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With the rapid development of remote sensing and computer technologies, remote sensing image data obtained by satellite isincreasing dramatically [1]. The speed has exceeded one TB each day and will obviously increase in the future. How to manage it efficiently becomes a problem because traditional waysare expensive and difficultto extend. Hence, we need a scalable and parallel processing model. HBaseand...
Geospatial data is the core of spatial information system. It is always a research hotspot of how to realize the sharing and integration applications of distributed geospatial data. OGC has developed a number of web services specifications that enable the interoperation of heterogeneous geospatial data sources. Grid is the technology enabling resource sharing and coordinated problem solving in dynamic,...
In order to develop an effective technical methodology for environmental pollution data management and modeling, this paper propose an integrated framework for pollution modeling based on the GIS database. Three layers, including the pollution data management layer, the modeling and analysis layer, and the application layer, construct the complete framework. Design issues of the framework are discussed...
Traffic flow is a fundamental measure in transportation. Accurate traffic flow prediction also is crucial to the development of intelligent transportation systems and advanced traveler information systems. A novel multiscale wavelet support vector regression method (MW-SVR) is proposed for traffic flow prediction. Based on wavelet multi-resolution analysis, a scaling kernel function with multi-resolution...
Geophysical model function (GMF) is the basis and prerequisite for the ocean surface wind vector retrieval with scatterometers. Among many operational models, the Qscat-1 model was specifically developed for SeaWinds scatterometer and is being applied to its operational wind retrieval. This paper is to validate the accuracy of the Qscat-1 model by using some SeaWinds Level 2 data and corresponding...
Geophysical model function is the basis for the wind vector retrieval with scatterometer and a number of models have been developed to operationally retrieve the ocean surface wind in the past three decades. However, none of the operational models ever took the water surface temperature into account in its modeling, which is considered to have some effect on the ocean backscattering, and in turn on...
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