International Bathymetric Chart of the Arctic Ocean (IBCAO)

The International Bathymetric Chart of the Arctic Ocean (IBCAO) is a bathymetry map detailing the seafloor depth in the Arctic ocean at a resolution of 100 × 100 metres.

Bathymetry is significant for a multitude of marine scientific studies. Since 1997, the International Bathymetric Chart of the Arctic Ocean (IBCAO) has been the authoritative source of bathymetry for the Arctic Ocean.

The bathymetry map covers the Arctic Ocean. The source data used to compile the map is collected over many decades, spanning from at least the 1950s to the 2020s and is acquired using several measuring methods, e.g. multi- and single-beam echo sounders. The direct measurements are sparse, hence also indirect measurements have been used such as contours and soundings digitised from depth charts.

国际北极洋海底地形图（IBCAO）是一幅详细描绘北极洋海底深度的地形图，其分辨率为100×100米。海底地形学对于众多海洋科学研究具有重要意义。自1997年以来，国际北极洋海底地形图（IBCAO）一直作为北极洋海底地形学的权威资料来源。该地形图涵盖了整个北极洋。编制地图所使用的源数据收集跨越数十年，至少从20世纪50年代至21世纪20年代，并采用多种测量方法获取，例如多波束和单波束回声测深仪。直接的测量数据稀疏，因此也使用了间接测量数据，如从深度图数字化得到的等深线和测深数据。