Contribution of low-salinity water to sea surface warming of the East China Sea in the summer of 2016 SCIE SCOPUS

Cited 7 time in WEB OF SCIENCE Cited 8 time in Scopus
Title
Contribution of low-salinity water to sea surface warming of the East China Sea in the summer of 2016
Author(s)
Moon, Jae-Hong; Kim, Taekyun; Son, Young Baek; Hong, Ji-Seok; Lee, Joon-Ho; Chang, Pil-Hun; Kim, Soo-Kang
KIOST Author(s)
Son, Young Baek(손영백)
Publication Year
2019-07
Abstract
Substantial low-salinity water (< 26 psu) was observed in the northern East China Sea (ECS) in the summer of 2016, resulting in significant warming (similar to 2 degrees C) of sea surface temperature (SST) over the freshening area compared to normal year. By analyzing the ship-based hydrographic datasets, horizontal temperature and salinity distributions tracked by a wave glider, and results from a regional ocean model, this study examined the spatiotemporal behavior of low-salinity water over the northern ECS and its contribution to SST warming during summer. The observations revealed that a large amount of the freshwater originating from the Changjiang significantly stratified the surface layer above the top of the thermocline, resulting in a shallow mixed layer (ML) in which significant warming was found. The shallow ML led to a barrier layer formation between the ML and the layer below the ML that can enhance SST warming by restricting heat exchanges between the surface and the thermocline. Our model successfully captured the strong surface warming over the northern ECS observed during the summer of 2016, which corresponded to significant areas of surface freshening. The model-data comparisons demonstrate that the salinity-stratified ML had a significant impact on the enhancement of barrier layer formation, leading to increased SST warming over the areas wherein surface freshening was robust.
ISSN
0079-6611
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/582
DOI
10.1016/j.pocean.2019.03.012
Bibliographic Citation
PROGRESS IN OCEANOGRAPHY, v.175, pp.68 - 80, 2019
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
CHANGJIANG DILUTED WATER; MIXED-LAYER; YELLOW SEA; RIVER; TEMPERATURE; CIRCULATION
Keywords
Low-salinity water; Sea surface temperature; Mixed layer; Barrier layer; Changjiang; Ocean model
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Ocean Color Remote Sensing,Climate Change,UAV,해양원격탐사,기후변화,무인체계

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