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What is the Spatial Data Access Tool (SDAT)?

Introduction to the SDAT user interface.

What are OGC standards?

Introduction to ORNL DAAC OGC Services

How to use the ORNL DAAC OGC services?

ORNL DAAC OGC Map Widget

Publications

Related Documents

Frequently Asked Questions (FAQ)


What is the Spatial Data Access Tool (SDAT)?

   https://webmap.ornl.gov/ogcdown

The ORNL DAAC Spatial Data Access tool (SDAT) is an Open Geospatial Consortium (OGC) standards-based Web application to visualize and download spatial data in various user-selected spatial/temporal extents, file formats, and projections. Several data sets including land cover, biophysical properties, elevation, and selected ORNL DAAC archived data are available through SDAT. KMZ files are also provided for data visualization in Google Earth.


Introduction to the SDAT User Interface

SDAT provides a Web-based user interface. It includes 3 categories of web pages:
  1. Main Page: provides a list of all the available data sets, their preview images, a keywords search box, and links to metadata pages and KMZ files.
  2. Data Set Page: lists all the available data granules (or files) contained in a data set, along with their preview images and brief spatial and temporal metadata.
  3. Data Granule Page: provides rich file-level metadata information on the top, OpenLayers-based interactive map widget in the middle, and WCS-based options for on-demand data access on the bottom.


What are OGC Standards?

The Open Geospatial Consortium (OGC) specifications serve to standardize geospatial information from difference aspects, including representation, management, monitoring, processing, and application.


Introduction to ORNL DAAC OGC Services

The visualization and download capacilities provided by SDAT are based on ORNL DAAC OGC services. The ORNL DAAC OGC services were developed on MapServer . The OGC services include Web Coverage Service (WCS) v1.0.0 and Web Map Service (WMS) v1.1.1.


How to Use ORNL DAAC OGC Services


ORNL DAAC OGC Map Widget


Publications

  • Yaxing Wei; Santhana-Vannan, S.-K.; Cook, R.B.; , "Discover, visualize, and deliver geospatial data through OGC standards-based WebGIS system," Geoinformatics, 2009 17th International Conference on , vol., no., pp.1-6, 12-14 Aug. 2009, doi: 10.1109/GEOINFORMATICS.2009.5293520


Related Documents


Frequently Asked Questions (FAQ)

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