ◽  
Zagreb Area ◽  
Small Baseline ◽  
Good Agreement

The wider Zagreb area is considered one of the few seismically active areas in the Republic of Croatia. During the period 1880–1906, moderate to strong seismic activity with three earthquakes magnitude M L ≥ 6 occurred on the NW-SE striking Kašina Fault and since then, the area has not experienced earthquakes exceeding magnitude M L = 5 . In order to estimate the ongoing interseismic strain accumulation along the fault, we analyze Advanced Land Observing Satellite (ALOS) Phased Array L-band SAR (PALSAR) and Environmental Satellite (Envisat)-Advanced Synthetic Aperture Radar (ASAR) datasets acquired over the period 2007–2010 and 2002–2010, respectively. The data were analyzed using small baseline interferometry (SBI) technique and indicate very slow surface deformations in the area, within ±3.5 mm/year, which are in a good agreement with previous geodetic studies. Interseismic strain accumulation analysis was conducted on two 14 km long segments of the Kašina Fault, seismically active in the South and stable in the North. The analysis indicates an ongoing interseismic strain accumulation of 2.3 mm/year on the Southern segment and no detectable strain accumulation on the Northern segment. Taking into consideration the lack of moderate to strong seismic activity in the past 113 years combined with the preliminary geodetic analysis from this study, we can conclude that the Southern segment of the Kašina Fault has the potential to generate earthquake magnitude M w < 6.

An Overview of the Small BAseline Subset Algorithm: a DInSAR Technique for Surface Deformation Analysis

2007 ◽  
Vol 164 (4) ◽  
pp. 637-661 ◽  
Author(s):  
Riccardo Lanari ◽  
Francesco Casu ◽  
Mariarosaria Manzo ◽  
Giovanni Zeni ◽  
Paolo Berardino ◽  
...  
Keyword(s):  
Surface Deformation ◽  
Deformation Analysis ◽  
Small Baseline Subset ◽  
Small Baseline

scholarly journals InSAR Technique Applied to the Monitoring of the Qinghai-Tibet Railway

2018 ◽  
Author(s):  
Qingyun Zhang ◽  
Yongsheng Li ◽  
Jingfa Zhang ◽  
Yi Luo
Keyword(s):  
Surface Deformation ◽  
Ground Deformation ◽  
Full Rank ◽  
Tibet Plateau ◽  
Geological Hazards ◽  
The North ◽  
Subsidence Area ◽  
Rank Matrix ◽  
Before And After ◽  
Small Baseline

Abstract. The Qinghai-Tibet Railway is located on the Qinghai-Tibet Plateau and is the highest altitude railway in the world. With the influence of human activities and geological disasters, it is necessary to monitor ground deformation along the Qinghai-Tibet Railway. In this paper, Advanced Synthetic Aperture Radar (ASAR) (T405 and T133) and TerraSAR-X data were used to monitor the Lhasa-Nagqu section of the Qinghai-Tibet Railway from 2003 to 2012. The data period covers the time before and after the railway was open (total of ten years). This study used a new analysis method (the Full Rank Matrix (FRAM) Small Baseline Subset InSAR (SBAS) time-series analysis) to analyze the Qinghai-Tibet Railway. Before the opening of the railway (from 2003 to 2005), the Lhasa-Nagqu road surface deformation was not obvious; in 2007, the railway was completed and opened to traffic, and the settlement of the railway in the district of Damxung was obvious (20 mm/yr). After the opening of the railway (from 2008 to 2010), the Damxung area had a significant subsidence area, and the north section of the railway was relatively stable. By analyzing the distribution of geological hazards in the Damxung area, the distribution of the subsidence area was found to coincide with that of the geological hazards, indicating that the occurrence of subsidence in the Damxung area was related to the influence of surrounding geological hazards and faults. Overall, the peripheral surface of the Qinghai-Tibet Railway is relatively stable but still needs to be verified with real-time monitoring to ensure that the safety of the railway is maintained.

scholarly journals ARMENIA

2020 ◽  
pp. 61-67
Author(s):  
Heghine Sargsyan ◽  
Gohar Abgaryan ◽  
Edgar Mughnetsyan ◽  
Ani Gevorgyan
Keyword(s):  
Seismic Activity ◽  
Focal Mechanisms ◽  
P Wave ◽  
Seismic Stations ◽  
Macroseismic Effect ◽  
The North ◽  
The Republic ◽  
Spitak Earthquake ◽  
Focal Zone

The article describes changes in the composition and equipment of the network of seismic stations in Armenia, which ensured a representative level of earthquake registration in Armenia in 2014 with K3min=8.0. The analysis of seismicity on the territory of Armenia and neighboring regions is carried out, focal mechanisms of 17 earthquakes are determined using the signs of P-wave first arrivals at the seismic stations of Armenia and neighboring countries. Within the Republic, the highest level of seismic activity in 2014 was in the North, in the focal zone of Spitak earthquake 07.12.1988 with MLH=6.8, I0=10. The macroseismic effect of earthquakes felt in Armenia is described.

scholarly journals Characteristics of Surface Deformation in Lanzhou with Sentinel-1A TOPS

Geosciences ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 99 ◽  
Author(s):  
Yi He ◽  
Wenhui Wang ◽  
Haowen Yan ◽  
Lifeng Zhang ◽  
Youdong Chen ◽  
...  
Keyword(s):  
Land Cover ◽  
Land Surface ◽  
Surface Deformation ◽  
Image Data ◽  
Influential Factors ◽  
Deformation Analysis ◽  
Land Cover Types ◽  
Surface Deformations ◽  
The North ◽  
Geological Conditions

While surface deformations and their impact on buildings have been observed in the city of Lanzhou, it is difficult to find studies of surface deformation and the influential factors in the recent decades. This study was designed to detect the spatial position of these surface deformations and to understand the mechanism behind them. Sentinel-1A TOPS model image data acquired in descending orbits between March 2015 and May 2019 were processed by using Small Baseline Subsets Interferometry (SBAS)-Interferometric Synthetic Aperture Radar (InSAR) technology, and then compared with geology, tectonical aspects of the study area and land cover types in Lanzhou. The results reveal that the land surface deformation is uneven in this city, and seven surface deformation regions were detected in the following areas: the north freight yard, Jiuzhou, Country garden, Donggang, Yanjiaping, Zhongxinping and Liuquan town. The land surface deformation rate in Lanzhou ranges from −82.13 mm/year to 19.31 mm/year. Time-series land surface deformation analysis showed that deformation increased over time in major deformation regions. Surface deformation expansion was significant after June 2017and it continued to expand. The surface deformation of Lanzhou is affected by natural factors (geology and geological faults) and human activities (land cover types/land cover changes). Local geological conditions control the location of the surface deformation process. These findings provide compelling data and theoretical support for disaster prevention and reduction in Lanzhou.

Peculiarities of the course of the postpartum period in domestic reindeer females, its morphophysiology and behavioral reactions in the North-East of Russia (Republic of Sakha)

2020 ◽  
pp. 99-105
Author(s):  
V. Fedorov ◽  
E. Sleptsov ◽  
K. Plemyashov
Keyword(s):  
Postpartum Period ◽  
Reproductive Function ◽  
Complex Problem ◽  
Climatic Conditions ◽  
Taiga Zone ◽  
Behavioral Reactions ◽  
North East ◽  
The North ◽  
The Republic ◽  
Mountain Taiga

A growth in the number of deer and an increase in their productivity are closely related to the solution of the complex problem of reproduction and rational use of deer females. Significant damage to reindeer husbandry is caused by the barrenness of northern domestic deer, the level of which has been quite high in recent years. So, in the Republic of Sakha, on 01.01.2020, the number of domesticated reindeer was 152,068, of which female deer and heifers — 71,818, offspring per 100 females — 59, business yield amounted to 52 fawns per 100 females. The causes of infertility are very diverse, as the natural and climatic conditions of the breeding zones have a significant influence on the reproductive function of reindeer. In Yakutia, the main population of northern domestic deer is bred in mountain taiga and tundra natural-climatic zones, so there are about 55 thousand deer in the mountain taiga zone and more than 65 thousand deer in the tundra zone. In this regard, the study of the peculiarities of the postpartum period course in domestic reindeer females, its morphophysiology, and behavioral reactions depending on the natural and climatic conditions of breeding is of great importance.

Peranan Ombudsman Republik Indonesia Perwakilan Sumatera Utara Dalam Pengawasan Pelayanan Dinas Kependudukan dan Catatan Sipil Kota Medan

2019 ◽  
Vol 1 (1) ◽  
pp. 1-12
Author(s):  
Putri Ananda Sari ◽  
Abdul Kadir ◽  
Beby Mashito Batu Bara
Keyword(s):  
Service Provider ◽  
Qualitative Approach ◽  
First Report ◽  
The North ◽  
Supervision Process ◽  
The Republic ◽  
North Sumatra

This study aims to determine the role of the Ombudsman of the Republic of Indonesia in North Sumatra Representative in the Supervision of Population and Civil Registry Service in Medan City. This study uses a qualitative approach with descriptive methods describing information about the data obtained from the field in the form of written and oral data from the parties studied. Data is collected based on interviews and documentation. The results of this study indicate that the role of the Ombudsman of the Republic of Indonesia in North Sumatra was carried out in the form of external supervision. External supervision is supervision carried out by the Ombudsman of the Republic of Indonesia Representative of North Sumatra to the Medan Population and Civil Registry Service. Actions taken in the supervision process are incoming reports, follow-up of the first report and follow-up of the report. Based on the research that has been carried out, it has been concluded that the role of the Ombudsman of the Republic of Indonesia in the North Sumatra Representative in supervising the service provider of the Population and Civil Registry services is carried out in the form of external supervision. In supervising the handling of public reports of alleged poor service in the area of population administration, it has been effective, with several efforts to handle reports such as: (1) Clarification; (2) Investigation; (3) Recommendations; (4) Monitoring.

Sport and nationalism in the Republic of North Macedonia

Focaal ◽  
2019 ◽  
pp. 1-13
Author(s):  
Vasiliki P. Neofotistos
Keyword(s):  
Direct Product ◽  
Nation Building ◽  
National History ◽  
Sports Teams ◽  
The Balkans ◽  
The North ◽  
Political Forces ◽  
The Republic

Using the Republic of North Macedonia as a case study, this article analyzes the processes through which national sports teams’ losing performance acquires a broad social and political significance. I explore claims to sporting victory as a direct product of political forces in countries located at the bottom of the global hierarchy that participate in a wider system of coercive rule, frequently referred to as empire. I also analyze how public celebrations of claimed sporting victories are intertwined with nation-building efforts, especially toward the global legitimization of a particular version of national history and heritage. The North Macedonia case provides a fruitful lens through which we can better understand unfolding sociopolitical developments, whereby imaginings of the global interlock with local interests and needs, in the Balkans and beyond.

ANTHROPOGENIC AND ECONOMIC FACTORS OF THE СRIMEAN ECOLOGY

2020 ◽  
pp. 5-14
Author(s):  
N.P. Demchenko ◽  
N.Yu. Polyakova
Keyword(s):  
Business Owners ◽  
Crimean Peninsula ◽  
The North ◽  
Chemical Release ◽  
The Crimea ◽  
Russian Plant ◽  
The Republic ◽  
The Town ◽  
Integrated Indicators ◽  
The Crimean Peninsula

The situation in the ecology of the Crimean Peninsula in recent years was discussed in the article. The analysis of absolute and integrated indicators of the anthropogenic impact showed that the ecological situation remains difficult, and according to some indicators even continues to deteriorate. In summer 2018, the situation had worsened because of the large chemical release of titanium dioxide on the north of the Crimea from the holding pond of a large Russian plant that is situated near the town of Armyansk. This, in turn, led to the contamination of the large territory on the north of the peninsula. This fact indicates insufficient control by officials of the Republic of Crimea over the implementation of the RF laws for environmental protection by business owners of various forms of ownership, especially private ownership, the level of responsibility for the environment of which is very low.

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