What question did this study set out to answer?

To document hydrographic data collected during the 63rd, 64th, and 65th Japanese Antarctic Research Expedition.

April 29, 2026Open Access

Hydrographic Data of the 63rd, 64th and 65th Japanese Antarctic Research Expedition

Key Points

To document hydrographic data collected during the 63rd, 64th, and 65th Japanese Antarctic Research Expedition.
Conducted bathymetric surveys and tidal observations around Syowa Station in Antarctica.
Performed observations in January 2022, January and February 2023, and February 2024.
Gathered tidal data from January 2021 to December 2023.
Collected bathymetric data around Lützow-Holmbukta during multiple expeditions.
Observed tidal patterns at Syowa Station over a three-year period for nautical chart purposes.

Abstract

The Japan Coast Guard (JCG) continues to conduct bathymetric surveys and tidal observations for producing nautical charts around Syowa Station in Antarctica. The authors conducted these observations as a member of the 63rd, 64th and 65th Japanese Antarctic Research Expedition (JARE). This paper describes the results of the bathymetric survey around Lützow-Holmbukta in January 2022, January and February 2023 and February 2024. This paper also describes the tidal observation at Syowa Station, Antarctica, from January 2021 to December 2023.

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