About ALOS PALSAR
ALOS Phased Array type L-band Synthetic Aperture Radar
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. PALSAR data are from multiple observation modes with variable polarization, resolution, swath width, and off-nadir angle.
PALSAR was one of three instruments on the Advanced Land Observing Satellite-1 (ALOS), also known as DAICHI, developed to contribute to the fields of mapping, precise regional land-coverage observation, disaster monitoring, and resource surveying. ALOS was a mission of the Japan Aerospace Exploration Agency (JAXA).
ASF PALSAR Products
See Find Data
PALSAR Technical Specs — Beam Modes
Palsar has two fine beam modes: single polarization (FBS) and dual polarization (FBD), as well as quad polarization, also known as polarimetric mode (PLR). ScanSAR wide beam (WB1, WB2) operates with a considerable loss of resolution. See table below.
|Beam Mode||FBS||FBD||WB1 WB2||PLR|
|Center Frequency||L-Band (1.27 GHz)|
|Polarization||HH or VV||HH+HV or VV+VH||HH or VV||HH+HV+VV+VH|
|Off-Nadir Angle||34.3° (default)||27.1° (default)||21.5° (default)|
PALSAR cannot observe the areas beyond 87.8 degrees north latitude and 75.9 degrees south latitude when the off-nadir angle is 41.5 degrees.
Read more on the JAXA website.