The International Journal of Ocean and Climate Systems最新文献_第9页

A Practical Post-Processing Method to Obtain Wave Parameters from Phase-Resolving Wave Model Results 从相位解析波模型结果中获取波参数的一种实用后处理方法

The International Journal of Ocean and Climate Systems Pub Date : 2012-12-01 DOI: 10.1260/1759-3131.3.4.203

M. P. D. de Jong, M. Borsboom

引用次数: 5

Application of Soft Computing Tools for Wave Prediction at Specific Locations in the Arabian Sea Using Moored Buoy Observations 软计算工具在阿拉伯海特定地点用系泊浮标观测预测海浪的应用

The International Journal of Ocean and Climate Systems Pub Date : 2012-12-01 DOI: 10.1260/1759-3131.3.4.255

J. Vimala, G. Latha, R. Venkatesan

引用次数: 3

Impact of Climate Change Induced Cyclonic Surge on the Coastal Island: Kutubdia and Sandwip and Proper Adaptive Measures 气候变化引起的风暴潮对沿海岛屿的影响:Kutubdia和Sandwip及适当的适应措施

The International Journal of Ocean and Climate Systems Pub Date : 2012-12-01 DOI: 10.1260/1759-3131.3.4.217

Md. M. Hasan, U. Navera

{"title":"Impact of Climate Change Induced Cyclonic Surge on the Coastal Island: Kutubdia and Sandwip and Proper Adaptive Measures","authors":"Md. M. Hasan, U. Navera","doi":"10.1260/1759-3131.3.4.217","DOIUrl":"https://doi.org/10.1260/1759-3131.3.4.217","url":null,"abstract":"Climate change is the burning issue and utmost environmental challenge for the world today and Bangladesh is considered as the most vulnerable in recent days. Besides, due to its geophysical setting Bangladesh coast is frequently visited by the cyclone-induced storm surge. The assessment of impact of climate change induced cyclonic storm surge and evaluation of potential adaptive measures requires use of scientifically based and tested state-of-the-art mathematical modelling tools. In this study SIDR (a severe cyclone that hit the coast of Bangladesh in 2007) has been selected to assess the vulnerability of selected two islands Sandwip and Kutubdia. Three different tracks were simulated to assess the effect of position of Landfall for each island. It is evident from the model results that if SIDR comes with 0.59m Sea Level Rise (SLR) and 1.0m SLR during high tide, maximum surge height above land level will be 5.1 m and 5.5 m for Kutubdia island and 6.5 m and 6.9 m for Sandwip island respectively. If the same cyclone comes with 10% increased wind speed during high tide with 59 cm SLR, surge height may increase by 0.9 m for Sandwip island and 0.45m for Kutubdia island. Again, it has been found from the study that 200m, 400m and 600 m width of Mangrove can reduce the surge height by 12 cm, 15 cm and 18 cm respectively. This reduction is not enough but it reduces current speed to one-third from 1.8 m/s to 0.65 m/s at Sandwip island. As it reduces the current speed to a larger extent it is favourable for the stability of the coastal embankment and other coastal infrastructure. In view of the above it is the high time to revisit the coastal infrastructure to make it climate resilient.","PeriodicalId":105024,"journal":{"name":"The International Journal of Ocean and Climate Systems","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115134506","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

Extreme Storm Surges and Coastal Flooding: Intangible Flood Losses in Integrated Risk Analysis 极端风暴潮与沿海洪水:综合风险分析中的无形洪水损失

The International Journal of Ocean and Climate Systems Pub Date : 2012-12-01 DOI: 10.1260/1759-3131.3.4.241

D. R. Dassanayake, A. Burzel, H. Oumeraci

{"title":"Extreme Storm Surges and Coastal Flooding: Intangible Flood Losses in Integrated Risk Analysis","authors":"D. R. Dassanayake, A. Burzel, H. Oumeraci","doi":"10.1260/1759-3131.3.4.241","DOIUrl":"https://doi.org/10.1260/1759-3131.3.4.241","url":null,"abstract":"German coasts are often affected by extreme storm surges which have already led to major damages along the coastline in the past. The joint research project “XtremRisK” was initiated with the main objective of enhancing the knowledge with respect to the uncertainties of extreme storm surge predictions as well as quantifying exemplarily the flood risk under current conditions and future climate scenarios for two pilot sites in Germany: Sylt Island representative for an open coast and Hamburg for an estuarine urban area. Flood risk is generally determined by the product of the flooding probability and the possible losses associated with the flood event. Flood losses are categorized as tangible and intangible depending on whether or not the losses can be assessed in monetary values. Up to date, intangible loses are not or only partially incorporated in flood risk analysis due to the lack of appropriate evaluation and integration methodologies. This study focuses on developing methodologies for the evaluation of intangible losses due to flooding and for their integration with tangible losses in flood risk analysis","PeriodicalId":105024,"journal":{"name":"The International Journal of Ocean and Climate Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129850133","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

Shallow Water Hydrodynamic Investigation of Local Scour over Smooth and Rough Sediment Beds 光滑和粗糙沉积层局部冲刷的浅水水动力研究

The International Journal of Ocean and Climate Systems Pub Date : 2012-12-01 DOI: 10.1260/1759-3131.3.4.229

M. Jayaratne, M. Salim

引用次数: 1

Assessment of Salinity Distributions and Residual Currents at the Northern Bay of Bengal considering Climate Change Impacts 考虑气候变化影响的孟加拉湾北部盐度分布和剩余海流评估

The International Journal of Ocean and Climate Systems Pub Date : 2012-09-01 DOI: 10.1260/1759-3131.3.3.173

M. Hussain, A. Islam, M. A. Hossain, Md. Tanimul Hoque

引用次数: 7

Engineering Properties of Geotextile Sand Containers and Their Effect on Hydraulic Stability and Damage Development of Low-Crested / Submerged Structures 土工织物砂容器的工程特性及其对低波峰/水下构筑物水力稳定性和损伤发展的影响

The International Journal of Ocean and Climate Systems Pub Date : 2012-09-01 DOI: 10.1260/1759-3131.3.3.135

D. T. Dassanayake, H. Oumeraci

引用次数: 20

Numerical Simulation of Solitary Waves Using Smoothed Particle Hydrodynamics Method 用光滑粒子流体力学方法模拟孤立波

The International Journal of Ocean and Climate Systems Pub Date : 2012-09-01 DOI: 10.1260/1759-3131.3.3.187

Swapnadip De Chowdhury, S. Sannasiraj

{"title":"Numerical Simulation of Solitary Waves Using Smoothed Particle Hydrodynamics Method","authors":"Swapnadip De Chowdhury, S. Sannasiraj","doi":"10.1260/1759-3131.3.3.187","DOIUrl":"https://doi.org/10.1260/1759-3131.3.3.187","url":null,"abstract":"Understanding shallow water wave propagation is of major concern in any coastal mitigation effort. Many times, a solitary wave replicates a shallow water wave in its extreme sense which includes a tsunami wave. It is mainly due to known physical characteristics of such waves. Therefore, the study of propagation of solitary waves in the near shore waters is of equal importance in the context of non linear water waves. Owing to the significant growth in computational technologies in the last few decades, a significant number of numerical methods have emerged and applied to simulate nonlinear solitary wave propagation. In this study, one such method, the Smoothed Particle Hydrodynamics (SPH) method has been described to simulate the solitary waves. The split-up of a single solitary wave while it crosses a continental kind of shelf has been simulated by the present model. Then SPH model is coupled with the Boussinesq model to predict the time interval between two successive solitary waves on landfall. It has also been shown to be equally efficient in simulating the wave breaking while a solitary wave propagates over a mild slope.","PeriodicalId":105024,"journal":{"name":"The International Journal of Ocean and Climate Systems","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123284980","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

Investigation on Harmonic Generation of Submerged Elastic Plate Using Wave Flume Experiments 水下弹性板谐波产生的波浪水槽试验研究

The International Journal of Ocean and Climate Systems Pub Date : 2012-09-01 DOI: 10.1260/1759-3131.3.3.151

M. Thayapraba, K. Murali, V. Subramanian

引用次数: 1

Application of Satellite Products to Study Upwelling, Chlorophyll and Mixed Layer Depth of Southeastern Arabian Sea 应用卫星产品研究阿拉伯海东南部上升流、叶绿素和混合层深度

The International Journal of Ocean and Climate Systems Pub Date : 2012-06-01 DOI: 10.1260/1759-3131.3.2.97

C. Jayaram, Bhaskar T V S Udaya, J. Ajith, A. N. Balchand

{"title":"Application of Satellite Products to Study Upwelling, Chlorophyll and Mixed Layer Depth of Southeastern Arabian Sea","authors":"C. Jayaram, Bhaskar T V S Udaya, J. Ajith, A. N. Balchand","doi":"10.1260/1759-3131.3.2.97","DOIUrl":"https://doi.org/10.1260/1759-3131.3.2.97","url":null,"abstract":"The role of wind stress in modulating upwelling and subsequent changes in mixed layer depth and chlorophyll concentration in southeastern Arabian Sea are studied for the period encompassing 2000–2008. During southwest monsoon season favoring upwelling in this region, it is observed that decrease in wind stress is always followed by an increase in chlorophyll concentration with approximately two weeks delay, accompanied by the shoaling of mixed layer depth, whereas the opposite is observed during high wind stress periods. This is attributed to the mixing and entrainment of nutrients into the euphotic zone which enable increase in surface chlorophyll and thereby boosting the primary productivity of the region. Wavelet analysis is used to deduce the temporal variability of winds, chlorophyll and mixed layer for the region. A time lag of 2 weeks is observed between the decrease in wind stress followed by a high in the surface chlorophyll concentration, often well captured by satellite. Another interesting observation is the bimodal variability of chlorophyll-a concentration during summer monsoon is observed in this region which was hitherto unnoticed. This spatial and temporal relation between wind, chlorophyll and mixed layer depth can provide valuable insight towards future studies on upwelling induced productivity for this region.","PeriodicalId":105024,"journal":{"name":"The International Journal of Ocean and Climate Systems","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125684272","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: 9