GRACE (Gravity Recovery and Climate Experiment) satellite can be used to estimate changes in water storage on time resolution of 1 month and a spatial resolution of about 450 x 450 km.
GRACE can be used to estimate groundwater storage changes where it is the dominant water mass. It is therefore useful in many areas of Sub-Saharan Africa where there are relatively few direct groundwater level measurements.
The paper focuses on the major sedimentary aquifers basins, where the majority of Africa’s groundwater resources are to be found. Away from these basins, groundwater storage is 1-2 orders of magnitude less.
There is no evidence of continuous long-term declining trends of Total Water Storage (mostly groundwater) in any of the major sedimentary aquifers, which indicates that none are stressed by current abstraction rates – howeverit is important to stress that local scale depletion may be occurring but is beyond the resolution of GRACE to detect.
There are also some interesting findings in regard to the combination of GRACE and Land Surface Modelling and how well (or not) they represent groundwater recharge processes in the different basins.
Read the full paper here:
Bonsor, H.C.; Shamsudduha, M.; Marchant, B.P.; MacDonald, A.M.; Taylor, R.G. Seasonal and Decadal Groundwater Changes in African Sedimentary Aquifers Estimated Using GRACE Products and LSMs. Remote Sens.2018, 10, 904. http://www.mdpi.com/2072-4292/10/6/904
Millions of people in towns and cities across Sub-Saharan Africa depend on groundwater day-to-day – but is it safe to drink? How can we measure the safety quickly, cheaply and accurately? In this RWSN-UPGro webinar, Dr Jenny Grönwall (SIWI/T-GroUP) and Dr Dan Lapworth (BGS) present the latest updates on their research into urban groundwater monitoring and use, and how it can be improved.
Community-management has been the mainstay of rural water supplies in Africa, and in many other parts of the world, but is it the only way? Are there better alternatives? In this lively webinar, researchers from the UPGro Hidden Crisis project discuss their research with RWSN members:
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On 8th March, Dr Robinah Kulabako, Makerere University and UPGro T-GroUP project, was awarded a Golden Jubilee Media during International Women’s Day by President Yoweri Museveni of Uganda. The award recognises her contribution to research and teaching in environmental engineering and natural sciences and that she is an internationally recognised expert she is an inspiration to girls and young women looking to have a career in science.
New educational resource developed by the Gro for GooD team launched for secondary schools in Kwale County, Kenya to increase understanding of groundwater and water quality
Outreach to schools teaches girls and boys about water science and management
Event held on 17th March to celebrate the collaboration between the UPGro team, the schools, local government and private sector partners.
“You have a very great opportunity through your water clubs, guided by your teachers who are here and who can support you. We should take this as a very special opportunity for all of us”
The UPGro Gro for GooD project has been delivering a programme of engagement to teach young people in Kwale County about water science and management. Water Clubs at 3 secondary schools have been participating in field trips, practical activities, experiments and conducting their own group research projects. This outreach work aims to develop students’ research and communication skills and showcase career options in the water sector.
In the run up to World Water Day 2018, the Gro for GooD project was delighted to welcome Madam Bridget Wambua, Director of Education for Kwale County, Kenya, to provide opening remarks (extract above) at a special event to celebrate the success of the Schools Water Clubs supported by the project over the last year. As the event got going, students listened with great interest to the keynote speech by Prof. Dan Olago from the University of Nairobi, and then took to the stage themselves for a series of presentations about club activities including water quality testing of school waterpoints, the installation and use of rain-gauges on school grounds, and field trips to the Base Titanium mine to see how the mine manages and recycles water in its operation.
Other students presented their own mini-research projects into topics such as water conservation in agriculture and strategies for keeping water safe to drink, and one group gave an excellent explanation of artesian wells based on an email exchange with Gro for GooD hydrogeologist Mike Lane.
Students also brought practical demonstrations and posters to show in the teabreak, including a solar still demonstration from a group of students who had just heard that they are through the local round and have been invited to show their improved solar still design at Kenya’s National Science Fair for schools.
Madame Wambua and Professor Dan Olago then presented the schools, water clubs and club patrons with certificates of appreciation for their hard work and dedication to water-related environmental education, and 2 laptops were given to each club. The laptops were provided by the UK charity IT Schools Africa and preloaded with water-related environmental education resources collated by the Gro for GooD team.
Students also received print copies of a newly published Water Module Student Resource which was developed by the Gro for GooD research team with input from students and teachers at the schools. Mr Joseph Kimtai, teacher and club patron at Kingwede Girls Secondary School, said,
“I find this module of activities about water so helpful to the students – it complements what we are teaching in class. It also encourages critical thinking and solving problems related to the environment which is in line with one of the competencies of the incoming competency-based curriculum for Kenyan schools.”
The resource has been published under a Creative Commons licence so that other educational programmes in Kenya can make use of the content.
Co-author of the Water Module, Nancy Gladstone, said:
“It has been a privilege to work with secondary school students in Kwale County and help to meet their really encouraging thirst for knowledge about water. Education has a vital role in achieving the Sustainable Development Goal for water and we are sure that many of these students will put their learning to good use at school and as they go on to jobs and further education.
“The Water Module event also provided us with an opportunity to thank the teachers, headteachers and local partner organisations such as Base Titanium and Rural Focus Ltd. who have all been critical to the success of the clubs this past year, and to contribute to discussions about building the water module into ongoing education programmes in Kwale County, both formal and informal, so as to reach more students and further enhance learning.”
Groundwater is essential for economic growth and can contribute to human development if resources are used sustainably to benefit the poorest in society. The Gro for GooD (Groundwater Risk Management for Growth and Development) project is striving to help government and groundwater users find a management approach that balances human health, economic growth, and resource sustainability demands and benefits everyone. Project partners are University of Oxford, University of Nairobi, Jomo Kenyatta University of Agriculture and Technology, Universitat Politècnica de Catalunya, Rural Focus Ltd., Kwale County Government, the Government of Kenya’s Water Resources Authority, Base Titanium and KISCOL.
More information about Gro for GooD, which is funded by UK research councils and the Department for International Development, can be found here.