scholarly journals Using GPS and GIS to Enrich the Walk-along Method

Field Methods ◽  
2020 ◽  
Vol 32 (2) ◽  
pp. 180-192 ◽  
Author(s):  
Natalia Martini
Keyword(s):  
Information System ◽  
Global Positioning System ◽  
Geographical Information ◽  
Gps Data ◽  
Positioning System ◽  
Geospatial Technologies ◽  
Daily Lives ◽  
Spatial Sensitivity ◽  
The Social ◽  
Global Positioning

This article demonstrates what may be gained from combining the walk-along method with the global positioning system (GPS) and geographical information system (GIS) when exploring the social and physical aspects of locally situated daily lives. It focuses on the premise and application of the spatial transcript technique, which allows for an integration of qualitative and GPS data generated while walking, and its subsequent visualization and analysis within GIS. It suggests that incorporating geospatial technologies into the walk-along method might serve as means to operationalize particular spatial sensitivity afforded by this mode of inquiry and effectively advance its utility for yielding spatially sensitive insights.

Differential Global Positioning System: Potential for Geographical Information System Database Management

1993 ◽  
Vol 25 (6) ◽  
pp. 883-898 ◽  
Author(s):  
P Treitz ◽  
L Elliot ◽  
P Howarth
Keyword(s):  
Information System ◽  
Global Positioning System ◽  
Spatial Information ◽  
Urban Land Use ◽  
Geographical Information ◽  
Gps Data ◽  
Positioning System ◽  
Differential Gps ◽  
Static Mode ◽  
Global Positioning

The primary problem for managers of digital topographic data is maintaining an accurate and up-to-date database. Traditional spatial-data-collection techniques and mapping procedures are expensive and, as a result, occur infrequently. However, the NAVSTAR Global Positioning System (GPS) now provides for the collection of timely, cost-effective spatial information. In this study, differential GPS data were collected for an area of rapid rural-to-urban land-use change by using low-cost GPS receivers in static and kinematic modes. These data were then processed for input to a geographic information system and assessed for their positional accuracy. It was found that GPS data collected in static mode and differentially corrected possessed a circular map accuracy standard (CMAS) of 3.62 m. These accuracies meet the requirements of many large-scale and medium-scale mapping programs.

scholarly journals Study of the Effect of the Geometrical Correction of the Satellite Image on the Global Positioning System Tracking by Using Geographical Information System

2012 ◽  
Vol 23 (2) ◽  
pp. 173-187
Author(s):  
صباح حسين علي صباح حسين علي
Keyword(s):  
Information System ◽  
Coordinate System ◽  
Geographical Information System ◽  
Global Positioning System ◽  
Satellite Image ◽  
Geographical Information ◽  
Gps Tracking ◽  
Positioning System ◽  
Positional Accuracy ◽  
Global Positioning

The use of Global Positioning System (GPS) for geometrical correction (rectification) of the satellite imagery aims to establish the relation between the image coordinate system and the GPS readout coordinate system. By using this technique, the errors existing within satellite image can be calibrated and reduced as well. This paper introduces application of Geographical Information System (GIS) and image processing software in addition to GPS for measuring the coordinates of waypoints to be as ground control points (GCPs) for the geometrical correction process of the QuickBird satellite image for the adopted study area (Mosul City). For comparison purpose, the geodetic rectification process was also done for the adopted QuickBird satellite image with respect to the IKONOS imagery. Due to the low standards in the geometric design characteristics of the road which badly affected the GPS measurements, the output results show that the geodetic rectification of the QuickBird imagery with respect to IKONOS satellite image gives more accuracy of results than GCP acquired by GPS. The overall procedure applied in the present study shows the ability to give an improvement in the positional accuracy of an already georeferenced coordinate system of the QuickBird image which in turn gives a higher accuracy of the GPS tracking path for the purpose of mapping, urban planning, cartography, survey and other GIS applications .

scholarly journals ESTIMATION OF BAGHDAD UNIVERSITY REGION EXACT COORDINATES BY USING REMOTE SENSING TECHNIQUES & GIS

2021 ◽  
Vol 03 (02) ◽  
pp. 135-145
Author(s):  
Reem I MUSTAFA ◽  
Gheidaa S AL-HASSANY ◽  
Huda W ABDULWADOOD
Keyword(s):  
Remote Sensing ◽  
Information System ◽  
Geographical Information System ◽  
Global Positioning System ◽  
Geographical Information ◽  
Positioning System ◽  
Global Positioning ◽  
Remote Sensing Techniques ◽  
Inverse Distance ◽  
Differential Global Positioning System

In this research exact Coordinate points of Baghdad University locations were estimated by utilizing one of importance Remote Sensing (RS) techniques: Differential-Global-Positioning-System (DGPS) field to measure referencing points, then Inverse-Distance-Weight (IDW) Interpolation of Geographical-Information-System (GIS) was applied to defined each point coordinates in the study regiondepending on DGPS measurments. Eight referencing points were measured in Baghdad University region for having exact coordinates: Longitude, Latitude and DEM. ArcMap-GIS & Excel programs were utilized to determine the results.

Tendencias de los Sistemas de Información Geográfica. Alcances y limitaciones

2019 ◽  
pp. 8-13
Author(s):  
Erika Alarcón-Ruiz ◽  
Luis Daniel Ordoñez-Pacheco
Keyword(s):  
Information System ◽  
Global Positioning System ◽  
Information Technologies ◽  
Research Result ◽  
Observation Data ◽  
Positioning System ◽  
Global Positioning ◽  
It Support ◽  
Sistemas De Informacion ◽  
Geographical Characteristics

The synergy that exists between geography, computer science and advances in information technologies has allowed the consolidation of geographic science from an integral perspective and allowing the correlation of basic elements for the analysis of the territory in an applied science called Geomatics. The research result in this field are linked to the collection and analysis of observation data, which are collected through satellites, ground stations, ocean buoys, the global positioning system (GPS), aerial sensors (photogrammetry), Weather balloons and traditional techniques for measuring and describing land. To process this data, Geographic Information System (GIS) has been developed, involving aspects of hardware and software with applications that are as diverse and varied as the users themselves. Also, presents an analysis of the main SIG's, its main features and applications , because despite having a scientific structure and IT support that allows one effective land management in rural or urban type, yet there is a wide area of opportunity solving and Previ or endo the emergence of conflicts interactions between human activities and geographical characteristics.

Operationalizing Neighborhood Definitions in Health Research

2018 ◽  
Author(s):  
Dustin T. Duncan ◽  
Seann D. Regan ◽  
Basile Chaix
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Global Positioning System ◽  
Health Research ◽  
Self Report ◽  
Activity Space ◽  
Positioning System ◽  
Activity Spaces ◽  
Global Positioning ◽  
Neighborhood Boundaries

Defining neighborhoods for health research continues to be challenging. This chapter discusses different methods to operationalize neighborhood boundaries, including self-report, administrative definitions, geographic information system buffers and activity spaces, including global positioning system (GPS)–defined activity spaces. It discusses the strengths and limitations of each method of examining neighborhood boundaries (e.g., spatial misclassification, technical difficulties, assumptions). Readers are provided with examples of neighborhood definitions frequently applied in the epidemiology and population health literature. In addition, the chapter provides a rigorous overview of theories for selecting neighborhood definitions, including spatial polygamy theory for GPS-defined activity space neighborhoods.

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