Establishment of ocean dumping area capacity assessment model

WANG Zhizu; ZUO Juncheng; XU Ren; JIN Zuowen; CHEN Meixiang

doi:10.1007/s13131-016-0801-5

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Article Navigation > Acta Oceanologica Sinica > 2016 > 35(1): 106-113

WANG Zhizu, ZUO Juncheng, XU Ren, JIN Zuowen, CHEN Meixiang. Establishment of ocean dumping area capacity assessment model[J]. Acta Oceanologica Sinica, 2016, 35(1): 106-113. doi: 10.1007/s13131-016-0801-5

Citation:

WANG Zhizu, ZUO Juncheng, XU Ren, JIN Zuowen, CHEN Meixiang. Establishment of ocean dumping area capacity assessment model[J]. Acta Oceanologica Sinica, 2016, 35(1): 106-113. doi: 10.1007/s13131-016-0801-5

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Establishment of ocean dumping area capacity assessment model

doi: 10.1007/s13131-016-0801-5

1.
Key Laboratory of Coastal Disaster and Protection, Ministry of Education, Hohai University, Nanjing 210000, China
2.
The State Oceanic Administration, the East China Sea Environmental Monitoring Center, Shanghai 200137, China
3.
East China Sea Branch of State Oceanic Administration, Shanghai 200137, China

Received Date: 2014-11-04
Rev Recd Date: 2015-07-14

Abstract

Abstract

Dumping area capacity is mainly affected by the hydrodynamic process (tidal sediment, storm surge and wave, etc.) as well as the size and depth of dumping area. Based on three-dimensional ocean circulation model known as FVCOM (Finite Volume Coast and Ocean Model) and the stochastic dynamic statistical analysis model, taking advantage of dumping ground topography evolution and dumping quantity, the author aims to discuss the influence of hydrodynamic processes and dumping activity so as to built a new model of ocean dumping area capacity. With the data of depth and dumped amount in the dumping area, the changes of bottom topographic which caused by tidal current under the natural condition based on the FVCOM hydrodynamic and sediment module, the author strive to analyze the statistical relation of the changes for dumping amount, tidal current and bottom topographic. Through real data to fit revision coefficient values, which will be regarded as topographic changes reference value affected by wave and storm surges. Thus taking this evaluation as the long-term changes in the dumping capacity. In the premise of setting up the threshold of bottom topographic changes, the dumping area capacity is calculated. Take Yangtze Estuary No. 1 dumping area as an example, As the water depth reduces by 0.5 m annually, the dumping area capacity is about 6.7 million m³/a, the model results are in reasonable agreement with the actual amount. Then the model is validated in Luoyuan Bay dumping area, Shengsishangchuan Mountain dumping area, Dongding dumping area, Dongshan dumping area, and Wenzhou Port dumping area, it is turns out the results are similar to that of the actual observations.
- capacity, long term changes, assessment model, FVCOM

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References

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