Search Results - "Dyson, Liesl L."

Severe weather over the Highveld of South Africa during November 2016 by Simpson, Lee-ann, Dyson, Liesl

“…November months are notorious for severe weather over the Highveld of South Africa. November 2016 was no exception and a large number of severe events…”
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heavy rainfall sounding climatology over Gauteng, South Africa, using self-organising maps by Dyson, Liesl L.

“…The daily weather at a particular place is largely influenced by the synoptic circulation and thermodynamic profile of the atmosphere. Heavy rainfall occurs…”
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An ERA‐Interim HAILCAST hail climatology for southern Africa by Dyson, Liesl L., Pienaar, Nita, Smit, Ansie, Kijko, Andrzej

“…Understanding the character of hail is an important part of mitigating its impact on life and property. Climatologies of hail over South Africa are rare and…”
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A baseline climatology of sounding‐derived parameters associated with heavy rainfall over Gauteng, South Africa by Dyson, Liesl L., van Heerden, Johan, Sumner, Paul D.

“…ABSTRACT Irene weather office sounding data are considered a proximity sounding for the Gauteng province of South Africa. Sounding‐derived parameters are…”
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Blocking, gap flow and mountain wave interaction along the coastal escarpment of South Africa by Geldenhuys, Markus, Dyson, Liesl L., van der Mescht, Deon

“…A fatal light aircraft crash occurred in the complex mountainous terrain along the coast of the South African Southern Cape in December 2015. An investigation…”
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Heavy daily-rainfall characteristics over the Gauteng Province by Dyson, Liesl L.

“…Daily rainfall over the Gauteng Province, South Africa, was analysed for the summer months of October to March using 32-yr (1977 to 2009) daily rainfall data…”
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A short-range weather prediction system for South Africa based on a multi-model approach by Dyson, Liesl L., Engelbrecht, Christien J., Engelbrecht, Francois A., Landman, Stephanie, Engelbrecht, Francois A., Landman, Willem A., Landman, Stephanie, Landman, Willem A.

“…The accurate prediction of rainfall events, in terms of their timing, location and rainfall depth, is important to a wide range of social and economic…”
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Characteristics of warm season left-moving supercells over the Highveld of South Africa by Liesker, Christina G., Dyson, Liesl L., Becker, Erik H.

“…A supercell is a type of thunderstorm known to produce severe weather conditions that result in damage to property, injuries, and loss of life. Supercells were…”
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A Meteorological Community Project in South Africa by DYSON, LIESL L.

“…The community project has found a synergy with the projects responsible for the erection of fog water collection systems at rural schools…”
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A statistical scheme to forecast the daily lightning threat over southern Africa using the Unified Model by Gijben, Morné, Dyson, Liesl L., Loots, Mattheus T.

“…Cloud-to-ground lightning data from the Southern Africa Lightning Detection Network and numerical weather prediction model parameters from the Unified Model…”
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Sensitivity of meteorological variables on planetary boundary layer parameterization schemes in the WRF-ARW model by de Lange, Anzel, Naidoo, Mogesh, Garland, Rebecca M., Dyson, Liesl L.

“…The accuracy of meteorological fields produced by Numerical Weather Prediction (NWP) models are highly dependent on the physical parameterization schemes used…”
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The sensitivity of simulated surface-level pollution concentrations to WRF-ARW-model PBL parameterisation schemes over the Highveld of South Africa by de Lange, Anzel, Naidoo, Mogesh, Garland, Rebecca M., Dyson, Liesl L.

“…An understanding of the sensitivity of pollutant concentrations to planetary boundary layer (PBL) schemes in numerical weather prediction (NWP) models can…”
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Estimating particulate matter (PM) concentrations from a meteorological index for data-scarce regions: A pilot study by de Lange, Anzel, Garland, Rebecca M., Dyson, Liesl L.

“…In regions where air quality data are scarce or access thereto is limited, a comprehensive understanding of air pollution is hindered by a lack of emission…”
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A Dynamical Forecasting Perspective on Synoptic Scale Weather Systems Over Southern Africa by Dyson, Liesl L

“…Heavy rainfall and flooding often occur over South Africa. A high percentage of the heavy rainfall events occur over the eastern interior of South Africa and…”
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