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The OCEAN ICE mooring compilation: a standardised, pan-Antarctic database of ocean hydrography and current time series

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Title
The OCEAN ICE mooring compilation: a standardised, pan-Antarctic database of ocean hydrography and current time series
Other Titles
OCEAN ICE 계류 관측 종합: 남극 전역을 아우르는 표준화된 해양 수온·염분 구조 및 해류 시계열 데이터베이스
Authors
Shenjie Zhou
Pierre Dutrieux
Claudia F. Giulivi
Adrian Jenkins
Alessandro Silvano
Christopher Auckland
E. Povl Abrahamsen
Michael Meredith
Irena Va?kova
Keith Nicholls
Peter E. D. Davis
Svein Østerhus
Arnold L. Gordon
Christopher J. Zappa
Tiago S. Dotto
Ted Scambos
Kathryn L. Gunn
Stephen R. Rintoul
Shigeru Aoki
Craig Stevens
Chengyan Liu
Yun, Sukyoung
Kim, Tae-Wan
Lee, Won Sang
Markus Janout
Tore Hattermann
Julius Lauber
Elin Darelius
Anna Wahlin
Leo Middleton
Pasquale Castagno
Giorgio Budillon
Karen J. Heywood
Jennifer Graham
Stephen Dye
Daisuke Hirano
Una Kim Miller
Keywords
Ocean Mooringocean hydrographypan-Antarctic database
Issue Date
2025-10
Citation
Shenjie Zhou, et al. 2025. "The OCEAN ICE mooring compilation: a standardised, pan-Antarctic database of ocean hydrography and current time series". Earth System Science Data, 17(10): 5693-5706.
Abstract
Continuous moored time series of temperature, salinity, pressure and current speed and direction are of great importance for understanding the continental shelf and under-ice-shelf dynamics and thermodynamics that govern water mass transformations and ice melting in and around Antarctic marginal seas. In these regions, icebergs and sea ice make ship-based mooring deployment and recovery challenging. Nevertheless, over decades, expeditions around the fringe of Antarctica sporadically deployed and recovered hundreds of moored instruments, including those facilitated through ice shelves boreholes. These datasets tend to be archived in a wide range of data centres, with, to our knowledge, no clear format standardisation. As a result, systematic analysis of historical mooring time series in the marginal seas is often challenging. Here we present the first version of a standardised pan-Antarctic moored hydrography and current time series compilation, with broad international contributions from data centres, research institutes and individual data owners. The mooring records in this compilation span over five decades, from the 1970s to the 2020s, providing an opportunity for a systematic study of the pan-Antarctic water mass transport and shelf connectivity. As a demonstration of the utility of this compilation, we present spectral analysis of the compiled current velocity time series, which unsurprisingly shows the dominating presence of tidal variability within most records. This component of the variability is fitted using multi-linear regression to tidal frequencies, and the tidal fit is removed from the original time series to leave de-tided variability. Given the limited record durations to months to years, de-tided variability is dominated by synoptic (3?10?d period), intraseasonal (10?80?d) and seasonal (∼6 months?1 year) signals. The spatial distribution of the kinetic energy integrated within frequency bands is presented and discussed within respective regional contexts, and future avenues of research are proposed. This data compilation is assembled under the endorsement of Ocean-Cryosphere Exchanges in ANtarctica: Impacts on Climate and the Earth System (OCEAN ICE) project (https://ocean-ice.eu/, last access: 23 October 2025) funded by the European Commission and UK Research and Innovation. It is available and regularly updated in NetCDF format with the SEANOE database at https://doi.org/10.17882/99922 (Zhou et al., 2024a).
URI
https://repository.kopri.re.kr/handle/201206/16587
DOI
https://doi.org/10.5194/essd-17-5693-2025
Type
Article
Station
Araon
Indexed
SCIE
Appears in Collections  
2025-2025, 서남극해 온난화에 따른 탄소흡수력 변동 및 생태계 반응 연구 (25-25) / 박지수 (PE25110)
2025-2025, 급격한 남극 빙상 용융에 따른 근미래 전지구 해수면 상승 예측기술 개발 (25-25) / 이원상 (PM25020)
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