The
network subcentre of the Chinese Information System for Economics
and Remote sensing is based on a key project of application
research, Macro Survey, and Dynamic Research on Remote Sensing
for National Resources, conducted by the China Academy of
Science in the course of the eighth Five-Year Plan, and Establishment
of Dynamic Service System for National Fundamental Resources,
and Environmental Remote Sensing Information, the most important
one among national key science and technology development
projects in the ninth Five-Year Plan. It is combined with
integration technologies of information-sharing on sustainable
development and has accumulated data resources of surface
ecosystems on the land and remote sensing information of land
utilization in China. It serves for data searching and accession
through metadatabases and other diversified searching tools.
The metadata of spatial data are managed by database operations
and enable the users to search by hypertexts. In the graph
formulation of some grid data it will do alligatoring processing
for some details in diagrams.
The information has two forms of appearance in the subcentre
in China Information System for Economies: as statistics
or in texts and graphs. Information statistics of macro
economics is saved in a database in the format of Microsoft
SQL Server 7.0. It forms hypertexts through ASP and is transmitted
to Web servers and is released on the web by Microsoft IIS(Internet
Information Server). The data quota is about 60MB, which
includes:
Annual database of national macro economies
Monthly database of national macro economies
National annual database of regional economies
Monthly database of regional eco-economy
Graphical database of regional economy analysis