The Data Services component provides users a common
data environment to retrieve and integrate geospatial data from
distributed data archives in an interoperable manner. The OGC
Web Coverage Service (WCS) provides intact multi-dimensional
and multi-temporal geospatial data as a “coverage”
to meet the requirements of client-side rendering, input for
scientific models, and other clients beyond simple viewers [11].
The OGC Web Feature Service (WFS) supports the networked
interchange of geographical vector data as “features” encoded
in Geographic Markup Language (GML) [12]. The OGC Web
Map Service (WMS) provides geospatial data as a “map”
which is generally rendered in a spatially referenced pictorial
image format such as PNG, GIF or JPEG, dynamically from
real geographical data [13].