Gis Mapping Articles on Environmental XPRT

Mapping the results of mobile network monitoring: a GIS solution

Most of us are familiar with the 'can you hear me now' commercial - a spectacled technician from a major wireless carrier moves about with a dedicated team testing the voice clarity of the network. Geographic information system (GIS) technology (Foote and Lynch, 2011), together with the use of existing data collection hardware, allows analysts to map results of mobile networks both accurately and ...

Sep. 11, 2012

By Inderscience Publishers

Fluoride contamination mapping of groundwater in Northern India integrated with geochemical indicators and GIS

There are many incidents of increasing fluoride concentrations observed in India's groundwater. In the present study, the fluoride content was chemically analysed and integrated with geochemical model WATEQ4F sampled from Allahabad district, Northern India, with other water quality parameters. Geospatial technique was employed to depict the spatial distribution of fluoride concentrations, ...

Nov. 20, 2013

By IWA Publishing

NextGen GIS and the Environmental Database

Next Generation (NextGen) Geospatial Information System (GIS) and U.S. Department of Energy (DOE) Cold War legacy sites environmental records—spanning nearly 40 years—in the Environmental Database, are managed by the DOE Office of Legacy Management (LM). As key LM assets, these records must be managed and maintained efficiently and effectively. There are over 16 different applications ...

Jan. 23, 2015

By EarthSoft, Inc

Geographic information systems (GIS) for participation: the future of environmental GIS?

The conventional uses of geographic information systems (GIS) in environmental management have been criticized for being undemocratic and avoiding the social dimension of these issues. To address these criticisms, new participatory approaches are being developed by the GIS community. These new techniques involve the integration of conventional spatial data and mental maps showing communities' (or ...

Jan. 26, 2004

By Inderscience Publishers

Flood risk mapping and vulnerability analysis using GIS: empirical evidences from New Town area, Ondo, Ondo State, Nigeria

Spatial information technologies are changing the way in which decisions are taken in relation to the environment. Geographic information system (GIS) is one of such technologies that help to generate products useful in terrain analysis. In Nigeria, especially in the study area, floodplains and river corridors have been misused resulting in severe environmental hazards. Up-to-date information is ...

Aug. 4, 2011

By Inderscience Publishers

A GIS-based methodology to delineate aquifer recharge areas

A GIS-based methodology to delineate risk areas for contamination of groundwater resources is presented by identifying recharge conditions to the aquifer. Identifying the recharge areas is based upon surface and subsurface geologic conditions that may control the risk of potential oil spill contaminants into the aquifer. This study uses the Chicot aquifer system in southwest Louisiana as a pilot ...

Feb. 24, 2014

By Inderscience Publishers

Integrating GIS and Hydraulic Modelling in Urban and Rural Applications

Overview In the UK, numerical Hydraulic Modelling of the urban environment, water networks and rivers plays a vital role in providing the UK Water Industry with solutions for protecting the environment, meeting UK Government and European Regulations, meeting OPEX and CAPEX business targets, and improving the efficiency of Water Companies in managing their assets. Similarly, the UK water ...

Jan. 1, 2002

By Innovyze

Automatic mapping in emergency: a geostatistical perspective

In the case of a severe nuclear accident, radionuclides may be released into the atmosphere and contaminate large areas. Radiological maps are obtained after converting local measurements into continuous information in space. Ideally, the mapping process should be fully automatic and provide information in real time. This paper is presenting the results obtained from two statistical exercises ...

Jul. 2, 2007

By Inderscience Publishers

The Business of Brownfields: Managing Risk Using EQuIS and GIS

Untitled Document What is EQuIS? Sample data warehouse (Chemistry and Geology) Tools for checking and loading data from lab and field, ...

Nov. 1, 2005

By EarthSoft, Inc

Using GIS to Build Hydraulic Models Faster

The use of hydraulic models, already widespread, continues to grow rapidly. Modeling is used increasingly all around the world to address planning and operational issues in water supply networks, collection systems, and river management. Much of this growth results from the rapid advances in the capabilities of the best of the hydraulic modeling software solutions, which constantly improve ...

Jun. 24, 2006

By Innovyze

Poster Presentations; ESDI: From Inspiration to Implementation- 12th EC-GI&GIS Workshop

CAGI (the Czech Association for Geo-Information) plays important role in the national SDI and capacity building. We organise annual national GI conferences (Sec 1992-2004), Brno (2005-2006), special workshops (Vranov UP-GIS 1998-2006), support competitions (GISacek) and different events helping to create and form the Geo-Info community, special human sources. Important is the Nemoforum ...

Jan. 1, 2006

Analysis of seismic vulnerability using remote sensing and GIS techniques

This paper presents a framework to integrate several sources of spatial information to derive a map of seismic vulnerability for the city of Arica, Chile, which has been historically affected by this natural hazard. The proposed method is based on generating a geographical database with different variables that are related to human activity, considering factors of potential reduction and increase ...

May 11, 2004

By Inderscience Publishers

Study of water-table behaviour for the Indian Punjab using GIS

The state of Punjab (India) has witnessed a spectacular increase in agricultural production in the last few decades. This has been possible due to high use of fertilizers, good quality seeds and increased use of water resources. This increased demand of water resources has resulted in extensive use of groundwater in the central districts of the state and surface water (canals) in South-West ...

Jan. 1, 2011

By IWA Publishing

City of Montebello Sewer Master Planning Utilizing Innovative GIS Solutions

City of Montebello wanted to implement a comprehensive sewer master plan. At the same time they wanted to embark on implementing a GIS program. The solution was to combine the two and utilize the power and versatility of GIS as the core technology for performing the sewer master plan. In this paper we will show how the City accomplished its primary objectives which included: Modernizing its ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Risk assessment study for water supply network using GIS

In recent years, contamination of water in water distribution systems (WDS) has been recognized as a major cause of waterborne diseases. Owing to old and deteriorated pipes, and the presence of pollution sources in contact with the supply line, water boards often decide to replace the network in the interests of public health. This being a cost-intensive and time-consuming programme, decision ...

Jan. 1, 2010

By IWA Publishing

New Jersey Uses GIS, EQuIS to Collect Site Remediation Data

Using GIS To Manage Remediation Data GIS holds great potential as a tool for managing environmental site remediation data. While using GIS to locate Superfund sites is commonplace, GIS has played only a minor role in the review and analysis of chemical data gathered during an investigation or monitoring activity. There are a number of reasons why GIS has not become commonplace in the ...

Jan. 1, 2000

By EarthSoft, Inc

A GIS-based water distribution model for Zhengzhou city, China

Many water companies in China are developing GIS as a computer-based tool, for mapping and analyzing objects and events that happen on a water distribution network. However, only a few companies have taken a further step to develop a hydraulic model based on GIS, and Zhengzhou Water Supply Corporation is one of them. The WaterGEMS V8 XM from Bentley is used to develop the hydraulic model for the ...

Jan. 1, 2011

By IWA Publishing

GIS applications in urban drainage master planning - Case Study

Introduction: The City of Stratford, Ontario, located 150 km (94 mi.) west of Toronto, initiated the development of an infrastructure asset database in the early 1990’s and continues to develop digital mapping to support the maintenance and management of municipal services. In continuing these efforts, the City initiated the City-Wide Storm System Master Plan (the Study) in 2002 to ...

Mar. 2, 2012

By XP Solutions

Water quality assessment of Yamuna River in Delhi region using index mapping

Water quality indices (WQI) were introduced with the aim of reducing great amount of parameters into a simpler expression and enabling easy interpretation of monitoring data. In this study, an attempt has been made to devise a methodology to integrate the WQI with geographic information system (GIS) for an effective interpretation of the quality status of the river. River Yamuna in Delhi has been ...

Jul. 12, 2012

By Inderscience Publishers

GIS DRASTIC model for groundwater vulnerability estimation of Astaneh-Kouchesfahan Plain, Northern Iran

In this study, the groundwater vulnerability to pollution was evaluated for Astaneh-Kouchesfahan Plain, Northern Iran using GIS DRASTIC model. Based upon available data, six thematic maps were generated and intrinsic vulnerability map was developed based upon calculations from various mapped layers and DRASTIC index. The results show that low, moderate, high and very high groundwater ...

Oct. 25, 2011

By Inderscience Publishers

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