Climate change is changing the environmental condition of rivers; hence, it is no longer possible to manage modern rivers with methods that have been practiced under the past environmental conditions.
A joint research team, including scientists from Korea Institute of Civil Engineering and Building Technology (KICT) and Deltares of the Netherlands, has conducted research on prediction of the future changes in river landscapes using an eco-morphodynamic model applied to an actual river. According to the study result, the vegetation cover will increase continuously until 2031, and the area covered by willow trees will occupy up to 20% of the river area. Using this modeling, efficiency in river management can be achieved by planning management practices in advance.
The eco-morphodynamic model developed by Deltares combines a vegetation model with Delft3D software, which is widely used in the field of river hydraulics. The Delft3D computes flow velocity, water depth and elevation of a riverbed. Then the vegetation model simulates the germination, settlement, growth and mortality of vegetation based on the Delft3D computation. Simultaneously, vegetation properties are converted to flow resistance and fed back into Delft3D.
KICT and Deltares applied the eco-morphodynamic model to Naeseongcheon Stream in Korea, which belongs to a temperate monsoon climate region with large seasonal hydrological fluctuations. Most of the Naeseongcheon Stream has characteristics similar to those of a natural river. As its riverbed is mainly composed of sand, its movement is active due to hydrological fluctuations and vegetation dynamics.
KICT has been conducting long-term monitoring including LiDAR and hydrological surveys and vegetation map production since 2012, before significant vegetation establishment in Naeseongcheon Stream began. These monitoring data were used to build and verify the eco-morphodynamic modeling.
The modeling area is approximately 5 km long with curved reach, located in the middle-lower section of the Naeseongcheon Stream. The width is approximately 300 m, and the grid of the model was constructed considering the actual vegetation distribution that had occurred narrowly along the shoreline.
After conducting modeling with past data (2012-2019 period), the results were compared with the observed data. Compared with the ratio of coverage of tree species shown in the land cover map made with aerial photos, the area's willow trees in the new model showed a similar coverage ratio (In 2014, actual: 2.02%, model: 2.21%). In 2016, the model had adequately reproduced the actual situation by simulating the survival and growth of vegetation in the spring and the mortality of vegetation after the flood.
Considering climate change scenarios, the joint research team performed a long-term modeling of the period 2012 to 2031. The results showed that vegetation cover would continue to increase until 2031, and the area of trees would reach 20% in 2031.
This eco-morphodynamic model, jointly performed by KICT and Deltares, is a fully coupled model that links hydrology, vegetation, and morphology; and is able to reproduce the actual phenomenon better than other models. It has the advantage of increasing model reliability through application and verification in the actual river with abundant observed data. With this model, we can predict future changes in river landscapes as well as ecosystem diversity and potential flood risks due to vegetation development.
"This eco-morphodynamic model is able to aid decision making for implementing appropriate river and vegetation management by simulating the landscape of future rivers according to climate change, though it needs continuous improvement to reflect the complexity of real rivers," said Dr. Lee, who took part in the research.
Provided by National Research Council of Science & Technology
Citation: Predicting the future landscape of a river (2022, December 8) retrieved 9 December 2022 from https://phys.org/news/2022-12-future-landscape-river.html
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(MENAFN- Procre8) Riverbed has promoted Charbel Khneisser to the position of Vice President, Solutions Engineering for Europe, Middle East, and Africa (EMEA). Khneisser who previously served as the company’s Regional Director, Technical Sales for the Middle East, Turkey and Africa (META) region now sees his role expand with a significant focus on strategic planning, cross-functional alignment, best-practice development and sharing, and empowering the company’s regional Solution Engineering teams. With his vast technical expertise and years of experience as a trusted industry commentator, he will also serve as the company’s primary technology evangelist in the EMEA.
Khneisser reports to Elie Dib, Senior Vice President, EMEA, at Riverbed. “Following our vision and brand launch earlier this year, Riverbed is primed for a new phase of sustained growth,” said Dib. “Our two industry-leading portfolios – Alluvio Unified Observability and Riverbed Acceleration – arm organisations with the solutions they need to thrive in the digital world. Charbel has a wealth of hands-on expertise, competitor knowledge and industry influencing skills, and I’m excited to see him bring his enthusiasm, energy, and strong skillset to this new role. I have worked closely with him for many years, and I’m confident he is the ideal candidate to lead our technical teams and evangelise the market around the unique value proposition that we bring to our industry.”
In addition to leading the Riverbed EMEA solutions engineering teams, Khneisser will closely engage with key regional enterprise customers and partners to understand their business strategies, objectives, and challenges and address these through the implementation of appropriate solutions from the company’s Unified Observability and Acceleration portfolios. By working closely with customers and partners, he will look to optimise feedback collection, and guide further product feature enhancements. With Riverbed’s solutions being fundamental to the broader technology ecosystem of the modern, hybrid enterprise, Khneisser will also collaborate closely with the company’s Technology Alliance partners to create tailored solutions that drive the overall value for customers.
Khneisser is a technology industry veteran with over 18 years’ experience, having served half of his tenure in various technical and leadership roles at Riverbed. Commenting on his promotion, Khneisser said, “I’m excited to take on the added responsibilities that enable me to play to my strengths in technical advisory, team leadership, customer engagement, and solution delivery, as I look to empower our customers in EMEA to unlock the full potential of our solutions. During my career, I have worked for enterprises – in both the public and financial services sectors – as well as in Value Added Distributors, Consultancy firms and technology vendor organisations. This first-hand experience has given me a comprehensive understanding of the entire value chain which I will leverage to ensure optimal outcomes for our customers.”
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SAN FRANCISCO--(BUSINESS WIRE)--Riverbed® today announced Riverbed Community Connect, a company-wide volunteer effort to supply back to the communities where employees live and work across the world. This year, to celebrate the Company’s 20th anniversary, Riverbed employees will participate in volunteer projects spanning 20 days – starting November 10 and concluding on November 29, Giving Tuesday – providing over 2,000 hours of community service during that time. Riverbed Community Connect, launched earlier this year, encourages volunteering at non-profit organizations, providing employees with up to five volunteer days off annually.
LinkedIn: Riverbed kicks off Community Connect initiative with ‘20 Days of Service’ in November and program provides up to five volunteer days off annually: https://rvbd.ly/3UpbEVg
“Since its founding in 2002, Riverbed has been deeply committed to community service and volunteer programs that make a positive impact on the world, on a global and local level,” said Dan Smoot, President and Chief Executive Officer of Riverbed. “It is with great pride that we launched the Community Connect initiative on the 20th anniversary of the Company to provide employees with up to five volunteer days annually to volunteer locally in their communities or anywhere around the world. In commemorating this milestone, Riverbed is launching ‘20 days of Service’ this month, where we’ll come together as a company to provide thousands of hours of community service, and make a meaningful difference for charitable organizations that help support people – including those underserved – our communities, and important causes.”
Riverbed Community Connect volunteers will participate in group projects in the following cities:
Additionally, many employees in smaller offices or working out of home offices are volunteering at local projects in their communities and virtually through several projects led by Goodera, an organization that matches employees to virtual volunteer opportunities.
During the Riverbed Community Connect initiative “20 Days of Service” in November to commemorate the 20th anniversary of the Company, Riverbed will support these charitable organizations, as well as many others:
A Wider Circle (Silver Spring, MD) |
Grand Central Neighborhood Social Services Corp. (NYC, NY) |
Al Noor (Dubai, UAE) |
Karunashraya (India) |
Ananya Trust (India) |
Manna Food Center (Gaithersburg, MD) |
Anudip Foundation (India) |
O Masa Calda (Cluj, Romania) |
BADU, London (UK) |
Ronald McDonald House Charities (California, USA) |
Backpacks for VIC kids (Australia) |
Sebastian's Action Trust (UK) |
Bucks & Oxon Wildlife Trust (UK) |
Second Harvest Food Bank (San Jose, CA) |
Civic Support (Cluj, Romania) |
SF Marin Food Bank (San Francisco, CA) |
Contra Costa Food Bank (Concord, CA) |
The Nelson Mandela Children’s Hospital Trust (South Africa) |
Cornerstones (Reston, VA) |
Ted Noffs Foundation (Australia) |
DOROT (U.S.) |
The Wish Project (North Chelmsford, MA) |
Food Bank of Central and Eastern North Carolina, (Durham, NC) |
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Over the past 20 years Riverbed has evolved into a company that is proven yet agile and trusted by thousands of partners, and market-leading customers globally – including 95% of the FORTUNE 100. Riverbed is focused on helping to make a difference and drive real impact for organizations, as they accelerate their digital strategies, and deliver seamless, secure digital experiences to users everywhere. As we enter the season of giving, Riverbed is giving employees an opportunity to make a difference in the communities we live and work in and deepening our partnerships with charities globally while organizing new volunteer efforts.
About Riverbed
Riverbed is the only company with the collective richness of telemetry from network to app to end user, that illuminates and then accelerates every interaction, so organizations can deliver a seamless digital experience and drive enterprise performance. Riverbed offers two industry-leading portfolios: Alluvio by Riverbed, a differentiated Unified Observability portfolio that unifies data, insights, and actions across IT, so customers can deliver seamless, secure digital experiences; and Riverbed Acceleration, providing fast, agile, secure acceleration of any app, over any network, to users anywhere. Together with our thousands of partners, and market-leading customers globally – including 95% of the FORTUNE 100 – we empower every click, every digital experience. Riverbed. Empower the Experience. Learn more at riverbed.com
Riverbed, Alluvio and certain other terms used herein are trademarks of Riverbed Technology LLC. All other trademarks used herein belong to their respective owners.
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Authorities are investigating the discovery of a body near the Los Angeles Riverbed in Long Beach.
The body was discovered at around 6:20 a.m. near the riverbed and Pacific Coast Highway, according to Long Beach Police Department.
The circumstances surrounding the incident were not immediately clear.
Police did not disclose the gender or identity of the deceased person.
As investigators surveyed the scene, they directed traffic away from the area.
Dir. Bassem Breche. Lebanon, Qatar. 2022. 78 mins.
Bassem Breche’s feature directorial debut, previously titled The Maiden’s Pond, is ostensibly about a mother and daughter in a small Lebanese village and is a film which relies heavily on natural beauty, atmospherics and mood to carry a slim story through. (Even that description perhaps over-sells the narrative, as the daughter only arrives at the 40-minute mark, and very few words are exchanged throughout). A talented visualist, Breche has impressed with a series of short films – his first, Both, premiered at Cannes Critics Week in 2007 – and Riverbed is replete with imagery to treasure, apart from being a masterclass on how to turn a central venue from a haven into a prison and back again fusing space and light. However, it lacks the energy and connection to take it from short-film terrain into fully-fledged narrative that might be of wider appeal.
Breche’s feature debut wants to speak to the audience in images
Premiering in Cairo in the Arab Competition, the introspective Riverbed will find fans in the more rarefied end of festival programming, and may well travel that circuit, although other exposure is less easy to predict. It’s certainly an enigmatic piece from its very first moments, setting out its stall for what is to come with light filtering through the blinds of a bedroom in a villa, slowly making out the shape of the main character, Salma (Carole Abood) as she rises to face another day.
This is a film which uses mirrors, and the back of Salma’s head, extensively — one key shot is a complicated double-reflection – and is careful with its placement of the horizon, frames, slats and diagonals. A rear shot watches her looking out to the terraces from her balcony, for example, but later exteriors will show this grand-looking house is a little less elegant than it originally appears. Salma seems to run some sort of business from her front room, but Breche isn’t too concerned with explaining her life. She gets changed into a tracksuit to go for a walk, gets changed again and goes for a drive with her married lover Waheeb (Rabih El Zaher); although they don’t talk much, she seems happy.
Time passes. She goes to a Tupperware party, and walks out. Masturbates. Net curtains float around her house, and two peculiar women seem to follow her around — perhaps looking for gossip about Waheeb. Someone who owes her money talks about a sniper, and there’s the occasional sound of gunshot as Salma and Waheeb sit on rocks looking at a majestic waterfall. He says he doesn’t want to cause a scandal. She tells him they shouldn’t see each other any more.
When he daughter Thuraya (Omaya Maleaeb) arrives, Riverbed’s palette suddenly darkens. We see cracks on the walls of Salma’s breeze block house. Thuraya doesn’t talk to her mother very much, but we can ascertain that she has left her husband, is pregnant, and doesn’t want the baby.
Credit goes to the technical team for the visual realisation, although editing by Rana Sabbagha seems to further obscure something which is already hard to penetrate. Breche’s feature debut wants to speak to the audience in images, narrowing its scope as it goes along until nature is all that is left as this mother and daughter tentatively approach each other through trauma.
Production companies: The Attic Productions, Metaphora
International sales, wehbejana@yahoo.com
Producers: Jana Wehbe
Screenplay: Ghassan Salhab, Bassem Breche
Cinematography: Nadim Saoma
Production design: Wael Boutros
Editing: Rana Sabbagha
Music: Sharif Sehnaoui
Main cast: Carole Abood, Omaya Maleaeb, Rabih El Zaher