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Many studies have demonstrated that Plasmodium falciparum infection exhibits both spatial and temporal dependency. This variability is related to both climatic and environmental variability. Climatic and environmental factors play a large role by affecting the biological cycle of both vector and parasite… (more)
Assessment and monitoring of erosion has with the advent of geospatial techniques become more accurate, affordable and less time consuming. This study was based on the use of GIS, remote sensing and field surveys techniques to identify gully erosion within the Zhulubemeso-catchment of the Limpopo Basin in Zimbabwe… (more)
We need tools that are powerful, scalable, fast and easy to use. The advantage of open source freeware lies in their being free of charge and with many add-on packages that provide diverse functionalities. Open source and proprietary GIS and image processing software are at par, some are good in scalability whereas the others are good in functionality… (more)
The objective of the South African Spatial Data Infrastructure (SASDI) is to facilitate the capture, management, maintenance, integration, distribution and use of spatial information in South Africa. To realize this objective, SASDI stakeholders have to understand the purpose and benefits of SASDI… (more)
The paper presents the problems associated with current geographic information system (GIS) and the need for their integration with other specialised tooling such as statistics in R or matrix algebra of Octave. The authors take the stance that neither GIS should be adapted to include all the functionality of for example a statistics package nor should the statistics package be adapted to become a full GIS… (more)
There exists ample evidence that physical structures of and around residential neighbourhoods can influence health. This study used fine scale spatial data and local community’s perceptions to examine the spatial distribution of TB, HIV/AIDS, hypertension, diabetes and obesity across different physical environments of the Philippi township “Brown’s Farm”… (more)
The Geography division within Stats SA is developing a new strategy paving its way for the collection, upkeep and dissemination of the spatial statistics for outcome based statistics in South Africa, in line with the vision of Stats SA to be your leading partner in quality statistics… (more)
Human immunodeficiency virus (HIV)/Acquired immune deficiency syndrome (AIDS) is a major global health problem. It is the greatest threat to the development of South Africa. Advances in information and communication technology (ICT) have facilitated development of medical expert systems. In this paper we describe how web-based advisory expert system can enhance HIV-symptoms management… (more)
The Ekurhuleni Metropolitan Municipality (EMM) has embarked on centralising its customer data accessibility by recommending a Master Data Management (MDM) roodmap. The objective is as follows: “to develop a business case and enhance a three year roadmap which was realised during 2009/2010 financial year to better efficiency by reducing complexity of processes and reduction of manual translation and analysis: hence high motivation and making business sense to implement MDM as the solution”… (more)
A constitutional court judgement rendered spatial planning without national guidance from 17 June 2012 in South Africa. This combined with the complexity of legislation governing land use in South Africa can only ensure ill coordinated development with unsustainability as core component… (more)
The infrastructure planning tool was developed to assist planners to locate facilities optimally with integrated planning, population growth and distribution in mind. The tool makes use of existing facilities which represents current supply and the current demand is determined from census data… (more)
Open source GIS is diverse and mature and enjoyed by a growing community. This paper will take you on a whirlwind tour of many of the FOSS GIS applications available, covering all aspects of the GIS industry. It uses as a basis the OSGeo live DVD, which is a bootable disk containing all the software pre-installed and operational… (more)
As part of the eLAND address and postcode system being introduced by the SA Post Office, it is desirable and sometimes necessary to verify address locations to specific requirements. Standards for this such as the Universal Postal Union UPU S42 and SANS 1883 of SA Bureau of Standards are useful for this but not completely satisfactory for data users. The proposed ISO 19160 standard is also discussed in this regard… (more)
The term “value for money” has become the watchword internationally for organisations in both the public and private sector. Maximising value in both new and existing assets is the key to efficiency savings that all establishments are driving for… (more)
As maps are graphic integration of spatial and non-spatial portrayal of the whole or section of the earth’s surface drawn to scale on a digital/glass/plastic/paper flat. For information originally on an irregular earth to be represented on a flat, three purpose targeted transformation are performed: conformal, equal area and equidistant projections… (more)
With more than six “mobile mapping” systems currently on the market and no doubt further innovations to follow this paper explores the concept of mapping grade mobile data collection vs survey grade. It highlights how individual components of a mobile data collection system are integral to the overall performance… (more)
The West Coast Peninsula is a rocky outcrop between St Helena Bay to the north and Saldanha Bay to the south. The numerous granite protrusions on the peninsula are elements of the underlining Cape Granite Suite which forms bedrock of the West Coast Peninsula.Granite contains very high levels of natural radioisotopes which results in high levels of natural background radiation in the surrounding area… (more)
This is the academic research study that endeavours to take up the challenge and provide an intellectual discourse in response to the urban land developments that seem to be indirectly impacting on the issues of environment (especially the climate change of the immediate area due to the continuous eradication of the vegetation in that vicinity)… (more)
Service delivery, upgrading of services, effective municipal and asset management is only possible if an organisation has accurate and complete data sets. The pressure is on project managers, GIS professionals, engineers and any other professional to ensure that data capturing is reliable, cost effective and fast. High accuracy 3D mobile mapping is one of the latest “tools in the toolbox” to affect this… (more)
This presentation will cover a guide to finding the right tools for field asset collection jobs. Those tools include mobile hardware and software solutions that can be combined with different field operation tasks running on various hardware platforms… (more)
Whether used for fleet management, vehicle tracking, inventory management, mobile workforce management, understanding your sales activities or customer interaction, social networking or entertainment, LBS can create a more dynamic user experience. This adds value and convenience and changes the way people transact within a business, with a business as well as to organise their activities and free time… (more)
The National Planning Commission has done interesting and thought provoking work in terms of identifying and addressing the nine challenges in South Africa. The commission created lovely animated movies which describes the challenges and their solutions… (more)
Free and Open Source GIS Software is being used widely across South Africa in diverse applications. This presentation showcases a number of projects implemented with FOSS GIS in government, private industry, civil society and other sectors. Case studies are drawn from various companies, consultants and service providers… (more)
In sub-Saharan Africa, rapid urban growth is characterized by prolific expansion of unplanned (informal) structures, and unguided spatial expansion. These unguided expansions by human agents have outstripped the regulatory capacities of central and local government. Governmental institutions in their bid to find solutions to the unguided expansion in unplanned use of land need to invest in the modelling process of what influences the spatial decision and role of human agents in the growth of informal settlement… (more)
Augmented reality (AR) is defined as the process of augmenting the real world with virtual information, improving the user’s skills and senses by removing the boundaries of the real worlds’ physical laws and material properties. The concept of AR has been around for decades. Usages of AR extend from the cockpit of jetfighter planes to movie sets… (more)
Spreadsheets have traditionally been tools used in business for analysis of data in a simple and easy structure and with filtering and searching capability. In the GIS world, spreadsheets were often used in relation to spatial data, but the shortcoming of a spreadsheet is that it presents the data in rows and columns only and this does not lead to a very good spatial view of the data contained therein… (more)
Advances in information and communication technology coupled with the digital revolution have fundamentally impacted on geographic data production and information use. Geographic information science (GISci.) refers to a body of integrated disciplines such as photogrammetry, remote sensing, geographic information system/land information system and other aspects of surveying and mapping sciences such as geodesy, surveying and cartography, with information and communication technology… (more)
Community engagement has become a core responsibility of higher education, alongside teaching and research. The community engagement focus of the Department of Geography at UNISA is the project “Roots Driven Rural Development” which is conducted in collaboration with a non-governmental organisation.. (more)
GIS is changing the way geographic information is managed by information managers and GIS professionals accessed by their organizations. This complete GIS further integrates desktops, servers, mobile, and web applications and provides additional tools and infrastructure for extending the reach of existing GIS implementations. With new GIS functionality, organizations can transition to next-generation GIS platforms without jeopardizing current GIS investments… (more)
This paper describes the concept of a Wide Area Alerting System (WAAS), a flexible ICT platform for building alerting and notification applications. It is tailored to the generation and dissemination of complex alerts or notifications derived from geospatial-temporal data originating from heterogeneous sensors, models and/or monitoring processes… (more)
This paper describes the use of probabilistic graphical models, in particular Bayesian networks (BN), for the detection of four problem invasive alien plants, Chromolaena odorata, Eucalyptus grandis, Lantana camara, and Pinus patula from 8-band Worldview-2 satellite imagery acquired over 2 characteristically different sites in Swaziland… (more)
In the fields of satellite imagery and aerial photography, the geospatial community finds itself in a privileged situation where we have a myriad of choice with respect to sensors, resolutions, revisit times and capabilities in terms of imagery… (more)
In this paper we presented a multi-scale approach towards the classification of urban scenes and identification of some key high level features in order to model urban scenes. The approach exploited the advantages of the multi-scale structure of image generated by the multi-resolution algorithm in e-Cognition… (more)
This paper describes the new eLAND barcoded postcode and addressing system that will be introduced in South Africa over the next two years. The design of the eLAND system is classified as being an “intelligent mail” concept. Similar concepts exist in several countries; however this is the latest, is unique and is believed to be amongst the best… (more)
This paper deals with a description of the value chain from the spatial analytics model (typically related to trade area analysis) through to the acquisition of some of the input data from the censor network. The analytics process is broken down into the comprising elements with each step briefly described… (more)
Geospatial is both an industry and a capability that provides the cadastral, mining, construction, agriculture, and utilities industries a basis for mapping, location-based services, resource management, and analytics. Geospatial products touch all aspects of our personal and professional lives… (more)
This paper describes the use of the ISO 13567 standard in the development of a CAD Standard for the Coega IDZ. The development of a CAD Standard has contributed to well-formed CAD data sources for use in a GIS workflow to support the management of the infrastructure lifecycle… (more)
It is courageous and innovative to introduce GIS into the Geography curriculum in the new CAPS to the extent in which it has been. If taught well, learners who take Geography up to grade 12 will have a good understanding ofbasic skills in remote sensing, geomatics and GIS… (more)
The purpose of this paper is to discuss and demonstrate the findings of an in-house, proof of concept, pilot project that was done on the use of an intranet open source system, to migrate an existing old proprietary intranet GIS system, which the vendor doesn’t support anymore… (more)
Professionalism cannot be divorced from topics such as public safety, ethics, education, and professional registration with a professional body. The aim of this paper is to discuss in brief each of these topics and the status of GISc professionalism in South Africa… (more)
Climate change poses a major threat to environmental sustainability. In Africa, sectors which face projected vulnerability include, food security, public health and water resources. A general increase in extreme weather events is also predicted and the effects thereof are beginning to be felt… (more)
Geospatial data is fuel, when sparked by change on the earth’s surface, drives the Dynamic GIS to exploit the wealth of content in the 5D Information Cloud. Most recently, we have gained access to an assimilation of desktop, web and mobile applications, that combined, offer us the ability to rapidly transform raw data into actionable information… (more)
The spatial understanding of unemployment in South Africa is often limited to provinces. This paper explores ways to integrate unemployment data from 1991 to 2007 to obtain a spatially more detailed understanding of the phenomenon… (more)
The scope and emphasis of a public health program are necessarily influenced by the changing characteristics of the population it serves. In South Africa, population growth between 2004 and 2009 has outstripped the availability of health facilities. GIS provides ideal platforms for decision makers to easily visualize problems in relation to existing health services as well as distribution of health facilities and their surrounding populations… (more)
This paper investigates the voting patterns at ward level for both the 2004 and 2009 national and provincial elections as well as the 2006 and 2011 local government elections to determine change in voting patterns… (more)
Government efforts to focus public funding expenditure and improve community livelihoods and service provision are often fraught with difficulties. A key challenge is how to spatially target expenditure where it is needed most… (more)
The aim of this paper is to explore the application of the Land Administration Domain Model (LADM) to the City of Johannesburg Land Information System. The LADM is a conceptual schema which is being developed by the ISO/TC211 for modelling the rights, restrictions and responsibilities affecting land and their geospatial and/or geometric components… (more)
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