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Deciphering the performance of satellite based daily rainfall products over Zambia

Libanda Brigadier, Mie Zheng, Nyasa Linda, Chilekana Ngonga

Acta Geophysica

2020

Vol. 68, no. 3

903--919

The amount and distribution of precipitation plays a vital role in the management of water resources, agriculture and foodrisk preparedness. Unfortunately, Zambia like many other developing countries is a highly data-scarce country with few and unevenly distributed meteorological stations. The objective of this study was to run a comparative analysis of satellite-based rainfall products (SRPs) and gauge data to ascertain the reliability of using SRPs for daily rainfall measurements in Zambia. The four daily SRPs examined in this study include the following: The Tropical Applications of Meteorology using Satellite and ground-based observations version 3 (TAMSATv3), Precipitation Estimation from Remotely Sensed Information using Artifcial Neural Networks (PERSIANN), the Climate Hazards group InfraRed Precipitation with Station data version 2 (CHIRPSv2.0), and the African Rainfall Climatology Version 2 (ARCv2). SRPs were compared to rain gauge data from 35 meteorological, agrometeorological, and climatological stations in Zambia for the period 1998–2015. Statistical analyses were extensively carried out at temporal scales inter alia daily, monthly, seasonal and annual. Comparisons were also done for three stations lying at the highest, middle and lowest elevations to examine the ability of SRPs to capture precipitation occurrences on complex topography. Strong coefcient of determination (>0.9) of all the SRPs and gauge data were found at the monthly scale even over multifaceted topography. However, the ability of these products to capture rain gauge data at daily, seasonal and annual scales difers markedly. Specifcally, PERSIANN outperforms all the other SRPs at all scales, CHIRPSv2.0 is rated second, followed by TAMSATv3 and ARCv2, respectively. These results suggest that PERSIANN can reliably be used in studies that seek to estimate rainfall in data-sparse regions of Zambia at any temporal scale and arrive at similar results to rain gauge data.

Potential for the development of culinary tourism in Zambia

Jasińska Justyna, Charzyński Przemysław, Świtoniak Marcin

Geography and Tourism

2017

Vol. 5, No. 1

101--111

Africa is still relatively undiscovered as a tourist destination. One of the lesser-known countries in Africa is Zambia. The country can offer a wide spectrum of tourist attractions from natural (e.g. Victoria Falls, wildlife safaris) to cultural ones. Discovering the native cuisine can be the main purpose of travel, as in the case of culinary tourism. This paper aims at discussing the possibilities of developing such tourism in Zambia. The indigenous cuisine of this country is based on nshima made from maize flour (mealie-meal). Nshima is mostly eaten with side dishes prepared from different kinds of vegetables, meat, fish or insects. Local people and tourists can buy food in modern shopping centres and restaurants or at local markets where street food is sold. The process of globalization, the development of the country and changes in urban space induce transformation of gastronomic services. The primary stage of this kind of transformation can be observed in the cities of Zambia, so tourists can still quite easily taste authentic local food. Traditional sorghum beers are produced in several countries of Africa. Such beer is known in Zambia as Chibuku, after the market-leading brand. The locals often pass a pot with opaque beer around a circle of friends. Such tasting can also be an attraction for daring lovers of brewery tourism.

Status of radon dosimetry in Zambian underground mines

Hayumbul P., Mulenga S., Nomai M., Mulenga P., Katebe R., Shaba P., Chunga T., Inambao D., Mangala F., Tembo P., Malma Y.

Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa

2004

nr 1

47-49