scholarly journals GEOMORPHOLOGICAL AND BATHYMETRIC RESEARCH ON LAKES ZERELIA OF ALMYROS (CENTRAL GREECE)

2017 ◽  
Vol 50 (1) ◽  
pp. 315
Author(s):  
A. Gaitanopoulos ◽  
K. Albanakis ◽  
K. Vouvalidis
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
High Resolution ◽  
Large Scale ◽  
Surrounding Area ◽  
Geometric Characteristics ◽  
Central Greece ◽  
Bathymetric Data ◽  
Area Of Interest ◽  
Gis Environment

The area of interest is located close to Almyros city, at the prefecture of Magnesia (Central Greece), where the twin lakes Zerelia are situated. The origin of these twin lakes is not clear, however, many hypotheses have been proposed over the years. A lack of large-scale mapping in the surrounding area and a high resolution spatial depiction of the topography, hinders the extractionof conclusions on the twin lakes' origin. Also, previous studies have focused on surficial evidence to support hypotheses, rather than investigating the geometric characteristics and the spatial lay-out of the twin lakes. Filling this gap, measurements of depth via sonar in Zerelia lakes were performed. The bathymetric data along with the digitized, high-resolution topographic data of the surrounding terrain were imported in a Geographic Information System (GIS) environment. The area was depicted with high accuracythrough DEMs and conclusions for the landscape were extracted. The above analysis contributed towards an appreciation of the intense interplay between erosional andtectonic processes in the area and deemed drainage antecedence an important element that needs to be accounted for, in any interpretation of the origin of the twin lakes Zerelia.

Prediction of Areas Prone to Lightning Ignition

1992 ◽  
Vol 2 (3) ◽  
pp. 123 ◽  
Author(s):  
RHD McRae
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Environmental Factors ◽  
Large Scale ◽  
Fire Management ◽  
Fire Hazard ◽  
Assessment Procedure ◽  
Historic Records ◽  
In Fire ◽  
Meso Scale

A method for handling lightning-caused ignitions as part of a comprehensive fire hazard assessment procedure is presented. The locations at which lightning ignitions tend to occur have always been difficult to predict, and do not correlate with usual environmental factors. The model described here uses geographic information system techniques to remove large-scale trends in elevation. The meso-scale residual can be used to predict sites that are prone to lightning ignitions. The model is compared to historic records of lightning ignitions for the ACT, and is found to work very well. A range of other uses for the technique in fire management are discussed.

scholarly journals BUILDING INFORMATION MODELING (BIM) AND GEOGRAPHIC INFORMATION SYSTEM (GIS) DATA COMPATIBILITY FOR CONSTRUCTION PROJECT

2021 ◽  
Vol 6 (24) ◽  
pp. 278-289
Author(s):  
Wan Nor Fa’aizah Wan Abdul Basir ◽  
Uznir Ujang ◽  
Zulkepli Majid
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Data Exchange ◽  
Large Scale ◽  
Building Information Modeling ◽  
Construction Project ◽  
Geographic Information ◽  
Information Modeling ◽  
Gis Data ◽  
Building Information

Building Information Modeling (BIM) is a technology that focusing on the building element properties to the construction components which cover the interior and exterior building, while Geographic Information System (GIS) describe to the technology that can provide the large-scale information which cover inside and outside buildings (spaces and areas). In construction project application, BIM technology already been used as a worldwide tool while GIS rarely been applied. Each technology contains their own advantages that can be utilized in the construction project application. To bring the best effective approach in construction project, the integration between BIM and GIS technology can be considered. This paper presented an attempt in integrating BIM and GIS by using FME as a data integration platform to solve the limitation of BIM in construction project by using advantages of GIS. Through this research, an investigation of the data exchange during integration process between BIM and GIS will be look up. By using this approach, it is possible to store the BIM and GIS data in one environment. The end results for this paper will cover the method of the data exchange between BIM to GIS and GIS to BIM. Besides that, this paper highlight how GIS can solve the limitation in BIM in construction project.

Efficiencies and Benefits Gained by Small Pipeline Companies From the Implementation of Cost-Effective GIS Technology

2002 ◽  
Author(s):  
Brent A. Jones
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Large Scale ◽  
Cost Effective ◽  
Geographic Information ◽  
Data Sets ◽  
Gis Technology ◽  
Energy Company ◽  
The Cost ◽  
Gis System

Many smaller pipeline operating companies see the benefits of implementing a Geographic Information System (GIS) to organize pipeline data and meet the requirements of 49 CFR 195, but cannot justify the cost of a large-scale AM/FM/GIS system. PPL Interstate Energy Company (PPL IE) is a pipeline company with 84 miles of main that implemented a GIS solution that leverages both existing technology and facility data investments. This paper discusses the process used to acquire landbase data, to organize existing pipeline data from a variety of paper-based and digital sources, and to integrate these data sets. It will also discuss the functionality and benefits of the resultant GIS.

scholarly journals Depth Contours and Coastline Generalization for Harbour and Approach Nautical Charts

2021 ◽  
Vol 10 (4) ◽  
pp. 197
Author(s):  
Andriani Skopeliti ◽  
Lysandros Tsoulos ◽  
Shachak Pe’eri
Keyword(s):  
New York ◽  
Information System ◽  
High Resolution ◽  
Best Practices ◽  
Bay Area ◽  
Depth Contour ◽  
Digital Elevation ◽  
Suitable Generalization ◽  
Gis Environment ◽  
Critical Process

Generalization of nautical charts and electronic nautical charts (ENCs) is a critical process which aims at the safety of navigation and clear cartographic presentation. This paper elaborates on the problem of depth contours and coastline generalization—natural and artificial—for medium-scale charts (harbour and approach) taking into account International Hydrographic Organization (IHO) standards, hydrographic offices’ (HOs) best practices and cartographic literature. Additional factors considered are scale, depth, and seafloor characteristics. The proposed method for depth contour generalization utilizes contours created from high-resolution digital elevation models (DEMs) or those already portrayed on nautical charts. Moreover, it ensures consistency with generalized soundings. Regarding natural coastline generalization, the focus was on managing the resolution, while maintaining the shape, and on the islands. For the provision of a suitable generalization solution for the artificial shoreline, it was preprocessed in order to automatically recognize the shape of each structure as perceived by humans (e.g., a pier that looks like a T). The proposed generalization methodology is implemented with custom-developed routines utilizing standard geo-processing functions available in a geographic information system (GIS) environment and thus can be adopted by hydrographic agencies to support their ENC and nautical chart production. The methodology has been tested in the New York Lower Bay area in the U.S.A. Results have successfully delineated depth contours and coastline at scales 1:10 K, 1:20 K, 1:40 K and 1:80 K.

scholarly journals Seepage Velocity: Large Scale Mapping and the Evaluation of Two Different Aquifer Conditions (Silty Clayey and Sandy)

Hydrology ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 60
Author(s):  
Qais Al-Madhlom ◽  
Nadhir Al-Ansari ◽  
Bashar Abid Hamza ◽  
Jan Laue ◽  
Hussain Musa Hussain
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Large Scale ◽  
Geographic Information ◽  
Effective Porosity ◽  
Important Criterion ◽  
Seepage Velocity ◽  
The West ◽  
Gis Software ◽  
Saturated Thickness

Seepage velocity is a very important criterion in infrastructure construction. The planning of numerous large infrastructure projects requires the mapping of seepage velocity at a large scale. To date, however, no reliable approach exists to determine seepage velocity at such a scale. This paper presents a tool within ArcMap/Geographic Information System (GIS) software that can be used to map the seepage velocity at a large scale. The resultant maps include both direction and magnitude mapping of the seepage velocity. To verify the GIS tool, this study considered two types of aquifer conditions in two regions in Iraq: silty clayey (Babylon province) and sandy (Dibdibba in Karbala province). The results indicate that, for Babylon province, the groundwater flows from the northwest to southeast with a seepage velocity no more than 0.19 m/d; for the Dibdibba region, the groundwater flows from the west to the east with a seepage velocity not exceeding 0.27 m/d. The effectiveness of the presented tool in depicting the seepage velocity was thus demonstrated. The accuracy of the resultant maps depends on the resolution of the four essential maps (groundwater elevation head, effective porosity, saturated thickness, and transmissivity) and locations of wells that are used to collect the data.

scholarly journals Archaeоlogical Map of Bulgaria – Transport and Pipeline Infrastructure Projects

2019 ◽  
Author(s):  
Nadezhda Kecheva
Keyword(s):  
European Union ◽  
Information System ◽  
Geographic Information System ◽  
Scale Development ◽  
Large Scale ◽  
Geographic Information ◽  
The European Union ◽  
Price List ◽  
Archaeological Data

When the European Union began to finance transport and pipeline infrastructure constructions in Bulgaria, large-scale development-led archaeological projects emerged. After 2011, many 'polluter pays' projects were executed with the outlined workflow containing preliminary reports and fieldwork activities in accordance with Bulgarian legislation and a defined price list. As part of the process the national 'sites and monuments' archaeological information system 'Archaeological Map of Bulgaria' (AIS AKB) plays an important part as a source of archaeological data for the territory of Bulgaria. This centralised structure controls the quality of the archaeological fieldwork and data standardisation. The aim is to transform the 'sites and monuments' information system to an archaeological geographic information system (GIS) based on geospatial features, largely using an accumulation of standardised data.

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