搜索结果: 1-15 共查到“地球物理学 case study”相关记录27条 . 查询时间(0.187 秒)
COMPENSATION OF THE IONOSPHERIC EFFECTS ON SAR INTERFEROGRAM BASED ON RANGE SPLIT-SPECTRUM AND AZIMUTH OFFSET METHODS – A CASE STUDY OF YUSHU EARTHQUAKE
InSAR Ionospheric effects Range split-spectrum Azimuth offset Ionosphere correction Yushu earthquake
2018/5/14
InSAR technique can measure the surface deformation with the accuracy of centimeter-level or even millimeter and therefore has been widely used in the deformation monitoring associated with earthquake...
DEVELOPING SEISMIC INTENSITY MAPS FROM TWITTER DATA; THE CASE STUDY OF LESVOS, GREECE 2017 EARTHQUAKE: ASSESSMENTS, IMPROVEMENTS AND ENRICHMENTS ON THE METHODOLOGY
seismic intensity twitter volunteered geographic information VGI
2018/4/18
This article presents an effort to validate and further improve a previously published innovative approach for drawing macroseismic intensity maps from data extracted from sources of volunteered geogr...
DEVELOPING SEISMIC INTENSITY MAPS FROM TWITTER DATA; THE CASE STUDY OF LESVOS, GREECE 2017 EARTHQUAKE: ASSESSMENTS, IMPROVEMENTS AND ENRICHMENTS ON THE METHODOLOGY
seismic intensity twitter volunteered geographic information VGI
2018/5/8
This article presents an effort to validate and further improve a previously published innovative approach for drawing macroseismic intensity maps from data extracted from sources of volunteered geogr...
CADASTRAL POSITIONING ACCURACY IMPROVEMENT: A CASE STUDY IN MALAYSIA
Positional Accuracy Improvement Legacy Dataset Cadastral Modernization
2016/10/14
Cadastral map is a parcel-based information which is specifically designed to define the limitation of boundaries. In Malaysia, the cadastral map is under authority of the Department of Surveying and ...
DEVELOPMENT OF A TIME-DEPENDENT 3-PARAMETER HELMERT DATUM TRANSFORMATION MODEL: A CASE STUDY FOR MALAYSIA
GNSS GDM2000 Tectonic Motion Helmert Datum Transformation
2016/10/14
This paper aims to develop a time-dependent 3-parameter Helmert datum transformation model for Malaysia as a proposed solution to the current non-geocentric issue of the Geocentric Datum of Malaysia 2...
Some preliminary results of a worldwide seismicity estimation: a case study of seismic hazard evaluation in South America
Seismicity maximum observed magnitude seismic moment seismic momente rate
2015/9/30
Global data have been widely used for seismicity and seismic hazard assessment by seismologists. In the present study we evaluate worldwide seismicity in terms of maps of maximum observed magnitude (M...
Geoelectrical investigation for the assessment of groundwater conditions: a case study
electrical resistivity sounding roundwater condition Shooro Iran
2015/9/10
An electrical resistivity survey involving Vertical Electrical Soundings (VES) was carried out in the Shooro
Basin in Southeast Iran in order to study groundwater conditions such as depth, thickness ...
Preliminary study of the Gravimetric Local Geoid Model in Jordan: case study (GeoJordan Model)
Gravimetric Jordanian Geoid Model (GeoJordan) Least Square Collocation (LSC) Global Geopotential Model (GGM)
2015/9/2
Recently, there has been an increased interest in studying and defining the Local and Regional Geoid Model worldwide, due to its importance in geodetic and geophysics applications.The use of the Globa...
New constraints for site-effect characterization from seismic noise analysis in southern Italy. San Fele case study
Ambient noise Shear wave velocity profile Array measurements Seimic hazard
2015/8/28
In the framework of ground-motion amplification analysis for southern Italy, the main target of this study is to provide new constraints on one-dimensional, shallow-velocity profiles for a site in the...
Trade-off between seismic source detail and crustal heterogeneities in spherical 3D finite element modeling: a 2004 Sumatra earthquake case study
finite element method 3D modeling static deformation
2015/8/27
Finite-element methods are a powerful numerical simulation tool for modeling seismic events, as they allow three-dimensional complex models to be solved. We used a three-dimensional finite-element app...
Comparison between low-cost and traditional MEMS accelerometers: a case study from the M7.1 Darfield, New Zealand, aftershock deployment
Seismology Instruments and techniques Ground Motion Seismic Risk
2015/8/27
Recent advances in micro-electro-mechanical systems (MEMS) sensing and distributed computing techniques have enabled the development of low-cost, rapidly deployed dense seismic networks. The Quake-Cat...
A case study of detecting the triplet of 3S1 using superconducting gravimeter records with an alternative data preprocessing technique
Seismic normal mode Superconducting gravimeters data Hilbert-Huang transformation Multi-station experiment 3S1 triplet
2015/8/24
Due to their very low noise levels in the low frequency band (<1 mHz), superconducting gravimeters (SGs) are particularly suitable to observe long-period free oscillations of the Earth. This case stud...
A GIS-based application for volume estimation and spatial distribution analysis of tephra fallout: a case study of the 122 BC Etna eruption
Geographic Information System (GIS) Tephra fallout Volume estimation Etna
2015/8/18
In this study, we demonstrate the use of a geo-spatial information system for volume estimation of fallout deposits and for identification of syn-eruptive and post-eruptive depositional mechanisms. Fo...
A comparison of Landsat 8 (OLI) and Landsat 7 (ETM+) in mapping geology and visualising lineaments: A case study of central region Kenya
Band rationing False colour Combinations (FCC) Principal Component Analysis
2015/5/7
Availability of multispectral remote sensing data cheaply and its higher spectral resolution compared to remote sensing data with higher spatial resolution has proved valuable for geological mapping...
Characterization and interaction of driving factors in karst rocky desertification: a case study from Changshun, China
In the southwest ecological problems karst rocky desertification the regional sustainable development the karst environment
2015/1/6
As the most severe ecological issue in southwest China, karst rocky desertification (KRD) has both threatened and constrained regional sustainable development. Comprehensively understanding the relati...