Delta Alliance News and Events Archive

A Century of Riverbank Protection and River Training in Bangladesh A collaboration between Canadian Northwest Hydraulic Consultants and Bangladesh Water Development Board resulted in a scientific paper about riverbank protection and training in Bangladesh, published in the journal Water 2020. The authors share which challenges came up when they tried to stabilize the riverbanks. Now, they realise that no construction is permanent with the mighty rivers in the Bangladesh delta. A summary of lessons learned concludes the impressive progress made.
Knut Oberhagemann, A.M. Aminul Haque, Angela Thompson in Special Issue Studies on River Training, Tuesday 27 October 2020
Delta Alliance Ghana Wing Report of the Volta Delta Status and trends This report presents a study on factors contributing to challenges and opportunities experienced in the Volta Delta today. Each of these factors – from population growth and migration, to economic development and industry, and to climate change and sea level rise – contribute to ongoing changes within the Ghana Delta. Challenges related to flooding and erosion, salt water intrusion, irrigation, drainage, and sanitation, are extensively discussed in this report, after which an overview of adaptive measures and technical methods and tools to support sustainable delta management for the Volta Delta is provided.
Acacia Water, Deltares, The Development Institute, The University of Ghana, Delta Alliance Ghana Wing, Friday 2 October 2020
Delta Alliance Benin Wing Report of the Oueme Delta Status and Trends This report presents an assessment done by the Delta Alliance Benin Wing, and depicts a diversity of drivers of change including socio-economic, climatic and institutional factors contributing to current pressures and opportunities. The report indicates how for example hydrological disturbances, flooding and salinization cause contemporary challenges, but also presents opportunities for improved institutional/organizational aspects of sustainable delta management. Guiding principles and concrete recommendations for practical approaches of sustainable delta management are provided.
Acacia Water, Deltares, Delta Alliance Benin Wing, Thursday 1 October 2020
Bangladesh Delta Bulletin, no. 4 This quarterly newsletter contains short messages, news and announcements, with the objective to share knowledge and experience related to adaptive delta management and the implementation of the Bangladesch Delta Plan. This bulletin: JCP Hackathon, Gobeshona 6, UDW-Planning Toolkit, ICSD4, senior management meeting JCP, inaugural lecture Prof. Saleemul Huq, SWAp modelling training, recent papers and the agenda.
Delta Alliance International Secretariat, Tuesday 4 August 2020
Towards sustainable river management of the Dutch Rhine river Havinga River Dynamics published a paper in Water 2020 about sustainable river management of the Dutch Rhine river. According to the author recurrent sediment management measures needs to be combined with extensive structural measures to combat adverse effects without losing societal functions of the Rhine.
Hendrik Havinga in Special Issue Studies on River Training, Friday 26 June 2020
Booming Bangladesh Cooperation between Bangladesh and the Netherlands has intensified in recent decades. While Bangladesh experiences rapid and strong economic growth, new challenges and opportunities emerge in the water sector. Delta expert and publicist Joep Janssen travelled to the capital Dhaka (before the corona crisis), to gain a better understanding of the local water sector and show the changes that have been jointly initiated.
Dutch Water Sector, Monday 8 June 2020
From Capacity Development to Implementation Science Several people from Delta Alliance jointed the IHE Delft symposium 'From Capacity Development to Implementation Science' on May 26-29, 2020. It was the 6th edition of this international symposium on knowledge and capacity development for the water sector. Videos of the plenaries and selected webinars are available in a YouTube playlist
Delta Alliance Secretary, Friday 29 May 2020
JCP Bangladesh-The Netherlands, newsletter April 2020 This newsletter of the Joint Cooperation Programme Bangladesh–The Netherlands is about the Corona virus, the annual meeting & field visit, the Plenary session in ICSD4, progress in 2019, the Bangladesh Meta Model, DWKD2019, the successful H@CKATHON and makes a closure with relevant upcoming events.
Joint Cooperation Programme Bangladesh–The Netherlands, Thursday 9 April 2020
Collective learning by Delta Alliance Wings The Delta Alliance advocates peer learning, referred to as Delta2Delta learning. In the period 18-20 November 2019, a Delta2Delta learning process has been organized between Bangladesh and Egypt. What are the lessons learned? What are conditions for effective Delta2Delta learning?
Delta Alliance Secretary, Monday 30 March 2020
Geophysical Research Letters publication: 'Scale‐Dependent Evanescence of River Dunes During Discharge Extremes' Abstract: During high river discharge extremes, the growth of dunes can reach a maximum beyond which a transition to upper stage plane bed may occur, enhancing the river's conveyance capacity and reducing flood risk. Our predictive ability of this bedform regime shift in rivers is exclusively built upon high Froude number flows dominated by asymmetric dunes with steep downstream‐facing slipfaces that are rare in natural rivers. By using light‐weight polystyrene particles as a substrate in an experimental flume setting, we present striking dune morphodynamic similarity between shallow laboratory flow conditions and deep rivers, preconditioned that both flow and sediment transport parameters are accurately scaled. Our experimental results reveal the first observation of upper stage plane bed in a shallow laboratory flume that is reached for a Froude number well below unity. This work highlights the need to rethink widely used dune scaling relationships, bedform stability diagrams, predictions of flow resistance, and flood risk.
S. Naqshband & A.J.F. Hoitink, in Geophysical Research Letters, Friday 6 March 2020
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