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Browsing by Subject "Southern Africa"

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Aerosol measurements over Southern Africa using LIDAR, satellite and sun-photometer

Author: Sivakumar, V ; Tesfaye, M ; Alemu, W ; Moema, D ; Sharma, Ameeth ; Bollig, C ; Mengistu, G Date: Aug 2009 This presentation provides aerosol measurement over Southern Africa, using LIDAR, satellite and sun-photometer. Aerosol formation and processes are also given. Read more
Africa burning: a thematic analysis of the Southern African regional science initiative (SAFARI 2000)

Author: Swap, RJ ; Annegarn, HJ ; Suttles, JT ; King, MD ; Platnick, S ; Privette, JL ; Scholes, RJ Date: Jul 2003 The Southern African Regional Science Initiative (SAFARI 2000) was a major surface, airborne, and space borne field campaign carried out in southern Africa in 2000 and 2001 that addressed a broad range of phenomena related to land-atmosphere ... Read more
Analysis of potential coastal zone climate change impacts and possible response options in the southern African region

Author: Theron, AK ; Rossouw, M Date: Nov 2008 The aim of this paper is to consider physical coastal zone impacts due to expected climate change in the Namibia, South Africa and Mozambique coastal region, and to provide some mitigating response options. The primary effects of climate ... Read more
Antarctic stratospheric ozone and seasonal predictability over southern Africa

Author: Engelbrecht, FA ; Ndarana, T ; Morioka, Y ; Behera, S ; Thatcher, M ; McGregor, JL Date: Sep 2015 The impact of time-varying Antarctic stratospheric ozone on southern African summer climate variability is explored through atmospheric global circulation model (AGCM) sensitivity experiments. A control experiment following the design of the ... Read more
Approach to modelling spatial changes of plant carbon: nitrogen ratios in southern Africa in relation to anticipated global climate change

Author: Kunz, RP ; Schulze, RE ; Scholes, RJ Date: Mar 1995 The carbon to nitrogen (C: N) ratio is the main factor determining the forage quality of a plant, with a low C: N ratio indicating relatively good plant digestibility and a high C: N ratio inferring relatively poor forage quality. Global ... Read more
Assessment of ozone impacts on vegetation in southern Africa and directions for future research

Author: Van Tienhoven, AM ; Otter, L ; Lenkopane, M ; Venjonoka, K ; Zunckel, M Date: Mar 2005 Levels of background ozone in Southern Africa are high enough to cause concern, as they frequently exceed the 40 ppb threshold currently adopted by the United Nations Economic Commission for Europe. They also surpass the exposure index of ... Read more
Atmospheric modelling

Author: Landman, WA ; Engelbrecht, F Date: Mar 2010 The basic concepts of models and how they are used for weather and climate projection are presented. Read more
Atmospheric research in Southern Africa and Indian Ocean: a South Africa-France bilateral collaborative programme

Author: Sivakumar, V ; Delmas, R Date: Sep 2009 In the present context of global changes, atmospheric and climatic research should be more organized in the framework of international collaborations and research networks. In this paper, researchers provide details about the instrument to ... Read more
Beyond the drip-line: a high-resolution open-air Holocene hunter-gatherer sequence from highland Lesotho

Author: Mitchell, P ; Plug, I ; Bailey, G ; Charles, R ; Esterhuysen, A ; Thorp, JL ; Parker, A ; Woodborne, S Date: Mar 2011 The activities of hunter-gatherers are often captured in rockshelters, but here the authors present a study of a riverside settlement outside one, with a rich sequence from 1300 BC to AD 800. Thanks to frequent flooding, periods of occupation ... Read more
Building on the links between climate change adaptation and disaster risk reduction

Author: Vincent, K ; Mambo, Julia Date: Sep 2017 Climate change adaptation and disaster risk reduction are closely related. Both address the same risks as well as the same objectives when dealing with climate change impacts. This chapter discusses the linkages between these two - especially ... Read more
Building on the links between climate change adaptation and disaster risk reduction

Author: Vincent, K ; Mambo, Julia Date: Sep 2017 Climate change adaptation and disaster risk reduction are closely related. Both address the same risks as well as the same objectives when dealing with climate change impacts. This chapter discusses the linkages between these two - especially ... Read more
Climate risk and vulnerability: A handbook for Southern Africa

Author: Davis, Claire L ; Vincent, K Date: Oct 2017 The handbook (Climate Risk and Vulnerability: A Handbook for Southern Africa) was conceived and designed with the intent to provide decision-makers with up-to-date information, appropriate for country planning, on the impacts and risks of ... Read more
Climate variability, perceptions and political ecology: Factors influencing changes in pesticide use over 30 years by Zimbabwean smallholder cotton producers

Author: Zinyemba, C ; Archer, Emma RM ; Rother, H-A Date: May 2018 Pesticides represent a potential public health hazard of note in farming communities. Accumulating evidence indicates that some pesticides used in agriculture act as hormone disrupters, with the potential to result in chronic health effects. ... Read more
Dye-sensitised solar cell (artificial photosynthesis)

Author: Le Roux, Lukas J ; Arendse, C ; Hietkamp, S Date: Feb 2006 As fuel sources become depleted, there is an increasing need to turn to alternative sources of energy. Of particular interest, especially in southern Africa, is solar energy, since it is clean and abundant. A novel system that harnesses solar ... Read more
Electricity supply and demand scenarios for the Southern African power pool

Author: Spalding-Fecher, R ; Senatla, Mamahloko ; Yamba, F ; Lukwesa, B ; Himunzowa, G Date: Feb 2017 The study presents long-term electricity supply and demand scenarios for the twelve countries in the Southern African Power Pool, based on detailed bottom-up demand analysis for all countries and a set of internally consistent development ... Read more
Formalising Living Labs to achieve organisational objectives in emerging economies

Author: Smit, D ; Herselman, Martha E ; Eloff, JHP ; Ngassam, E ; Venter, E ; Ntawanga, F ; Chuang, C-H ; Van Greunen, D Date: May 2011 The purpose of this paper is to indicate how Living Labs (LL) are organized and applied as part of the research mandate of the SAP Research Pretoria in South Africa. This will be done by exploring existing definitions of LLs. This is followed ... Read more
Improved stoves in Southern Africa: a solution for all seasons

Author: Mapako, MC Date: Apr 2011 Biomass fuels dominate the national energy balances of most sub-Saharan African countries, with wood contributing 80-90% of poorer countries like Ethiopia, Tanzania, the Democratic Republic of Congo and Mozambique. The predominant method of ... Read more
Influence of horizontal resolution and ensemble size on model performance

Author: Dalton, A ; Landman, WA Date: Oct 2014 Computing costs increase with an increase in global model resolution and ensemble size. This paper strives to determine the extent to which resolution and ensemble size affect seasonal forecast skill when simulating mid-summer rainfall totals ... Read more
Interpreting the green economy: emerging discourses and their considerations for the Global South

Author: Faccer, K ; Nahman, Anton ; Audouin, Michelle A Date: May 2014 The green economy concept promises to provide a concrete roadmap to the implementation of sustainable development while delivering significant social and economic benefits and reduced environmental risks. However, the concept of a green ... Read more
Land and agronomic potential for biofuel production in Southern Africa

Author: Von Maltitz, Graham P ; Van der Merwe, Martina R Date: Apr 2017 The Southern African region, from a purely biophysical perspective, has huge potential for biofuel production, especially in Mozambique and Zambia. Although many of the soils are sandy and acidic, with careful management and correct fertilization, ... Read more

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