Why The First Complete Map of the Ocean Floor Is Stirring Controversial Waters Charting these watery depths could transform oceanography. The features mapped on the ocean floor disproved continental drift. Climate change has impacted the flow of these currents, and more knowledge about them would help scientists create models forecasting the future behaviour of the climate, including sea-level rise.A map of the entire global ocean floor would also help further achieve the United Nations Sustainable Development Goal to conserve and sustainably use oceans, seas and marine resources.The global initiative is a collaboration between Japan’s non-profit Nippon Foundation and the General Bathymetric Chart of the Oceans (GEBCO). [Get our best science, health and technology stories. The contraction theory implied that Earth's features formed through the process ofWhat data did Wegener use to prove that the continents had once been joined together?Although Wegener proposed his continental drift theory in 1915, it was not widely accepted until the 1960s. What are the risks involved?India now contributing highest number of Coronavirus cases in the world Why not?Who proposed the theory of seafloor spreading based on maps of the ocean floor?Why was the mapping of the ocean floor such an important step in the development of plate tectonic theory?Which feature on the ocean floor caused Hess to suggest the presence of subduction zones?When did the Pangaean supercontinent begin to break up?Vine and Matthews are considered to have discovered the final proof for seafloor spreading. What were they able to show based on magnetic bands?Plate tectonic theory fundamentally altered how geologists view the earth. It also provides key inputs for navigation, forecasting tsunamis, exploration for oil and gas projects, building offshore wind turbines, fishing resources, and for laying cables and pipelines.This data becomes highly valuable during disaster situations. For this, the project aims to rope in governments, private companies, and international organisations to acquire data.
* The moderation of comments is automated and not cleared manually by Copyright © 2020 The Indian Express [P] Ltd. All Rights Reserved Explained: Why scientists want to map the entire ocean floor Tharp continued working with Heezen to bring the ocean floor to life. Most tsunamis start with earthquakes under or near the ocean floor. Their collaboration included an Indian Ocean map, published by National Geographic in 1967, and a 1977 World Ocean Floor map that is now held at the Library of Congress. It could also aid deep sea miners looking for profit The Nippon Foundation-GEBCO Seabed 2030 Project has mapped one-fifth of the world’s ocean floor. To provide groundtruth values for remotely sensed/satellite data, helping refine new techniques for environmental assessment and prediction. As per its website, GEBCO is the only intergovernmental organisation with a mandate to map the entire ocean floor, and traces its origins to the GEBCO chart series initiated in 1903 by Prince Albert I of Monaco.The Project was launched at the United Nations Ocean Conference in 2017, and coordinates and oversees the sourcing and compilation of bathymetric data from different parts of the world’s ocean through its five centres into the freely-available GEBCO Grid.In the past, satellites and planes carrying altimeter instruments have been able to provide large swathes of data about the ocean floor. The Seabed 2030 Project, however, aims to obtain higher quality information that has a minimum resolution of 100 m at all spots, using equipment such as deepwater hull-mounted sonar systems, and more advanced options such as Underwater Vehicles (AUVs). (Source: seabed2030.gebco.net) Announcing a new milestone in the history of marine exploration, an international collaboration of researchers said on June 21 that it had finished mapping nearly one-fifth of the world’s ocean floor. Why was the mapping of the ocean floor such an important step in the development of plate tectonic theory? The seafloor provides habitat for fish, corals and complex communities of microbes, crustaceans and other organisms. According to an expert who spoke to Science Magazine, thanks to the previously mapped seafloor, scientists in Japan were able to reconstruct the forces behind the destructive 2011 Tohoku earthquake.As per a Seabed 2030 document, “The need for a bathymetric base map of the southeastern Indian Ocean also became particularly evident in the search for the Malaysia Airlines flight MH370, which disappeared 8 March 2014.”Importantly, the maps would also ensure a better understanding of climate change, since floor features including canyons and underwater volcanoes influence phenomena such as the vertical mixing of ocean water, and ocean currents — which act as conveyor belts of warm and cold water, thus influencing the weather and climate. To determine sites for seabed communications cables, drilling platforms, and other structures. a. The biggest difference in the new theory was that EarthOur content on-the-go. That’s because detailed maps of ocean floors would also be an aid for mining industries that might plunder the depths of the seas for profit, potentially endangering our already fragile marine habitats, according to the BBC. It is also important to map changes in the composition of the sea floor. Helping students understand the connections between plate tectonics, ocean floor bathymetry, diversity of life, and adaptations to the environment can help increase their understanding of the interconnectedness of Earth systems. Sign up for The Conversation’s science newsletter.] Download our new app for iPad and iPhone today!We are supported by The National Science Foundation and the U.S. Department of Education. Whereas depth can be measured using the timing of the signals going to and from the sea floor, a precise measurement of the “strength” of the sonar return is required to discern texture.
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