British media: Global Underwater Top Slaster Drawing Complete Nearly 1/4

[Global Times Comprehensive Report] According to a report by Broadcasting Corporation on June 29, information released by the 2nd UN Oceanic Conference held in the Portuguese Capital Lisbon this week shows that the completion rate of the global underwater terrain map has reached 23.4%, only new last year, new only last year. The area of ​​the topographic data at the bottom of the sea has reached 10 million square kilometers, which is basically equivalent to European land area. Some experts pointed out that the main sources of these new data are not new underwater detection work, but the governments of various countries have gradually disclosed their collected data for some time. It is reported that 10%-15%of the data has not been made public, and some owners are worried that this may leak business or defense secrets. At present, about 3/4 of the global sea floor can only obtain a general topographic map with a very low sharpness through satellite remote sensing. The test and drawing of the high -definition underwater topography is a difficult and huge project. The "Sea Bible 2030" program sponsored by the Japanese side encourages individual enthusiasts to actively participate in the drawing high -definition sea map. A US financialist conducts submarine surveying and mapping by itself, contributed more than 3 million square kilometers of submarine maps.

However, the global ocean area is extremely broad, and some sea areas are inaccessible. A underwater robot company called "Endless" is building a number of 78 meters of underwater surveying ships in Vietnam. In the future During surveying work. (Wang Pinzhi)

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