Susan Henrico

Stellenbosch University | SUN · Department of Strategic Studies

A previous study by the authors illustrated the distribution of naturally occurring radionuclides, i.e., potassium (K40), thorium (Th232), and uranium (U238), in the sediment of the Berg River estuary. The study also described the Delta Underwater Gamma detection System (DUGS) and its usage to measure the concentrations of these natural radionuclid...

Geographic Information Systems (GIS) consists of various tools to perform spatial analyses in a wide variety of disciplines, including radiometric analysis to characterize the distribution of natural radionuclide concentrations. Recently, open‐source GIS has become popular among geospatial users because it can be freely used, and powerful tools are...

The prospect of extra-terrestrial (outer space) armed conflict between major powers is a real possibility. As early as 1966, an Outer Space Treaty was signed by over 100 countries in response to such a possibility. In 2019, NATO declared outer space a new potential war zone or military operational domain alongside air, land, sea, and cyberspace. Th...

We conducted a study to find out whether and why South African users accepted QGIS. In the quantitative part of the study, we found that QGIS acceptance is primarily influenced by habit, followed by facilitating conditions, price value, and social influence. To better understand and explain these results, we conducted a qualitative study in which s...

Globally, changes in technology have always shaped the intelligence collection environment. South Africa is no different. The emergence of satellite imagery had a significant influence on the Geospatial Intelligence (GEOINT) capabilities and, similarly, the emergence of the telegram and later the telephone had and equally significant effect on the...

The benefits of free and open-source software for geographical information systems, such as QGIS, are appreciated by many all over the world. However, QGIS adoption in South Africa is not primarily influenced by the benefits attributed to open-source software, such as cost benefits, customizability, improved reliability, quality and security. In th...

The importance of Military Geography in the curricula of military academies cannot be overemphasized, because geography plays a significant role during military operations of any nature. Military Geography encompasses various social science sub-fields, among others political science, military history, military strategy and military intelligence. It...

Geospatial information and technologies are widely used in South Africa, initially mostly with proprietary software but today, mature, open source alternatives such as QGIS are available. We wanted to find out if and why South African users accepted QGIS, globally the most widely used free and open source GIS. We adapted the extended unified theory...

The study of terrain and all its related elements and facets are of crucial importance to the military, with the importance of terrain being recognised by military leaders more than two thousand years ago. Military operations can occur at any of the three levels of war: tactical, operational and strategic, and can be a combat operation or a militar...

Visibility analysis, commonly known as viewshed, is a valuable function in any geographic information system (GIS) and is a critical tool used for many applications, including the military, for representing the overall visibility and surface characteristics of the terrain. The first step to perform a visibility analysis is selecting the digital ele...

Visibility analysis, commonly known as viewshed, is a valuable function in any geographic information system (GIS) and is a critical tool used for many applications, including the military, for representing the overall visibility and surface characteristics of the terrain. The first step to perform a visibility analysis is selecting the digital ele...