scholarly journals Construction of Web-GIS in San'in region for integrating geophysical survey data with geotechnical information

2021 ◽  
Author(s):  
Isamu Nishimura ◽  
Tatsuya Noguchi ◽  
Takao Kagawa
Keyword(s):  
Geophysical Survey ◽  
Web Gis ◽  
Base System ◽  
Survey Analysis ◽  
Borehole Data ◽  
Web Browser ◽  
Strong Ground Motion Prediction ◽  
Geophysical Surveys ◽  
Geotechnical Information ◽  
Gis System

Abstract Constructing a database of information on geotechnical information, such as geophysical survey results and borehole data, and sharing it among researchers and practitioners will be useful for the development of subsurface research and the prevention of disasters such as earthquakes and landslides. In earthquake disaster prevention, geotechnical information is particularly important for strong ground motion prediction. The geotechnical information includes analysis results based on geophysical surveys and seismic observations, and borehole data. These databases can be displayed on a map using GIS, and the existing analysis results can be checked sequentially. This will allow us to consider new observation plans and to improve the efficiency and accuracy of the analysis of the subsurface structure model. In this study, a database of geotechnical information was constructed for the San-in region. The database of geotechnical information includes the results of microtremor and gravity survey, analysis of ground structure by seismic observation, and borehole data in Tottori and Shimane prefectures. In addition, we constructed a system to display the constructed database on a map in a web browser (Web-GIS). For the base system of the GIS, Leaflet, a Java Script library, was used to display the prepared database of geotechnical information using the GSI tiled map as the base map. The developed database and GIS system will be used to researchers and the public in the future.

scholarly journals A Reconnaissance Geophysical Survey of the Kawartha Lakes and Lake Simcoe, Ontario

2007 ◽  
Vol 47 (3) ◽  
pp. 313-323 ◽  
Author(s):  
Brian J. Todd ◽  
C. F. Michael Lewis
Keyword(s):  
Geophysical Survey ◽  
Paleozoic Rock ◽  
Lower Unit ◽  
Western Lake ◽  
Strong Reflection ◽  
Geophysical Surveys ◽  
Glacier Ice ◽  
Reflection Configuration ◽  
Lake Simcoe ◽  
Tectonic Origin

ABSTRACT A marine geophysical survey program has been conducted in lakes of southern Ontario. The survey was designed to detect neotectonic features, if they exist, and to evaluate their geological importance. High-resolution single- and multichannel seismic reflection profiling were used to delineate late- and post-glacial sedimentary strata and structures, as well as the sediment/bedrock interface, in the Kawartha Lakes and Lake Simcoe. Results show that two seismostratigraphic sequences are common within the unconsolidated overburden. The lower unit exhibits a parallel reflection configuration having strong reflection amplitudes, whereas the upper unit is acoustically transparent and overlies the lower unit conformably in some places and unconformably in others. Both units vary in thickness within lakes and from lake to lake. Typical subbottom profiles of Precambrian rock surfaces are rolling; those of Paleozoic rock surfaces are smooth. At one location in Lower Buckhorn Lake, tilted rock surfaces may be faulted but disturbance of overlying glacioge-nic sediments was not observed. In western Lake Simcoe and Kempenfelt Bay, slumping into graben-like features was observed. Also in Lake Simcoe, a diapiric feature was documented. It is speculated that these disturbances most likely result from glacier ice block melting and fluid migration. A tectonic origin, however, cannot be discounted at this stage of investigation. Additional systematic marine geophysical surveys are required in the future to map features in detail to determine whether they are of neotectonic or glaciotectonic origin.

scholarly journals IoT Based Smart Garbage Monitoring System

2019 ◽  
Author(s):  
Smitha Lingadahalli Ravi
Keyword(s):  
Monitoring System ◽  
Base System ◽  
Central System ◽  
Web Browser ◽  
Smart System ◽  
System P ◽  
Government Project

This project IOT Based Garbage MonitoringSystem is a very smart system which will help to keep ourvillage and cities. We see that in our cities public dustbinsare overloaded and it create unhygienic conditions forpeople and That place leaving a bad smell. To avoid allthese things we are Going to implement a project IOTbased garbage monitoring System. These dustbins areinterfaced with Arduino base system having ultrasonicsensor along with central system showing the Currentstatus of garbage on display and web browser HTML pagewith Wi-Fi module. To increase the cleanness in thecountry government started the various project. Thisproject is helpful for government project of “SWACHHBHARAT ABHIYAN”.

scholarly journals Method to Extend Operationability of Web-Gis Based Marine Services Using SSE Platform

2015 ◽  
Vol 22 (4) ◽  
pp. 21-26
Author(s):  
K. Drypczewski ◽  
A. Stepnowski ◽  
K. Bruniecki
Keyword(s):  
Web Service ◽  
Satellite Imagery ◽  
Fire Detection ◽  
Earth Observation ◽  
Web Gis ◽  
Service Support ◽  
Advantages And Disadvantages ◽  
New Applications ◽  
True Color ◽  
Gis System

AbstractEarth Observation (EO) products are widely used by geospatial society. Over the last years a number of new applications of satellite imagery were proposed. This led to an increased interest in EO products, not only from researchers but also from companies and individuals. The authors constitute the essential part of the team that created the marine, web-GIS system - SafeCity GIS - for dissemination of data obtained from a 1.5 metre HRPT-MetOp satellite ground receiving station. To increase the operationability of the system the authors successfully attempted to broaden the offered functionality by integration with Service Support Environment (SSE). Due to this, EO products for the Pomeranian Region are served as web-services; amongst them there are True Color imagery, meteorological, algae monitoring and fire-detection services. The authors present the created solution for web service support for GIS system based on Service Support Environment and discuss its advantages and disadvantages.

scholarly journals AUTOMATION OF MORPHOMETRIC MEASUREMENTS FOR PLANETARY SURFACE ANALYSIS AND CARTOGRAPHY

2016 ◽  
Vol XLI-B4 ◽  
pp. 431-433
Author(s):  
A. A. Kokhanov ◽  
A.Y. Bystrov ◽  
M. A. Kreslavsky ◽  
E. V. Matveev ◽  
I. P. Karachevtseva
Keyword(s):  
Web Gis ◽  
Statistical Characteristics ◽  
Shape Estimation ◽  
Topographic Roughness ◽  
Morphological Studies ◽  
Second Derivatives ◽  
Software Modules ◽  
Small Crater ◽  
Height Fields ◽  
Gis System

For automation of measurements of morphometric parameters of surface relief various tools were developed and integrated into GIS. We have created a tool, which calculates statistical characteristics of the surface: interquartile range of heights, and slopes, as well as second derivatives of height fields as measures of topographic roughness. Other tools were created for morphological studies of craters. One of them allows automatic placing of topographic profiles through the geometric center of a crater. Another tool was developed for calculation of small crater depths and shape estimation, using C++ programming language. Additionally, we have prepared tool for calculating volumes of relief features from DTM rasters. The created software modules and models will be available in a new developed web-GIS system, operating in distributed cloud environment.

scholarly journals Geophysical investigation to assess condition of grouted scour hole : Old River Control Complex—Low Sill Concordia Parish, Louisiana

2021 ◽  
Author(s):  
Janet Simms ◽  
Benjamin Breland ◽  
William Doll
Keyword(s):  
Seismic Refraction ◽  
Low Frequency ◽  
Borehole Data ◽  
Geophysical Investigation ◽  
Seismic Surveys ◽  
Geophysical Surveys ◽  
River Control ◽  
Ground Penetrating ◽  
Control Complex ◽  
Water Borne

Geophysical surveys, both land-based and water-borne, were conducted at the Old River Control Complex‒Low Sill, Concordia Parish, LA. The purpose of the surveys was to assess the condition of the grout within the scour region resulting from the 1973 flood event, including identification of potential voids within the grout. Information from the ground studies will also be used for calibration of subsequent marine geophysical data and used in stability analysis studies. The water-borne survey consisted of towed low frequency (16-80 MHz) ground penetrating radar (GPR), whereas the land-based surveys used electrical resistivity and seismic refraction. The GPR survey was conducted in the Old River Channel on the upstream side of the Low Sill structure. The high electrical conductivity of the water (~50 mS/m) precluded penetration of the GPR signal; thus, no useful data were obtained. The land-based surveys were performed on both northeast and southeast sides of the Low Sill structure. Both resistivity and seismic surveys identify a layered subsurface stratigraphy that corresponds, in general, with available borehole data and constructed geologic profiles. In addition, an anomalous area on the southeast side was identified that warrants future investigation and monitoring.

scholarly journals A New Approach to Calculate the Water Exploitation Index (WEI+)

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3227
Author(s):  
Stefano Casadei ◽  
Francesco Peppoloni ◽  
Arnaldo Pierleoni
Keyword(s):  
Web Gis ◽  
Return Flow ◽  
Freshwater Resources ◽  
New Approach ◽  
Country Level ◽  
Management Plans ◽  
Water Exploitation ◽  
Environment Agency ◽  
Gis System ◽  
Exploitation Index

The Water Exploitation Index (WEI), or withdrawal ratio, is an indicator of water scarcity, which has been updated into its WEI+ form by the Committee of Experts of the European Commission. In calculating the total abstraction of fresh water, this indicator also includes the possible return flow and management rules. The demand for freshwater and long-term freshwater resources are both necessary to calculate the WEI+. These values are not easy to assess at basin or sub-basin level and, for this reason, WEI values are generally calculated at the country level. This paper introduces a new approach to calculate the WEI+, with the purpose of extending its use to basin and sub-basin levels. The methodology is based on flow duration curve estimation, which evaluates freshwater resources, and a Web-GIS system that evaluates water abstractions distribution. This approach allows for the assessment of locally stressed areas in the hydrographic network and could provide a fundamental step toward more comprehensive regional water resources management plans. The new methodology is tested in some sub-basins of the Upper Tiber River Basin (Italy). These results contribute to the analysis of water withdrawals sustainability, based on the policy of the European Environment Agency, which is aimed toward the development of a proactive approach for reducing water stress.

Petroleum geological activities onshore West Greenland in 1997

1998 ◽  
pp. 10-17
Author(s):  
Flemming G. Christiansen ◽  
Anders Boesen ◽  
Jørgen A. Bojesen-Koefoed ◽  
Finn Dalhoff ◽  
Gregers Dam ◽  
...  
Keyword(s):  
Field Work ◽  
Early Summer ◽  
Summer Season ◽  
Project Manager ◽  
Geophysical Survey ◽  
Original Series ◽  
West Greenland ◽  
Low Level ◽  
The Third ◽  
Geophysical Surveys

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Christiansen, F. G., Boesen, A., Bojesen-Koefoed, J. A., Dalhoff, F., Dam, G., Neuhoff, P. S., Pedersen, A. K., Pedersen, G. K., Stannius, L. S., & Zinck-Jørgensen, K. (1998). Petroleum geological activities onshore West Greenland in 1997. Geology of Greenland Survey Bulletin, 180, 10-17. https://doi.org/10.34194/ggub.v180.5079 _______________ The 1997 summer season saw continued petroleum geological activities in the Disko–Nuussuaq–Svartenhuk Halvø area, onshore West Greenland. These activities mainly took the form of a geological field project led by the Geological Survey of Denmark and Greenland (GEUS), whereas the continued exploration by grønArctic Energy Inc. (grønArctic) in the third year of their licence was kept at a very low level without field work, geophysical surveys or drilling. Furthermore an airborne geophysical survey, Aeromag 1997, covering a large part of the Disko Bugt area, was carried out in the early summer of 1997 with GEUS as project manager (Stemp 1997; Stemp & Thorning 1998, this volume).

Combining traditional and geophysical soil investigation for phytoremediation planning in a hydrocarbon polluted area

2021 ◽  
Author(s):  
Chiara Ferré ◽  
Enrico Casati ◽  
Gabriele Cerutti ◽  
Rodolfo Gentili ◽  
Alberto Francioli ◽  
...  
Keyword(s):  
Aromatic Compounds ◽  
Arable Land ◽  
Chemical Properties ◽  
Soil Survey ◽  
Geophysical Survey ◽  
Soil Parameters ◽  
Heavy Hydrocarbons ◽  
Soil Map ◽  
Geostatistical Approach ◽  
Geophysical Surveys

<p>The spatial variability of hydrocarbon content and the physical and chemical properties of the soil were assessed by combining traditional soil sampling and proximal geophysical survey with the aim of planning a pilot phytoremediation experiment in an agricultural area west of Milan (Lombardy, Italy).</p><p>The area, an irrigated arable land of about 1 ha, was affected by a refined oil spillage from an underground pipeline in 2015. Contamination surveys were carried out with a continuous core drilling technique using an hydraulic probe (131 cm diameter core). Heavy (C>12) and light (C<12) alkanes and aromatic compounds (benzene, ethylbenzene, styrene, toluene and xilenes) were measured up to three meters depth. Results showed a predominance of heavy hydrocarbons (C>12) with respect to light hydrocarbons (C<12) and aromatic compounds. A map of heavy hydrocarbons soil concentration was obtained using geostatistical techniques.</p><p>In 2019 it was decided to carry out a phytoremediation intervention to reclaim the first meter of contaminated soil where heavy hydrocarbons content ranges from 500 to 5000 mg/kg. The first step of the intervention consists in cultivating a wide variety of vegetal species in experimental plots with different pollution to verify their effectiveness for remediation in the specific environmental condition of that area. For the reclamation of deeper more contaminated layers, enhanced bioremediation have been planned to be used.</p><p>Soil properties, which are crucial for planning phytoremediation activities, were investigated using traditional methods and geophysical surveys. Traditional soil survey was performed describing the 23 drilling cores used to monitor pollutants and opening five profiles; the samples were collected from genetic soil horizons and analysed for organic carbon and the main nutrient (nitrogen, phosphorus and potassium) content, total carbonates, texture and pH in water. The distribution of Eutric Luvisols and Cambisols, developed mainly on sandy or sandy skeletal substrate, was represented in a soil map. A proximal geophysical survey was carried out using an electromagnetic induction (EMI) sensor (GSSI Profiler EMP-400) by acquiring multiple frequencies; soil detailed conductivity maps for each frequency (15000, 9000 and 2000 kHz) were obtained. No significant relationships were found between soil electrical conductivity and hydrocarbon concentration, whereas there are relationships with the main soil characteristics: this allowed detailed maps of soil parameters to be obtained.</p><p>On the base of both the soil spatial characterization (traditional soil map and detailed soil property maps with geophysical approach) and the contaminant distribution (hydrocarbon map distribution using geostatistical approach), homogeneous areas were identified in which to set up experimental phytoremediation plots to test the most suitable species for reclamation, chosen among the most widespread crops in the region and considering their suitability for biomass and bio-oil production.</p>

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