Study on defining the river-sea boundary based on B-L curve

XIAO Rui; JIANG Xue-zhong

doi:10.3969/j.issn.1001-909X.2017.03.006

PDF(4906 KB)

Journal of Marine Sciences ›› 2017, Vol. 35 ›› Issue (3) : 42-53. DOI: 10.3969/j.issn.1001-909X.2017.03.006

Study on defining the river-sea boundary based on B-L curve

XIAO Rui, JIANG Xue-zhong^*

Author information +

History +

Abstract

Estuary is a transitional area from river to sea, which represent an environment with complex essential factors, so they are highly different from each other in terms of the patterns of temporal and spatial variability of the processes. Generally, there are many parameters to define the boundary between the river and the sea. The relationship among the demarcation methods based on the geometric and geomorphologic character and other estuarine parameters was analyzed. For each of these, a geomorphic node may be the most suitable method to determine the location of boundary. At a point on the river centerline, a function of B=f(L) was defined, where B is the channel width at this point and L is the distance from this point to the entrance of estuary along the central axis of the river. By constructing a mapping function, the geomorphic node can be found and the quantitative segmentation of the boundary between the river and the sea can be realized. For different kind of estuaries, the B-L curve was constructed to defined the river-sea boundary based on the geomorphic node. The result show that for the blocked estuary the rates of river width variation at the geomorphic node are -0.5 to 0. For the channel-form estuary and interconnected estuary, the rates of river width variation at the geomorphic node are 0.5 to 1.2. For the firth estuary,the rates of river width variation at the geomorphic node are 0.6 to 1.5. For the funnel-shaped delta, the rates of river width variation at the geomorphic node are 1.3 to 4.5. For the bird-foot delta and fan delta,the rates of river width variation are always 0 to 0.2, and the entrance of estuary is regarded as geomorphic node. This B-L curve is applied to measure and calculate the length of estuary shoreline of China mainland, and some perfect results are acquired.

Key words

river-sea boundary / geomorphological parameters / geomorphic node / rate of river width variation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

XIAO Rui, JIANG Xue-zhong. Study on defining the river-sea boundary based on B-L curve[J]. Journal of Marine Sciences. 2017, 35(3): 42-53 https://doi.org/10.3969/j.issn.1001-909X.2017.03.006

References

[1] ANKER H T, NELLEMANN V, SVERDRUP-JENSEN S. Coastal zone management in Denmark: ways and means for further integration[J]. Ocean & Coastal Management,2004,47(9-10):495-513.
[2] POGUE P, LEE V. Providing public access to the shore: The role of coastal zone management programs[J]. Coastal Management,1999,27(2-3):219-237.
[3] YU Jian,WU Sang-yun, LI Ping. Study on the method for delimiting sealand demarcation line in Chinese river estuary area[J]. Coastal Engineering,2003,22(2):51-59.
于健,吴桑云,李萍.我国入海河流河口地区海陆分界线划分方法研究[J].海岸工程,2003,22(2):51-59.
[4] LI Ping, XU Xing-yong. Delimitation between river and sea in the estuary areas[J]. Marine Geology Letters,2003,19(3):10-13,18.
李萍,徐兴永.三角洲型河口河海划界[J].海洋地质动态,2003,19(3):10-13,18.
[5] CHEN You-yuan, LI Li, CONG Yan-Ping. Application of analytic hierarchy process to delimitating the line between sea and land in the Yellow River Estuary[J]. Periodical of Ocean University of China,2008,38(6):971-974,1 012.
陈友媛,李利,丛艳平.层次分析法在黄河口河海划界中的应用[J].中国海洋大学学报:自然科学版,2008,38(6):971-974,1 012.
[6] XU Jian-ping, YANG Yi-ju, ZHU Bo-kang. Research into the river-sea delimitations of some key estuaries in China[J]. Journal of Marine Sciences,2009,27(s1):42-46.
许建平,杨义菊,朱伯康.我国重要入海河口河海界线划分探讨[J].海洋学研究,2009,27(s1):42-46.
[7] CHEN Shen-liang, HU Fang-xi, HU Hui, et al.On the natural conditions and program for river-sea delimitation in Changjiang River Estuary[J]. Journal of Marine Sciences,2009,27(s1):1-9.
陈沈良,胡方西,胡辉,等.长江口区河海划界自然条件及方案探讨[J].海洋学研究,2009,27(s1):1-9.
[8] QIU Zhi-gao. Study on the method for delimiting sea-land demarcation line in estuary areas[D]. Qingdao: Ocean University of China,2004.
邱志高.河口海陆分界线划分方法研究[D].青岛:中国海洋大学,2004.
[9] CHENT Y, KAO S, CHIANG H. Defining an estuary using the Hilbert-Huang transform[J]. Hydrological Sciences Journal,2013,58(4):841-853.
[10] POTTER I C, CHUWEN B M, HOEKSEMA S D, et al. The concept of an estuary: A definition that incorporates systems which can become closed to the ocean and hypersaline[J]. Estuarine, Coastal and Shelf Science,2010,87(3):497-500.
[11] GAO Shu. Feasibility of defining the river-sea boundary by coastal geomorphological parameters[J]. Journal of Marine Sciences,2009,27(s1):23-27.
高抒.从海岸地貌学看河海划界的可操作性[J].海洋学研究,2009,27(s1):23-27.
[12] ZHAO Jin-sheng. Coastal and estuarine dynamics[M].Beijing: China Ocean Press,1993.
赵今声.海岸河口动力学[M].北京:海洋出版社,1993.
[13] SAMOILOV. Theory and methodology of estuarine evolution[M]. Beijing: Academic Press,1958.
萨莫依洛夫.河口演变过程理论及研究方法[M].北京:科学出版社,1958.
[14] GEYER W R, MACCREADY P. The estuarine circulation[J]. Annual Review of Fluid Mechanics,2013,46(1):175-197.
[15] PERKINS E J. The biology of estuaries and coastal waters[M]. London: Academic Press,1974.
[16] DAI Zhi-jun, REN Jie, ZHOU Zuo-fu. Research advance in definition and classification of estuaries[J]. Jouranal of Oceanography in Taiwan Strait,2000(02):254-260.
戴志军,任杰,周作付.河口定义及分类研究的进展[J].台湾海峡,2000(02):254-260.
[17] GU Wei-Hao. The definition and classification of estuaries[J]. Marine Science,1982,6(6):42-44.
顾伟浩.河口的定义及其分类[J].海洋科学,1982,6(6):42-44.
[18] XU Ning. Research on spatial and temporal variation of China mainland coastline and coastal engineering[D]. Beijing: University of Chinese Academy of Sciences,2016.
许宁.中国大陆海岸线及海岸工程时空变化研究[D].北京:中国科学院大学,2016.
[19] GAO Yi, WANG Hui, SU Fen-zhen, et al. The analysis of spatial temporal changes of the continental coastlines of China in recent three decades[J].Acta Oceanologica Sinica,35(6):31-42.
高义,王辉,苏奋振,等.中国大陆海岸线近30a的时空变化分析[J].海洋学报,2013,35(6):31-42.
[20] ZHANG Yun, ZHANG Jian-li, LI Xue-ming, et al. Stability of continental coastline in China since 1990[J].Scientia Geogeraphica Sinica,2015,35(10):1 288-1 293.
张云,张建丽,李雪铭,等.1990年以来中国大陆海岸线稳定性研究[J].地理科学,2015,35(10):1 288-1 293.