Technology

Technology Committee was established to support StateView consortia members who are particularly interested in advancing the uses and applications of remotely sensed data and geospatial technology, and to organize larger projects that involve several states. The Technology Committee is led by Dr. Sam Batzli of University of Wisconsin-Madison and PI of WisconsinView and PR Blackwell of TexasView. The committee addresses a range of issues, focusing primarily on data visualization and distribution.  Specifically, the Technology Committee provides a forum for:

  • Scholarly exchange of insights and experiences;
    ftm_2010_ssec_rooftop_group

    A satellite data receiving station at the University of Wisconsin-Madison.

  • Developing and sharing of technical expertise;
  • Fostering and developing collaborative data archive, data distribution, and related web services projects.

The Technology Committee maintains a wiki site open to all AmericaView consortia members. The wiki provides an open forum for exchanging ideas, hosting technical documents and committee plans, and facilitates the organization of committee meetings.

AmericaView Multi-State Server (AVMSS).  Ten states are working on a joint project to distribute high resolution imagery as a tiled web service.  These tiles are pre-rendered (for performance) and available in a range of projections, such as WGS84 (suitable for overlaying in Google Earth), spherical Mercator (suitable for overlaying on many existing tiles such as Google Maps, Yahoo Maps, Bing Maps, etc), and a locally appropriate coordinate system (suitable for state and local governments).

The project uses hardware initially constructed by AlaskaView and supports software based on an existing WisconsinView web mapping system called “RealEarth.™”  The project is expandable (by purchasing additional drives) in future years, if other StateViews would like to participate.  Contributions to the joint effort include:

  • AlaskaView deployed the initial hardware in partnership with the hosting site of TexasView
  • WisconsinView deployed the initial software stack
  • All StateViews contributing data that will be distributed as WMS and tile feeds will submit their data in GeoTIFF format (e.g. NAIP DOQQs)
  • North DakotaView will produce educational materials
  • WisconsinView will provide mobile device integration
  • TexasView NAIP can be viewed here

The Earth Observation Depot Network (EODN) is a distributed cloud, open-content, distribution network for remote sensing data.  It is essentially the next generation REDDnet.  It is a distributed storage service that capitalizes on resources from the NSF-funded GENI and Data Logistics Toolkit (DLT) projects. The Intelligent Data Movement Service (IDMS), a deployment of the DLT on the NSF-funded GENI cloud infrastructure, realizes EODN to enable open access, reduced latency, and fast downloads of valuable Earth science information collected from satellites and other sensors. Beyond basic storage capacity, the IDMS-EODN system includes mechanisms for optimizing data distribution throughout the depot network while also taking into account the desired locality of user data. Accelerating access enables better synchronization of disparate imagery sets and facilitates new cross disciplinary research applications.

  • MichiganView provides project coordination and support for EODN proposals.
  • TexasView hosts several depots and provides software integration between the AVMSS server and EODN.
  • WisconsinView hosts several EODN depots and uploads Landsat 8 imagery to RealEarth through EODN.
  • IndianaView runs a high-capacity depot
  • IowaView runs a depot
  • UtahView, OklahomaView, NorthDakotaView, among others, have expressed interest in deploying depots at their locations.