Beijing 2008 Olympic Games is a grand event of China

also an historic opportunity for Beijing.Giving a high-level Olympic Games with distinguishing features is a solemn promise China and Beijing have made to the world.High Technology always makes significant contributions to fulfill the great success of Olympic games

while remote sensing

Geographic Information System

and Global Positioning System are new technologies that gradually been used for the planning and management.Dynamic monitoring of Beijing Olympic venue using remote sensing technology directly served the "Green Olympics" in this project.This project is supported by Ministry of Science and Technology under the "Hi-tech Olympic Program" and the Chinese Academy of Sciences under the "CAS Hi-tech Olympic program".Institute of Remote Sensing Applications undertook the project and carried out the continuous and stereo monitoring with focuses on the status and changes made during Beijing Olympic venue construction

delivered seasonal and annual reports

and developed virtual simulating system for Beijing Olympic Venue Construction

which serving as an important spatial information source for "Digital Olympics".Multi-temporal high-spatial resolution data have been collected nearly for 7 years

with observation cycle 1 year for airborne remote sensing

and 3 months for satellite remote sensing.Using these satellites and airborne remote sensing data

we extracted thematic information for venue construction project（venue distribution

project schedule

old house breaking and building

etc.）

traffic project（highway

railway

subway

etc.）

as well as environment project（greenbelt

water body

landuse

etc.）

and carried out thematic analysis and dynamic evaluation.All these monitoring results have been released in the form of seasonal and annual reports.Meanwhile

we developed a virtual reality system for Beijing Olympic venue construction and environment monitoring

and a virtual Olympic scenarios releasing and browsing system based on Internet

with our own copyright.Remote sensing data and field data of Beijing Olympic venue

Wukesong Gymnasium

and district from Huixin East Bridge to XueYuan Road were first collected

and then virtual environments were built for them.OpenFlight format was adopted to manage simulated data for these districts

and simulation system was developed through model simplification

real-time rendering optimization and CPU performance optimization.And in the end a network virtual simulation system for Beijing Olympic venue construction and environment monitoring was developed using ActiveX/COM+/DCOM component technology and OSG（OpenSceneGraph） three-dimensional graphics engine.Those three-dimensional

continuous

and accumulated observation data and standard products were directly delivered to the Beijing Organizing Committee for the Games of the XXIX Olympiad（BOCOG） and the Beijing authorities

which effectively served for Olympic planning and construction

providing scientific data and information for "Green Olympics".Airborne remote sensing images acquired in this project were used by the Construction & Project Planning Department of Olympic Committee and Beijing Municipal Commission of Urban Planning for Olympic Park planning and designing

traffic planning and designing for the park and its surrounding areas.