A precise model of Earth's geoidis crucial for deriving accurate measurements of ocean circulation, sea-level change and terrestrial ice dynamics.
图上精确的地球大地水准面是根据洋流、海平面的变化和地球冰川等元素的精确数据测量而成。
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As a base to analyze the terrestrial carbon cycle and dynamic, forest biomass estimation has been one of important contents of ecology and global change study.