Data
| December 16, 2011 Basemaps DefinedDataWhat is a basemap? The term basemap is see often in GIS and refers to a collection of GIS data and/or orthorectified imagery that form the background setting for a map. The function of the basemap is to provide background detail necessary to orient the location of the map. Basemaps also add to the aesthetic ... read more December 7, 2011GIS DataData, Link LibraryThis is the launch page for finding information about GIS data: what is GIS data, what are the different types of GIS data, what are errors in GIS data, metadata, and where to find GIS data on the Internet. Introduction to GIS Data Geodatabases Explored – Vector and Raster Data Vector and raster data types (including aerial and ... read more December 5, 2011 Data Appeal: 3D Visualization of GIS DataData, Internet MappingDataAppeal is data visualization service that takes GIS data one step further with 3D visualizations. The underlying premise of DataAppeal is the use of more artistic design to represent point geospatial data. Instead of flat 2D layers, the data is symoblized using a 3D and animated data visualization tool (EarthAppealTM). DataAppeal’s Nadia Amoroso explains: DataAppeal uses art ... read more December 1, 2011GIS File FormatsDataThere are well over 100 GIS, CAD and Remote Sensing applications on the market. Listed here are some of the more common file formats along with associated file extension (the last 3 charcters after the period in the file name). File formats are categorized as vector, raster, imagery, and legacy GIS file formats. Vector File Format Vector files ... read more  Fabric Engine: 3D LiDAR Rendering Via Web BrowsersData, Internet MappingFabric Engine enables developers to create compute-intensive web applications with comparable performance to native, multi-threaded applications. Fabric Engine achieves this by tapping into all of the processing power of the user’s computer – something that normal web-based applications cannot do. For the GIS market, this means that any web programmer can develop solutions for visualizing ... read more November 30, 2011 New Global Elevation Data Available to Download: Global Multi-resolution Terrain Elevation Data 2010DataThe U.S. Geological Survey (USGS) and the National Geospatial-Intelligence Agency (NGA) have released an updated and more accurate global elevation model that pulls data from Digital Terrain Elevation Data (DTED®) from the Shuttle Radar Topography Mission (SRTM); Canadian elevation data; SPOT 5 Reference 3D data; data from NASA’s Ice, Cloud, and land Elevation Satellite (ICESat); and ... read more November 25, 2011Geosk: GIS Data as a Service (Daas)DataWhats is Geosk and what does it mean for GIS data delivery? Scott Robinson, Director, Global Data Products at Pitney Bowes Business Insight, explains what Geosk means for GIS Data as a Service (DaaS) and how cloud computing can be used to delivery GIS data online. read more...November 9, 2011 Explaining How Dark Sky WorksData, ProgrammingDark Sky is a short term weather predictor protoype for iOS devices (more about the developers efforts to turn this into an app at the end of this post). Dark Sky predicts the time and duration of weather at the local level within a window of 30-60 minutes into the future. From the Dark Sky ... read more November 6, 2011 GIS Data: A Look at Accuracy, Precision, and Types of ErrorsDataThere is no such thing as the perfect GIS data. It is a fact in any science, and cartography is no exception. However, the imperfection of data and its effects on GIS analysis had not been considered in great detail until recent years. In the last decade, GIS specialists started to accept that error, inaccuracy, ... read more October 23, 2011 Updated 3D Global Topo Data from NASADataBased on measurements from NASA’s Terra spacecraft, a new 3D topographic map has been released as a joint effort by NASA and Japan. The digital elevation model (DEM) was developed from imagery obtained from the Japanese Advanced Spaceborne Thermal Emission and Reflection Radiometer, or ASTER, instrument aboard Terra. ASTER is one of five Earth-observing instruments launched Dec. 18, ... read more |
