As part of the IWAREMA (Integrated Water Resource management for Zambia) project, funded through ESA’s Data User Element, data from ESA’s multispectral MERIS sensor aboard Envisat was used to create maps depicting existing water resources, suitable dam locations and land cover. The project is carried out by the Belgium Company GIM (Geographic Information Management) in partnership with the University of Zambia and the Zambian water authorities.
"The results of the IWAREMA project can be used to protect Zambia’s ecosystems particularly in the Kafue flats where wildlife, agricultural activities, fisheries and tourism compete for regulated water resources," Jack Nkhoma of Zambia’s Department of Water Affairs said.
Having access to these maps allows authorities to determine the expansion of urban areas and loss of forest and agricultural areas as well as calculate the risk of erosion, change in water availability and percentage of surface water, which will allow for early flood warnings.
The land cover change maps will help the government look at past trends in terms of deforestation, reclaimed land and new settlement areas to determine the long term affect and implement corrective measures.
Zambia has one of the highest urban populations in Sub-Saharan Africa, with about 34 percent of the total country population of nearly 11 million people living in urban areas, according to the United Nations Human Settlement Programme. The rate of urbanisation has been unprecedented and has therefore exceeded the rate of infrastructure development and service provision, such as water supply and sanitation.
"With a lot of pressure from population growth and urbanisation, the land cover maps will show how demographic variables and pressures will impact natural resources," Nkhoma said.
The project focused on the Kafue River Basin, which is a sub-basin of the Zambezi River. The Kafue Basin is of great importance to the country’s economy and is home to more than half of the country’s population.
"The IWAREMA project information is useful for our policy makers in decision making for the basin and should be extended to other basins of the Zambezi so as to improve the data situation and make comparisons between areas, as very little information is currently available," Banda Kawawa of the University of Zambia said. "The products have also shown to be cost effective in relation to other conventional methods used."
IWAREMA was one of the projects initiated under ESA’s TIGER initiative, launched in 2002 to assist African countries to overcome water-related problems and to bridge Africa's water information gap using satellite data. To date, more than 100 African water basin authorities, universities and other organisations have become involved in TIGER projects across the continent.
Mariangela D'Acunto | alfa
Bioinvasion on the rise
15.02.2017 | Universität Konstanz
Litter Levels in the Depths of the Arctic are On the Rise
10.02.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...
The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...
Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...
Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".
Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...
13.02.2017 | Event News
10.02.2017 | Event News
09.02.2017 | Event News
22.02.2017 | Power and Electrical Engineering
22.02.2017 | Life Sciences
22.02.2017 | Physics and Astronomy