According to NASA’s Near Earth Object (NEO), the size of the space rock is estimated to be about 1,150 to 2,560 feet (350 to 780 meters) in diameter. It is currently traveling through space at a speed of about 23,300 miles per hour. Photo: ( Zee News Network )
JAKARTA, kilat.com- For scientist has created a bathymetric chart that maps the seafloor of the southern ocean surrounding Antarctica covering an area of 48 million sq km.
Knowing the depth and shape of the ocean floor is essential for understanding ocean circulation, tides, tsunami forecasting, fisheries resources, sediment transport, environmental change, underwater geographic hazards, infrastructure construction and maintenance, cable and pipe routing, and much more.
Samudra The South that surrounds Antarctica is a region that is key to a variety of climatic and oceanographic processes with worldwide effects and is characterized by high biological productivity and biodiversity. Since 2013, the Southern Ocean International Bathymetry Chart (IBCSO) has represented the most comprehensive compilation of bathymetry for the Southern Ocean south of 60°S.
More recently, the IBCSO Project has combined its efforts with the Nippon Foundation GEBCO Seabed 2030 Project which supports the goal of mapping the world’s oceans by 2030.
Seabed 2030 is a collaborative project between the Nippon Foundation, a Japanese non-profit philanthropic organization and the General Bathymetric Chart of the Oceans (GEBCO), an international group of mapping experts. It aims to bring together all available bathymetric data to produce a definitive map of the world’s ocean floor by 2030 and make it available to all.
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The project was launched at the United Nations (UN) Oceans Conference in June 2017 and is aligned with UN Sustainable Development Goal 14 to conserve and use ocean, marine and marine resources in a sustainable manner.
Despite years of effort, less than 20 percent of the world’s ocean floor has been mapped. Coordinated international efforts are needed to bring together all existing data sets and to identify areas for future surveys to help ‘map gaps’.
The Southern Ocean is a major component of the combined atmosphere-ocean climate system and includes the largest ocean current on earth, the Antarctic Circumpolar Current (ACC). Furthermore, it is the most important ocean area for the absorption of anthropogenic carbon dioxide and heat from the atmosphere and cold, dense bottom water forms on the shelves surrounding Antarctica.
Southern Ocean interaction with glaciers Antarctica and the ice sheet is a key driver of the current, past and future mass balance of the Antarctic ice sheet and thus global sea level change.
Biologically, the Southern Ocean is an area of high productivity with high biodiversity. The Southern Ocean is also one of the most remote and harshest regions in the world with extensive sea ice sheets and severe weather conditions throughout the year.
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Despite its isolation and hostility, human activities are expanding into distant parts of the world, for example including research, fisheries, and tourism.
Appropriate bathymetric information such as for example provided by the International Bathymetric Chart of the Southern Ocean (IBCSO) and the Digital Bathymetric Model of the Drake Passage (DBM-BATDRAKE) is essential for better understanding the Southern Ocean and its processes as well as for human activities and conservation and management actions. IBCSO aims to provide the most comprehensive compilation of bathymetric data for the region. (nda)
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