Articles by Keyword: Wave Climate

Search results for Wave Climate

We found 112 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. Enkele faktore wat die vruggroei van sitrus beïnvloed

    Enkele faktore wat die vruggroei van sitrus beïnvloed

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    'n Ondersoek het aangetoon dat 'n hoogsbetekenisvolle (r = 0,96) verwantskap bestaan tussen waterverbruik van 'n volwasse sitrusboom en vruggroeitempo. Waterverbruik bereik 'n maksimum van 80–90 l/dag gedurende die periode Desember tot einde Maart, dit is dieselfde tyd wanneer vruggrootte...
  3. Estimating Class A pan evaporation at locations with sparse climatic data

    Estimating Class A pan evaporation at locations with sparse climatic data

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Class A pan evaporation was found to correlate closely with daylength-adjusted maximum daily air temperature (ATM), on a bimonthly basis. ATM and altitude were used as variables in a regression analysis to develop a series of evaporation-estimation equations for various...
  4. Factors affecting fruit quality and shelf life of Bon Chretien pears

    Factors affecting fruit quality and shelf life of Bon Chretien pears

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Bon Chretien pears for canning and the fresh market are grown under various climatic conditions in South Africa. The major orchard factor affecting the shelf life of the fruit after storage seems to be the number of days between full-...
  5. An attempt at estimating solar radiation at South African sites which measure air temperature only

    An attempt at estimating solar radiation at South African sites which measure air temperature only

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Daily potential surface radiation values were calculated for selected South African weather stations. These were used, together with various air temperature parameters, to derive regression equations to estimate actual surface solar radiation at sites lacking the required instrumentation. A single...
  6. The base status criterion in South African soil classification

    The base status criterion in South African soil classification

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Evidence is considered which indicates that the sum of extractable bases and acidity, termed the effective cation exchange capacity (ECEC), is a more reliable criterion than the S-value (sum of exchangeable bases only) for differentiating soils in terms of the...
  7. Palmer Drought Indices and Their Application to Plantation Establishment Strategies

    Palmer Drought Indices and Their Application to Plantation Establishment Strategies

    Item type: Journal Article • Journal: The Southern African Forestry Journal
    Palmer drought models are introduced as an objective measure of monthly moisture conditions and their application for forestry research is discussed. A case-study showed that Palmer Hydrological Drought Index was preferred to Palmer Drought Severity Index for deciding on establishment...
  8. Predicting the extent of succulent thicket under current and future climate scenarios

    Predicting the extent of succulent thicket under current and future climate scenarios

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Using data from the distribution records of the facultative CAM succulent shrub Portulacaria afra, and high resolution climate response surfaces, we developed a spatially explicit model of the potential distribution of the species in the Thicket Biome of the eastern...
  9. Response to elevated CO<sub>2</sub> from a natural spring in a C<sub>4</sub>-dominated grassland depends on seasonal phenology

    Response to elevated CO<sub>2</sub> from a natural spring in a C<sub>4</sub>-dominated grassland depends on seasonal phenology

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    A South African C4-dominated grassland was exposed to twice-ambient atmospheric CO2 concentration using gas emitted by a natural CO2 spring and distributed over a 7m x 7m plot. A similar control plot was established 20m away at near-ambient CO2 concentrations...
  10. The impact of grazing on forage quality of the herbaceous vegetation in the Mamora cork oak forest, Morocco

    The impact of grazing on forage quality of the herbaceous vegetation in the Mamora cork oak forest, Morocco

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    This research was conducted in the Mamora cork oak forest of Morocco to describe the impacts of sheep grazing (no use, 35% use, 70% use) in March, April, May and June of 1987 and 1988 on seasonal changes in forage...