인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Abstract Internal tides are crucial in ocean dynamics and are a source of error in marine acoustic measurements. In Global Navigation Satellite System-Acoustic combination technique (GNSS-A) seafloor crustal deformation observations, which contribute to earthquake and plate subduction sciences, the effect of internal tides has never been estimated, even though it has been predicted. In this study, we quantitatively evaluated the impact of internal tides on GNSS-A observations by numerical reproduction and used data from the GNSS-A observation network around Japan to quantitatively identify the effect of internal tides on GNSS-A observations for the first time. As a result, we clarified the mechanism of internal tidal effects for GNSS-A. Long-term sound speed disturbances during GNSS-A observations were generally explained by a semidiurnal internal tide in modes 1 to 3. GNSS-A is affected by the horizontal wavelength, mode, and direction of the internal tides and can be used to grasp those features. In future, these results are expected to contribute to progress in multidisciplinary research, such as the construction of advanced physical models and analytical methods.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.