NEMO-Bohai 1.0: a high-resolution ocean and sea ice modelling system for the Bohai Sea, China

Abstract. Severe ice condition in the Bohai Sea could cause serious harm to maritime traffic, offshore oil exploitation, aquaculture, and other economic activities in the surrounding regions. In addition to providing sea ice forecasts for disaster prevention and risk mitigation, sea ice numerical models could help explain the sea ice variability within the context of climate change in marine ecosystems, such as that of spotted seals, which are the only ice-dependent sea animal that breeds in Chinese waters. Here, we developed NEMO-Bohai, an ocean-ice coupled model based on the Nucleus for European Modelling of the Ocean (NEMO) model version 4.0 and Sea Ice modelling Integrated Initiative (SI3) (NEMO4.0-SI3) for the Bohai Sea. This study will present the scientific design and technical choices of the parameterizations for the NEMO-Bohai model. The model was calibrated and evaluated with in situ and satellite observations of ocean and sea ice. The model simulations agree with the observations with respect to sea surface height (SSH), temperature (SST), and salinity (SSS). The seasonal variation of the sea ice area is well simulated by the model compared to the satellite remote sensing data for the period of 1996–2017, and there are similar overall statistics in the occurrence dates of annual maximum sea ice area. The simulated sea ice thickness and volume are in general agreement with the observations with slight over-estimations. NEMO-Bohai is able to simulate seasonal sea ice evolution and long-term interannual variations. Hence, Nemo-Bohai is intended to be a useful tool for long-term ocean and ice simulations as well as the ocean and climate change studies.

Download Full-text

Notice of Retraction: Study on the Sea-ice development monitoring based on HJ satellite remote sensing data—A case study of the Bohai sea

The 2nd International Conference on Information Science and Engineering ◽

10.1109/icise.2010.5690683 ◽

2010 ◽

Author(s):

Zhong Deng ◽

Chi Tian-He ◽

Zhang Xin ◽

Peng Lin ◽

Wang Chun-Hong

Keyword(s):

Remote Sensing ◽

Sea Ice ◽

Satellite Remote Sensing ◽

Bohai Sea ◽

Remote Sensing Data ◽

Sensing Data ◽

The Bohai Sea

Download Full-text

Vulnerability of the North Water ecosystem to climate change

Nature Communications ◽

10.1038/s41467-021-24742-0 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Sofia Ribeiro ◽

Audrey Limoges ◽

Guillaume Massé ◽

Kasper L. Johansen ◽

William Colgan ◽

...

Keyword(s):

Climate Change ◽

Sea Ice ◽

Late Holocene ◽

Sediment Cores ◽

Arctic Ecosystems ◽

Little Auk ◽

The North ◽

Water Ecosystem ◽

North Water

AbstractHigh Arctic ecosystems and Indigenous livelihoods are tightly linked and exposed to climate change, yet assessing their sensitivity requires a long-term perspective. Here, we assess the vulnerability of the North Water polynya, a unique seaice ecosystem that sustains the world’s northernmost Inuit communities and several keystone Arctic species. We reconstruct mid-to-late Holocene changes in sea ice, marine primary production, and little auk colony dynamics through multi-proxy analysis of marine and lake sediment cores. Our results suggest a productive ecosystem by 4400–4200 cal yrs b2k coincident with the arrival of the first humans in Greenland. Climate forcing during the late Holocene, leading to periods of polynya instability and marine productivity decline, is strikingly coeval with the human abandonment of Greenland from c. 2200–1200 cal yrs b2k. Our long-term perspective highlights the future decline of the North Water ecosystem, due to climate warming and changing sea-ice conditions, as an important climate change risk.

Download Full-text

Observation of Sea Ice Drift Characteristics with Marine Radar Images on an Offshore Platform in the Bohai Sea

Journal of Waterway Port Coastal and Ocean Engineering ◽

10.1061/(asce)ww.1943-5460.0000646 ◽

2021 ◽

Vol 147 (4) ◽

Author(s):

Xue Long ◽

Xiaodong Chen ◽

Anliang Wang ◽

Yu Liu ◽

Shunying Ji

Keyword(s):

Sea Ice ◽

Bohai Sea ◽

Offshore Platform ◽

The Bohai Sea ◽

Radar Images ◽

Ice Drift ◽

Sea Ice Drift ◽

Marine Radar

Download Full-text

Long‐Term Nutrient Variations in the Bohai Sea Over the Past 40 Years

Journal of Geophysical Research Oceans ◽

10.1029/2018jc014765 ◽

2019 ◽

Vol 124 (1) ◽

pp. 703-722 ◽

Cited By ~ 17

Author(s):

Junjie Wang ◽

Zhigang Yu ◽

Qinsheng Wei ◽

Qingzhen Yao

Keyword(s):

Bohai Sea ◽

The Bohai Sea ◽

The Past

Download Full-text

Spatio-temporal characteristics of the sea-ice volume of the Bohai Sea, China, in winter 2009/10

Annals of Glaciology ◽

10.3189/2013aog62a305 ◽

2013 ◽

Vol 54 (62) ◽

pp. 97-104 ◽

Cited By ~ 9

Author(s):

Chengyu Liu ◽

Wei Gu ◽

Jinlong Chao ◽

Lantao Li ◽

Shuai Yuan ◽

...

Keyword(s):

Sea Ice ◽

Bohai Sea ◽

Shortwave Radiation ◽

Laizhou Bay ◽

Bohai Bay ◽

Temporal Characteristics ◽

The Bohai Sea ◽

Ice Volume ◽

Radiation Theory ◽

Spatio Temporal

AbstractTo investigate the spatio-temporal characteristics of sea-ice resource, we used sea-ice volume to measure the amount of sea-ice resource in the Bohai Sea, China. The sea-ice area was extracted from Advanced Very High Resolution Radiometer (AVHRR) remote-sensing images using the zonal threshold method. The sea-ice thickness was estimated using a sea-ice model based on shortwave radiation theory and field measurements. The spatio-temporal characteristics of sea-ice volume were then analysed using GIS technology. The results indicate that the Bohai Sea experienced two sea-ice volume peaks in winter 2009/10. The largest sea-ice volume was in Liaodong Bay (∼80.26% of the entire sea-ice volume of the Bohai Sea). Bohai Bay had the second largest ice volume, and Laizhou Bay the smallest. The relationship between sea-ice volume and distance from shore is essentially exponential. The proportion of total sea-ice volume that is 0–10 km from shore is ∼42.43%, whereas the proportion that is 100–110 km from shore is only 0.002%.

Download Full-text

Global economy interacts with climate change to jeopardize species conservation: the case of the greater flamingo in the Mediterranean and West Africa

Environmental Conservation ◽

10.1017/s0376892911000488 ◽

2011 ◽

Vol 39 (1) ◽

pp. 1-3 ◽

Cited By ~ 18

Author(s):

ARNAUD BÉCHET ◽

MANUEL RENDÓN-MARTOS ◽

MIGUEL ÁNGEL RENDÓN ◽

JUAN AGUILAR AMAT ◽

ALAN R. JOHNSON ◽

...

Keyword(s):

Climate Change ◽

Global Economy ◽

World Economy ◽

Species Conservation ◽

Price Volatility ◽

Economic Activities ◽

Anthropogenic Habitats ◽

Recent Financial Crisis ◽

Economic Use

The conservation of many species depends on sustainable economic activities that shape their habitats. The economic use of these anthropogenic habitats may change quickly owing to world trade globalization, market reorientations, price volatility or shifts in subsidy policies. The recent financial crisis has produced a global impact on the world economy. How this may have affected the use of habitats beneficial to biodiversity has not yet been documented. However, consequences could be particularly acute for species sensitive to climate change, jeopardizing long-term conservation efforts.

Download Full-text