Search Results - "Petersen, Leif"

High-frequency ocean radar support for Tsunami Early Warning Systems by Dzvonkovskaya, Anna, Petersen, Leif, Helzel, Thomas, Kniephoff, Matthias

“…A high-frequency (HF) ocean radar system is a shore-based remote sensing system to simultaneously monitor ocean surface currents, waves and wind far beyond the…”
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Small Area Census Approach to Measure the Township Informal Economy in South Africa by Charman, Andrew J. E., Petersen, Leif M., Piper, Laurence E., Liedeman, Rory, Legg, Teresa

“…In this article, we describe a research approach to undertaking a small area census to identify informal economy activity, using a mixture of quantitative and…”
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Trade dynamics in Cape Town township informal foodservice - a qualitative and supply chain study by Petersen, Leif M, Charman, Andrew JE, Kroll, Florian J

“…The township cash economy of fast food, takeaways, and prepared meals is collectively termed 'informal foodservice'. An analysis of a five-township ∼3800…”
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Perspectives of wild medicine harvesters from Cape Town, South Africa by Hockings, Marc T., Petersen, Leif, Reid, Andrew M., Moll, Eugene J.

“…Cape Town is a fast-growing cityscape in the Cape Floristic Region in South Africa with 24 formally protected conservation areas including the World Heritage…”
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Understanding resilience capitals, agency and habitus in household experiences of water scarcity, floods and fire in marginalized settlements in the Cape Flats, South Africa by Ncube, Sikhululekile, Wilson, Anna, Petersen, Leif, Black, Gillian, Abrams, Amber, Carden, Kirsty, Dick, Liezl, Dickie, Jennifer, Gibson, Lesley, Hamilton-Smith, Niall, Ireland, Aileen, Lamb, Guy, Mpofu-Mketwa, Tsitsi, Piper, Laurence, Swanson, Dalene M.

“…A significant percentage of the urban population in most low- and middle-income countries live in informal settlements. Due to poor quality housing, dense…”
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"Bush Doctors and Wild Medicine": The Scale of Trade in Cape Town's Informal Economy of Wild-Harvested Medicine and Traditional Healing by Petersen, Leif M., Charman, Andrew J. E., Moll, Eugene J., Collins, Ray J., Hockings, Marc T.

“…South Africa's organically emerged cultural business of traditional healing is almost exclusively reliant on wild-harvested resources extracted from wilderness…”
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Enforced informalisation: The case of liquor retailers in South Africa by Charman, Andrew JE, Petersen, Leif M, Piper, Laurence

“…After a decade of unsuccessful efforts to migrate informal businesses to South Africa's formal economy there remains little understanding of the dynamics in…”
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Runoff and losses of soil and nutrients from small watersheds under shifting cultivation (Jhum) in the Chittagong Hill Tracts of Bangladesh by Gafur, Abdul, Jensen, Jens Raunsø, Borggaard, Ole K, Petersen, Leif

“…The effect of traditional shifting cultivation practices using slash and burn (locally known as Jhum) on runoff and losses of soil and nutrients was…”
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Sustainability Appraisal of Shifting Cultivation in the Chittagong Hill Tracts of Bangladesh by Borggaard, Ole K, Gafur, Abdul, Petersen, Leif

“…An integrated socioeconomic and erosion study on the sustainability of traditional shifting cultivation (Jhum) carried out in 1998 and 1999 in the Chittagong…”
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The role of family in the township informal economy of food and drink in KwaMashu, South Africa by Petersen, Leif, Charman, Andrew

“…Purpose The purpose of this paper is to provide a qualitative investigation of family employment dynamics in the KwaMashu township economy…”
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'Hampers' as an effective strategy to shift towards sustainable diets in South African low-income communities by Coste, Madeleine, Pereira, Laura, Charman, Andrew, Petersen, Leif, Hawkes, Corinna

“…Transitioning towards sustainable diets is imperative to avoid the worst effects of climate change, environmental degradation, and malnutrition. In South…”
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HF Radar Real-Time Alert to a Tsunami-Like Disturbance at Tofino on January 5, 2020: Surge or Tsunami? by Heron, Mal, Domps, Baptiste, Guerin, Charles-Antoine, Wang, Manman, Petersen, Leif

“…A real-time alert issued by a high frequency (HF) Wellen radar (WERA) at Tofino on January 5, 2020 was identified as a possible meteotsunami because of the…”
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Living the life of floods: Place-based learning in an Anthropocene harmscape by Wilson, Anna, Dick, Liezl, Ncube, Sikhululekile, Dickie, Jen, Abrams, Amber, Black, Gillian, Blair, Nicola, Carden, Kirsty, Hamilton-Smith, Niall, Lamb, Guy, Mpofu-Mketwa, Tsitsi, Petersen, Leif, Robertson, George

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Decay without mourning: future-thinking heritage practices by Lambrechts, Lizabé, Lindström, Kati, Hansen van der Watt, Lize-Marié, Pitta, Fernanda, Deane, Nicola, Moreschi, Bruno, Petersen, Leif

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Sultans of Science: An Opportunity Lost by PETERSEN, LEIF INGE REE

“…Petersen reviews The Sultans of Science, a traveling exhibition hosted in Oslo at the Norwegian Museum of Science and Technology…”
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Formalising urban informality: micro-enterprise and the regulation of liquor in Cape Town by Charman, Andrew, Herrick, Clare, Petersen, Leif

“…In early 2012, South Africa's Western Cape Province enacted new alcohol control legislation amid mounting concern with the costs of alcohol-related harms. This…”
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Ocean Radar for Monitoring of Coastal Zones - new aspects after getting a world wide frequency allocation for these instruments by Helzel, Thomas, Hansen, Birgit, Kniephoff, Matthias, Petersen, Leif, Valentin, Markus

“…This paper shows how in the future, primary (under some restrictions) and secondary frequency bands will be allocated worldwide for these powerful…”
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Ocean Radar for Monitoring of Coastal Zones – new aspects after getting a world wide frequency allocation for these instruments by Helzel, Thomas, Hansen, Birgit, Kniephoff, Matthias, Petersen, Leif, Valentin, Markus

“…Helzel, T., Hansen, B., Kniephoff, M., Petersen, L., Valentin, M., 2013. Ocean Radar for Monitoring of Coastal Zones – new aspects after getting a world wide…”
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Influence of arbuscular mycorrhizal fungi on soil structure and aggregate stability of a vertisol by Bearden, B.N, Petersen, L

“…The influence of arbuscular mycorrhizal (AM) fungi on aggregate stability of a semi-arid Indian vertisol was studied in a pot experiment in which Sorghum…”
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Oceanography radar system WERA: features, accuracy, reliability and limitations by KNIEPHOFF, Matthias, HELZEL, Thomas, PETERSEN, Leif

“…The WERA system (WavE RAdar) is a shore based remote sensing system to monitor ocean surface currents, waves and wind direction. This long range, high…”
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