Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes最新文献

Circulations in the Pearl River Estuary: Observation and Modeling 珠江口环流:观测与模拟

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2020-02-07 DOI: 10.5772/intechopen.91058

Jiayi Pan, W. Lai, A. Devlin

{"title":"Circulations in the Pearl River Estuary: Observation and Modeling","authors":"Jiayi Pan, W. Lai, A. Devlin","doi":"10.5772/intechopen.91058","DOIUrl":"https://doi.org/10.5772/intechopen.91058","url":null,"abstract":"This chapter reports a cruise survey on the Pearl River Estuary (PRE) and adjacent costal water in the period between May 3, 2014 and May 11, 2014. The circulation and salinity structure were sampled for different tidal phases. With the cruise data, a “ sandwich ” structure of the lateral salinity distribution and a two-layer structure of longitudinal circulation were identified, together with high variations influenced by wind and tide. Furthermore, longitudinally orientated convergence or divergence of the lateral velocity close to the channel location for certain tidal conditions was observed. The finite volume community ocean model (FVCOM) is configured and run with high spatial resolution of 100 m in the PRE. An atmospheric model, the Weather Research and Forecasting (WRF) Model, is also run to provide high spatial and temporal resolution of atmospheric forcing for the FVCOM. The FVCOM modeling skill assessment is conducted using the cruise salinity and velocity data, as well as water levels, showing that the model can well simulate the velocity and salinity structures. The numerical model reveals that there is a strong neap-spring cycle for the PRE de-tided circulation with 0.37 m s (cid:1) 1 during the neap tide about 42% stronger than that (0.26 m s (cid:1) 1 ) during the spring tide in the surface layer.","PeriodicalId":331685,"journal":{"name":"Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114061864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Variations of the Absorption of Chromophoric Dissolved Organic Matter in the Pearl River Estuary 珠江口水体对显色性溶解有机物吸收的变化

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2020-01-25 DOI: 10.5772/intechopen.90765

X. Lei, Jiayi Pan, A. Devlin

{"title":"Variations of the Absorption of Chromophoric Dissolved Organic Matter in the Pearl River Estuary","authors":"X. Lei, Jiayi Pan, A. Devlin","doi":"10.5772/intechopen.90765","DOIUrl":"https://doi.org/10.5772/intechopen.90765","url":null,"abstract":"Analysis of in-situ measurements during a spring cruise survey in the Pearl River Estuary (PRE) reveals that, controlled by the two-layer gravitational circulation, chromophoric dissolved organic matter (CDOM) absorption shows a clear horizontal distribution pattern at both water surface and bottom, with higher CDOM absorption and lower spectral slope in the northwestern estuary, and a reversed pattern in the southeastern estuary and near the Hong Kong waters. The surface CDOM has higher absorption and lower spectral slope than the bottom. Horizontal transport is suggested to be the dominant hydrodynamic mechanism affecting CDOM distribution pattern in the PRE. With a regional algorithm tailored for the PRE CDOM absorption retrieval, a time series of CDOM absorption and spectral slope in the PRE and the Hong Kong waters in spring from 2012 to 2018 is produced based on satellite images obtained by four sensors with different spatial and spectral resolutions: the Visible Infrared Imaging Radiometer Suite (VIIRS), the Ocean and Land Colour Instrument (OLCI), the Hyperspectral Imager for the Coastal Ocean (HICO), and the Operational Land Imager (OLI). A correlation is revealed between the multi-temporal CDOM absorption and the monthly averaged river discharge, indicating the capability of CDOM ocean color products in identifying hydrodynamic processes in estuaries and coastal waters.","PeriodicalId":331685,"journal":{"name":"Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115109599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coastal Altimetry: A Promising Technology for the Coastal Oceanography Community 沿海测高:沿海海洋学界的一项有前途的技术

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2019-11-07 DOI: 10.5772/intechopen.89373

Xiyu Xu, Ke Xu, Ying Xu, Lingwei Shi

引用次数: 4

A 30-Year History of the Tides and Currents in Elkhorn Slough, California 加州埃尔克霍恩斯劳30年的潮汐和洋流历史

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2019-10-23 DOI: 10.5772/intechopen.88671

W. Broenkow, L. Breaker

{"title":"A 30-Year History of the Tides and Currents in Elkhorn Slough, California","authors":"W. Broenkow, L. Breaker","doi":"10.5772/intechopen.88671","DOIUrl":"https://doi.org/10.5772/intechopen.88671","url":null,"abstract":"Elkhorn Slough was first exposed to the waters of Monterey Bay with the construction of Moss Landing Harbor in 1946. It follows a 10-km path inland from Moss Landing Harbor. Today, it is a habitat and sanctuary for a wide variety of marine mammals, fish, and seabirds. The currents, tides and physical properties of Elkhorn Slough have been observed since 1970. It is an ebb-dominated estuary due to the asymmetric rise and fall of the tides which produces ebb currents that dominate. Tidal distortion increases inland due to frictional effects and extensive mud flats and Salicornia marsh. Tidal distortion also produces overtides and compound tides. Tidal elevations and currents often reveal the characteristics of a standing wave system. The temperature and salinity of lower Elkhorn Slough reflect the influence of Monterey Bay waters, whereas the upper Slough is more sensitive to local processes. Maximum tidal currents in Elkhorn Slough have increased from (cid:1) 75 to (cid:1) 150 cm/s since 1970. This increase is primarily due to the change in tidal prism which has increased from (cid:1) 2.5 to (cid:1) 7.6 (cid:3) 10 6 m 3 between 1956 and 2003. Finally, this increase is due to both man-made changes and continued tidal erosion.","PeriodicalId":331685,"journal":{"name":"Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125046652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Phytoplankton Biomass and Environmental Descriptors of Water Quality of an Urban Lagoon 城市泻湖浮游植物生物量与水质环境描述因子

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2019-10-03 DOI: 10.5772/intechopen.87955

M. Cutrim, F. S. Ferreira, L. F. Cavalcanti, A. K. Sá, A. C. Azevedo-Cutrim, Ricardo Luvizotto Santos

{"title":"Phytoplankton Biomass and Environmental Descriptors of Water Quality of an Urban Lagoon","authors":"M. Cutrim, F. S. Ferreira, L. F. Cavalcanti, A. K. Sá, A. C. Azevedo-Cutrim, Ricardo Luvizotto Santos","doi":"10.5772/intechopen.87955","DOIUrl":"https://doi.org/10.5772/intechopen.87955","url":null,"abstract":"The Jansen lagoon is a coastal system formed by damming the Ana Jansen Creek, which is located in the northwest of São Luís Island (northern Brazil) and is under high urban influence. The use of indexes to assess the water quality in aquatic systems is important because they show the degradation degree of an area and give support to measures for the sustainability and protection of aquatic life, consequently. For the seasonal and spatial analysis of environmental and biological variables, six bimonthly surveys between November 2011 and September 2012 were carried out at five sampling sites. In addition, indexes such as the index of minimum parameters for the protection of aquatic communities, Trophic State Index, and Aquatic Life Protection Index were applied to evaluate the water quality. High levels of dissolved oxygen (DO), pH, total phosphorus, and chlorophyll a were observed in the lagoon waters. In general, the water quality indexes showed that the Jansen lagoon has a poor water quality due to elevated DO and pH as well as high concentration of surfactants and phenols. These environmental conditions favored the intense process of eutrophication (hypereutrophy) and environmental degradation of the area, affecting the development of aquatic biota.","PeriodicalId":331685,"journal":{"name":"Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128236833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strengthening Democracy in Indonesian Marine Spatial Planning through Open Spatial Data 通过开放空间数据加强印尼海洋空间规划的民主

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2019-09-13 DOI: 10.5772/INTECHOPEN.88287

A. Yudono, P. Yudiarso

{"title":"Strengthening Democracy in Indonesian Marine Spatial Planning through Open Spatial Data","authors":"A. Yudono, P. Yudiarso","doi":"10.5772/INTECHOPEN.88287","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.88287","url":null,"abstract":"Sea and coastal areas are locations that have enormous potential that can contribute greatly to the national economic growth. The potential of marine and coastal areas includes the potential of fisheries. Fish life in shallow water or estuary is relevant to the existence of seagrass beds as their habitat. Seagrass in coastal waters is one of the attractions of fish for reproduction (spawning ground), fish growth place (nursery ground) and feeding ground. Good management requires a well-structured plan that takes into account geographical conditions and the sustainability of the plan in the future for the role of marine spatial planning. Marine spatial planning is a spatial guid-ance to manage well coastal and ocean areas with more integration and sustainability through identifying and mapping all marine issues. One method of mapping issues in marine spatial planning is open spatial data. The coherence and synergy of spatial planning can be achieved through dialogue between the elites and the public. A solution to bridge political communication between the elite and the public is open spatial data. In this context, the technicalities of open spatial data are important factors for achieving consensus. Relevant non-technical issues, such as data management, human resources and leadership factors are critical points for this potential open spatial data.","PeriodicalId":331685,"journal":{"name":"Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114620479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Response of Coastal Upwelling East of Hainan Island in the South China Sea to Sudden Impact and Long-Term Variability of Atmospheric Forcing 南海海南岛以东沿海上升流对大气强迫突然冲击和长期变率的响应

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2019-09-11 DOI: 10.5772/intechopen.88828

L. Xie, Mingming Li

引用次数: 2

Environmental Problems and Coastal Mitigation in South America: Examples from Northeast Brazil and Northern Colombia 南美洲的环境问题和沿海缓解:以巴西东北部和哥伦比亚北部为例

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2019-08-05 DOI: 10.5772/INTECHOPEN.87959

Vanda Claudino-Sales, Ping Wang, F. P. Vasconcelos, Adely Pereira Silveira

引用次数: 1

Structure and Dynamics of Plumes Generated by Small Rivers 小河流形成的羽流的结构和动力学

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2019-07-23 DOI: 10.5772/INTECHOPEN.87843

A. Osadchiev, P. Zavialov

引用次数: 18

Linear and Nonlinear Responses to Northeasters Coupled with Sea Level Rise: A Tale of Two Bays 海平面上升对东北地区的线性和非线性响应:两个海湾的故事

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes Pub Date : 2019-07-12 DOI: 10.5772/INTECHOPEN.87780

Stephen Moore, H. Xue, N. Pettigrew, J. Cannon

{"title":"Linear and Nonlinear Responses to Northeasters Coupled with Sea Level Rise: A Tale of Two Bays","authors":"Stephen Moore, H. Xue, N. Pettigrew, J. Cannon","doi":"10.5772/INTECHOPEN.87780","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.87780","url":null,"abstract":"This study aimed at dissecting the influence of sea level rise (SLR) on storm responses in two bays in the Gulf of Maine through high-resolution, three-dimen-sional, hydrodynamic modeling. Saco Bay, an open bay characterized by gentle coastal slopes, provided a contrast to Casco Bay that has steep shorelines and is shel-tered by barrier islands and peninsulas. The Finite-Volume Coastal Ocean Model (FVCOM) was implemented for Saco Bay and Casco Bay to simulate the February 1978 northeaster and an April freshwater discharge event in 2007 following the Patriots Day storm. Both events were repeatedly simulated under SLR scenarios ranging from 0 to 7 ft. Modeled storm responses were identified from the 1978 Blizzard simulations and were tracked across SLR scenarios. By comparing changes in inundation, storm currents, and salinity distribution between the two bays, freshwater discharge and bathymetric structure were isolated as two determining factors in how storm responses change with the rising sea level. The steplike bottom relief at the shoreline of Casco Bay sets up nonlinear responses to SLR. In contrast, storm responses in Saco Bay varied significantly with SLR due to alterations in river dynamics attributed to SLR-induced flooding.","PeriodicalId":331685,"journal":{"name":"Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127437952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2