Case study of visualizing global user download patterns using Google Earth and NASA World Wind
نویسندگان
چکیده
Geo-visualization is significantly changing the way we view spatial data and discover information. On the one hand, a large number of spatial data are generated every day. On the other hand, these data are not well utilized due to the lack of free and easily used data-visualization tools. This becomes even worse when most of the spatial data remains in the form of plain text such as log files. This paper describes a way of visualizing massive plain-text spatial data at no cost by utilizing Google Earth and NASAWorld Wind. We illustrate our methods by visualizing over 170,000 global download requests for satellite images maintained by the Earth Resources Observation and Science (EROS) Center of U.S. Geological Survey (USGS). Our visualization results identify the most popular satellite images around the world and discover the global user download patterns. The benefits of this research are: 1. assisting in improving the satellite image downloading services provided by USGS, and 2. providing a proxy for analyzing the “hot spot” areas of research. Most importantly, our methods demonstrate an easy way to geovisualize massive textual spatial data, which is highly applicable to mining spatially referenced data and information on a wide variety of research domains (e.g., hydrology, agriculture, atmospheric science, natural hazard, and global climate change). © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JRS.6.061703]
منابع مشابه
Continuous Interaction with TDK: Improving the User Experience in Terralib
Historically, visual display has always played a very important role in GIS applications. However, visual exploration tools do not scale well when applied to huge spatial data sets. More recently, faster processing hardware and more sophisticated computer graphics has been used to improve user experience for geospatial data visualization. Some applications have recently introduced the concept t...
متن کاملGoogle Earth Visualizations: Preview and Delivery of Hydrographic and Other Marine Datasets
Existing hydrographic data analysis and visualization tools are very powerful, but lack easy access to web data management tools. Virtual globe software provides a gateway to a host of important data products in formats usable by specialized tools such as CARIS, Fledermaus, and Arc/Info. With virtual globe interfaces, users see complimentary and consistent geographic representations of availabl...
متن کاملWeb GIS in practice X: a Microsoft Kinect natural user interface for Google Earth navigation
This paper covers the use of depth sensors such as Microsoft Kinect and ASUS Xtion to provide a natural user interface (NUI) for controlling 3-D (three-dimensional) virtual globes such as Google Earth (including its Street View mode), Bing Maps 3D, and NASA World Wind. The paper introduces the Microsoft Kinect device, briefly describing how it works (the underlying technology by PrimeSense), as...
متن کاملVisualization of Nasa A-train Vertical Data on Google Earth
Google Earth is becoming a popular browser for online geographic-related data and information. It integrates satellite imagery, aerial photography, digital map data, and social-economic data to make a virtual three dimensional interactive template of our living planate. The Keyhole Markup Language, promoted by Google Inc., offers easy and convenient interfaces for people publishing, sharing and...
متن کاملVisualization of Large Geospatial Data Sets
The Earth Resources Observation and Science (EROS) Center of U.S. Geological Survey EROS is currently managing and maintaining the world largest satellite images distribution system, which provides 24/7 free download service for researchers all over the globe in many areas such as Geology, Hydrology, Climate Modeling, and Earth Sciences. A large amount of geospatial data contained in satellite ...
متن کامل