A VR-Ocean system for interactive geospatial analysis and 4D visualization of the marine environment around Antarctica : Geospatial Cyberinfrastructure for Polar Research
Identifieur interne : 000854 ( Main/Exploration ); précédent : 000853; suivant : 000855A VR-Ocean system for interactive geospatial analysis and 4D visualization of the marine environment around Antarctica : Geospatial Cyberinfrastructure for Polar Research
Auteurs : WENQING LI [République populaire de Chine] ; GE CHEN [République populaire de Chine] ; QIANQIAN KONG [République populaire de Chine] ; ZHENZHEN WANG [République populaire de Chine] ; CHENGCHENG QIAN [République populaire de Chine]Source :
- Computers & geosciences [ 0098-3004 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Milieu marin, Satellite, GEOSAT, Glace, Simulation numérique, Mers Antarctiques, Modèle numérique élévation, Topographie, Bathymétrie, Région Polaire, Géométrie, Carte, Niveau mer, Anomalie, Eau mer, Etude cas, Modèle 3 dimensions, Prévision, Ordinateur, Traitement donnée, Simulation 4 dimensions, Antarctique.
- Wicri :
- topic : Milieu marin, Satellite, Glace, Ordinateur.
English descriptors
- KwdEn :
Abstract
The development of the VR-Ocean system coincides with the first availability of more than 15 years (1992-2009) of the merged altimeter data from up to four concurrent satellite missions (Topex/ Poseidon, ERS-1 and 2, ENVISAT, Jason-1, and Geosat Follow-On) and ETOPO1 Ice Surface data (1 arc-minute global relief model of the Earth's surface that integrates land topography and ocean bathymetry). In the polar-region-oriented VR-Ocean system, the seabed and continental topography data south of 45°S were organized in a circular area and rendered in the form of geometry clipmaps. Maps of Sea-Level Anomalies (MSLA) data for the same district were extracted and streamlined in time order. A memory-mapped file was used to accelerate file loading speed, and sea surfaces of different times were rendered in turn as a vertex buffer object (VBO) and accelerated by the graphic processing unit (GPU). As a result, roaming anywhere at any angle of view and geospatial analysis are interactively obtained and dynamically presented in real-time using the 4D VR-Ocean system. As an attempt, we did a case study on ice melting and sea-level rise around the Antarctic. This system is expected to make a significant contribution to the description, understanding, prediction, and demonstration of 4D information and properties on both regional and hemispheric scales in a virtual environment.
Affiliations:
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Marine Information Technology, Ministry of Education</s1><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Engineering Research Center of Marine Information Technology, Ministry of Education</wicri:noRegion></affiliation></author><author><name sortKey="Chengcheng Qian" sort="Chengcheng Qian" uniqKey="Chengcheng Qian" last="Chengcheng Qian">CHENGCHENG QIAN</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Marine Technology, College of Information Science and Engineering, Ocean University of China</s1><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Department of Marine Technology, College of Information Science and Engineering, Ocean University of China</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Engineering Research Center of Marine Information Technology, Ministry of Education</s1><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Engineering Research Center of Marine Information Technology, Ministry of Education</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Computers & geosciences</title><title level="j" type="abbreviated">Comput. geosci.</title><idno type="ISSN">0098-3004</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Computers & geosciences</title><title level="j" type="abbreviated">Comput. geosci.</title><idno type="ISSN">0098-3004</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Antarctic Seas</term><term>Antarctica</term><term>Geosat</term><term>anomalies</term><term>bathymetry</term><term>case studies</term><term>computers</term><term>data processing</term><term>digital elevation models</term><term>digital simulation</term><term>geometry</term><term>ice</term><term>maps</term><term>marine environment</term><term>polar regions</term><term>prediction</term><term>satellites</term><term>sea level</term><term>sea water</term><term>three-dimensional models</term><term>topography</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Milieu marin</term><term>Satellite</term><term>GEOSAT</term><term>Glace</term><term>Simulation numérique</term><term>Mers Antarctiques</term><term>Modèle numérique élévation</term><term>Topographie</term><term>Bathymétrie</term><term>Région Polaire</term><term>Géométrie</term><term>Carte</term><term>Niveau mer</term><term>Anomalie</term><term>Eau mer</term><term>Etude cas</term><term>Modèle 3 dimensions</term><term>Prévision</term><term>Ordinateur</term><term>Traitement donnée</term><term>Simulation 4 dimensions</term><term>Antarctique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Milieu marin</term><term>Satellite</term><term>Glace</term><term>Ordinateur</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The development of the VR-Ocean system coincides with the first availability of more than 15 years (1992-2009) of the merged altimeter data from up to four concurrent satellite missions (Topex/ Poseidon, ERS-1 and 2, ENVISAT, Jason-1, and Geosat Follow-On) and ETOPO1 Ice Surface data (1 arc-minute global relief model of the Earth's surface that integrates land topography and ocean bathymetry). In the polar-region-oriented VR-Ocean system, the seabed and continental topography data south of 45°S were organized in a circular area and rendered in the form of geometry clipmaps. Maps of Sea-Level Anomalies (MSLA) data for the same district were extracted and streamlined in time order. A memory-mapped file was used to accelerate file loading speed, and sea surfaces of different times were rendered in turn as a vertex buffer object (VBO) and accelerated by the graphic processing unit (GPU). As a result, roaming anywhere at any angle of view and geospatial analysis are interactively obtained and dynamically presented in real-time using the 4D VR-Ocean system. As an attempt, we did a case study on ice melting and sea-level rise around the Antarctic. This system is expected to make a significant contribution to the description, understanding, prediction, and demonstration of 4D information and properties on both regional and hemispheric scales in a virtual environment.</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li></country></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Wenqing Li" sort="Wenqing Li" uniqKey="Wenqing Li" last="Wenqing Li">WENQING LI</name></noRegion><name sortKey="Chengcheng Qian" sort="Chengcheng Qian" uniqKey="Chengcheng Qian" last="Chengcheng Qian">CHENGCHENG QIAN</name><name sortKey="Chengcheng Qian" sort="Chengcheng Qian" uniqKey="Chengcheng Qian" last="Chengcheng Qian">CHENGCHENG QIAN</name><name sortKey="Ge Chen" sort="Ge Chen" uniqKey="Ge Chen" last="Ge Chen">GE CHEN</name><name sortKey="Ge Chen" sort="Ge Chen" uniqKey="Ge Chen" last="Ge Chen">GE CHEN</name><name sortKey="Qianqian Kong" sort="Qianqian Kong" uniqKey="Qianqian Kong" last="Qianqian Kong">QIANQIAN KONG</name><name sortKey="Qianqian Kong" sort="Qianqian Kong" uniqKey="Qianqian Kong" last="Qianqian Kong">QIANQIAN KONG</name><name sortKey="Wenqing Li" sort="Wenqing Li" uniqKey="Wenqing Li" last="Wenqing Li">WENQING LI</name><name sortKey="Zhenzhen Wang" sort="Zhenzhen Wang" uniqKey="Zhenzhen Wang" last="Zhenzhen Wang">ZHENZHEN WANG</name><name sortKey="Zhenzhen Wang" sort="Zhenzhen Wang" uniqKey="Zhenzhen Wang" last="Zhenzhen Wang">ZHENZHEN WANG</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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