![]() Therefore to better quantify the coastal protection afforded by Artificial reef structures, COEL undertook a physical model testing program in collaboration with Subcon. However, there is presently a lack of established guidelines to design artificial reefs for coastal protection. Artificial reef structures can function similarly to protect coastlines by dissipating wave energy, while also delivering ecosystem services that can offer many additional benefits over conventional hard engineering structures. Natural reef structures (coral or rocky) protect vast portions of the world’s coastline from coastal flooding and erosion. In addition to improving our general understanding of these systems, the results of this work will be used to improve numerical models that are used by coastal engineers around the world.Įmail: Wave Attenuation by Artificial Reefs In this particular experiment, we measured the wave runup in typical salt marsh vegetation for a range of wave conditions and vegetation densities using a video camera, providing a direct indication of the protection provided by this particular ecosystem. The 54-m-long wave flume is ideally-suited for this due to its large scale and advanced piston wave maker allowing for realistic wave generation and minimal scaling. However, there is increasing global recognition that nature-based coastal defence solutions can both reduce the coastal flooding hazard and at the same time provide key ecosystem services.Ī key challenge is reducing the large uncertainty in predictions of coastal safety provided by complex ecosystems such as mangroves, seagrass meadows and salt marshes. Coastal defence solutions have traditionally been based around ‘hard’ engineering structures, such as seawalls, breakwaters and levees. This provides versatility and is vital to progress some application areas such as design of wave energy devices, which may operate in a range of wave conditions.Ĭoastal flooding is a worldwide threat to human safety and infrastructure, and is projected to increase due to sea level rise and the increasing frequency and intensity of extreme events. The use of these two sets of paddles will make the facility unique nationally, enabling research spanning the field of coastal and offshore engineering. Wave paddles have been fitted at either end of the flume, with one set designed to produce shallow (coastal) waves using a piston mechanism and the second set designed to produce deep (offshore) waves with a rotating flap mechanism. Both paddles have state-of-the-art active wave absorption capabilities, which allows them to be absorb arbitrary reflected waves from structures being tested. The piston is a long-stroke version, with total translation of up to 2 m, enabling creation of a wide range of large and long period wave motions. Water depths of up to 1.1 m can be accommodated and two viewing windows (each 4 m long) have been installed along its length. The flume is approximately 54 m long, 1.5 m wide and 1.6 m tall. We tried to access the new desktop feature on iPad by requesting Instagram’s desktop site in Safari and the ability to post is not available for now.The wave flume is unique and world class in the range and quality of the waves it can generate. Pick your filter and/or edit (tab at the top)Īlmost hilariously, Instagram continues to ignore iPad.Follow the prompts to upload your photos or videos (drag and drop or “Select From Computer”). ![]() Click the new + icon in the top right corner to get started (next to the Messenger icon).If the feature is available for you, you’ll see a new pop-up alert at the top of your screen on the Instagram homepage after logging in that says: “Now you can create and share posts directly from your computer.” How to post to Instagram on Mac and PC It’s unclear how widely available the new feature is but it is rolling out now for Mac and PC. Spotted by Matt Navarra, the new feature is live on Instagram’s website and we are seeing the functionality available here at 9to5Mac as well. Check out a closer look below including how to post to Instagram on Mac and PC. The new functionality includes the ability to use filters and edit photos and videos as well. After we got a sneak peek at the feature last month, Instagram has quietly rolled out the option to create and publish posts from its website on desktop (but not on iPad).
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