Bathymetry is a study of underwater depth which can map large or small scale bodies of water. It is one way to measure, manage and explore water bodies. Earliest bathymetric systems used premeasured anchors or ropes to measure the depth of water on a single point of time. Bathymetry, until now has been used for a wide range of applications such as feature extraction, coastal mapping, road map guide for sea navigators, monitor erosions, monitor water rise, and classify the behavior of the community
Multiple satellite methods exist for remote sensing of rip currents each with their own benefits and drawbacks. Photobathymetry, currents interaction using with Synthetic Aperture Radars (SARs), wave refraction, and wave kinematics bathymetry (WKB) are current technologies that are used most often due to the current satellite knowledge. Each of these techniques can be applied using low orbit satellites that are already currently orbiting Earth. All techniques aside from WKB have been tested as satellites
The Grand Ethiopian Renaissance Dam (GERD) is a gravity dam on the Blue Nile River in Ethiopia currently under construction. The dam will be the largest hydroelectric power plant in Africa when completed. The reservoir at 63 billion cubic meters will be one of the continent’s largest. The potential impacts of the dam have been the source of severe regional controversy. The dam could be at risk from damage by earthquakes, yet no one knows if it has even been analyzed for this risk, or the largest
I am applying for the 2017 Ocean Science Research Experiences for Undergraduates (REU) Program. I am interested in the program due to the amount of additional knowledge I can gain from being around some of the top minds in the marine industry. I have developed a fascination for underwater robotics and their practical applications in the industry and I have been involving myself in the as many aspects of the field as I can at Northwestern Michigan College where I am currently enrolled in their Bachelor
General The word “tsunami” comes from the Japanese, in which “tsu” stands for harbor and “nami” means wave. Another name for tsunamis are seismic sea waves. A tsunami is defined as an ocean wave with long wavelengths that are produced by a landslide, volcano, or earthquake. After a tsunami is generated, the waves move very rapidly across the ocean, reaching speeds over 435 miles per hour. In open and deep waters, a tsunami may have a wavelength of 125 miles and a height around 1.5 feet making it
as Swath echosounders are used for bathymetric coverage and nature of the sea bed for a survey area. It uses the time it takes for the sound wave to return to produce three dimensional characteristics and depths for the sea floor also known as bathymetry. They were developed by the US Navy and General Instrument to provide aids to underwater navigation for their submarine fleet. It is usually a hull mounted sonar system that provides a swath area coverage of the sea floor. The coverage of the
15% of all damaging tsunamis were triggered by strike-slip earthquakes. However, this type of earthquake is less likely to trigger a tsunami than one with vertical motion. Tsunamis are generated by associated landslides or motion of a sloping bathymetry (seafloor) feature and normally affect regions near the source only.The less common cause of a tsunami is a large volcanic eruption causing
Long gestation time It takes a long time for planned tidal energy plants to be constructed and to get them running. Such a long gestation period, along with the high costs of construction, may not be considered worth the investment compared with other renewable energy projects such as wind and solar energy. Distance from the grid In many cases, the energy generated by the tides is a long distance from where the electricity will be consumed inland. This makes it difficult for tidal energy to provide
Have you seen beached whales? These massive creatures strand themselves on the beach, alone or in a group, the whims of the moon’s tidal forces. Sometimes, a single whale trapped by the moon’s pull calls in distress, drawing the sympathy of the whole pod, a case of symphony dooming the whole community stranded on the beach to a slow death. In “Why we care about whales”, Marina Keegan writes about witnessing fifty or so stranded pilot whales “lying along the stretch of beach in front of her house
Sea http://www.dfd.dlf.de/app/land/aralsee/chronology.html Picture 1. Chronology of the dessication of the Aral Sea The series of images were derived by satellite remote sensing data and conventional data (WDB II for the mask of 1960, bathymetry for the year of 2010).