Gis Data Articles | Environmental XPRT

3 Scientific Tools to Help You Better Understand Your Water Quality

There are many ways of testing and understanding your water quality with online scientific tools and models. One such resource is the National Water-Quality Assessment (NAWQA) project run by the U.S. Geological Survey (USGS). The project, which was founded in 1991 to develop reliable information about water sources to support decisions on water quality management ...

Mar. 28, 2018

By Adedge Water Technologies, LLC

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

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

Integration of Subsurface Data Management and GIS to Facilitate Model Calibration

Abstract The development of numerical codes, as well as pre- and post-processors to support these codes, has made the discipline of groundwater modelling increasingly more automated and efficient. The value of such modelling is reliant on the site-specific data used to build and calibrate the models. The integration of EarthSoft's EQuISÒ Geology and any of several popular modelling environments ...

Nov. 1, 1999

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

Experiences in development and maintenance of Silence-GIS

Abstract Silence-GIS is a larse scale noise management system build as an extension on ArcGIS 9.3.1. This system has been designed and developed for the Dutch Highway Authorities. The aim of the system is to support decisions on Dutch and European noise policy and to predict the effect of future measures on the noise exposure of the population in The Netherlands. The information needed to ...

May 14, 2015

By Softnoise GmbH

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

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

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 Groundwater Modeling Technologies for SWAPP Development

Groundwater Modeling and GIS Technologies: Powerful Tools for Data Integration and Analysis Groundwater modeling and Geographic Information System (GIS) technologies are useful tools for developing a Source Water Assessment and Protection Plan (SWAPP) to assist planners in protecting groundwater ...

Jan. 1, 2001

By Weston Solutions, 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

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

An approach to quantifying rainwater harvesting potential using imagery, geographic information systems (GIS) and LiDAR data

Geographic Information Systems (GIS) software is used to analyze rainwater harvesting potential in Escambia County, Florida, USA. The approach presented can be replicated using LiDAR data, and the infrared spectrum of National Agriculture Imagery Program (NAIP) imagery. GIS surface maps are analyzed in combination with local utility consumption data to determine potential reductions in potable ...

May 31, 2017

By IWA Publishing

Data Sharing – a Case of Shared Databases and Community Use of On-Line GIS Support Systems

Data management is becoming increasingly simple and complex at the same time. The challenge is to effectively use the increasing number of tools available to manage increasing amounts of environmental information for purposes of data capture, analysis, display, sharing and storage. Government is no longer the main collector and provider of data. Community groups possess vast amounts of data ...

Feb. 1, 2006

By Springer

Spatial analysis of water quality using a combination of GIS and statistical software

GIS-based spatial analysis was combined with statistical analysis to process time varying water quality data. A data model was employed to manage the spatio-temporal data. The spatial data engine of ArcSDE was used to access the database. A data relationship model was developed to perform data communication between GIS and the statistical software. Visual Basic was used to construct links between ...

Nov. 7, 2006

By Inderscience Publishers

Risk assessment and GIS in natural hazards: issues in the application of HAZUS

The use of HAZUS is being encouraged by FEMA (Federal Emergency Management Agency) as jurisdictions are being forced, by regulation, to perform more sophisticated planning and risk assessment. HAZUS is a multi-hazard risk assessment tool that is available to public sector free of charge, and runs on the ArcGIS platform. The promotion, however, does not mean that HAZUS is a wonder drug, one that ...

Apr. 24, 2006

By Inderscience Publishers

Application of GIS to Plan Long-Range Water Supply Facilities by Linking Land Use and Water Billing Data of City of Cape Coral in Southwest Florida

This paper describes the application of a land use based approach to prepare a long-range forecast of water supply demand for the city of Cape Coral in southwest Florida. There are two common approaches to forecast water demand: (1) use of population projections; and (2) analysis of future land use planning. The South Florida Water Management District (SFWMD), as required in 2002 Legislation, has ...

Oct. 21, 2006

By Water Environment Federation (WEF)

A GIS based air quality system for the Apulia region, southern Italy

A GIS based air quality modelling system has been developed in Apulia region in the Southern Italy, to support local authorities in air quality management. Meteorological and dispersion simulations were performed for the year 2005. Predictions have been compared with concentration data from the air quality monitoring network. Results evidence a good correlation between predictions and ...

Jun. 18, 2012

By Inderscience Publishers

Development of a GIS method to localize critical source areas of diffuse nitrate pollution

The present study aimed at developing a universal method for the localization of critical source areas (CSAs) of diffuse nitrate (NO3−) pollution in rural catchments with low data availability. Based on existing methods, land use, soil, slope, riparian buffer strips and distance to surface waters were identified ...

Jan. 1, 2011

By IWA Publishing

A decision support system for air quality management combining GIS and optimisation techniques

This paper describes a multi-tiered approach to the design of plans and policies for urban environmental management, in particular air quality, as related to the energy and transportation sectors. The approach is based on the iterative combination of sectoral and global optimisation models, including a discrete multi-criteria approach, and spatially distributed air quality models. The approach ...

Jan. 26, 2004

By Inderscience Publishers

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