Impacts of atmospheric pressure on the annual maximum of monthly sea-levels in the Northeast Asian Marginal seas
SCIE
SCOPUS
Cited 5 time in
WEB OF SCIENCE
Cited 4 time in
Scopus
-
Title
- Impacts of atmospheric pressure on the annual maximum of monthly sea-levels in the Northeast Asian Marginal seas
-
Author(s)
- Han, Myeong-Hee; Cho, Yang-Ki; Kang, Hyoun-Woo; Nam, Sung-Hyun; Byun, Do-Seong; Jeong, Kwang-Young; Lee, Eunil
- KIOST Author(s)
- Kang, Hyoun Woo(강현우)
-
Alternative Author(s)
- 강현우
-
Publication Year
- 2020-06
-
Abstract
- Monthly mean sea-levels have annual maxima in August in the northeast Asian marginal seas (NEAMS). Based on satellite altimetry data, the rising rate of the August NEAMS sea-level (ANS, 4.2 mm•yr-1) is greater than those of the NEAMS (3.6 mm•yr-1) and global (3.4 mm•yr-1) annual mean sea-levels. Thus, the interannual variations of ANS are classified as relatively high (period H) and low (period L) years and have been analysed because of the high risk of sea-level fluctuation to the coastal regions in August. In period H, there are large atmospheric pressure gradients between the high pressure zone in the Kuroshio Extension (KE) and the low pressure zone in the west of Taiwan (WT). In period L, the atmospheric pressure gradients are small between the above-mentioned zones. Large atmospheric pressure gradients induce strong west-northwestward wind stresses and more Ekman transport from the northwest Pacific Ocean into the NEAMS. The correlation coefficient between August NEAMS sea-level index (ANSI), which is the difference of atmospheric pressure anomalies between the KE and the WT, and the August NEAMS sea-level anomaly (ANSA) is 0.73. Although there is a significant correlation (coefficient: 0.64) between ANSA and the East Asian summer monsoon index (EASMI), ANSI might be more useful in estimating the variability of ANSA. © 2020 by the authors.
-
ISSN
- 2077-1312
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/38618
-
DOI
- 10.3390/JMSE8060425
-
Bibliographic Citation
- Journal of Marine Science and Engineering, v.8, no.6, 2020
-
Publisher
- MDPI AG
-
Keywords
- Atmospheric pressure; August NEAMS sea-level index; Ekman transport; Interannual variation; Satellite altimetry; Sea-level; Wind stress
-
Type
- Article
-
Language
- English
-
Document Type
- Article
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.