The PALSAR was an active microwave sensor which was not affected by weather conditions and operable both day and night.
After five years of service, the satellite lost power and ceased communication with Earth, but remains in orbit.
Advanced Land Observing Satellite-2 (ALOS-2), juga disebut Daichi-2, adalah satelit Jepang 2-ton yang diluncurkan pada tahun 2014. ALOS, also referred to as DAICHI, (the Japanese often give two names to each of their space projects; the names are used interchangeably in the JAXA literature), captured 6.5 million scenes during its five years of operation. ALOS PALSAR returned to the original path (repeat cycle) every 46 days. Interferometric synthetic aperture radar, abbreviated InSAR (or deprecated IfSAR), is a radar technique used in geodesy and remote sensing.This geodetic method uses two or more synthetic aperture radar (SAR) images to generate maps of surface deformation or digital elevation, using differences in the phase of the waves returning to the satellite or aircraft.
Advanced Land Observing Satellite (ALOS), atau dalam bahasa Jepang disebut Daichi, adalah sebuah satelit yang diluncurkan oleh Japan Aerospace Exploration Agency pada 24 Januari 2006. The global forest/non-forest map (FNF) is generated by classifying the SAR image (backscattering coefficient) in the global 25m resolution PALSAR-2/PALSAR SAR mosaic so that strong and low backscatter pixels are assigned as "forest" and "non-forest", respectively. The PALSAR-2 radar is a significant upgrade of the PALSAR radar, allowing higher-resolution (1x3m per pixel) spotlight modes in addition to the 10m resolution survey mode inherited from the ALOSspacecraft… The PALSAR was a right-looking SAR using L-band frequency with a cross-track pointing capability of 18º – 55º.Below are data or web applications associated with this project.The EarthExplorer (EE) user interface is an online search, discovery, and ordering tool developed by the United States Geological Survey (USGS).
Meskipun satelit ALOS pendahulunya telah menampilkan 2 kamera optik selain radar 1,2 GHz (L-band), ALOS-2 memiliki kamera …
PALSAR Name Description ALOS Data Users Handbook, 2008 Overview of the ALOS Project and related technological information on satellites and land systems ALOS User Guide Overview, products, product format, operations…Creation of radiometrically terrain-corrected (RTC) products is a project of the Alaska Satellite Facility that makes SAR data accessible to a broader community of users….ALOS Phased Array type L-band Synthetic Aperture Radar Mission From 2006 to 2011, PALSAR’s L-band synthetic aperture radar (SAR) yielded detailed, all-weather, day-and-night observation, as well as repeat-pass interferometry. This improvement became possible by adding a “Spotlight mode” which enables the satellite to change its radio wave radiation direction to its moving direction (vertical direction) while flying to keep observing one specific target location for a long time.◆Promptly responding to water disaster due to torrential rain and landslidesBy focusing on one specific instrument, we can maximize the SAR’s performance for the ALOS-2 to be best suitable for its primary purpose of monitoring disasters regardless of the time of day and whether conditions.◆To understand land deformation due to earthquake２）A “Dual receiving antenna system” is adopted to secure enough observation band with high resolution. ALOS-2, as successor to ALOS(PALSAR), has been significantly improved in resolution, observation area, data delivery speed and radar capacity.
[butuh rujukan] Peluncuran ALOS menggunakan roket H-II A di Tanegashima Space Center, Jepang.Jangka waktu misi satelit ini adalah 3-5 tahun.
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