scholarly journals Numerical Modeling of Meteotsunami–Tide Interaction in the Eastern Yellow Sea

Atmosphere ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 369 ◽  
Author(s):  
Ki-Young Heo ◽  
Jae-Seon Yoon ◽  
Jae-Seok Bae ◽  
Taemin Ha
Keyword(s):  
High Resolution ◽  
Yellow Sea ◽  
Atmospheric Pressure ◽  
High Tide ◽  
Atmospheric Modeling ◽  
Tidal Currents ◽  
Coastal Communities ◽  
The Yellow Sea ◽  
Small Scale ◽  
Western Coast

Meteotsunamis originating from atmospheric pressure disturbances have frequently occurred in oceans worldwide and their destructive long waves have recently threatened local coastal communities. In particular, meteotsunamis occurring in the Yellow Sea caused unexpected casualties and property damage to local communities on the western coast of the Korean Peninsula in 2007 and 2008. These events attracted the attention of many engineers and scientists because abrupt extreme waves have struck several coasts and ports even under fine weather conditions. Furthermore, the Yellow Sea has the highest tide and most powerful tidal currents in the world, and consequently, meteotsunami events there could be more destructive and harmful to local coastal communities when such events occur during high tide or a critical phase with strong tidal currents. In this study, numerical experiments were conducted to identify the qualitative effect of the interaction between a meteotsunami and the tide on the generation and amplification mechanisms of meteotsunamis occurring in the Yellow Sea. In general, small-scale meteotsunamis, such as those that occur in the Yellow Sea, should be analyzed using a high-resolution modeling system because water motions can be affected by local terrain. To achieve this objective, high-resolution atmospheric modeling was conducted to reproduce the atmospheric pressure disturbances observed in the Yellow Sea; then, the generation and propagation of the meteotsunami over real topographies was simulated using a phase-resolving wave model. Both an atmospheric model (Weather Research and Forecasting Model (WRF)) and a shallow water equation model (COrnell Multigrid COupled Tsunami Model (COMCOT)) were employed to simulate the generation and transformation of the meteotsunami.

scholarly journals Improved Detection of Tiny Macroalgae Patches in Korea Bay and Gyeonggi Bay by Modification of Floating Algae Index

2018 ◽  
Vol 10 (9) ◽  
pp. 1478
Author(s):  
Ahmed Harun-Al-Rashid ◽  
Chan-Su Yang
Keyword(s):  
High Resolution ◽  
Yellow Sea ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Ocean Color ◽  
The Yellow Sea ◽  
Small Scale ◽  
Landsat 8 ◽  
Modified Method ◽  
Macroalgal Bloom

This work focuses on the detection of tiny macroalgae patches in the eastern parts of the Yellow Sea (YS) using high-resolution Landsat-8 images from 2014 to 2017. In the comparison between floating algae index (FAI) and normalized difference vegetation index (NDVI) better detection by FAI was observed, but many tiny patches still remained undetected. By applying a modification on the FAI around 12% to 27% increased and correct detection of macroalgae is achieved from 35 images compared to the original. Through this method many scattered tiny patches were detected in June or July in Korea Bay and Gyeonggi Bay. Though it was a small-scale phenomenon they occurred in the similar period of macroalgal bloom occurrence in the YS. Thus, by using this modified method we could detect macroalgae in the study areas around one month earlier than the previously used Geostationary Ocean Color Imager NDVI-based detection. Later, more macroalgae patches including smaller ones occupying increased areas were detected. Thus, it seems that those macroalgae started growing locally from tiny patches rather than being transported from the western parts of the YS. Therefore, this modified FAI could be used for the precise detection of macroalgae.

scholarly journals Influence of stratification on residual tidal currents in the Yellow Sea

1999 ◽  
Vol 104 (C7) ◽  
pp. 15679-15701 ◽  
Author(s):  
Sang-Ho Lee ◽  
Robert C. Beardsley
Keyword(s):  
Yellow Sea ◽  
Tidal Currents ◽  
The Yellow Sea

Extreme precipitation event over the Yellow Sea western coast: Is there a trend?

2017 ◽  
Vol 441 ◽  
pp. 1-17 ◽  
Author(s):  
Huailiang Wang ◽  
Zhuhai Shao ◽  
Tao Gao ◽  
Tao Zou ◽  
Jie Liu ◽  
...  
Keyword(s):  
Yellow Sea ◽  
Extreme Precipitation ◽  
Extreme Precipitation Event ◽  
The Yellow Sea ◽  
Precipitation Event ◽  
Western Coast

scholarly journals Conserving unprotected important coastal habitats in the Yellow Sea: shorebird occurrence, distribution and food resources at Lianyungang

2019 ◽  
Author(s):  
Ying-Chi Chan ◽  
He-Bo Peng ◽  
Yong-Xiang Han ◽  
Sheena Suet-Wah Chung ◽  
Jing Li ◽  
...  
Keyword(s):  
East Asia ◽  
Yellow Sea ◽  
Coastal Wetlands ◽  
High Tide ◽  
Developed Countries ◽  
Food Resources ◽  
The Yellow Sea ◽  
Ecological Knowledge ◽  
Ecological Data ◽  
Intertidal Flats

AbstractCoastal wetlands around the world are being destroyed and degraded rapidly. In most developing and recently developed countries, the ecological data required for wetland conservation are scarce, and expertise to collect them are less-established. One of the most rapidly deteriorating coastal regions is the Yellow Sea in East Asia, an important staging area for migratory shorebirds. Conserving the declining shorebird populations that rely on the Yellow Sea requires habitat protection and management based on sound ecological knowledge, especially on the seasonal occurrence of shorebirds, their daily movements and their food resources. Here we gather and assimilate such information for the coastal wetlands at Lianyungang on the Chinese Yellow Sea coast, an understudied and unprotected area where we found 27% of intertidal soft sediment habitats have been destroyed in 2003-2018. In 2008-2018, 43 shorebird species were recorded along this coastline, including 11 globally threatened or ‘Near Threatened’ species. We recorded 18 shorebird species of numbers exceeded 1% of the Flyway populations, which is the second-highest among the >300 shorebird sites in East Asia. Shorebirds stopping there during migration are probably attracted by the highly-abundant small soft-shelled bivalve species (including 9399 individuals/m2 of Potamocorbula laevis) that dominate the benthic mollusc community of the intertidal flats. Satellite tracked bar-tailed godwits (Limosa lapponica) and great knots (Calidris tenuirostris) stopped at Lianyungang for 5-28 days during northward and southward migration. The tidal movements of satellite-tagged birds indicated high tide roosts which are inaccessible on-ground. These movements can also be used to evaluate whether high-tide roosts and low-tide foraging areas are close enough to each other, and direct where to create new roost sites. Potential measures to increase the capacity of Lianyungang to support shorebirds include reducing human disturbances, creating roosts at undeveloped parts of the reclaimed land, and the removal of recently-built sea dikes to restore intertidal flats.

scholarly journals High-Resolution Satellite Observations of a New Hazard of Golden Tides Caused by Floating Sargassum in Winter in the Yellow Sea

2017 ◽  
Vol 14 (10) ◽  
pp. 1815-1819 ◽  
Author(s):  
Qianguo Xing ◽  
Ruihong Guo ◽  
Lingling Wu ◽  
Deyu An ◽  
Ming Cong ◽  
...  
Keyword(s):  
High Resolution ◽  
Yellow Sea ◽  
Satellite Observations ◽  
The Yellow Sea

Analysis and high-resolution modeling of a dense sea fog event over the Yellow Sea

2006 ◽  
Vol 81 (4) ◽  
pp. 293-303 ◽  
Author(s):  
Gang Fu ◽  
Jingtian Guo ◽  
Shang-Ping Xie ◽  
Yihong Duan ◽  
Meigen Zhang
Keyword(s):  
High Resolution ◽  
Yellow Sea ◽  
The Yellow Sea ◽  
Sea Fog
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