Articles by Keyword: Return Periods

Search results for Return Periods

We found 17 results for you
  1. Extreme significant wave height climate in the Gulf of Guinea

    Extreme significant wave height climate in the Gulf of Guinea

    Item type: Journal Article • Journal: African Journal of Marine Science
    This article investigates spatio-temporal trends for different return periods of extreme significant wave height (SWH) in the Gulf of Guinea (GG), northeastern tropical Atlantic Ocean, based on a 37-year (1980–2016) wave hindcast. High-resolution reanalysis windfield datasets were used to force...
  2. Effects of seed treatments on the germination of <em>Atriplex nummularia</em> Lindl.

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Laboratory experiments were conducted to determine the influence of length of soaking period and water temperature treatments on the germination of Atriplex nummularia. Germination percentages increased significantly (P≤0,01) with increasing soaking period in water with a temperature of 20°C, while...
  3. FUTURE CHALLENGES IN WATER QUALITY MODELLING WITH PARTICULAR REFERENCE TO OPERATIONALLY CLOSED CATCHMENTS

    FUTURE CHALLENGES IN WATER QUALITY MODELLING WITH PARTICULAR REFERENCE TO OPERATIONALLY CLOSED CATCHMENTS

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    As a result of the declining quality of many water sources, the use of water quality models in planning is increasing. To date applications have involved the simulation of total dissolved salts and nutrients, largely in catchments affected by urban...
  4. Spatial and temporal variation in a mesic savanna fire regime: responses to variation in annual rainfall

    Spatial and temporal variation in a mesic savanna fire regime: responses to variation in annual rainfall

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    This paper analyses the fire regime over 41 years (1956 to 1996) in Hluhluwe-Umfolozi Park, a mesic savanna area in South Africa. The study focuses at the landscape scale of tens of kilometres and at the medium term temporal scale...
  5. FUTURE CHALLENGES IN WATER QUALITY MODELLING WITH PARTICULAR REFERENCE TO OPERATIONALLY CLOSED CATCHMENTS

    FUTURE CHALLENGES IN WATER QUALITY MODELLING WITH PARTICULAR REFERENCE TO OPERATIONALLY CLOSED CATCHMENTS

    As a result of the declining quality of many water sources, the use of water quality models in planning is increasing. To date applications have involved the simulation of total dissolved salts and nutrients, largely in catchments affected by urban...
  6. A Social Cost-benefit Analysis of a Small-scale Clam Fishery in the Eastern Cape, South Africa

    A Social Cost-benefit Analysis of a Small-scale Clam Fishery in the Eastern Cape, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    When a proposal was advanced in 1991 to harvest the wedge clam Donax serra in the Eastern Cape, South Africa, for commercial gain, it elicited a huge public outcry. In order to shed light on the issue, a social cost-benefit...
  7. An investigation of investors’ estimates of returns earned and the effect of anchoring on these estimations

    An investigation of investors’ estimates of returns earned and the effect of anchoring on these estimations

    Item type: Journal Article • Journal: South African Journal of Accounting Research
    This study examines overconfidence and anchoring in an investing environment to determine if there is evidence of the phenomenon amongst a sample of academics at participating universities.
  8. Concussion in sport: what is known and what is new?

    Concussion in sport: what is known and what is new?

    Item type: Journal Article • Journal: South African Family Practice
    The aim of this article was to summarise the latest definition of concussion, signs of concussion, as well as important facts on recovery and graduated return to play, for different age groups. New technologies available to the sports physician are...
  9. The inflation-hedging ability of individual shares: Evidence from the Johannesburg Stock Exchange (JSE)

    The inflation-hedging ability of individual shares: Evidence from the Johannesburg Stock Exchange (JSE)

    Item type: Journal Article • Journal: Investment Analysts Journal
    The erosion of purchasing power due to inflation is a source of concern for investors who invest in stocks over long investment horizons.
  10. An analysis of underpricing and aftermarket performance of initial public offerings on the Alternative Exchange (AltX)

    An analysis of underpricing and aftermarket performance of initial public offerings on the Alternative Exchange (AltX)

    Item type: Journal Article • Journal: South African Journal of Accounting Research
    This paper reviews the international evidence of underpricing of Initial Public Offerings and analyses IPO underpricing by companies listing on the South African Alternative Exchange (AltX). Underpricing is indicated by measuring the percentage difference between the initial offer price and...