Jakobsson Martin, Mohammad Rezwan, Karlsson Marcus, Salas-Romero Silvia, Vacek Florian, Heinze Florian, Bringensparr Caroline, Castro Carlos F, Johnson Paul, Kinney Juliet, Cardigos Sara, Bogonko Michael, Accettella Daniela, Amblas David, An Lu, Bohan Aileen, Brandt Angelika, Bünz Stefan, Canals Miquel, Casamor José Luis, Coakley Bernard, Cornish Natalie, Danielson Seth, Demarte Maurizio, Di Franco Davide, Dickson Mary-Lynn, Dorschel Boris, Dowdeswell Julian A, Dreutter Simon, Fremand Alice C, Hall John K, Hally Bryan, Holland David, Hong Jon Kuk, Ivaldi Roberta, Knutz Paul C, Krawczyk Diana W, Kristofferson Yngve, Lastras Galderic, Leck Caroline, Lucchi Renata G, Masetti Giuseppe, Morlighem Mathieu, Muchowski Julia, Nielsen Tove, Noormets Riko, Plaza-Faverola Andreia, Prescott Megan M, Purser Autun, Rasmussen Tine L, Rebesco Michele, Rignot Eric, Rysgaard Søren, Silyakova Anna, Snoeijs-Leijonmalm Pauline, Sørensen Aqqaluk, Straneo Fiammetta, Sutherland David A, Tate Alex J, Travaglini Paola, Trenholm Nicole, van Wijk Esmee, Wallace Luke, Willis Josh K, Wood Michael, Zimmermann Mark, Zinglersen Karl B, Mayer Larry
Department of Geological Sciences, Stockholm University, Stockholm, Sweden.
Utrecht University, Utrecht, Netherlands.
Sci Data. 2024 Dec 21;11(1):1420. doi: 10.1038/s41597-024-04278-w.
Knowledge about seafloor depth, or bathymetry, is crucial for various marine activities, including scientific research, offshore industry, safety of navigation, and ocean exploration. Mapping the central Arctic Ocean is challenging due to the presence of perennial sea ice, which limits data collection to icebreakers, submarines, and drifting ice stations. The International Bathymetric Chart of the Arctic Ocean (IBCAO) was initiated in 1997 with the goal of updating the Arctic Ocean bathymetric portrayal. The project team has since released four versions, each improving resolution and accuracy. Here, we present IBCAO Version 5.0, which offers a resolution four times as high as Version 4.0, with 100 × 100 m grid cells compared to 200 × 200 m. Over 25% of the Arctic Ocean is now mapped with individual depth soundings, based on a criterion that considers water depth. Version 5.0 also represents significant advancements in data compilation and computing techniques. Despite these improvements, challenges such as sea-ice cover and political dynamics still hinder comprehensive mapping.
关于海底深度或测深法的知识对于包括科学研究、近海产业、航行安全和海洋探索在内的各种海洋活动至关重要。由于常年海冰的存在，绘制北冰洋中部海域具有挑战性，这将数据收集限制在破冰船、潜艇和漂流冰站。北冰洋国际测深图（IBCAO）项目始于1997年，目标是更新北冰洋测深图。此后，项目团队已发布了四个版本，每个版本都提高了分辨率和精度。在此，我们展示IBCAO第5.0版，其分辨率比第4.0版高四倍，网格单元为100×100米，而第4.0版为200×200米。根据考虑水深的标准，现在超过25%的北冰洋区域是通过单独的深度测量绘制的。第5.0版在数据汇编和计算技术方面也取得了重大进展。尽管有这些改进，但海冰覆盖和政治动态等挑战仍然阻碍着全面测绘。
