The OGC-standard Compliant Global
Landsat Data Server
Liping Di, Peisheng Zhao, Yaxing Wei, and Yang Liu
Center for Spatial Information Science and Systems (CSISS)
Landsat data is one of longest
remotely sensed time-series products. The data has been widely used in all
aspects of remote sensing applications. Several years ago, NASA made the global
coverage of best quality Landsat data for year 2000, 1990, and 1975 available
to the user community free of charge. These freely available datasets are
geometrically corrected in UTM projection and stored as standard Landsat scenes
in GeoTiff format. The total amount of data is about 17.5 Tb. How to make the Landsat
data easily accessible to the user community is a big issue. As a part of CEOS
WGISS activities, the Center for Spatial Information Science and Systems
(CSISS), George Mason University, has developed and operated a Landsat data
server for making the Landsat data available to the user community through the
standard Catalog Service for the Web (CSW) and Web Coverage Service (WCS)
protocols developed by the Open Geospatial Consortium (OGC). The data server
allows users to discover the data they want and to obtain the discovered data
in the format, projection, spatial coverage, and spatial resolution they
specify. This paper describes the development and operation of the Landsat data
server.