1993-2018 년 한반도 연안 상대해수면 수지 분석. (Kanuri)
In: Ocean & Polar Research, Jg. 46 (2024-03-01), Heft 1, S. 31-42
academicJournal
Zugriff:
Due to physical processes varying in space and time, regional sea-level rise (SLR) significantly deviates from the global mean. Thus, understanding and quantifying the contribution of each process to regional sea-level change is crucial to prevent low-lying inundation in preparation for future ocean conditions. In this study, we assessed to what degree sterodynamic (SD) effects (i.e., density-driven steric expansion and mass redistribution due to ocean circulation), contemporary mass redistribution (CMR), and glacial isostatic adjustment (GIA) contribute relative sea-level rise around the Korean coast from 1993 to 2018, with independent observations and reanalysis datasets. The assessment showed that the tide gauge-observed SLR trend can be explained by the sum of each component at 16 of 19 locations. The major contributors to relative SLR are SD effects of 2.03±0.27 mm/yr and CMR components of 1.31±0.05 mm/yr, while GIA drives sea-level decreasing of -0.27±0.15 mm/yr on the Korean coast. It was also found that the spatial deviations of SLR are primarily caused by the SD effects. In addition, the evaluation of vertical land motion (VLM) based on altimetry and tide gauge indicates that most tide gauge locations have experienced uplift during at least altimetry period, whereas Wido station has experienced particularly high rate of subsidence that contributed to the SLR acceleration. Further examination of the impact of earth deformation due to CMR, GIA, and local process on the VLM trends demonstrated that the GIA and CMR contribute to land uplift with the average of 0.35±0.15 mm/yr and 0.17±0.05 mm/yr, respectively. On the other hand, the local processes like groundwater depletion and sediment compaction showed a wide range of variability, from -1.61 to 0.58 mm/yr, indicating a significant contribution to regional differences in vertical land motion. [ABSTRACT FROM AUTHOR]
Copyright of Ocean & Polar Research is the property of Korea Ocean Research & Development Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Titel: |
1993-2018 년 한반도 연안 상대해수면 수지 분석. (Kanuri)
|
---|---|
Autor/in / Beteiligte Person: | 차현수 ; 조성배 ; 문재홍 |
Zeitschrift: | Ocean & Polar Research, Jg. 46 (2024-03-01), Heft 1, S. 31-42 |
Veröffentlichung: | 2024 |
Medientyp: | academicJournal |
ISSN: | 1598-141X (print) |
DOI: | 10.4217/OPR.2024007 |
Schlagwort: |
|
Sonstiges: |
|