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早在1998年初,美国前副总统戈尔在加利福尼亚科学中心演讲时首次提出“数字地球”概念。从此,科学家们尝试通过各种途径来获得地球表面的三维信息,干涉合成孔径雷达
As early as the beginning of 1998, former U.S. Vice President Al Gore first proposed the concept of “digital earth” in his speech at the California Science Center. Since then, scientists have tried to obtain three-dimensional information on the surface of the Earth through various means to interfere with synthetic aperture radar