Articles by Author: M L Gr Uuml Ndlingh

Search results for M L Gr Uuml Ndlingh

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  1. On the satellite-derived wave climate off southern Africa

    On the satellite-derived wave climate off southern Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Significant wave heights obtained from GEOSAT satellite are compared with data from a wave buoy and voluntary observing ships. A versatile and interactive data base of altimeter wave data was created to handle large quantities of satellite information. The data...
  2. Review of cyclonic eddies of the Moçambique Ridge Current

    Review of cyclonic eddies of the Moçambique Ridge Current

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Since 1975, several projects of the National Research Institute for Oceanology in Stellenbosch have been aimed at studying eddies in the south-western Indian Ocean. During this time, attention was specifically focused on the cyclonic deep-sea eddies of the region. The...
  3. The usefulness of <em>Nimbus</em> CZCS imagery in the South-Western Indian Ocean

    The usefulness of <em>Nimbus</em> CZCS imagery in the South-Western Indian Ocean

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Aspects of the South-West Indian Ocean circulation, such as currents and their meanders and eddies, are chromatographically identified in the area 20–40°S, 30–40°E from the level-2 images of the Nimbus-7 Coastal Zone Colour Scanner (CZCS). Notwithstanding the inescapable obstruction presented...
  4. Seasonal and interannual variability in wind field and commercial catch rates of <em>Austroglossus pectoralis</em> (Soleidae)

    Seasonal and interannual variability in wind field and commercial catch rates of <em>Austroglossus pectoralis</em> (Soleidae)

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The impact of deviations in the direction and strength of the wind field on the spatial, seasonal and interannual variability in catch rates of Agulhas sole Austroglossus pectoralis was investigated. Temporal variability in the wind cycle on the Agulhas Bank...
  5. Recovery of <em>Ocotea bullata</em> (Lauraceae) after Fire Damage

    Item type: Journal Article • Journal: South African Forestry Journal
    Fire damage to Ocotea bullata (Lauraceae) may result in crown death but survival and eventual recovery is possible by means of shoot formation. Survival is due to the above-average thickness of the bark of O. bullata and possibly the isolating...
  6. Management of the Coppice Regeneration of <em>Ocotea bullata</em> (Lauraceae)

    Item type: Journal Article • Journal: South African Forestry Journal
    The effects of protecting the coppice shoots of Ocotea bullata (Lauraceae) stumps against bushbuck (Tragelaphus scriptus) browsing were studied. Apart from reducing damage to coppice shoots, protection led to a decrease in the number of shoots per coppice cluster, a...
  7. Decline and Mortality of <em>Ocotea bullata</em> Trees in the Southern Cape Forests

    Item type: Journal Article • Journal: South African Forestry Journal
    Dying trees of Ocotea bullata (Lauraceae) occurred in small groups in certain areas in the medium-moist forests of the southern Cape. Crown health declined significantly (P > 0,01) in the dying groups, but this was not the general trend for...
  8. The Response of <em>Ocotea bullata</em> (Lauraceae) to Flooded Conditions

    Item type: Journal Article • Journal: South African Forestry Journal
    The response of Ocotea bullata (Lauraceae), stinkwood, grown under a range of flooded conditions, was studied. Flooding results in chlorosis and shedding of leaves and may end in death if continued for prolonged periods. Die-back is the result of several...
  9. Rate of <em>Ocotea bullata</em> Decline in Association with <em>Phytophtora cinnamomi</em> at Three Study Sites in the Southern Cape Indigenous Forests

    Item type: Journal Article • Journal: South African Forestry Journal
    Dieback of Ocotea bullata (Lauraceae) associated with the fungal pathogen Phytophtora cinnamoni coincides with waterlogging, fluctuating water availability and drought stress. P. cinnamomi was recovered from areas of obvious dieback as well as from areas of healthy indigenous forest where...
  10. Regeneration Patterns in Planted and Natural Forest Stands Near Knysna, Southern Cape

    Item type: Journal Article • Journal: South African Forestry Journal
    The Diepwalle Arboretum was established in 1926 and consists of a cultivated and uncultivated section. The cultivated section consists of pure stands while the uncultivated section contains both pure and mixed stands. In the cultivated section the understorey vegetation was...