2008 IEEE/OES US/EU-Baltic International Symposium最新文献_第2页

Hydrodynamic-oil spill modeling forecasting system 流体动力学-溢油建模预测系统

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625528

R. Tamsalu, S. Ovsienko, V. Zalesny

引用次数: 1

Assimilation of satellite data in a Suspended Particulate Matter transport model 悬浮颗粒物输运模式中卫星资料的同化

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625513

M. Dobrynin, H. Gunther, G. Gayer

{"title":"Assimilation of satellite data in a Suspended Particulate Matter transport model","authors":"M. Dobrynin, H. Gunther, G. Gayer","doi":"10.1109/BALTIC.2008.4625513","DOIUrl":"https://doi.org/10.1109/BALTIC.2008.4625513","url":null,"abstract":"The GKSS-BSH three-dimensional suspended particulate matter (SPM) transport module was combined with the hydrodynamic circulation model HAMSOM to simulate 2 years of SPM distributions in the North Sea with fine spatial resolution (3 km horizontally and 21 vertical layers). In addition, the model was forced by wave fields computed with a WAM model set-up on the same grid. The SPM model calculates distributions of three SPM fractions with different settling velocities in the water column and the corresponding fine sediment fractions in the upper 20 cm of the bottom. The local shear stress velocities, derived from currents and waves control the processes of sedimentation, re-suspension and erosion. Waves, currents and the different sinking velocities of the three sediment fractions govern the vertical exchange. In a first step, the results were compared to ENVISAT MERIS satellite data and to in-situ measurements, and a quality control system for the satellite data was developed. In a second step, the satellite data were assimilated into the model using a sequential optimum interpolation scheme. Our focus is to develop a tool for SPM calculations based on modelling and data assimilation, which can be used for operational purpose. Results of the SPM simulations with and without assimilation will be presented and compared with independent observations.","PeriodicalId":6307,"journal":{"name":"2008 IEEE/OES US/EU-Baltic International Symposium","volume":"27 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2008-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76036505","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

Analysis and management of ecological risk for marine ecosystems and people in the Baltic Sea region 波罗的海地区海洋生态系统和人类生态风险的分析和管理

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625493

V. Anikiev, J.K. Chiasnavichius

引用次数: 1

Sun glint correction of airborne AISA images for mapping shallow-water benthos 用于测绘浅水底栖生物的机载AISA图像的太阳闪烁校正

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625522

E. Vahtmae, T. Kutser

{"title":"Sun glint correction of airborne AISA images for mapping shallow-water benthos","authors":"E. Vahtmae, T. Kutser","doi":"10.1109/BALTIC.2008.4625522","DOIUrl":"https://doi.org/10.1109/BALTIC.2008.4625522","url":null,"abstract":"Airborne sensors have higher spatial and spectral resolution than satellite sensors, providing greater accuracy in benthic habitat mapping in case of high spatial heterogeneity. Nevertheless, the effect of wave-induced sun glint may obscure the radiance originating from within the water. Such glint is particularly noticeable due to the high spatial resolution of the sensor and may impede mapping of benthic features. This paper describes the application of the sun glint correction schemes on to airborne hyperspectral AISA measurements acquired on the area of the West-Estonian archipelago during the campaign in July 2006. Currently proposed sun glint removal procedures assume zero water leaving signal in near infrared part of spectrum. This assumption is not true in waters less than about 2 m deep where part of the water leaving signal is originated from the bottom. As a result the shallow water pixels are overcorrected during glint removal procedure and the shapes of reflectance spectra are distorted. This has serious implications on shallow water bottom classification results, especially if spectral libraries of in situ measured or modelled reflectance spectra are used in classification of remote sensing imagery. Therefore, it is important to preserve spectral signatures of these areas if sun glint removal is necessary. We propose an alternative sun glint removal procedure where the amount of glint in each pixel is estimated from the depth of oxygen absorption feature at 760 nm relative to a baseline. The new method removes sun glint successfully and at the same time preserves the shape and magnitude of shallow water reflectance spectra.","PeriodicalId":6307,"journal":{"name":"2008 IEEE/OES US/EU-Baltic International Symposium","volume":"78 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2008-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74158971","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

United States IOOS - A national look 美国IOOS -一个国家的样子

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625492

Z. Willis

{"title":"United States IOOS - A national look","authors":"Z. Willis","doi":"10.1109/BALTIC.2008.4625492","DOIUrl":"https://doi.org/10.1109/BALTIC.2008.4625492","url":null,"abstract":"The United States Integrated Ocean Observing System(IOOS) is a user-driven, coordinated network of people, organizations, and technology that generate and disseminate continuous data about our coastal waters, great lakes, and oceans. IOOS is intended to be a major shift in approach to ocean observing, drawing together the vast network of disparate, federal and non-federal observing systems to produce a cohesive suite of data, information, and products at a sufficient geographic and temporal scale to support decision-making. As the system matures, IOOS is expected to advance beyond its current science and management applications toward an instrument of policy and governance. Current efforts only scratch the surface of what we need to know about our oceans and coasts to fully assess their impact on commerce and transportation, weather and climate, and ecosystems. The power of IOOS is in its partnerships. Seventeen United States federal agencies and eleven regional coastal ocean observing systems (RCOOSs) share responsibility for the design, implementation, operation, and improvement of the United States. IOOS over time. Two interdependent components constitute the United State IOOS: (1) global ocean component and (2) coastal component. The latter includes the national set of observations for the Great Lakes and the EEZ, as well as the network of RCOOSs. Federal agencies are responsible for the design, operation, and improvement of both the global component and the national network of observations. RCOOSs augment existing federal observing capacity around the nation and ensure strong customer focus and connection. Each RCOOS, which is comprised of a series of sub-regional observing systems, is designed and managed by a single regional association (RA).","PeriodicalId":6307,"journal":{"name":"2008 IEEE/OES US/EU-Baltic International Symposium","volume":"25 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2008-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91098343","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

CFD simulations and real world measurements of drag of biologically inspired underwater robot 仿生水下机器人阻力的CFD模拟和实际测量

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625556

M. Listak, D. Pugal, M. Kruusmaa

引用次数: 8

Sand sources for beach replenishment 沙滩补充的沙源

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625545

S. Gulbinskas, R. Milerienė, N. Blažauskas

引用次数: 0

Expendable benthic lander (XBL) 一次性底栖着陆器(XBL)

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625488

A. Williams

{"title":"Expendable benthic lander (XBL)","authors":"A. Williams","doi":"10.1109/BALTIC.2008.4625488","DOIUrl":"https://doi.org/10.1109/BALTIC.2008.4625488","url":null,"abstract":"Observatories on the sea floor are about to permit long term observations of physical and chemical processes. Most of these observatories will deliver their measurements ashore in real time or near real time and many will derive power from a cable that connects them to shore. The cable is both empowering and limiting insofar as it permits long deployments and real time data return but restricts observations to regions where the cable has been laid. There remains a need for observatory type arrays of sensors where cables have not been emplaced. The expendable benthic lander is an instrument that can be deployed in such an array. The requirements for such an instrument are that it be inexpensive so that large numbers can be deployed in an array, easily deployed so that costs of laying the array are modest, capable so that physical and chemical properties can be resolved at the speed and sensitivity required to understand processes of importance, and recoverable so that the data may be analyzed in detail. Physical instrument recovery is a desirable attribute but not as important as data recovery. Since data may be recovered even if the instrument is lost, the term expendable is applied to this benthic lander although this is not the primary mode of use.","PeriodicalId":6307,"journal":{"name":"2008 IEEE/OES US/EU-Baltic International Symposium","volume":"21 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2008-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82592189","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

Remote sensing of coastal ecosystems 沿海生态系统遥感

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625503

V. Klemas

{"title":"Remote sensing of coastal ecosystems","authors":"V. Klemas","doi":"10.1109/BALTIC.2008.4625503","DOIUrl":"https://doi.org/10.1109/BALTIC.2008.4625503","url":null,"abstract":"Advances in sensor design and data analysis techniques are now making remote sensing systems practical and attractive for coastal ecosystem research and management. Multispectral and hyperspectral imagers are available for mapping coastal land cover and concentrations of organic/inorganic suspended particles and dissolved substances in coastal waters. Thermal infrared scanners can map sea surface temperatures accurately and chart coastal currents, while microwave radiometers can measure ocean salinity, soil moisture and other hydrologic parameters. Radar imagers, scatterometers and altimeters provide information on ocean waves, ocean winds, sea surface height and coastal currents. Using airborne LIDARs one can produce bathymetric maps, even in moderately turbid coastal waters. Since coastal ecosystems have high spatial complexity and temporal variability, they frequently have to be observed from both, satellite and aircraft , in order to obtain the required spatial, spectral and temporal resolutions. A reliable field data collection approach using ships, buoys, and field instruments with a valid sampling scheme is required to calibrate and validate the remotely sensed information. This paper presents a brief overview of recent advances in coastal remote sensing.","PeriodicalId":6307,"journal":{"name":"2008 IEEE/OES US/EU-Baltic International Symposium","volume":"48 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2008-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78729645","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: 3

Changes in hydrographic conditions associated with 2005–2007 storm surges in the Odra mouth — a numerical study 与2005-2007年奥德拉口风暴潮有关的水文条件变化——数值研究

2008 IEEE/OES US/EU-Baltic International Symposium Pub Date : 2008-05-27 DOI: 10.1109/BALTIC.2008.4625518

H. Kowalewska-Kalkowska, M. Kowalewski

引用次数: 1