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Airbus Defence and Space has officially launched its WorldDEM Digital Terrain Model (DTM), a highly accurate standardized representation of bare Earth elevation that can be made available for any point on the globe. This addition completes the WorldDEM portfolio enabling Airbus Defence and Space to provide both surface and terrain elevation information, in support of global customer projects. WorldDEM is based on data acquired by the high-resolution radar satellites TerraSAR-X and TanDEM-X, which started synchronous data acquisition in December 2010 and completed coverage of the Earth’s entire landmass twice over in mid-2013. The satellites covered more complex terrain areas with a third and fourth acquisition campaign to ensure consistent high quality and accuracy of the final product. WorldDEM provides the first global, single-source, high-precision Digital Surface Model and has established a new standard of global elevation models. · Digital Terrain Models (DTMs) based on WorldDEM are now commercially available · WorldDEM DTM can be delivered for over 90 Million km² of the Earth’s landmass source : http://gisuser.com/2015/04/airbus-defence-and-space-launches-worlddem-digital-terrain-model-the-new-bare-earth-elevation-model/

Dear All, I am trying to open TRMM netcdf format. I have tried to open using Multidimensional Tools >> Make NetCDF Raster Layer, but nothing happened after the process is finished. Could somebody suggest me how to process netcdf? I've followed every step based from the Arcgis Help tutorial and i downloaded the TRMM data from NASA website. regards

Geoportals provide a single point of access for searching for and downloading GIS data from a multitude of sources. Users looking for GIS data can search a variety of geoportals for government and open GIS data. President Clinton signed an executive order in 1994 mandating the establishment of a federal spatial data infrastructure depository (Budhathoki, Bruce, & Nedovic-Budic, 2008). The resulting United States National Spatial Data Infrastructure (NSDI) is considered the first geoportal concept. Since then, hundreds of geoportals have been established by government agencies such as data.gov for downloading open data from the United States government, commercial GIS companies such as Esri recently launched ArcGIS Open Data effort, and universities. . Tufts, Harvard, and MIT have spearheaded the development of OpenGeoportal.org, which is self-described as an “open source, federated web application to rapidly discover, preview, and retrieve geospatial data” and universities that are applying this software include UC Berkeley Geospatial Data Repository, Harvard Geospatial Library, and GeoData@Tufts. A list of multi-organizational and national geoportals: ArcGIS Online (Global) INSPIRE (Europe) GEOSS (Global Earth Observation Data) Land Information New Zealand Data Service (New Zealand) Geoportal Patrimonio Natural y de la Biodiversidad del Estado español (Spain) Geoportal Spain is Culture (Spain) Geoportal Pueblos Arquitectura Negra Guadalajara (Spain) Geoportal hotelmapspain-madrid (Spain) Geoportal Campiña de Jerez (Spain) Geoportal Madrid (Spain) IDE Andorra (Andorra) Geoportal de Chile (Chile) Geoportal del Departamento Nacional de Estadística Colombia (Colombia) Geoportal (Croatia) Geodata-info (Denmark) Geoportal (Finland) Geoportail (France) GeoVisitGuatemala (Guatemala) India NSDI Portal (India) Portale Cartografico Nazionale (Italy) Geoportal (Lithuania) Geoportal (Luxembourg) PDOK (Netherlands) UNSDI Netherlands GeoNetwork portal (Netherlands) Geospatial Data Service Centre (Netherlands) GeoNorge (Norway) Geoportal (Poland) SNIG (Portugal) Geoportal of RosKosmos (Russian Federation) NSDI of Russian Federation (RU) Geoportal (Serbia) IDEE (Spain) Geoportal Bund (Switzerland) UK GeoPortal (UK) GoGeo (UK) Data.gov (USA) Geospatial Platform (USA) NSDI Clearinghouse Network (USA) Geoportal Simón Bolívar (Venezuela) source : http://www.gislounge.com/geoportals/

NTT DATA and RESTEC distribute digital 3D topographic data covering the land of the entire world which shows undulations of terrain over the world in 5m resolution using PRISM data acquired by Advanced Land Observing Satellite "Daichi" (ALOS) of the Japan Aerospace Exploration Agency (JAXA). Products : Digital Elevation Model (DEM), Orthorectified Image, Processed products Resolution : 5m (DEM), 2.5m (Orthorectified image) Accuracy : 5m horizontal and vertical Area : Land area of the Entire World (* The product will be distributed sequentially starting in areas that have been developed, and by March of 2016, the entire world is scheduled to be completed. ) lates news for their sites : 2014.8.4 Availability map, sample request form and technical documents are published. 2014.7.7 Price list release 2014.2.24 Published site : http://alos-world3d.jp/en/index.html