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ALOS satellite imagery
ALOS (Advanced Land Observation Satellite) was launched on January 24, 2006 from Tanegashima Cosmodrome, Japan. JAXA Japan Aerospace Exploration Agency owns the satellite. ALOS was set into sun-synchronous orbit at the height of 691.65 km.
ALOS is fitted with L-diapason radar (PALSAR) intended for 24-hour all-weather Earth survey and acquiring imagery of resolution from 10 to 100 m.
PALSAR sensor may modify off-nadir angle in 10-51 range using technology of phased-array antenna with 80 receive/transmit modules. Being high resolution and essential "Fine mode" regime is considered to be primary interferometric observation mode. ScanSAR mode enables to acquire swath width of 350km with solitary horizontal (HH) or vertical (VV) polarization and with 100 m spatial resolution in long- and cross-directions. Polirimetric mode will be used as experimental. Polarization is changing in every pulse transmission and dual polarization signals are being received together. With maximum data transmission rate (240mbit/sec) it is available to get 30 km swath width of 30 m spatial resolution. Estimated lifetime is 5 years at least.
ALOS satellite imagery application
- Creation and refreshing of topographical maps and special plans up to 1:50 000 scale
- DEM and DSM high resolution creation (up to 5-10 meters height accuracy)
- Investigating and analysis of earth movements by interferometer methods.
- Natural resources usage control.
- Forest grade identifying, monitoring of forest state and devastation.
- Observing natural hazards.
- Diversity of scientific investigation implementation.
- Application realizes.
More detailed information about ALOS satellite you may get by following the link www.alos-satellite.ru . |
