Author:Zhao, T; Debba, Pravesh; Stein, ADate:Jul 2008Spatial sampling optimization is an important issue for both geo-chemists and geo-statisticians. Many spatial sampling optimization methods have been previously developed. In this paper, we present a spatial simulated annealing method is ...Read more
Author:Snyman-van der Walt, LuanitaDate:Mar 2024Strategic Environmental Assessment (SEA) is applied to inform decisions on sustainable development but may be limited in its mechanisms for unlocking the potential spatial information, and facilitating actual and effective collaborative ...Read more
Author:Williams, LL; Lück-Vogel, MelanieDate:Oct 2022This study determines input data appropriateness for geographic information system-based enhanced bathtub model (eBTM) modeling of coastal inundation in an urban setting. Various tests were conducted concerning digital surface models (DSMs) ...Read more
Author:Murambadoro, MDate:Nov 2011As part of the outreach programme the South African Risk and Vulnerability Atlas (SARVA) was introduced to geography students of the Society of South African Geographers Students. The students were attending their annual conference hosted by ...Read more
Author:Partridge, TC; Dollar, ESJ; Moolman, J; Dollar, LHDate:Feb 2010This work has drawn upon previous attempts to define geomorphic provinces, but also on more recent work on the geological and geomorphological evolution of southern African fluvial systems. It has also used Digital Terrain Model (DTM)-derived ...Read more
Author:Cho, Moses A; Chirwa, PW; Marumbwa, FMDate:Jan 2021Within Southern African biomes, droughts are recurrent with devastating impacts on ecological, economic, and human wellbeing. In this context, understanding the drought impact on vegetation is of extreme importance. However, information on ...Read more
Author:Naude, AH; Van Huyssteen, Elsona; Goss, HDate:Apr 2008The paper will (1) build an argument for the importance and challenges of connecting across scales and borders and between sectors, (2) provide a brief overview of GAP2 in terms of its geo-spatial analysis platform, the way in which it ...Read more
Author:Siebrits, E; Crouch, SLDate:Dec 1993A general two-dimensional elastodynamic displacement discontinuity method is used to model a variety of application problems. The plane strain problems are: the elastodynamic motions induced on a cavity by shear slip on a nearby crack; the ...Read more
Author:Schweitzer, JK; Johnson, RADate:Jun 1997As depth of mining increases, so the production costs of the aurifereous Witwatersrand deposits are continuously increasing, with some mines already mining at depths exceeding 3500 m. Health and safety aspects are, simultaneously, gaining in ...Read more
Author:Maila, MP; Cloete, TEDate:2002The sensitivity of Lepidium sativum germination to polycyclic aromatic hydrocarbons (PAHs) was investigated in soil(s) artificially and historically contaminated with mixtures of PAR The level of germination of L. sativum decreased with ...Read more
Author:Pretorius, L; Marais, Laurette; Berg, ADate:Mar 2017The Grammatical Framework (GF) not only offers state of the art grammar-based machine translation support between an increasing number of languages through its so-called Resource Grammar Library, but is also fast becoming a de facto framework ...Read more
Author:Taljaard, Susan; Van Niekerk, Lara; Lemley, DADate:Jan 2018In South Africa more than 80% of estuaries are small, dynamic and predominantly linear systems. Nutrient characteristics in these systems are mostly influenced by external catchment processes, except during extended periods of closure. However, ...Read more
Author:Staver, C; Archibald, S; Levin, SADate:Oct 2011Theoretically, fire–tree cover feedbacks can maintain savanna and forest as alternative stable states. However, the global extent of fire- driven discontinuities in tree cover is unknown, especially accounting for seasonality and soils. The ...Read more
Author:Celliers, Louis; Monteiro, Pedro MSDate:Oct 2012This international workshop was convened in order to develop a proposal for an integrated global observing network for both carbon and ocean acidification that addresses the requirements of nations affected by this emerging environmental ...Read more